628. Tropical Storm Gamma » Text Products

• STORM FLOATER •
TROPICAL STORM 25L (GAMMA)
PUBLIC ADVISORY #6
FORCE THIRTEEN SINGAPORE, SINGAPORE
1520 UTC MON OCT 5 2020

...GAMMA LIKELY TO BECOME A REMNANT LOW...

SUMMARY OF 1500 UTC...INFORMATION
-----------------------------------
LOCATION...NEAR 22.3 N 87.6 W...
MAXIMUM SUSTAINED WINDS...45MPH...75KM/H
MINIMUM CENTRAL PRESSURE...1003MB

WATCHES AND WARNINGS
-----------------------------------
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


DISCUSSION
-----------------------------------
Air Force Reserve reconnaissance aircraft investigating Gamma found 
maximum 850 mb flight-level winds of 37 kt and surface SFMR peak 
winds of 40 kt, and the central pressure has increased to 1003 mb.  
Therefore, the initial intensity is lowered to 40 kt for this 
advisory. 

Stiff, persistent southerly shear, and an inhibiting thermodynamic
surrounding environment should prevent Gamma from restrengthening, 
although, the Decay SHIPS intensity model does indicate a very 
brief period of decreasing shear magnitude just prior to landfall 
around the 24 hour period.  Afterward, the shear, once again, 
increases.  Gamma is expected to make landfall over the 
northwestern Yucatan peninsula on Tuesday and further weakening 
to a remnant low is forecast Wednesday as the cyclone remains 
inland over the northern Mexican State of Yucatan.  Dissipation is 
likely to occur Friday over the region, if not sooner.
• RAMMB Multi-Model Diagnostic Comparison •
LOCAL AND OFFICIAL SOURCES BELOW
National Hurricane Center (Atlantic)

THIS IS THE LAST REGULARLY SCHEDULED BULLETIN, NO MORE BULLETINS WILL BE ISSUED.

$$
Forecaster Knack
• OFFICIAL FWC-N FORECAST •
• NATIONAL HURRICANE CENTER FORECAST •

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