ZCZC MIATCPAT5 ALL
TTAA00 KNHC DDHHMM
Tropical Storm Gamma Intermediate Advisory Number 11A
NWS National Hurricane Center Miami FL AL252020
100 AM CDT Mon Oct 05 2020
...RECONNAISSANCE AIRCRAFT FINDS GAMMA A LITTLE WEAKER WHILE IT
CONTINUES TO MEANDER JUST NORTH OF THE YUCATAN PENINSULA...
SUMMARY OF 100 AM CDT...0600 UTC...INFORMATION
ABOUT 180 MI...290 KM ENE OF PROGRESO MEXICO
ABOUT 165 MI...265 KM NNW OF COZUMEL MEXICO
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 2 MPH...4 KM/H
MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Tropical Storm Warning is in effect for...
* North and west of Cancun to Dzilam Mexico
A Tropical Storm Watch is in effect for...
* West of Dzilam to Campeche Mexico
A Tropical Storm Warning means that tropical storm conditions are
occurring somewhere within the warning area.
A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area.
For storm information specific to your area, please monitor
products issued by your national meteorological service.
DISCUSSION AND OUTLOOK
At 100 AM CDT (0600 UTC), data from an Air Force Reserve Hurricane
Hunter aircraft indicated that the center of Tropical Storm Gamma
was located near latitude 22.8 North, longitude 87.4 West. The
tropical storm is drifting toward the west near 2 mph (4 km/h).
Gamma is forecast to gradually turn toward the southwest or
west-southwest later today, and continue to move slowly in that
direction through mid-week. On the forecast track, the center of
Gamma will continue to meander offshore of the northern Yucatan
Peninsula this morning, and pass near or just offshore of the
northern coast of the Yucatan Peninsula late today and on Tuesday.
Data from the reconnaissance aircraft indicate that maximum
sustained winds have decreased to near 50 mph (85 km/h) with higher
gusts. Further weakening is forecast during the next 48 hours.
Afterward, little change in strength is forecast.
Tropical-storm-force winds extend outward up to 160 miles (260 km)
from the center.
The estimated minimum central pressure based on measurements from
the hurricane hunter plane is 999 mb (29.50 inches).
HAZARDS AFFECTING LAND
Key messages for Tropical Storm Gamma can be found in the Tropical
Cyclone Discussion under AWIPS header MIATCDAT5, WMO header WTNT45
KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml.
RAINFALL: Gamma is expected to produce an additional 3 to 6 inches
of rainfall, with isolated maximum amounts of 8 inches, across
portions of the Mexican states of Yucatan, Campeche and Tabasco.
This rainfall may enhance any ongoing flash flooding and result in
new areas of flash flooding into the middle of the week.
WIND: Tropical storm conditions are likely in portions of the
Tropical Storm Warning area along the northern coast of the Yucatan
Peninsula today. Tropical Storm conditions are possible within the
Tropical Storm Watch area late today and on Tuesday.
Next complete advisory at 400 AM CDT.