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Summary for Post-Tropical Cyclone Dolly (AT4/AL042020)
2020-06-24 16:32:24| National Hurricane Center (Atlantic)
...DOLLY BECOMES A POST-TROPICAL REMNANT LOW... ...THIS IS THE LAST ADVISORY... As of 11:00 AM AST Wed Jun 24 the center of Dolly was located near 42.5, -57.8 with movement NE at 16 mph. The minimum central pressure was 1007 mb with maximum sustained winds of about 35 mph.
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Post-Tropical Cyclone Dolly Public Advisory Number 9
2020-06-24 16:32:24| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Wed Jun 24 2020 000 WTNT34 KNHC 241432 TCPAT4 BULLETIN Post-Tropical Cyclone Dolly Advisory Number 9 NWS National Hurricane Center Miami FL AL042020 1100 AM AST Wed Jun 24 2020 ...DOLLY BECOMES A POST-TROPICAL REMNANT LOW... ...THIS IS THE LAST ADVISORY... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...42.5N 57.8W ABOUT 370 MI...595 KM SW OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NE OR 45 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Post-Tropical Cyclone Dolly was located near latitude 42.5 North, longitude 57.8 West. The post-tropical cyclone is moving toward the northeast near 16 mph (26 km/h) and this general motion is expected to continue through tonight. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Gradual weakening is expected, and Post-Tropical Cyclone Dolly is expected to dissipate by Thursday morning. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Latto
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Post-Tropical Cyclone Dolly Forecast Advisory Number 9
2020-06-24 16:32:24| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED JUN 24 2020 000 WTNT24 KNHC 241432 TCMAT4 POST-TROPICAL CYCLONE DOLLY FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL AL042020 1500 UTC WED JUN 24 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. POST-TROPICAL CYCLONE CENTER LOCATED NEAR 42.5N 57.8W AT 24/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 45 DEGREES AT 14 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 12 FT SEAS.. 0NE 100SE 90SW 0NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 42.5N 57.8W AT 24/1500Z AT 24/1200Z CENTER WAS LOCATED NEAR 42.0N 58.5W FORECAST VALID 25/0000Z 44.1N 55.7W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 25/1200Z 45.9N 51.5W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 26/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 42.5N 57.8W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. $$ FORECASTER LATTO
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Tropical Depression Dolly Graphics
2020-06-24 10:33:12| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Wed, 24 Jun 2020 08:33:12 GMT Wind Speed Probabilities last updated Wed, 24 Jun 2020 08:33:12 GMT
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Tropical Depression Dolly Forecast Discussion Number 8
2020-06-24 10:32:20| National Hurricane Center (Atlantic)
Issued at 500 AM AST Wed Jun 24 2020 000 WTNT44 KNHC 240832 TCDAT4 Tropical Depression Dolly Discussion Number 8 NWS National Hurricane Center Miami FL AL042020 500 AM AST Wed Jun 24 2020 Deep convection associated with Dolly has become limited and it is confined to an area well to the east of the exposed center. This degraded structure is because the cyclone is now over very cool 22 degree C waters. ASCAT data from several hours ago indicated that maximum winds have fallen below tropical storm force, and the initial intensity is lowered to 30 kt based on that data and the latest Dvorak estimate from TAFB. This makes Dolly a tropical depression, and the system is well on its way to becoming a remnant low. Since the depression is headed for even cooler waters, continued weakening is expected and Dolly will likely become a remnant low later today. Dissipation is now expected to occur by 36 hours, but the global models suggest that it could occur even sooner than that. The tropical depression is moving northeastward at 10 kt. A faster northeastward motion on the north side of a subtropical ridge is expected until the system dissipates on Thursday. The NHC track forecast lies near the middle of the tightly clustered model solutions. FORECAST POSITIONS AND MAX WINDS INIT 24/0900Z 41.7N 59.0W 30 KT 35 MPH 12H 24/1800Z 43.1N 57.1W 30 KT 35 MPH...POST-TROP/REMNT LOW 24H 25/0600Z 45.1N 53.8W 25 KT 30 MPH...POST-TROP/REMNT LOW 36H 25/1800Z...DISSIPATED $$ Forecaster Cangialosi
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