FLORIDA
STORMS
Tropical Storm Wilfred
LOCATED
830 MI WSW OF THE CABO VERDE ISLANDS
WINDS
40 MPH
PRESSURE
1008 MB
MOVING
WNW AT 18 MPH
From the National Hurricane Center at 1100 PM AST Fri Sep 18 2020
POORLY ORGANIZED WILFRED STILL A STORM
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

None

At 1100 PM AST (0300 UTC), the center of Tropical Storm Wilfred was located near latitude 12.8 North, longitude 36.0 West. Wilfred is moving toward the westnorthwest near 18 mph (30 km/h), and this general motion is expected to continue for the next few days. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Some slight strengthening is possible Saturday before weakening likely begins by Sunday. Tropicalstormforce winds extend outward up to 140 miles (220 km) from the center.

The estimated minimum central pressure is 1008 mb (29.77 inches).

At 1100 PM AST (0300 UTC), the center of Tropical Storm Wilfred was located near latitude 12.8 North, longitude 36.0 West. Wilfred is moving toward the westnorthwest near 18 mph (30 km/h), and this general motion is expected to continue for the next few days. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Some slight strengthening is possible Saturday before weakening likely begins by Sunday. Tropicalstormforce winds extend outward up to 140 miles (220 km) from the center.

The estimated minimum central pressure is 1008 mb (29.77 inches).

Conventional satellite imagery shows that Wilfred's surface circulation has lost quite a bit of definition during the last several hours, and it has been difficult to pinpoint the center. Additionally, deep convection has become less organized and the cloud tops just to the east of the estimated center position have warmed considerably. The initial intensity is generously held at 35 kt for this advisory and is in best agreement with blend of the subjective and objective satellite intensity estimates.

The GFS and ECMWF global model soundings indicate 30-35 kt of northeasterly shear at about 300 mb, and it's apparently undercutting the much lighter, diffluent southeasterly flow above. Statistical-dynamical guidance, however, still show an outside chance of some strengthening Saturday, and the NHC forecast follows suit. Afterward, a combination of Teddy's massive outflow and increasing northwesterly shear produced by an mid- to upper-level trough to the north of the cyclone, should induce slow weakening on Sunday and this trend should continue through the forecast period. The initial motion is estimated to be west-northwestward, or 285/16 kt, and the cyclone is being steered by a low to mid-tropospheric subtropical ridge to the north. A few of the global models are hinting at a slow turn toward the north-northwest prior to dissipation as the steering pattern becomes very meridional with developing high amplitude high pressure over the eastern Atlantic, and Hurricane Teddy well to the northwest creating a large weakness over the western Atlantic. For now, the NHC forecast shows some reduction in forward speed at day 3, before dissipation, and lies close to the consensus aids, HCCA and TVCA.

Conventional satellite imagery shows that Wilfred's surface circulation has lost quite a bit of definition during the last several hours, and it has been difficult to pinpoint the center. Additionally, deep convection has become less organized and the cloud tops just to the east of the estimated center position have warmed considerably. The initial intensity is generously held at 35 kt for this advisory and is in best agreement with blend of the subjective and objective satellite intensity estimates.

The GFS and ECMWF global model soundings indicate 30-35 kt of northeasterly shear at about 300 mb, and it's apparently undercutting the much lighter, diffluent southeasterly flow above. Statistical-dynamical guidance, however, still show an outside chance of some strengthening Saturday, and the NHC forecast follows suit. Afterward, a combination of Teddy's massive outflow and increasing northwesterly shear produced by an mid- to upper-level trough to the north of the cyclone, should induce slow weakening on Sunday and this trend should continue through the forecast period. The initial motion is estimated to be west-northwestward, or 285/16 kt, and the cyclone is being steered by a low to mid-tropospheric subtropical ridge to the north. A few of the global models are hinting at a slow turn toward the north-northwest prior to dissipation as the steering pattern becomes very meridional with developing high amplitude high pressure over the eastern Atlantic, and Hurricane Teddy well to the northwest creating a large weakness over the western Atlantic. For now, the NHC forecast shows some reduction in forward speed at day 3, before dissipation, and lies close to the consensus aids, HCCA and TVCA.

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