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FLORIDA
STORMS
Tropical Depression Rene
LOCATED
1415 MI WNW OF THE CABO VERDE ISLANDS
WINDS
35 MPH
PRESSURE
1006 MB
MOVING
NW AT 13 MPH
From the National Hurricane Center at 1100 AM AST Sat Sep 12 2020
RENE WEAKENS TO A TROPICAL DEPRESSION
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 AM AST (1500 UTC), the center of Tropical Depression Rene was located near latitude 23.2 North, longitude 44.4 West. The depression is moving toward the northwest near 13 mph (20 km/h) and this general motion is forecast to continue through tonight. A slower northwest to northnorthwest motion is expected on Sunday and Monday. A turn to the westsouthwest is expected to occur by Tuesday.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Some slow weakening is possible over the next few days.

The estimated minimum central pressure is 1006 mb (29.71 inches).

At 1100 AM AST (1500 UTC), the center of Tropical Depression Rene was located near latitude 23.2 North, longitude 44.4 West. The depression is moving toward the northwest near 13 mph (20 km/h) and this general motion is forecast to continue through tonight. A slower northwest to northnorthwest motion is expected on Sunday and Monday. A turn to the westsouthwest is expected to occur by Tuesday.

Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Some slow weakening is possible over the next few days.

The estimated minimum central pressure is 1006 mb (29.71 inches).

The deep convection associated with Rene has gradually decreased over the past several hours, with only a few sporadic patches remaining. A recent ASCAT overpass showed peak winds of 28 kt in the northeastern quadrant, while the latest Dvorak intensity estimates from TAFB and SAB suggest the system is 30 kt. Therefore the initial intensity is being lowered to 30 kt. The depression is forecast to battle dry air for the next several days, with SHIPS guidance indicating that the mid-level relative humidity will decrease to under 40 percent in a few days. Also, it appears that there will be increasing subsidence over the system starting in a couple of days due to a ridge building to the northwest of the cyclone. Neither of these conditions bode well for maintaining organized deep convection. And, with it anticipated that the depression will struggle to maintain convection it is expected to slowly spin down over the next several days. The official forecast shows Rene degenerating into a remnant low in 5 days, but that timing is low confidence, as the system may generate just enough convection over warm waters to continue to be classified as a tropical cyclone longer than that. The alternative scenario is that the system could become a remnant low or open into a trough even sooner. The NHC intensity forecast is a little lower than the previous one mainly due to the decrease in initial intensity, and is in good agreement with the various intensity consensus values.

Rene continues to move northwestward, now at 11 kt. A northwestward motion around the western periphery of a mid-level ridge over the eastern Atlantic should continue into tonight. On Sunday, Rene is forecast to slow down as the ridge builds to the northwest and north of the cyclone. By Tuesday, Rene is expected to turn westward and then west-southwestward to southwestward under the influence of the building ridge. The NHC track forecast is very little changed from the previous one, and is near the middle of the track guidance.

The deep convection associated with Rene has gradually decreased over the past several hours, with only a few sporadic patches remaining. A recent ASCAT overpass showed peak winds of 28 kt in the northeastern quadrant, while the latest Dvorak intensity estimates from TAFB and SAB suggest the system is 30 kt. Therefore the initial intensity is being lowered to 30 kt. The depression is forecast to battle dry air for the next several days, with SHIPS guidance indicating that the mid-level relative humidity will decrease to under 40 percent in a few days. Also, it appears that there will be increasing subsidence over the system starting in a couple of days due to a ridge building to the northwest of the cyclone. Neither of these conditions bode well for maintaining organized deep convection. And, with it anticipated that the depression will struggle to maintain convection it is expected to slowly spin down over the next several days. The official forecast shows Rene degenerating into a remnant low in 5 days, but that timing is low confidence, as the system may generate just enough convection over warm waters to continue to be classified as a tropical cyclone longer than that. The alternative scenario is that the system could become a remnant low or open into a trough even sooner. The NHC intensity forecast is a little lower than the previous one mainly due to the decrease in initial intensity, and is in good agreement with the various intensity consensus values.

Rene continues to move northwestward, now at 11 kt. A northwestward motion around the western periphery of a mid-level ridge over the eastern Atlantic should continue into tonight. On Sunday, Rene is forecast to slow down as the ridge builds to the northwest and north of the cyclone. By Tuesday, Rene is expected to turn westward and then west-southwestward to southwestward under the influence of the building ridge. The NHC track forecast is very little changed from the previous one, and is near the middle of the track guidance.

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