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Tropical Storm Hanna Advisory Number 14
NWS National Hurricane Center Miami FL AL082020
400 AM CDT Sun Jul 26 2020
...CENTER OF HANNA MOVES INTO NORTHEASTERN MEXICO...
...STORM SURGE WARNING DISCONTINUED FOR THE TEXAS COAST...
SUMMARY OF 400 AM CDT...0900 UTC...INFORMATION
ABOUT 40 MI...65 KM WNW OF MCALLEN TEXAS
ABOUT 65 MI...105 KM ENE OF MONTERREY MEXICO
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...WSW OR 250 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
The Storm Surge Warning has been discontinued along the Texas coast.
The Tropical Storm Warning has been discontinued north of Baffin
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* Barra el Mezquital Mexico to Baffin Bay Texas
A Tropical Storm Warning means that tropical storm conditions are
occurring within the warning areas.
Interests in northeastern Mexico should monitor the progress of
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 Hanna was
located near latitude 26.3 North, longitude 98.9 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 today and tonight.
Maximum sustained winds are near 60 mph (95 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 by tonight 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. Miller International
Airport in McAllen recently reported a wind gust of 54 mph
The estimated minimum central pressure is 988 mb (29.18 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
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
TORNADOES: A few tornadoes are possible today into this evening
across parts of south Texas.
Next intermediate advisory at 700 AM CDT.
Next complete advisory at 1000 AM CDT.