FLORIDA
STORMS
Tropical Storm Paulette
LOCATED
565 MI SE OF BERMUDA
WINDS
70 MPH
PRESSURE
987 MB
MOVING
NW AT 15 MPH
From the National Hurricane Center at 1100 AM AST Sat Sep 12 2020
HURRICANE WARNING ISSUED FOR BERMUDA
TAP LINKS BELOW TO FOCUS
key messages
Alerts
hazards
summary
DISCUSSION

1. Paulette is expected to approach Bermuda as a hurricane onSunday and be near the island Sunday night and Monday. A prolonged period of strong winds, storm surge, and heavy rainfall is expected on Bermuda beginning late Sunday evening, and a hurricane warning has been issued for the island. Preparations to protect life and property should be rushed to completion.

2. Swells produced by Paulette are affecting portions of theLeeward Islands, the Greater Antilles, the Bahamas, and Bermuda, and are expected to spread westward to the east coast of the United States during the next day or two. These swells could cause life-threatening surf and rip current conditions.

1. Paulette is expected to approach Bermuda as a hurricane onSunday and be near the island Sunday night and Monday. A prolonged period of strong winds, storm surge, and heavy rainfall is expected on Bermuda beginning late Sunday evening, and a hurricane warning has been issued for the island. Preparations to protect life and property should be rushed to completion.

2. Swells produced by Paulette are affecting portions of theLeeward Islands, the Greater Antilles, the Bahamas, and Bermuda, and are expected to spread westward to the east coast of the United States during the next day or two. These swells could cause life-threatening surf and rip current conditions.

CHANGES WITH THIS ADVISORY:

The Bermuda Weather Service has issued a Hurricane Warning for Bermuda.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for...
- Bermuda

A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropicalstormforce winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion.

For storm information specific to your area, please monitor products issued by your national meteorological service.

CHANGES WITH THIS ADVISORY:

The Bermuda Weather Service has issued a Hurricane Warning for Bermuda.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for...
- Bermuda

A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropicalstormforce winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion.

For storm information specific to your area, please monitor products issued by your national meteorological service.

Key messages for Paulette can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC, and on the web at https://www.hurricanes.gov/text/MIATCDAT2.shtml.

WIND: Hurricane conditions are expected to reach Bermuda by Sunday night or early Monday. Winds are expected to first reach tropical storm strength by late Sunday evening, making outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. STORM SURGE: A dangerous storm surge is expected to produce significant coastal flooding on Bermuda in areas of onshore winds. Near the coast, the surge will be accompanied by large and destructive waves.

RAIN: Paulette may bring periods of heavy rain to Bermuda Sunday through Monday, with rainfall accumulations of 3 to 6 inches likely.

SURF: Swells generated by Paulette are affecting portions of the Leeward Islands, the Greater Antilles, the Bahamas, and Bermuda and will continue to spread westward to the east coast of the United States over the next day or two. These swells are likely to cause lifethreatening surf and rip current conditions. Please consult products from your local weather office.

Key messages for Paulette can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC, and on the web at https://www.hurricanes.gov/text/MIATCDAT2.shtml.

WIND: Hurricane conditions are expected to reach Bermuda by Sunday night or early Monday. Winds are expected to first reach tropical storm strength by late Sunday evening, making outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. STORM SURGE: A dangerous storm surge is expected to produce significant coastal flooding on Bermuda in areas of onshore winds. Near the coast, the surge will be accompanied by large and destructive waves.

RAIN: Paulette may bring periods of heavy rain to Bermuda Sunday through Monday, with rainfall accumulations of 3 to 6 inches likely.

SURF: Swells generated by Paulette are affecting portions of the Leeward Islands, the Greater Antilles, the Bahamas, and Bermuda and will continue to spread westward to the east coast of the United States over the next day or two. These swells are likely to cause lifethreatening surf and rip current conditions. Please consult products from your local weather office.

At 1100 AM AST (1500 UTC), the center of Tropical Storm Paulette was located near latitude 27.5 North, longitude 57.2 West. Paulette is moving toward the northwest near 15 mph (24 km/h). A northwest or westnorthwest motion is expected through late Sunday. A turn toward the north with a decrease in forward speed is forecast on Monday, followed by a northeastward motion Monday night and Tuesday. On the forecast track, the center of Paulette will move near or over Bermuda Monday morning.

Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Strengthening is forecast, and Paulette is expected to become a hurricane later today or tonight. Paulette is expected to be a dangerous hurricane when it is near Bermuda Sunday night and Monday.

Tropicalstormforce winds extend outward up to 205 miles (335 km) from the center.

The estimated minimum central pressure is 987 mb (29.15 inches).

At 1100 AM AST (1500 UTC), the center of Tropical Storm Paulette was located near latitude 27.5 North, longitude 57.2 West. Paulette is moving toward the northwest near 15 mph (24 km/h). A northwest or westnorthwest motion is expected through late Sunday. A turn toward the north with a decrease in forward speed is forecast on Monday, followed by a northeastward motion Monday night and Tuesday. On the forecast track, the center of Paulette will move near or over Bermuda Monday morning.

Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Strengthening is forecast, and Paulette is expected to become a hurricane later today or tonight. Paulette is expected to be a dangerous hurricane when it is near Bermuda Sunday night and Monday.

Tropicalstormforce winds extend outward up to 205 miles (335 km) from the center.

The estimated minimum central pressure is 987 mb (29.15 inches).

Paulette's structure is going through a bit of an evolution as the deep-layer shear backs from southwesterly to southeasterly. Most of the deep convection had waned earlier this morning, but new convection is beginning to develop near the center as the cyclone reconstitutes itself. For now, the initial intensity remains 60 kt. An overnight AMSR microwave pass showed that Paulette has well-defined low-level banding features, and this structure should allow the cyclone to strengthen as vertical shear falls below 10 kt during the next 12-24 hours. Strengthening is anticipated to continue through day 3, and after that time, gradual weakening is possible due to increasing southwesterly shear. The intensity guidance has been fairly stable for the past few forecast cycles, and no significant changes were required to this new NHC intensity forecast, which lies close to the HCCA model and just a bit above the intensity consensus. Paulette is likely to be strengthening while it makes its closest approach to Bermuda in about 48 hours, and the GFS-based SHIPS and HWRF models each suggest that there is a possibility of it becoming a major hurricane in 72 hours.Paulette is moving northwestward (310/13 kt), with a break in the subtropical ridge located due north of the storm. The ridge may strengthen briefly over the next day or so, causing Paulette to move west-northwestward for a short time, but it should resume the northwestward motion by late Sunday. After that time, an approaching longwave trough over the northeastern United States will erode the ridge eastward, causing Paulette to recurve sharply toward the north and then northeast between days 2 and 3. The hurricane is then expected to accelerate east-northeastward toward the north Atlantic on days 4 and 5, embedded within the mid-latitude flow. The track guidance is well clustered and has not shown any significant shifts over the past few forecast cycles. Therefore, the new NHC track forecast is similar to the previous one.

Paulette's structure is going through a bit of an evolution as the deep-layer shear backs from southwesterly to southeasterly. Most of the deep convection had waned earlier this morning, but new convection is beginning to develop near the center as the cyclone reconstitutes itself. For now, the initial intensity remains 60 kt. An overnight AMSR microwave pass showed that Paulette has well-defined low-level banding features, and this structure should allow the cyclone to strengthen as vertical shear falls below 10 kt during the next 12-24 hours. Strengthening is anticipated to continue through day 3, and after that time, gradual weakening is possible due to increasing southwesterly shear. The intensity guidance has been fairly stable for the past few forecast cycles, and no significant changes were required to this new NHC intensity forecast, which lies close to the HCCA model and just a bit above the intensity consensus. Paulette is likely to be strengthening while it makes its closest approach to Bermuda in about 48 hours, and the GFS-based SHIPS and HWRF models each suggest that there is a possibility of it becoming a major hurricane in 72 hours.Paulette is moving northwestward (310/13 kt), with a break in the subtropical ridge located due north of the storm. The ridge may strengthen briefly over the next day or so, causing Paulette to move west-northwestward for a short time, but it should resume the northwestward motion by late Sunday. After that time, an approaching longwave trough over the northeastern United States will erode the ridge eastward, causing Paulette to recurve sharply toward the north and then northeast between days 2 and 3. The hurricane is then expected to accelerate east-northeastward toward the north Atlantic on days 4 and 5, embedded within the mid-latitude flow. The track guidance is well clustered and has not shown any significant shifts over the past few forecast cycles. Therefore, the new NHC track forecast is similar to the previous one.

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