Skip Navigation Links
NOAA NOAA United States Department of Commerce

Tropical Storm Isaias Forecast Advisory


Home   Public Adv   Fcst Adv   Discussion   Wind Probs   Graphics   Archive  

U.S. Watch/Warning   Local Products   UPDATE  


000
WTNT24 KNHC 041441
TCMAT4

TROPICAL STORM ISAIAS FORECAST/ADVISORY NUMBER  30
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL092020
1500 UTC TUE AUG 04 2020

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED SOUTH OF
DUCK...NORTH CAROLINA...INCLUDING THE PAMLICO AND ALBEMARLE SOUNDS.

THE STORM SURGE WARNING HAS BEEN DISCONTINUED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* NORTH OF DUCK NORTH CAROLINA TO EASTPORT MAINE
* CHESAPEAKE BAY
* TIDAL POTOMAC RIVER
* DELAWARE BAY
* LONG ISLAND AND LONG ISLAND SOUND
* MARTHA'S VINEYARD...NANTUCKET...AND BLOCK ISLAND

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE
WITHIN THE NEXT 12 TO 18 HOURS.

TROPICAL STORM CENTER LOCATED NEAR 39.1N  76.1W AT 04/1500Z
POSITION ACCURATE WITHIN  25 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR  20 DEGREES AT  30 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  993 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  80 KT.
50 KT....... 60NE  60SE   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 39.1N  76.1W AT 04/1500Z
AT 04/1200Z CENTER WAS LOCATED NEAR 37.7N  76.8W

FORECAST VALID 05/0000Z 43.2N  73.8W...INLAND
MAX WIND  50 KT...GUSTS  65 KT.
50 KT... 40NE  70SE  20SW   0NW.
34 KT...120NE 180SE  40SW  40NW.

FORECAST VALID 05/1200Z 48.2N  71.7W...POST-TROP/INLAND
MAX WIND  35 KT...GUSTS  45 KT.
34 KT...  0NE 180SE   0SW   0NW.

FORECAST VALID 06/0000Z 52.0N  71.1W...POST-TROP/EXTRATROP
MAX WIND  30 KT...GUSTS  40 KT.

FORECAST VALID 06/1200Z 53.6N  69.5W...POST-TROP/EXTRATROP
MAX WIND  20 KT...GUSTS  30 KT.

FORECAST VALID 07/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 39.1N  76.1W

INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 04/1800Z

NEXT ADVISORY AT 04/2100Z

$$
FORECASTER STEWART