TROPICAL STORM ISAIAS
TROPICAL STORM
Location:
37.7N
-76.8W
Maximum Sustained Winds:
70 MPH
Minimum Central Pressure:
993 mb
Moving:
NNE OR 25 DEGREES at
33 MPH
THE CENTER OF
TROPICAL STORM ISAIAS IS:
ABOUT 15 MI...20 KM SSE OF TAPPAHANNOCK VIRGINIA
ABOUT 15 MI...20 KM SSE OF TAPPAHANNOCK VIRGINIA
FIVE DAY TRACK - NHC
FLOATER SATELLITE - NOAA
LIKELY ARRIVAL OF 34 KT+ WINDS - NHC
WILMINGTON, NC RADAR - NWS
NHC
ADVISORIES
000
WTNT34 KNHC 041158
TCPAT4
BULLETIN
Tropical Storm Isaias Intermediate Advisory Number 29A
NWS National Hurricane Center Miami FL AL092020
800 AM EDT Tue Aug 04 2020
...CENTER OF ISAIAS MOVING ACROSS SOUTHEASTERN VIRGINIA...
...STRONG WINDS...HEAVY RAINFALL...AND THE THREAT OF TORNADOES WILL
SPREAD NORTHWARD ALONG THE MID-ATLANTIC COAST THIS MORNING...
SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...37.7N 76.8W
ABOUT 15 MI...20 KM SSE OF TAPPAHANNOCK VIRGINIA
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 33 MPH...54 KM/H
MINIMUM CENTRAL PRESSURE...993 MB...29.33 INCHES
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
The Storm Surge Warning has been discontinued for the Neuse River
North Carolina.
The Storm Surge Watch has been discontinued.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Warning is in effect for...
* Pamlico and Albemarle Sounds
* Ocracoke Inlet North Carolina to the North Carolina/Virginia
border
A Tropical Storm Warning is in effect for...
* North of Surf City North Carolina to Eastport Maine
* Pamlico and Albemarle Sounds
* Chesapeake Bay
* Tidal Potomac River
* Delaware Bay
* Long Island and Long Island Sound
* Martha's Vineyard, Nantucket, and Block Island
A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
in the indicated locations. For a depiction of areas at risk,
please see the National Weather Service Storm Surge Watch/Warning
Graphic at hurricanes.gov. This is a life-threatening situation.
Persons located within these areas should take all necessary
actions to protect life and property from rising water and the
potential for other dangerous conditions. Promptly follow
evacuation and other instructions from local officials.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case
within the next 24 hours.
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
DISCUSSION AND OUTLOOK
----------------------
At 800 AM EDT (1200 UTC), the center of Tropical Storm Isaias was
located over southeastern Virginia near latitude 37.7 North,
longitude 76.8 West. Isaias is moving toward the north-northeast
near 33 mph (54 km/h), and this general motion accompanied by some
additional increase in forward speed is expected through today. On
the forecast track, the center of Isaias will continue to move
near or along the coast of the mid-Atlantic states today, and move
across the northeastern United States into southern Canada tonight.
Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts. Only gradual weakening is anticipated while Isaias moves
north-northeastward near the mid-Atlantic coast today. A faster
rate of weakening is expected to begin tonight, and the system is
forecast to become post-tropical tonight or early Wednesday.
Tropical-storm-force winds extend outward up to 140 miles (220 km)
from the center. Sustained winds of 63 mph (101 km/h) and a gust to
77 mph (124 km/h) were recently reported at Third Island, Virginia,
at the mouth of the Chesapeake Bay.
The estimated minimum central pressure based on surface
observations is 993 mb (29.33 inches).
HAZARDS AFFECTING LAND
----------------------
Key messages for Isaias can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC,
and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml.
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...
Cape Lookout to Ocracoke Inlet NC, including the Neuse River...1-2
ft
Ocracoke Inlet to the North Carolina/Virginia border including
Pamlico Sound, Albemarle Sound, and Pamlico River...3-5 ft
North of the North Carolina/Virginia border to Martha's Vineyard
including the Chesapeake Bay, the Tidal Potomac River, Delaware Bay,
Long Island Sound, Block Island Sound, Narragansett Bay, Buzzards
Bay, and Vineyard Sound...1-3 ft
The deepest water will occur along the immediate coast in areas of
onshore winds, where the surge will be accompanied by large waves.
Surge-related flooding depends on the relative timing of the surge
and the tidal cycle, and can vary greatly over short distances.
For information specific to your area, please see products issued
by your local National Weather Service forecast office.
WIND: Widespread tropical-storm conditions are expected in the
tropical storm warning area from North Carolina through the
mid-Atlantic states, including portions of the Chesapeake Bay region
today, with wind gusts to hurricane force possible. These winds
could cause tree damage and power outages.
Tropical storm conditions are expected to reach southern New
England this afternoon and northern New England tonight.
Gale-force winds are expected to spread into southeastern Quebec
tonight and Wednesday. See products issued by Environment
Canada for more information.
RAINFALL: The following rainfall accumulations are expected along
and near the track of Isaias:
Central and eastern North Carolina into the Mid-Atlantic: 3 to 6
inches, isolated maximum totals 8 inches.
Eastern New York into Vermont: 2 to 4 inches, isolated maximum
totals 6 inches.
Western Connecticut, western Massachusetts, New Hampshire and
western Maine: 1 to 3 inches.
Heavy rainfall along the East Coast, near the path of Isaias, will
result in flash and urban flooding, some of which may be significant
in North Carolina through the Mid-Atlantic and Northeast through
tonight. Potentially life-threatening urban flooding is possible in
D.C., Baltimore, and elsewhere along and just west of the I-95
corridor today. Widespread minor to moderate river flooding is
likely across portions of the Carolinas and the Mid-Atlantic.
Quick-responding rivers in the Northeast will also be susceptible
to minor river flooding.
TORNADOES: Tornadoes are most likely through midday from southeast
Virginia to New Jersey. Tornadoes will remain possible this
afternoon and evening from southeast New York across New England.
SURF: Swells generated by Isaias will spread northward along the
Mid-Atlantic and Northeast coasts of the United States today. These
swells are likely to cause life-threatening surf and rip current
conditions. Please consult products from your local weather office.
NEXT ADVISORY
-------------
Next complete advisory at 1100 AM EDT.
Hourly Tropical Cyclone Update statements will begin at 900 AM EDT.
$$
Forecaster Stewart
000
WTNT44 KNHC 040851
TCDAT4
Tropical Storm Isaias Discussion Number 29
NWS National Hurricane Center Miami FL AL092020
500 AM EDT Tue Aug 04 2020
Isaias made landfall near Ocean Isle Beach, North Carolina, a few
minutes after the previous advisory package was issued. Since
that time, the center of Isaias has been moving quickly
north-northeastward across eastern North Carolina. Now that the
inner core of Isaias has moved inland, the peak surface winds have
decreased despite Doppler radar data still showing an area of
75-85 kt winds aloft. The latest surface observations indicated
that strong winds are occuring over the North Carolina Sounds and
Outer Banks. Based on a blend of the available data, the initial
wind speed is set at 60 kt for this advisory.
As the tropical storm moves northward near the Mid-Atlantic coast,
interaction with a strong jet stream is likely to result in a
slower-than-typical weakening rate. The global model guidance
indicates that Isaias is likely to produce widespread
tropical-storm conditions, with hurricane-force wind gusts possible
along the mid-Atlantic coast through this afternoon. As a result,
the gust factor at 12 h has been increased above the standard 20
percent in the Forecast/Advisory (TCMAT4). Isaias is forecast to
weaken more quickly tonight as it moves into eastern Canada and
becomes post-tropical. The post-tropical cyclone is forecast to be
absorbed by a larger extratropical low in 2-3 days, if not sooner.
Isaias is moving north-northeastward or 020/24 kt. The cyclone is
forecast to continue accelerating north-northeastward today as it
is embedded in strong south-southwesterly flow ahead of a deep-layer
trough over the Great Lakes region. After 24 h, the post-tropical
cyclone is expected to decelerate before it is absorbed by the
extratropical low. The updated NHC track forecast is near the
center of the tightly clustered guidance envelope.
In addition to the storm surge and wind threats, Isaias is expected
to produce heavy rainfall along and just west of the I-95 corridor
today, and the Weather Prediction Center has placed a portion of
this area in a high risk for life-threatening flash flooding.
There is also a risk of tornadoes from southeast Virginia to New
Jersey through midday. The risk of tornadoes will spread northward
into southeastern New York this afternoon and across New England by
tonight.
Key Messages:
1. There is the danger of life-threatening storm surge inundation
along portions of the immediate coastline and adjacent waterways of
the North Carolina coast, including portions of Pamlico and
Albemarle Sounds. Residents in these areas should follow advice
given by local emergency officials.
2. Isaias is expected to bring widespread sustained tropical storm
force winds and wind gusts to hurricane force to the mid-Atlantic
coast, including portions of the Chesapeake Bay region, through
this afternoon, which could cause tree damage and power outages.
Tropical storm conditions are expected to spread across New England
tonight.
3. Heavy rainfall along the East Coast, near the path of Isaias,
will result in flash flooding, some of which may be significant in
North Carolina through the Mid-Atlantic and Northeast through
tonight. Potentially life-threatening urban flooding is possible in
D.C., Baltimore, and elsewhere along and just west of the I-95
corridor today. Widespread minor to moderate river flooding is
likely across portions of the Carolinas and the Mid-Atlantic.
Quick-responding rivers in Northeast will also be susceptible to
minor river flooding.
4. Tornadoes have already occurred over portions of northeastern
North Carolina and southeastern Virginia overnight. The threat of
tornadoes will spread northward along the mid-Atlantic coast today
and then across New England by tonight.
FORECAST POSITIONS AND MAX WINDS
INIT 04/0900Z 36.3N 77.5W 60 KT 70 MPH...INLAND
12H 04/1800Z 40.3N 75.0W 55 KT 65 MPH...INLAND
24H 05/0600Z 45.8N 72.1W 35 KT 40 MPH...POST-TROP/INLAND
36H 05/1800Z 50.3N 70.3W 30 KT 35 MPH...POST-TROP/EXTRATROP
48H 06/0600Z 53.2N 69.5W 20 KT 25 MPH...POST-TROP/EXTRATROP
60H 06/1800Z...DISSIPATED
$$
Forecaster Brown/Berg
000
WTNT24 KNHC 040849
TCMAT4
TROPICAL STORM ISAIAS FORECAST/ADVISORY NUMBER 29
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020
0900 UTC TUE AUG 04 2020
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
ALL WARNINGS HAVE BEEN DISCONTINUED FOR THE COAST OF NORTH CAROLINA
SOUTH OF SURF CITY.
THE STORM SURGE WATCH SOUTH OF SURF CITY HAS ALSO BEEN
DISCONTINUED.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A STORM SURGE WARNING IS IN EFFECT FOR...
* PAMLICO AND ALBEMARLE SOUNDS...INCLUDING THE NEUSE AND PAMLICO
RIVERS
* OCRACOKE INLET NORTH CAROLINA TO THE NORTH CAROLINA/VIRGINIA
BORDER
A STORM SURGE WATCH IS IN EFFECT FOR...
* SURF CITY TO OCRACOKE INLET NORTH CAROLINA
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* NORTH OF SURF CITY NORTH CAROLINA TO EASTPORT MAINE
* PAMLICO AND ALBEMARLE SOUNDS
* CHESAPEAKE BAY
* TIDAL POTOMAC RIVER
* DELAWARE BAY
* LONG ISLAND AND LONG ISLAND SOUND
* MARTHA'S VINEYARD...NANTUCKET...AND BLOCK ISLAND
A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING
INUNDATION...FROM RISING WATER MOVING INLAND FROM THE
COASTLINE...IN THE INDICATED LOCATIONS. FOR A DEPICTION OF AREAS AT
RISK...PLEASE SEE THE NATIONAL WEATHER SERVICE STORM SURGE
WATCH/WARNING GRAPHIC AT HURRICANES.GOV. THIS IS A
LIFE-THREATENING SITUATION. PERSONS LOCATED WITHIN THESE AREAS
SHOULD TAKE ALL NECESSARY ACTIONS TO PROTECT LIFE AND PROPERTY FROM
RISING WATER AND THE POTENTIAL FOR OTHER DANGEROUS CONDITIONS.
PROMPTLY FOLLOW EVACUATION AND OTHER INSTRUCTIONS FROM LOCAL
OFFICIALS.
A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY OF LIFE-
THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE
COASTLINE.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...GENERALLY WITHIN 36
HOURS.
TROPICAL STORM CENTER LOCATED NEAR 36.3N 77.5W AT 04/0900Z
POSITION ACCURATE WITHIN 25 NM
PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 24 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB
MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT.
50 KT....... 40NE 50SE 0SW 0NW.
34 KT.......110NE 120SE 40SW 40NW.
12 FT SEAS..180NE 180SE 0SW 0NW.
WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL
MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT.
REPEAT...CENTER LOCATED NEAR 36.3N 77.5W AT 04/0900Z
AT 04/0600Z CENTER WAS LOCATED NEAR 35.0N 78.1W
FORECAST VALID 04/1800Z 40.3N 75.0W...INLAND
MAX WIND 55 KT...GUSTS 70 KT.
50 KT... 40NE 70SE 20SW 0NW.
34 KT...110NE 140SE 40SW 40NW.
FORECAST VALID 05/0600Z 45.8N 72.1W...POST-TROP/INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 180SE 0SW 0NW.
FORECAST VALID 05/1800Z 50.3N 70.3W...POST-TROP/EXTRATROP
MAX WIND 30 KT...GUSTS 40 KT.
FORECAST VALID 06/0600Z 53.2N 69.5W...POST-TROP/EXTRATROP
MAX WIND 20 KT...GUSTS 30 KT.
FORECAST VALID 06/1800Z...DISSIPATED
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 36.3N 77.5W
INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 04/1200Z
NEXT ADVISORY AT 04/1500Z
$$
FORECASTER BROWN
000
FONT14 KNHC 040851
PWSAT4
TROPICAL STORM ISAIAS WIND SPEED PROBABILITIES NUMBER 29
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020
0900 UTC TUE AUG 04 2020
AT 0900Z THE CENTER OF TROPICAL STORM ISAIAS WAS LOCATED NEAR
LATITUDE 36.3 NORTH...LONGITUDE 77.5 WEST WITH MAXIMUM SUSTAINED
WINDS NEAR 60 KTS...70 MPH...110 KM/H.
Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH)
ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME
EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME
CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME
WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS
CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST
...34 KT (39 MPH... 63 KM/H)...
...50 KT (58 MPH... 93 KM/H)...
...64 KT (74 MPH...119 KM/H)...
FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS
PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE
OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING
AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY)
(CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN
06Z TUE AND THE FORECAST HOUR (CUMULATIVE PROBABILITY)
PROBABILITIES ARE GIVEN IN PERCENT
X INDICATES PROBABILITIES LESS THAN 1 PERCENT
PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN
THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT.
PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY
64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT.
- - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - -
FROM FROM FROM FROM FROM FROM FROM
TIME 06Z TUE 18Z TUE 06Z WED 18Z WED 06Z THU 06Z FRI 06Z SAT
PERIODS TO TO TO TO TO TO TO
18Z TUE 06Z WED 18Z WED 06Z THU 06Z FRI 06Z SAT 06Z SUN
FORECAST HOUR (12) (24) (36) (48) (72) (96) (120)
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
LOCATION KT
YARMOUTH NS 34 X 3( 3) X( 3) X( 3) X( 3) X( 3) X( 3)
ST JOHN NB 34 X 3( 3) X( 3) X( 3) X( 3) X( 3) X( 3)
EASTPORT ME 34 X 5( 5) 1( 6) X( 6) X( 6) X( 6) X( 6)
BAR HARBOR ME 34 X 9( 9) 1(10) X(10) X(10) X(10) X(10)
AUGUSTA ME 34 1 17(18) X(18) X(18) X(18) X(18) X(18)
PORTLAND ME 34 2 26(28) X(28) X(28) X(28) X(28) X(28)
CONCORD NH 34 3 54(57) X(57) X(57) X(57) X(57) X(57)
CONCORD NH 50 X 6( 6) X( 6) X( 6) X( 6) X( 6) X( 6)
PORTSMOUTH NH 34 2 32(34) X(34) X(34) X(34) X(34) X(34)
WORCESTER MA 34 8 54(62) X(62) X(62) X(62) X(62) X(62)
WORCESTER MA 50 X 5( 5) X( 5) X( 5) X( 5) X( 5) X( 5)
SPRINGFIELD MA 34 16 65(81) X(81) X(81) X(81) X(81) X(81)
SPRINGFIELD MA 50 X 13(13) X(13) X(13) X(13) X(13) X(13)
BOSTON MA 34 4 33(37) X(37) X(37) X(37) X(37) X(37)
HYANNIS MA 34 4 13(17) X(17) X(17) X(17) X(17) X(17)
NANTUCKET MA 34 5 9(14) X(14) X(14) X(14) X(14) X(14)
PROVIDENCE RI 34 10 34(44) X(44) X(44) X(44) X(44) X(44)
BRIDGEPORT CT 34 72 21(93) X(93) X(93) X(93) X(93) X(93)
BRIDGEPORT CT 50 6 20(26) X(26) X(26) X(26) X(26) X(26)
NEW HAVEN CT 34 55 34(89) X(89) X(89) X(89) X(89) X(89)
NEW HAVEN CT 50 3 16(19) X(19) X(19) X(19) X(19) X(19)
HARTFORD CT 34 31 53(84) X(84) X(84) X(84) X(84) X(84)
HARTFORD CT 50 1 14(15) X(15) X(15) X(15) X(15) X(15)
NEW LONDON CT 34 24 42(66) X(66) X(66) X(66) X(66) X(66)
NEW LONDON CT 50 X 5( 5) X( 5) X( 5) X( 5) X( 5) X( 5)
ALBANY NY 34 10 67(77) X(77) X(77) X(77) X(77) X(77)
ALBANY NY 50 X 10(10) X(10) X(10) X(10) X(10) X(10)
ALBANY NY 64 X 1( 1) X( 1) X( 1) X( 1) X( 1) X( 1)
POUGHKEEPSIE 34 57 36(93) X(93) X(93) X(93) X(93) X(93)
POUGHKEEPSIE 50 5 16(21) X(21) X(21) X(21) X(21) X(21)
POUGHKEEPSIE 64 X 2( 2) X( 2) X( 2) X( 2) X( 2) X( 2)
MONTAUK POINT 34 25 31(56) X(56) X(56) X(56) X(56) X(56)
MONTAUK POINT 50 X 3( 3) X( 3) X( 3) X( 3) X( 3) X( 3)
ISLIP NY 34 81 10(91) X(91) X(91) X(91) X(91) X(91)
ISLIP NY 50 10 15(25) X(25) X(25) X(25) X(25) X(25)
NYC JFK AIRPRT 34 95 2(97) X(97) X(97) X(97) X(97) X(97)
NYC JFK AIRPRT 50 26 14(40) X(40) X(40) X(40) X(40) X(40)
NYC JFK AIRPRT 64 1 1( 2) X( 2) X( 2) X( 2) X( 2) X( 2)
NYC CNTRL PARK 34 94 3(97) X(97) X(97) X(97) X(97) X(97)
NYC CNTRL PARK 50 28 10(38) X(38) X(38) X(38) X(38) X(38)
NYC CNTRL PARK 64 1 2( 3) X( 3) X( 3) X( 3) X( 3) X( 3)
NEWARK NJ 34 95 3(98) X(98) X(98) X(98) X(98) X(98)
NEWARK NJ 50 31 6(37) X(37) X(37) X(37) X(37) X(37)
NEWARK NJ 64 1 2( 3) X( 3) X( 3) X( 3) X( 3) X( 3)
TRENTON NJ 34 97 X(97) X(97) X(97) X(97) X(97) X(97)
TRENTON NJ 50 35 1(36) X(36) X(36) X(36) X(36) X(36)
TRENTON NJ 64 4 X( 4) X( 4) X( 4) X( 4) X( 4) X( 4)
NWS EARLE NJ 34 98 X(98) X(98) X(98) X(98) X(98) X(98)
NWS EARLE NJ 50 38 7(45) X(45) X(45) X(45) X(45) X(45)
NWS EARLE NJ 64 2 X( 2) X( 2) X( 2) X( 2) X( 2) X( 2)
ALLENTOWN PA 34 83 X(83) X(83) X(83) X(83) X(83) X(83)
ALLENTOWN PA 50 17 X(17) X(17) X(17) X(17) X(17) X(17)
ALLENTOWN PA 64 1 1( 2) X( 2) X( 2) X( 2) X( 2) X( 2)
PHILADELPHIA 34 98 X(98) X(98) X(98) X(98) X(98) X(98)
PHILADELPHIA 50 36 X(36) X(36) X(36) X(36) X(36) X(36)
PHILADELPHIA 64 4 X( 4) X( 4) X( 4) X( 4) X( 4) X( 4)
ATLANTIC CITY 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
ATLANTIC CITY 50 53 X(53) X(53) X(53) X(53) X(53) X(53)
ATLANTIC CITY 64 3 X( 3) X( 3) X( 3) X( 3) X( 3) X( 3)
BALTIMORE MD 34 60 X(60) X(60) X(60) X(60) X(60) X(60)
BALTIMORE MD 50 11 X(11) X(11) X(11) X(11) X(11) X(11)
DOVER DE 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
DOVER DE 50 47 X(47) X(47) X(47) X(47) X(47) X(47)
DOVER DE 64 4 X( 4) X( 4) X( 4) X( 4) X( 4) X( 4)
ANNAPOLIS MD 34 84 X(84) X(84) X(84) X(84) X(84) X(84)
ANNAPOLIS MD 50 13 X(13) X(13) X(13) X(13) X(13) X(13)
WASHINGTON DC 34 43 X(43) X(43) X(43) X(43) X(43) X(43)
WASHINGTON DC 50 6 X( 6) X( 6) X( 6) X( 6) X( 6) X( 6)
CAPE HENLOPEN 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
CAPE HENLOPEN 50 66 X(66) X(66) X(66) X(66) X(66) X(66)
CAPE HENLOPEN 64 2 X( 2) X( 2) X( 2) X( 2) X( 2) X( 2)
OCEAN CITY MD 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
OCEAN CITY MD 50 65 X(65) X(65) X(65) X(65) X(65) X(65)
OCEAN CITY MD 64 1 X( 1) X( 1) X( 1) X( 1) X( 1) X( 1)
PAX RIVER NAS 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
PAX RIVER NAS 50 20 X(20) X(20) X(20) X(20) X(20) X(20)
PAX RIVER NAS 64 1 X( 1) X( 1) X( 1) X( 1) X( 1) X( 1)
WALLOPS CDA 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
WALLOPS CDA 50 73 X(73) X(73) X(73) X(73) X(73) X(73)
WALLOPS CDA 64 1 X( 1) X( 1) X( 1) X( 1) X( 1) X( 1)
RICHMOND VA 34 95 X(95) X(95) X(95) X(95) X(95) X(95)
RICHMOND VA 50 8 X( 8) X( 8) X( 8) X( 8) X( 8) X( 8)
NORFOLK NAS 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
NORFOLK NAS 50 92 X(92) X(92) X(92) X(92) X(92) X(92)
NORFOLK NAS 64 1 X( 1) X( 1) X( 1) X( 1) X( 1) X( 1)
NORFOLK VA 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
NORFOLK VA 50 91 X(91) X(91) X(91) X(91) X(91) X(91)
NORFOLK VA 64 1 X( 1) X( 1) X( 1) X( 1) X( 1) X( 1)
OCEANA NAS VA 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
OCEANA NAS VA 50 74 X(74) X(74) X(74) X(74) X(74) X(74)
ELIZABETH CTY 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
ELIZABETH CTY 50 40 X(40) X(40) X(40) X(40) X(40) X(40)
ROCKY MT NC 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
CAPE HATTERAS 34 61 X(61) X(61) X(61) X(61) X(61) X(61)
CHERRY PT NC 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
NEW RIVER NC 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
NEW RIVER NC 50 99 X(99) X(99) X(99) X(99) X(99) X(99)
MOREHEAD CITY 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
SURF CITY NC 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
WILMINGTON NC 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
BALD HEAD ISL 34 99 X(99) X(99) X(99) X(99) X(99) X(99)
$$
FORECASTER BROWN
000 WTNT84 KNHC 041206 TCVAT4 ISAIAS WATCH/WARNING INTERMEDIATE ADVISORY NUMBER 29A NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020 806 AM EDT TUE AUG 4 2020 .TROPICAL STORM ISAIAS CAUTION...THIS PRODUCT ONLY APPROXIMATELY CONVEYS THE EXTENT OF TROPICAL CYCLONE WIND AND SURGE WATCHES AND WARNINGS. PLEASE SEE THE LATEST PUBLIC ADVISORY FROM THE NATIONAL HURRICANE CENTER FOR THE PRECISE LATERAL EXTENT OF WIND WATCHES AND WARNINGS ALONG THE COAST...AS WELL AS THE APPROXIMATE LATERAL EXTENT OF SURGE WATCHES AND WARNINGS. THE PRECISE EXTENT OF SURGE WATCHES AND WARNINGS CAN BE FOUND IN THE NWS NATIONAL DIGITAL FORECAST DATABASE HAZARD GRIDS. NCZ015>017-030>032-047-080-081-094-102-203>205-042015- /O.CON.KNHC.SS.W.1009.000000T0000Z-000000T0000Z/ /O.CON.KNHC.TR.W.1009.000000T0000Z-000000T0000Z/ 806 AM EDT TUE AUG 4 2020 $$ NCZ194-196-042015- /O.CAN.KNHC.SS.W.1009.000000T0000Z-000000T0000Z/ /O.CON.KNHC.TR.W.1009.000000T0000Z-000000T0000Z/ 806 AM EDT TUE AUG 4 2020 $$ NCZ195-199-042015- /O.CAN.KNHC.SS.A.1009.000000T0000Z-000000T0000Z/ /O.CON.KNHC.TR.W.1009.000000T0000Z-000000T0000Z/ 806 AM EDT TUE AUG 4 2020 $$ CTZ001>013-DCZ001-DEZ001>004-MAZ001>026-MDZ005-006-008-011>025- 503>508-MEZ007-008-012-013-018>020-023>030-033-NCZ012>014-029- 044>046-079-090>092-193-198-NHZ001>015-NJZ001-002-004-006>010- 012>027-103>108-NYZ067>075-078>081-176>179-PAZ070-071-101>106- RIZ001>008-VAZ052>057-064-075>090-092-093-095>100-511>525-042015- /O.CON.KNHC.TR.W.1009.000000T0000Z-000000T0000Z/ 806 AM EDT TUE AUG 4 2020 $$ NCZ010-011-026>028-041>043-077-078-086-088-089-041315- /O.CAN.KNHC.TR.W.1009.000000T0000Z-000000T0000Z/ 806 AM EDT TUE AUG 4 2020 $$ MEZ001>006-009>011-014>017-021-022-031-032-042015- /O.CON.KNHC.TR.A.1009.000000T0000Z-000000T0000Z/ 806 AM EDT TUE AUG 4 2020 $$ ATTN...WFO...AKQ...ALY...BOX...CAR...GYX...LWX...MHX...OKX... PHI...RAH...
000
FKNT24 KNHC 040851
TCANT4
TROPICAL STORM ISAIAS ICAO ADVISORY NUMBER 29
NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020
0900 UTC TUE AUG 04 2020
TC ADVISORY
DTG: 20200804/0900Z
TCAC: KNHC
TC: ISAIAS
ADVISORY NR: 2020/029
OBS PSN: 04/0900Z N3618 W07730
MOV: NNE 24KT
C: 0993HPA
MAX WIND: 060KT
FCST PSN +6 HR: 04/1500Z N3857 W07549
FCST MAX WIND +6 HR: 055KT
FCST PSN +12 HR: 04/2100Z N4140 W07416
FCST MAX WIND +12 HR: 050KT
FCST PSN +18 HR: 05/0300Z N4425 W07249
FCST MAX WIND +18 HR: 040KT
FCST PSN +24 HR: 05/0900Z N4655 W07138
FCST MAX WIND +24 HR: 035KT
RMK: THE FORECAST POSITION INFORMATION IN
THIS PRODUCT IS INTERPOLATED FROM
OFFICIAL FORECAST DATA VALID AT 0000...
0600...1200...AND 1800Z.
NXT MSG: 20200804/1500Z
??
000
WTCA44 TJSJ 041237
TCPSP4
BOLETIN
Tormenta Tropical Isaias Advertencia Numero 29A
SNM Centro Nacional de Huracanes Miami FL AL092020
Traducido por el Servicio Nacional de Meteorologia San Juan PR
800 AM EDT martes 4 de agosto de 2020
...CENTRO DE ISAIAS MOVIENDOSE A TRAVES DEL SURESTE DE VIRGINIA...
...VIENTOS FUERTES...LLUVIA FUERTE....Y PELIGRO DE TORNADOS SE
EXTENDERA HACIA EL NORTE A LO LARGO DE LA COSTA DEL MEDIO ATLANTICO
EN LA MANANA...
RESUMEN DE LAS 800 AM EDT...1200 UTC...INFORMACION
---------------------------------------------------
LOCALIZACION...37.7 NORTE 76.8 OESTE
ALREDEDOR DE 15 MI...20 KM AL SSE DE TAPPAHANNOCK VIRGINIA
VIENTOS MAXIMOS SOSTENIDOS...70 MPH...110 KM/H
MOVIMIENTO ACTUAL...NNE 25 GRADOS A 33 MPH...54 KM/H
PRESION MINIMA CENTRAL...993 MB...29.33 PULGADAS
VIGILANCIAS Y AVISOS
--------------------
CAMBIOS CON ESTA ADVERTENCIA:
Se ha descontinuado el Aviso de Marejada Ciclonica para Neuse River
Carolina del Norte.
Se ha descontinuado la Vigilancia de Marejada Ciclonica.
RESUMEN DE VIGILANCIAS Y AVISOS EN EFECTO:
Un Aviso de Marejada Ciclonica esta en efecto para...
* Pamlico y Albemarle Sounds
* Ocracoke Inlet, Carolina del Norte hasta el norte de la frontera
de Carolina del Norte y Virginia
Un Aviso de Tormenta Tropical esta en efecto...
* Norte de Surf City, Carolina del Norte hasta Eastport, Maine
* Pamlico y Albemarle Sounds
* Chesapeake Bay
* Tidal Potomac River
* Delaware Bay
* Long Island y Long Island Sound
* Martha's Vineyard, Nantucket y Block Island
Un Aviso de Marejada Ciclonica significa que existe el peligro de
inundaciones que amenazan la vida debido al aumento del agua
moviendose tierra adentro desde la costa, en las areas indicadas
durante las proximas 36 horas. Para una representacion de las areas
bajo riesgo, favor de referirse al Grafico de Vigilancia/Aviso de
Marejada Ciclonica del Servicio Nacional de Meteorologia en
hurricanes.gov. Esta es una situacion que amenaza la vida. Las
personas ubicadas dentro de estas areas deben tomar todas las
medidas necesarias para proteger la vida y la propiedad debido al
aumento del agua y la posibilidad de otras condiciones peligrosas.
Sigan inmediatemante desalojos y otras instrucciones de los
funcionarios locales.
Un Aviso de Tormenta Tropical significa que se esperan condiciones
de tormenta tropical en algun lugar dentro del area bajo aviso,
en este caso en las proximas 24 horas.
Para informacion especifica para su area, incluyendo posibles avisos
y vigilancias sobre tierra, favor de monitorear los productos
emitidos por el Servicio Nacional de Meteorologia local.
DISCUSION Y PERSPECTIVA
-----------------------
A las 800 AM EDT (1200 UTC), el centro de la Tormenta Tropical
Isaias fue localizada sobre el sureste de Virginia cerca de la
latitud 37.7 norte, longitud 76.8 oeste. Isaias se mueve hacia el
norte-noreste a cerca de 33 mph (54 km/h), y se espera que este
movimiento general continue acompanado por un aumento gradual en la
velocidad de traslacion hoy. En la trayectoria pronosticada, el
centro de Isaias continuara moviendose cerca o a lo largo de la
costa de los estados del medio Atlantico hoy, y se movera a traves
de del noreste de los estados Unidos hasta el sur de Canada esta
noche.
Los vientos maximos sostenidos estan cerca de 70 mph (110 km/h) con
rafagas mas fuertes. Solo se anticipa un debilitamiento gradual
mientras Isaias se mueva hacia el norte noreste cerca de la costa
del medio Atlantico hoy. Se espera que una tasa de debilitamiento
mas rapida comience esta noche y se pronostica que el sistema se
convierta post-tropical esta noche o temprano el miercoles.
Los vientos con fuerza de tormenta tropical se extienden hasta 140
millas (220 km) del centro. Vientos sostenidos de 63 mph (101 km/h)
y una rafaga de 77 mph (124 km/h) fue recientemente reportada en
Third Island, Virginia, en la boca de Chesapeake Bay.
La presion minima central estimada basado en observaciones en la
superficie es de 993 mb (29.33 pulgadas).
PELIGROS AFECTANDO TIERRA
-------------------------
Mensajes claves para Isaias pueden ser encontrados en la Discusion
de Ciclon Tropical bajo AWIPS con el encabezado MIATCDAT4 y el
encabezado WMO WTNT44 KNHC y en la web
www.hurricanes.gov/text/MIATCDAT4.shtml.
MAREJADA CICLONICA: La combinacion de una marejada ciclonica
peligrosa y la marea causara que areas normalmente secas cerca de la
costa se inunden debido al aumento de agua moviendose tierra adentro
desde la costa. El agua pudiera alcanzar las siguientes alturas por
encima del suelo en algun lugar de las areas indicadas si el pico de
la marejada ocurre al momento de la marea alta...
Desde Cape Lookout hata Ocracoke Inlet NC, incluyendo a Neuse
River...1-2 pies
Ocracoke Inlet hasta la frontera entre Carolina del Norte y Virginia
incluyendo Pamlico Sound, Albemarle Sound y Pamlico River...3-5 pies
Norte de la frontera de Carolina del Norte y Virginia hasta Martha's
Vineyard incluyendo Chesapeake Bay, Tidal Potomac River, Delaware
Bay, Long Island Sound, Block Island Sound, Narragansett Bay,
Buzzards Bay y Vineyard Sound...1-3 pies
El aumento mayor de agua ocurrira a lo largo de la costa inmediata
en areas con vientos en direccion hacia la costa, donde la marejada
estara acompanada por grandes olas. Inundaciones asociadas a la
marejada dependeran del momento en que ocurra la marejada y el ciclo
de la marea, y pudiera variar grandemente sobre distancias cortas.
Para informacion especifica de su area, favor de referirse a los
productos emitidos por su oficina local de pronosticos del Servicio
Nacional de Meteorologia.
VIENTO: Se esperan condiciones de tormenta tropical generalizadas
dentro del area bajo aviso de tormenta tropical desde la costa de
Carolina del Norte hasta los estados del medio-Atlantico, incluyendo
sectores de la region de Chesapeake Bay hoy, con posibles rafagas de
vientos con fuerza de huracan. Estos vientos pudieran causar danos a
arboles e interrupciones en el servicio electrico.
Se espera que condiciones de tormenta tropical alcancen el sur de
Nueva Inglaterra esta tarde y el norte de Nueva Inglaterra esta
noche.
Se esperan vientos de galerna extendiendose sobre el sureste de
Quebec esta noche y miercoles. Refierase a productos emitidos por
Environment Canada para mas informacion.
LLUVIA: Se espera las siguientes acumulaciones de lluvia a lo largo
y cerca de la trayectoria de Isaias:
Centro y este de Carolina del Norte y el medio-Atlantico: 3 a 6
pulgadas, con totales maximos aislados de 8 pulgadas.
Este de Nueva York hasta Vermont: 2 a 4 pulgadas, con totales
maximos aislados de 6 pulgadas.
Oeste de Connecticut, oeste de Massachusetts, New Hampshire y oeste
de Maine: 1 a 3 pulgadas
Lluvia fuerte de Isaias a lo largo de la costa este, cerca de la
trayectoria de Isaias, resultara en inundaciones repentinas y
urbanas, algunas pudieran ser significativas en el este de las
Carolinas, el medio-Atlantico y el noreste hasta esta noche.
Inundacioens urbanas potencialmente amenazantes a la vida son
posibles en D.C., Baltimore y en el resto del area a lo largo y
justo al oeste del corredor I-95 hoy. Inundaciones generalizadas
menores a moderadas por rios son posibles a traves de sectores de
las Carolinas y el medio-Atlantico. Rios que responden rapidamente
en el noreste tambien seran susceptibles a inundaciones menores por
rios.
TORNADOS: Tornados son mas probalbes hasta mediodia desde el sureste
de Virginia a Nueva Jersey. Tornados seran posibles esta tarde y
noche desde el sureste de Nueva York a traves de Nueva Inglaterra.
RESACAS: Marejadas generadas por Isaias se extenderan hacia el norte
a lo largo de las costas del medio Atlantico y este de los Estados
Unidos hoy. Es probable que estas marejadas causen condiciones de
oleaje y corrientes marinas que amenacen la vida. Favor de consultar
los productos emitidos por su oficina local de meteorologia.
PROXIMA ADVERTENCIA
-------------------
Proxima advertencia completa a las 1100 AM EDT.
Actualizacion de las declaraciones por hora de Ciclon Tropical
comenzaran a las 900 AM EDT.
$$
Pronosticador Stewart
Traduccion Villanueva-Birriel
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REGIONAL IMAGES
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UPTON, NY
BOSTON, MA
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