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STORMS
Hurricane Teddy
LOCATED
610 MI ENE OF THE LESSER ANTILLES
WINDS
120 MPH
PRESSURE
957 MB
MOVING
NW AT 12 MPH
From the National Hurricane Center at 1100 AM AST Thu Sep 17 2020
TEDDY BECOMES A MAJOR HURRICANE
TAP LINKS BELOW TO FOCUS
Alerts
hazards
summary
DISCUSSION

There are no coastal watches or warnings in effect.

There are no coastal watches or warnings in effect.

None. Key messages for Teddy can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC.

None. Key messages for Teddy can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC.

At 1100 AM AST (1500 UTC), the center of Hurricane Teddy was located near latitude 19.3 North, longitude 53.0 West. Teddy is moving toward the northwest near 12 mph (19 km/h) and this motion is expected to continue for the next few days.

Maximum sustained winds are near 120 mph (195 km/h) with higher gusts. Teddy is a category 3 hurricane on the SaffirSimpson Hurricane Wind Scale. Some additional strengthening is possible through tonight. A slow weakening trend is expected to begin over the weekend.

Hurricaneforce winds extend outward up to 35 miles (55 km) from the center and tropicalstormforce winds extend outward up to 255 miles (405 km).

The estimated minimum central pressure is 957 mb (28.26 inches).

At 1100 AM AST (1500 UTC), the center of Hurricane Teddy was located near latitude 19.3 North, longitude 53.0 West. Teddy is moving toward the northwest near 12 mph (19 km/h) and this motion is expected to continue for the next few days.

Maximum sustained winds are near 120 mph (195 km/h) with higher gusts. Teddy is a category 3 hurricane on the SaffirSimpson Hurricane Wind Scale. Some additional strengthening is possible through tonight. A slow weakening trend is expected to begin over the weekend.

Hurricaneforce winds extend outward up to 35 miles (55 km) from the center and tropicalstormforce winds extend outward up to 255 miles (405 km).

The estimated minimum central pressure is 957 mb (28.26 inches).

Since the previous advisory, Teddy's satellite appearance has steadily improved. There is now a ragged warming eye surrounded by a ring of convection with cloud tops colder than -60 degrees C. Very recently the objective satellite intensity estimates from UW-CIMSS have been rapidly increasing. And although a blend of the 1130 and 1200 UTC Dvorak intensity estimates from SAB and TAFB, respectively, averaged out to an intensity of about 95 kt, the improved satellite presentation since that time suggests that the hurricane should have winds of at least 105 kt, which is the initial intensity for this advisory, which could even be a little conservative based on the latest UW-CIMMS ADT and SATCON values of 120 and 111 kt, respectively. There will be NOAA and Air Force Reserve Hurricane Hunter aircraft inside Teddy later today, which should provide much more detail on the structure and intensity of Teddy. The only negative factor for intensification during the next 24 h is about 10 to 15 kt of vertical wind shear. However, Teddy has been able to begin the latest burst of intensification despite that shear. Therefore additional strengthening is anticipated through this evening, and Teddy is forecast to become a category 4 hurricane by tonight. The overall environment does not change significantly for the next copule of days, so other than some fluctuations intensity such as due to potential eyewall replacement cycles, no change in strength is indicated during that time. As Teddy continues moving northwest over the weekend, it is likely to begin to encounter some of the cooler waters upwelled by Hurricane Paulette last week. This could cause the cyclone to slowly weaken. By late this weekend, increasing vertical wind shear should also contribute to weakening. Due to the fast increase in intensity this morning, the latest NHC intensity is a bit higher than all of the guidance for the first 48 h, but the overall intensity trends are closely mirrored by the various multi-model consensus. Beyond 48 h, the NHC forecast closely follows the LGEM guidance. Teddy continues to move northwestward at 10 kt. The track forecast and reasoning both remain straightforward and unchanged for the next 72 h. The latest NHC model guidance is in excellent agreement that a deep-layer ridge situated over the central Atlantic will force Teddy on a northwestward track toward the western Atlantic. There is a little less divergence among the models on days 4 and 5 then on previous cycles, and these differences are due to timing differences in where and how fast the hurricane begins to recurve ahead of an approaching mid-latitude trough and frontal system moving off the coast of the eastern United States in about 3 days. The new NHC track forecast is little changed from the previous one, and is in the middle of the tightly clustered track guidance. On the forecast track, Teddy will make its closest approach to Bermuda on Monday.

Since the previous advisory, Teddy's satellite appearance has steadily improved. There is now a ragged warming eye surrounded by a ring of convection with cloud tops colder than -60 degrees C. Very recently the objective satellite intensity estimates from UW-CIMSS have been rapidly increasing. And although a blend of the 1130 and 1200 UTC Dvorak intensity estimates from SAB and TAFB, respectively, averaged out to an intensity of about 95 kt, the improved satellite presentation since that time suggests that the hurricane should have winds of at least 105 kt, which is the initial intensity for this advisory, which could even be a little conservative based on the latest UW-CIMMS ADT and SATCON values of 120 and 111 kt, respectively. There will be NOAA and Air Force Reserve Hurricane Hunter aircraft inside Teddy later today, which should provide much more detail on the structure and intensity of Teddy. The only negative factor for intensification during the next 24 h is about 10 to 15 kt of vertical wind shear. However, Teddy has been able to begin the latest burst of intensification despite that shear. Therefore additional strengthening is anticipated through this evening, and Teddy is forecast to become a category 4 hurricane by tonight. The overall environment does not change significantly for the next copule of days, so other than some fluctuations intensity such as due to potential eyewall replacement cycles, no change in strength is indicated during that time. As Teddy continues moving northwest over the weekend, it is likely to begin to encounter some of the cooler waters upwelled by Hurricane Paulette last week. This could cause the cyclone to slowly weaken. By late this weekend, increasing vertical wind shear should also contribute to weakening. Due to the fast increase in intensity this morning, the latest NHC intensity is a bit higher than all of the guidance for the first 48 h, but the overall intensity trends are closely mirrored by the various multi-model consensus. Beyond 48 h, the NHC forecast closely follows the LGEM guidance. Teddy continues to move northwestward at 10 kt. The track forecast and reasoning both remain straightforward and unchanged for the next 72 h. The latest NHC model guidance is in excellent agreement that a deep-layer ridge situated over the central Atlantic will force Teddy on a northwestward track toward the western Atlantic. There is a little less divergence among the models on days 4 and 5 then on previous cycles, and these differences are due to timing differences in where and how fast the hurricane begins to recurve ahead of an approaching mid-latitude trough and frontal system moving off the coast of the eastern United States in about 3 days. The new NHC track forecast is little changed from the previous one, and is in the middle of the tightly clustered track guidance. On the forecast track, Teddy will make its closest approach to Bermuda on Monday.

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