681
WTPZ41 KNHC 102033
TCDEP1
POST-TROPICAL CYCLONE PRISCILLA DISCUSSION NUMBER 25
NWS NATIONAL HURRICANE CENTER MIAMI FL EP162025
200 PM PDT FRI OCT 10 2025
PRISCILLA HAS LACKED ORGANIZED DEEP CONVECTION FOR MUCH OF THE DAY,
AND VISIBLE SATELLITE IMAGES AND ASCAT DATA SHOW THAT THE LOW-LEVEL
CIRCULATION IS GRADUALLY LOSING DEFINITION. SINCE DEEP CONVECTION
IS NOT EXPECTED TO RETURN, PRISCILLA IS NOW DESIGNATED A REMNANT
LOW AND THIS IS THE LAST NHC ADVISORY. THE INITIAL INTENSITY IS
LOWERED TO 30 KT BASED ON THE ASCAT DATA.
THE SYSTEM IS MOVING NORTHWARD AT 5 KT, AND THAT MOTION SHOULD
CONTINUE UNTIL THE SYSTEM DISSIPATES BY EARLY SATURDAY.
EVEN THOUGH PRISCILLA IS NO LONGER A TROPICAL CYCLONE, ITS REMNANT
MOISTURE IS EXPECTED TO CONTINUE TO SPREAD ACROSS PORTIONS OF THE
WESTERN UNITED STATES. HEAVY RAINFALL AND FLASH FLOODING ARE LIKELY
TO CONTINUE OVER PARTS OF CENTRAL ARIZONA AND SOUTHWEST UTAH, WITH
SCATTERED AREAS OF FLASH FLOODING POSSIBLE ACROSS THE REMAINDER OF
ARIZONA, SOUTHERN UTAH, SOUTHWESTERN COLORADO, AND FAR NORTHWESTERN
NEW MEXICO. PLEASE MONITOR FORECASTS AND UPDATES FROM LOCAL
NATIONAL WEATHER SERVICE OFFICES IN THE SOUTHWEST U.S. AT
WEATHER.GOV AND FROM THE WEATHER PREDICTION CENTER AT
WPC.NCEP.NOAA.GOV.
FORECAST POSITIONS AND MAX WINDS
INIT 10/2100Z 26.3N 115.4W 30 KT 35 MPH...POST-TROPICAL
12H 11/0600Z 26.8N 115.6W 25 KT 30 MPH...POST-TROP/REMNT LOW
24H 11/1800Z...DISSIPATED
FORECASTER CANGIALOSI
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