4 a.m.: Delta Continues Moving Inland; Tornadoes a Threat Today

BULLETIN
Tropical Storm Delta Advisory Number 23
NWS National Hurricane Center Miami FL AL262020
400 AM CDT Sat Oct 10 2020

…DELTA CONTINUES MOVING INLAND…
…HEAVY RAINS AND TROPICAL STORM FORCE WINDS CONTINUE NEAR ITS
PATH…

SUMMARY OF 400 AM CDT…0900 UTC…INFORMATION
———————————————-
LOCATION…31.8N 91.8W
ABOUT 45 MI…70 KM SSE OF MONROE LOUISIANA
MAXIMUM SUSTAINED WINDS…45 MPH…75 KM/H
PRESENT MOVEMENT…NNE OR 25 DEGREES AT 16 MPH…26 KM/H
MINIMUM CENTRAL PRESSURE…990 MB…29.24 INCHES

WATCHES AND WARNINGS
——————–
CHANGES WITH THIS ADVISORY:

The Storm Surge Warning has been discontinued from Cameron to Port
Fourchon, Louisiana, including Vermilion Bay.

The Tropical Storm Warning along the coast from High Island Texas to
the mouth of the Pearl River, including New Orleans, Lake
Pontchartrain and Lake Maurepas has been discontinued.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

No coastal watches and warnings are in effect.

For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.

DISCUSSION AND OUTLOOK
———————-
At 400 AM CDT (0900 UTC), the center of Tropical Storm Delta was
located near latitude 31.8 North, longitude 91.8 West. Delta is
moving toward the north-northeast near 16 mph (26 km/h). A motion
toward the northeast is expected to begin later today and continue
through Sunday night. On the forecast track, the center of Delta
should move across northeastern Louisiana this morning and
then across northern Mississippi and into the Tennessee Valley
later today and Sunday.

Maximum sustained winds have decreased to near 45 mph (75 km/h)
with higher gusts. Additional weakening is forecast, and Delta is
expected to become a tropical depression later today.

Tropical-storm-force winds extend outward up to 90 miles (150 km)
from the center. A sustained wind of 39 mph (63 km/h) with a gust
to 63 mph (102 km/h) was recently reported in Alexandria,
Louisiana. A sustained wind of 37 mph (59 mph) with a gust to 63
mph (102 km/h) was recently observed in Monroe, Louisiana.

The estimated minimum central pressure based on surface
observations is 990 mb (29.24 inches).

HAZARDS AFFECTING LAND
———————-
Key messages for Delta can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT1, WMO header WTNT41
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml.

STORM SURGE: Water levels will continue to subside today along the
Louisiana coast. Consult products issued by your local National
Weather Service forecast office for additional information.

RAINFALL: For northern Louisiana, southeast Arkansas, and western
Mississippi, Delta is expected to produce an additional 2 to 5
inches of rain, with isolated storm totals of 10 inches. These
rainfall amounts will lead to flash, urban, small stream, and minor
river flooding.

As the remnants of Delta move further inland, 1 to 3 inches of rain,
with locally higher amounts, are expected in the Tennessee Valley
and Mid Atlantic through the weekend. There is a potential for 3 to
6 inches in the Southern Appalachians, which could lead to flash,
urban, small stream, along with isolated minor river flooding.

TORNADOES: A few tornadoes are possible today and tonight across
eastern Mississippi, Alabama, the Florida Panhandle, and
western/central Georgia.

SURF: Swells from Delta are gradually subsiding along the northern
Gulf coast. Please consult products from your local weather office
for additional information.

NEXT ADVISORY
————-
Next intermediate advisory at 700 AM CDT.
Next complete advisory at 1000 AM CDT.

$$
Forecaster Cangialosi/Zelinsky

Category: ALL POSTS, Tropical