The final Tropical Weather Summary for the 2019 Atlantic hurricane season has been issued. The season's activity was above normal with 18 named storms, 6 hurricanes, and 3 major hurricanes: nhc.noaa.gov/text/MIATWSAT.
Tuesday, December 3, 2019
END OF A BUSY AND DEADLY 2019 HURRICANE SEASON
The final Tropical Weather Summary for the 2019 Atlantic hurricane season has been issued. The season's activity was above normal with 18 named storms, 6 hurricanes, and 3 major hurricanes: nhc.noaa.gov/text/MIATWSAT.
Wednesday, November 27, 2019
Friday, November 22, 2019
SEBASTIEN 0500 PM EST UPDATE
TROPICAL STORM SEBASTIEN
NOV 22, 2019...
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
000 WTNT35 KNHC 222032 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 14 NWS National Hurricane Center Miami FL AL202019 500 PM AST Fri Nov 22 2019 ...MORE OF THE SAME FROM SEBASTIEN OVER THE CENTRAL ATLANTIC... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...26.2N 53.7W ABOUT 815 MI...1315 KM NE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...ENE OR 65 DEGREES AT 16 MPH...26 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Sebastien was located near latitude 26.2 North, longitude 53.7 West. The tropical storm is moving toward the east-northeast near 16 mph (26 km/h). A general east-northeastward to northeastward motion is expected through the weekend. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Gradual weakening is anticipated and Sebastien is forecast to dissipate by early next week. Tropical-storm-force winds extend outward up to 195 miles (315 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Zelinsky
...SEBASTIEN ENCOUNTERING WIND SHEAR AGAIN AND IS NO LONGER FORECAST TO STRENGTHEN...
TROPICAL STORM SEBASTIEN
NOV 22, 2019...0958 AM EST
RALPH'S TROPICAL WEATHER- RTW
SEBASTIEN IS ENCOUNTERING STRONG WIND SHEAR FROM THE SOUTHWEST. THIS IS BLOWING THE THUNDERSTORMS AWAY FROM THE CENTER OF CIRCULATION. SEBASTIEN IS NO LONGER FORECAST TO STRENGTHEN PER INTENSITY MODELS AND SHOULD BE A SHORT LIVED STORM SYSTEM.
RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
000 WTNT35 KNHC 221447 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 13 NWS National Hurricane Center Miami FL AL202019 1100 AM AST Fri Nov 22 2019 ...POORLY ORGANIZED SEBASTIEN HEADING EAST-NORTHEAST OVER THE CENTRAL ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...25.2N 55.3W ABOUT 695 MI...1120 KM NE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...ENE OR 75 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Sebastien was located near latitude 25.2 North, longitude 55.3 West. Sebastien is moving toward the east-northeast near 15 mph (24 km/h). An east-northeastward or northeastward motion at a similar forward speed is expected through the weekend. Maximum sustained winds have decreased to near 50 mph (85 km/h) with higher gusts. Continued gradual weakening is anticipated and Sebastien is forecast to dissipate by early next week. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 1000 mb (29.53 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Zelinsky
Thursday, November 21, 2019
SEBASTIEN 0500 PM EDT UPDATE
TROPICAL STORM SEBASTIEN
NOV 21, 2019...0342 PM EST
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
472 WTNT35 KNHC 212031 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 10 NWS National Hurricane Center Miami FL AL202019 500 PM AST Thu Nov 21 2019 ...SEBASTIEN NOW MOVING NORTHEASTWARD ACROSS THE CENTRAL ATLANTIC... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...23.8N 59.7W ABOUT 445 MI...715 KM NNE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NE OR 50 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Sebastien was located near latitude 23.8 North, longitude 59.7 West. Sebastien is moving toward the northeast near 9 mph (15 km/h), and this motion is expected to continue with an increase in forward speed during the next few days. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Some strengthening is expected during the next 24 hours, and Sebastien could become a hurricane on Friday. A weakening trend is expected to begin by late Friday, and the system is likely to become an extratropical cyclone on Saturday. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 998 mb (29.47 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Beven
...SEBASTIEN A BIT STRONGER...FORECAST TO BECOME A HURRICANE MAYBE A CAT 2...
TROPICAL STORM SEBASTIEN
NOV 21, 2019...1016 AM EST
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
000 WTNT35 KNHC 211448 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 9 NWS National Hurricane Center Miami FL AL202019 1100 AM AST Thu Nov 21 2019 ...SEBASTIEN EXPECTED TO BECOME A HURRICANE BY TONIGHT... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...23.5N 60.5W ABOUT 405 MI...650 KM NNE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Sebastien was located near latitude 23.5 North, longitude 60.5 West. Sebastien is moving toward the north-northeast near 8 mph (13 km/h). A faster northeastward motion is expected during the next few days. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Sebastien is forecast to become a hurricane by tonight, but a weakening trend is expected to begin by late Friday. The system is likely to become an extratropical cyclone by Saturday. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Pasch
Wednesday, November 20, 2019
SEBASTIEN 0500 PM EST UPDATE
TROPICAL STORM SEBASTIEN
NOV 20, 2019...0421 PM EST
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
667 WTNT35 KNHC 202036 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 6 NWS National Hurricane Center Miami FL AL202019 500 PM AST Wed Nov 20 2019 ...SEBASTIEN MAKES ITS NORTHWARD TURN... ...EXPECTED TO BEGIN INTENSIFYING SOON... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...21.7N 61.5W ABOUT 265 MI...425 KM NNE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...N OR 360 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Sebastien was located near latitude 21.7 North, longitude 61.5 West. Sebastien is moving toward the north near 6 mph (9 km/h). A turn to the northeast with an increase in forward speed is expected tonight and Thursday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours. Sebastien is expected to become an extratropical cyclone in a couple of days and be absorbed by a cold front on Friday. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Latto
SEBASTIEN MORNING UPDATE
TROPICAL STORM SEBASTIEN MORNING UPDATE
NOV 20, 2019...1024 AM EST
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
000 WTNT35 KNHC 201444 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 5 NWS National Hurricane Center Miami FL AL202019 1100 AM AST Wed Nov 20 2019 ...SEBASTIEN MAINTAINS INTENSITY... ...EXPECTED TO TURN NORTH SOON... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...21.1N 61.7W ABOUT 220 MI...355 KM NNE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Sebastien was located near latitude 21.1 North, longitude 61.7 West. Sebastien is moving toward the west near 7 mph (11 km/h). A turn to the north is expected later today. A turn to the northeast with an increase in forward speed is expected tonight and Thursday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours. Sebastien is expected to become an extratropical cyclone in a couple of days and be absorbed by a cold front on Friday. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 1002 mb (29.59 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Latto/Mello
Tuesday, November 19, 2019
SEBASTIAN EARLY 0500 PM EDT UPDATE
TROPICAL STORM SEBASTIAN
NOV 19, 2019...0445 PM EDT
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
000 WTNT35 KNHC 192034 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 2 NWS National Hurricane Center Miami FL AL202019 500 PM AST Tue Nov 19 2019 ...SEBASTIEN CONTINUES NORTHWESTWARD... ...EXPECTED TO TURN TO THE NORTHEAST LATE WEDNESDAY... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...20.6N 59.7W ABOUT 275 MI...445 KM NE OF THE NORTHERN LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the center of Tropical Storm Sebastien was located near latitude 20.6 North, longitude 59.7 West. Sebastien is moving toward the northwest near 12 mph (19 km/h). A turn to the north is expected on Wednesday followed by a turn to the northeast with an increase in forward speed Wednesday night. Maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Some strengthening is forecast during the next 48 hours. Sebastien is expected to become an extratropical cyclone in a couple of days and will then be absorbed by a cold front late this week. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. The estimated minimum central pressure is 1006 mb (29.71 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. $$ Forecaster Latto
TROPICAL STORM SEBASTIEN FORMS SEVERAL HUNDRED MILES EAST-NORTHEAST OF THE NORTHERN LEEWARD ISLANDS
TROPICAL STORM SEBASTIEN
NOV 19, 2019...1101 AM EDT
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER PUBLIC ADVISORY
https://www.nhc.noaa.gov/
000 WTNT35 KNHC 191500 TCPAT5 BULLETIN Tropical Storm Sebastien Advisory Number 1 NWS National Hurricane Center Miami FL AL202019 1100 AM AST Tue Nov 19 2019 ...TROPICAL STORM SEBASTIEN FORMS... ...EXPECTED TO REMAIN OVER OPEN WATERS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...20.1N 58.7W ABOUT 275 MI...445 KM NE OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H PRESENT MOVEMENT...NNW OR 330 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Sebastien was located near latitude 20.1 North, longitude 58.7 West. Sebastien is moving toward the north-northwest near 8 mph (13 km/h). A turn to the north is expected on Wednesday followed by a turn to the northeast and an increase in forward speed Wednesday night. Maximum sustained winds are near 45 mph (75 km/h) with higher gusts. Some slight strengthening is possible over the next day or so. Sebastien is expected to become absorbed by a cold front in a couple of days. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Latto
STORM INVEST 90L MORNING UPDATE
STORM INVESTIGATION 90L
NOV 19, 2019...0955 AM EDT
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER TROPICAL OUTLOOK
https://www.nhc.noaa.gov/
000 ABNT20 KNHC 191151 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 700 AM EST Tue Nov 19 2019 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A broad area of low pressure located about 250 miles northeast of the northern Leeward Islands is gradually becoming better organized and the associated shower and thunderstorm activity has been developing closer to the center since yesterday. If this trend continues, then a tropical or subtropical depression or storm could form in the next day or so while the system moves northwestward and then northward over the open Atlantic. The low is forecast to interact with a frontal system by midweek and further development is unlikely after that time. For more information, see High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...high...80 percent. * Formation chance through 5 days...high...80 percent. && High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Latto
Monday, November 18, 2019
STORM INVESTIGATION 90L AFTERNOON UPDATE
STORM INVESTIGATION 90L
NOV 18, 2019...0359 PM EDT
RALPH'S TROPICAL WEATHER- RTW
NATIONAL HURRICANE CENTER TROPICAL OUTLOOK
https://www.nhc.noaa.gov/
000 ABNT20 KNHC 181737 TWOAT Tropical Weather Outlook NWS National Hurricane Center Miami FL 100 PM EST Mon Nov 18 2019 For the North Atlantic...Caribbean Sea and the Gulf of Mexico: A broad area of low pressure located about 250 miles east-northeast of the northern Leeward Islands is producing disorganized showers and thunderstorms and winds of 30 to 35 mph on its northeastern side. Some gradual development of this system is expected, and a tropical or subtropical depression could form during the next couple of days while it moves northwestward and then northward over the open Atlantic. In a couple of days, upper-level winds are expected to become less conducive and the disturbance is forecast to merge with a frontal system after midweek, so additional development is not expected after that time. For more information, see High Seas Forecasts issued by the National Weather Service. * Formation chance through 48 hours...medium...50 percent. * Formation chance through 5 days...medium...50 percent. && High Seas Forecasts issued by the National Weather Service can be found under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Latto
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