Tropical Storm Edouard Forecast Discussion Number 8

Mon, Jul 6th 2020, 04:45 AM

Issued at 500 AM AST Mon Jul 06 2020

000
WTNT45 KNHC 060845
TCDAT5

Tropical Storm Edouard Discussion Number

8
NWS National Hurricane Center Miami FL

AL052020
500 AM AST Mon Jul 06 2020

Satellite imagery indicates that Edouard is comprised of an exposed
swirl of low- to mid-level clouds with a strong cluster of
convection over the northeastern quadrant. Various subjective and
objective satellite intensity estimates range from 35-45 kt, and the
initial intensity is held at a possibly conservative 35 kt. Due to
the rapid motion, it is possible that the system no longer has a
closed circulation. However, there is not enough evidence of this
to justify stopping advisories at this time.

The initial motion is quickly northeastward or 055/31. Edouard is
embedded in strong southwesterly mid-latitude flow, and a fast
motion toward the northeast should continue until the cyclone
dissipates. The new track forecast is little changed from the
previous forecast, and it lies near the center of the tightly
clustered model guidance.

The cyclone is located in a region of strong southwesterly vertical
wind shear, is heading for colder water, and is approaching a
frontal system. This combination should lead to extratropical
transition between 12-24 h, and it is possible that Edouard could
strengthen a little as transition occurs. After transition, the
extratropical low should persist for another 24 h or so before the
circulation dissipates. The new intensity forecast is unchanged
from the previous forecast.

FORECAST POSITIONS AND MAX WINDS

INIT 06/0900Z 39.0N 53.6W

35 KT 40 MPH
12H 06/1800Z 41.3N 48.3W

40 KT 45 MPH
24H 07/0600Z 44.7N 41.1W

40 KT 45 MPH...POST-TROP/EXTRATROP
36H 07/1800Z 48.0N 33.5W

35 KT 40 MPH...POST-TROP/EXTRATROP
48H 08/0600Z 51.6N 25.0W

30 KT 35 MPH...POST-TROP/EXTRATROP
60H 08/1800Z...DISSIPATED

$$
Forecaster Beven

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