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Post-Tropical Cyclone Humberto

UPDATED
1100 PM AST Thu Sep 19 , 2019
LOCATION
525
WINDS
100 MPH
PRESSURE
965 MB
MOVING
NNE OR 30 DEGREES AT 20 MPH...31 KM/H

HUMBERTO BECOMES AN EXTRATROPICAL CYCLONE, THIS IS THE LAST ADVISORY,

KEY MESSAGES
ALERTS
HAZARDS
SUMMARY
DISCUSSION

1. Large swells will continue to affect Bermuda, the northwestern Bahamas, and the east coast of the United States from east-central Florida to the Mid-Atlantic States during the next couple of days. These swells could create life-threatening surf and rip current conditions.


There are no coastal watches or warnings in effect.


SURF: [TOP] Large swells and dangerous surf generated by Humberto will continue along the coast of Bermuda during the next day or two, and these could continue to cause coastal flooding.

Swells will continue to affect the northwestern Bahamas and much of the coast of the United States from east-central Florida to the Mid-Atlantic States during the next couple of days.

These swells could cause life-threatening surf and rip current conditions. Please consult products from your local weather office and the Bermuda Weather Service.


At 1100 PM AST (0300 UTC), the center of Post-Tropical Cyclone Humberto was located near latitude 40.0 North, longitude 58.0 West. The post-tropical cyclone is moving toward the north-northeast near 20 mph (31 km/h). A slower north-northeastward motion is expected tonight and Friday. A turn toward the east-northeast is expected to commence by Friday night.

Maximum sustained winds are near 100 mph (155 km/h) with higher gusts. Gradual weakening is expected during the next couple of days.

Hurricane-force winds extend outward up to 80 miles (130 km) from the center and tropical-storm-force winds extend outward up to 380 miles (610 km).

The estimated minimum central pressure is 965 mb (28.50 inches).


Satellite images show what little deep convection remains has been displaced well to the north of the center of the cyclone, and it can no longer be classified via the Dvorak technique. Moreover, cold air stratocumulus clouds over the western and southern portions of the circulation are indicative of cold air advection that is characteristic of an extratropical cyclone. Therefore, Humberto is now post-tropical and this will be the last advisory issued by the National Hurricane Center on this system.

It is estimated that the cyclone still has hurricane-force winds and based on continuity from previous estimates with a gradual weakening rate, the current intensity is set at 85 kt. Continued gradual weakening is likely, and after 48 hours the system is expected to merge with another extratropical low over the north Atlantic.

The cyclone has turned north-northeastward along the eastern side of a deep layer cyclonic circulation, with a current motion estimate of 030/17 kt. A turn toward the east-northeast is expected in a day or so as the system moves within the mid-latitude westerlies until dissipation.

View storm archives
      Hurricane Humberto Advisory 29
      HUMBERTO EXPECTED TO BECOME A POWERFUL EXTRATROPICAL CYCLONE TONIGHT, LARGE SWELLS CONTINUE TO AFFECT BERMUDA AND MUCH OF THE EAST COAST OF THE U.S,
      Hurricane Humberto Advisory 28
      HUMBERTO EXPECTED TO BECOME A POWERFUL EXTRATROPICAL CYCLONE LATER TODAY, LARGE SWELLS AFFECTING BERMUDA AND MUCH OF THE EAST COAST OF THE U.S,
      Hurricane Humberto Advisory 26
      CENTER OF HUMBERTO MOVING AWAY FROM BERMUDA, TROPICAL-STORM-CONDITIONS EXPECTED TO PERSIST ACROSS BERMUDA INTO THURSDAY MORNING,
      Hurricane Humberto Advisory 25
      HURRICANE CONDITIONS RAKING THE ISLAND OF BERMUDA, HURRICANE-FORCE WINDS EXPECTED TO PERSIST ACROSS BERMUDA INTO EARLY THURSDAY MORNING,
      Hurricane Humberto Advisory 24
      AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT FINDS HUMBERTO STRONGER AS THE MAJOR HURRICANE THREATENS BERMUDA, LARGE HURRICANE-FORCE WIND FIELD CONTINUES TO EXPAND,
      Hurricane Humberto Advisory 21
      HUMBERTO A LITTLE STRONGER AS THE LARGE HURRICANE MOVES CLOSER TO BERMUDA, A HURRICANE WARNING HAS BEEN ISSUED FOR BERMUDA
      Hurricane Humberto Advisory 20
      AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATES THAT HUMBERTO CONTINUES TO GROW LARGER, HURRICANE WATCH ISSUED FOR BERMUDA,
      Hurricane Humberto Advisory 19
      LARGE HUMBERTO FORECAST TO STRENGTHEN LATER TODAY, ANOTHER AIR FORCE RECONNAISSANCE PLANE SCHEDULED TO REACH THE HURRICANE IN A FEW HOURS,
      Hurricane Humberto Advisory 16
      HUMBERTO GETTING BETTER ORGANIZED TO THE WEST OF BERMUDA, LARGE SWELLS AFFECTING MUCH OF THE SOUTHEASTERN UNITED STATES COASTLINE,
      Tropical Storm Humberto Advisory 12
      HUMBERTO STRENGTHENING AND EXPECTED TO BECOME A HURRICANE BY TONIGHT, SWELLS FROM HUMBERTO WILL INCREASE RIP CURRENT THREAT ALONG THE SOUTHEASTERN UNITED STATES COAST,
      Tropical Storm Humberto Advisory 11
      HUMBERTO EXPECTED TO STRENGTHEN OVER THE NEXT COUPLE OF DAYS, SWELLS FROM HUMBERTO TO INCREASE RIP CURRENT THREAT ALONG THE SOUTHEASTERN UNITED STATES COAST,
LOCAL ALERTS
WEATHER
NEWS
TRAFFIC
Sources include nearest National Weather Service office, National Hurricane Center, and the Florida Public Radio Emergency Network (@FloridaStorms).
Sources include nearby emergency management agencies, FEMA, and your local NPR affiliate. 
Sources include the Florida Department of Transportation, Florida Highway Patrol and other nearby traffic information.

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