Tropical Storm Hanna Public Advisory

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000
WTNT33 KNHC 261151
TCPAT3

BULLETIN
Tropical Storm Hanna Intermediate Advisory Number 14A
NWS National Hurricane Center Miami FL       AL082020
700 AM CDT Sun Jul 26 2020

...HANNA PRODUCING HEAVY RAIN AND DANGEROUS FLASH FLOODING OVER FAR 
SOUTHEAST TEXAS AND NORTHEAST MEXICO...


SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...26.2N 99.1W
ABOUT 55 MI...85 KM W OF MCALLEN TEXAS
ABOUT 110 MI...175 KM ENE OF MONTERREY MEXICO
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...WSW OR 250 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...992 MB...29.29 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for...
* Barra el Mezquital Mexico to Baffin Bay Texas

Interests in northeastern Mexico should monitor the progress of
Hanna.

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 700 AM CDT (1200 UTC), the center of Tropical Storm Hanna was
located near latitude 26.2 North, longitude 99.1 West. Hanna is
moving toward the west-southwest near 9 mph (15 km/h) and this
motion is expected to continue through Monday. On the forecast
track, the center of Hanna should continue to move farther inland
over northeastern Mexico through tonight.

Maximum sustained winds are near 50 mph (85 km/h) with higher
gusts. Rapid weakening is expected as the center of Hanna moves
farther inland, and the cyclone is expected to weaken to a tropical
depression later today and dissipate Monday or Monday night.

Tropical-storm-force winds extend outward up to 115 miles (185 km)
mainly over water to the east of the center. A wind gust of 49 mph
(80 km/h) was reported within the past couple of hours at Port
Isabel-Cameron County Airport.

The estimated minimum central pressure is 992 mb (29.29 inches).


HAZARDS AFFECTING LAND
----------------------
Key messages for Hanna can be found in the Tropical Cyclone
Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC and
on the web at www.hurricanes.gov/text/MIATCDAT3.shtml.

STORM SURGE:  Water levels along the Texas coast will gradually
subside through this morning. Consult products issued by your
local National Weather Service forecast office for additional
information.

WIND:  Tropical storm conditions will continue near the center of
Hanna for the next several hours, and along the Texas and
northeastern Mexican coast in the warning area for a few more hours.

RAINFALL: Hanna is expected to produce total rain accumulations of 6
to 12 inches, with isolated maximum amounts of 18 inches through
Monday in south Texas and into the Mexican states of Coahuila, Nuevo
Leon, and northern Tamaulipas.  This rain will produce
life-threatening flash flooding, rapid rises on small streams, and
isolated minor to moderate river flooding.

Hanna is also expected to produce 2 to 4 inches of rain along the
upper Texas and Louisiana coasts.

SURF:  Swells generated by Hanna will continue to affect much
of the Texas and Louisiana coasts for another day or so. These
swells are likely to cause life-threatening surf and rip current
conditions.  Please consult products from your local weather
office.

TORNADOES:  A few tornadoes are possible today into this evening
across parts of south Texas.


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

$$
Forecaster Brown/Zelinsky



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