BULLETIN
Tropical Depression Laura Advisory Number 34
NWS Weather Prediction Center College Park MD AL132020
400 AM CDT Fri Aug 28 2020
…LAURA LOSING TROPICAL CHARACTERISTICS…
…FLOOD THREAT CONTINUES…
SUMMARY OF 400 AM CDT…0900 UTC…INFORMATION
———————————————-
LOCATION…35.8N 91.5W
ABOUT 95 MI…155 KM WNW OF MEMPHIS TENNESSEE
ABOUT 175 MI…280 KM WSW OF PADUCAH KENTUCKY
MAXIMUM SUSTAINED WINDS…30 MPH…45 KM/H
PRESENT MOVEMENT…NE OR 45 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…998 MB…29.47 INCHES
WATCHES AND WARNINGS
——————–
There are no coastal watches or warnings in effect.
DISCUSSION AND OUTLOOK
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At 400 AM CDT (0900 UTC), the center of Tropical Depression Laura
was located near latitude 35.8 North, longitude 91.5 West. The
depression is moving toward the northeast near 13 mph (20 km/h) and
this motion is expected to become east-northeasterly during the day
on Friday, with some acceleration expected Saturday and Sunday.
Maximum sustained winds are near 30 mph (45 km/h) with higher
gusts. Little change in strength is expected on Friday, with
strengthening expected late Saturday into Sunday as Laura moves
into the northwest Atlantic.
The estimated minimum central pressure is 998 mb (29.47 inches).
HAZARDS AFFECTING LAND
———————-
RAINFALL: Through tonight, Laura is expected to produce the
following additional rainfall totals:
Northeastern Arkansas, northern Mississippi, northern Alabama,
western and Middle Tennessee, southeastern Missouri, western and
central Kentucky: 1 to 3 inches, with isolated totals of 5 inches.
Southern Louisiana, southern Mississippi, and southern Alabama: 1
to 2 inches, with isolated totals of 4 inches.
This rainfall will continue to cause isolated flash and urban
flooding, small streams and creeks to overflow their banks, and
minor to moderate river flooding.
On Saturday, Laura is expected to produce 1 to 2 inches with
isolated maximum amounts of 3 inches across portions of the
central and southern Appalachians, and the Mid-Atlantic States.
This rainfall may lead to flash and urban flooding and rapid rises
on small streams.
TORNADOES: The threat for a few tornadoes is expected to
redevelop this afternoon into the evening across parts of the
Mid-South and Tennessee Valley regions.
SURF: Swells produced by Laura continue to affect the
north-central and northeast Gulf Coast. These swells are likely
to cause life-threatening surf and rip current conditions. Please
consult products from your local weather office.
NEXT ADVISORY
————-
Next complete advisory at 1000 AM CDT.
$$
Forecaster Roth
FORECAST POSITIONS AND MAX WINDS
INIT 28/0900Z 35.8N 91.5W 25 KT 30 MPH…INLAND
12H 28/1800Z 36.8N 89.8W 25 KT 30 MPH…INLAND
24H 29/0600Z 37.6N 85.6W 25 KT 30 MPH…POST-TROP/REMNT LOW
36H 29/1800Z 38.1N 79.5W 30 KT 35 MPH…POST-TROP/REMNT LOW
48H 30/0600Z 39.0N 72.6W 35 KT 40 MPH…POST-TROP/REMNT LOW
60H 30/1800Z 40.6N 65.9W 35 KT 40 MPH…POST-TROP/EXTRATROP
72H 31/0600Z 44.0N 56.6W 40 KT 45 MPH…POST-TROP/EXTRATROP