BULLETIN
Post-Tropical Cyclone Beta Advisory Number  23
NWS Weather Prediction Center College Park MD   AL222020
400 AM CDT Wed Sep 23 2020

...BETA CONTINUES NORTHEASTWARD MOTION BRINGING HEAVY RAINFALL FROM
EASTERN TEXAS INTO THE LOWER MISSISSIPPI RIVER VALLEY...


SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
----------------------------------------------
LOCATION...29.5N 95.0W
ABOUT 30 MI...45 KM ESE OF HOUSTON TEXAS
ABOUT 70 MI...115 KM WSW OF PORT ARTHUR TEXAS
MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H
PRESENT MOVEMENT...ENE OR 60 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES


WATCHES AND WARNINGS
--------------------
There are Flash Flood Watches currently in effect across Southeast
Texas and Southern Louisiana.


DISCUSSION AND OUTLOOK
----------------------
At 400 AM CDT (0900 UTC), the center of Post-Tropical Cyclone Beta
was located near latitude 29.5 North, longitude 95.0 West. The
post-tropical cyclone is moving toward the east-northeast near 9 mph
(15 km/h) and this motion is expected to shift more toward the
northeast during the next 48 hours.

Maximum sustained winds are near 30 mph (45 km/h) with higher gusts.
Slow weakening is forecast during the next 48 hours.

The estimated minimum central pressure is 1007 mb (29.74 inches).


HAZARDS AFFECTING LAND
----------------------
RAINFALL: For the upper Texas coast, additional rainfall of 3 to 5
inches with isolated storm totals up to 15 inches is expected
through Wednesday afternoon. Significant urban flooding will
continue as well as minor to isolated moderate river flooding. Flash
flooding will remain possible through Wednesday afternoon.

Rainfall totals of 2 to 5 inches are expected east into the Lower
Mississippi Valley, portions of the Tennessee Valley, and the
southern Appalachians through the end of the week. Flash and urban
flooding is possible, as well as isolated minor river flooding on
smaller rivers.

SURF:  Swells generated by a combination of Beta and a
stationary front over the northern Gulf of Mexico will continue
from the Upper Coast of Texas to the Western Florida Panhandle
during the next couple of days.  These swells are likely to cause
life-threatening surf and rip current conditions. Information on
ongoing coastal flooding can be found in coastal flood products
issued by local National Weather Service offices.


NEXT ADVISORY
-------------
Next complete advisory at 1000 AM CDT.


Forecaster Gallina

FORECAST POSITIONS AND MAX WINDS

INIT  23/0900Z 29.5N  95.0W   25 KT  30 MPH...POST-TROPICAL
 12H  23/1800Z 30.1N  93.8W   25 KT  30 MPH...POST-TROP/EXTRATROP
 24H  24/0600Z 31.2N  92.0W   25 KT  30 MPH...POST-TROP/EXTRATROP
 36H  24/1800Z 32.6N  89.9W   20 KT  25 MPH...POST-TROP/EXTRATROP
 48H  25/0600Z 34.0N  87.9W   15 KT  15 MPH...POST-TROP/EXTRATROP
 60H  25/1800Z...DISSIPATED