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NOUS41 KNHC 151547
PNSNHC
PUBLIC INFORMATION STATEMENT
NWS NATIONAL HURRICANE CENTER MIAMI FL
1145 AM EDT FRI MAY 15 2026
TO: SUBSCRIBERS:
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAAPORT
OTHER NWS PARTNERS AND NWS EMPLOYEES
FROM: JAMIE RHOME, DEPUTY DIRECTOR
NATIONAL HURRICANE CENTER
SUBJECT: TROPICAL COLLABORATION TESTING MAY 18
THE NWS NATIONAL HURRICANE CENTER (NHC) AND WEATHER FORECAST OFFICE
HONOLULU (HFO) WILL PERFORM INTERNAL TROPICAL COLLABORATION TESTING
ON MAY 18, 2026.
THIS INTERNAL TESTING WILL BEGIN DAILY AT APPROXIMATELY 1500 UTC AND
TERMINATE AT 2100 UTC.
THE TESTING WILL INCLUDE THE EXCHANGE OF TROPICAL STORM, HURRICANE,
AND STORM SURGE WATCHES/WARNINGS BETWEEN NHC AND WFO HFO, GENERATION
OF THE LOCAL WFO HFO TROPICAL CYCLONE WATCH/WARNING (TCV),
GENERATION OF P-SURGE DATA, AND THE ADDITION OF TROPICAL CYCLONE
INFORMATION INTO NATIONAL DIGITAL FORECAST DATABASE (NDFD) ELEMENTS.
INTERNAL TROPICAL WATCHES AND WARNINGS, TCV TEST PRODUCTS AND NDFD
ELEMENTS ARE NOT INTENDED TO BE RELEASED EXTERNALLY THROUGH NWS
DISSEMINATION AND COMMUNICATION SYSTEMS. ANY TCV PRODUCTS THAT ARE
INADVERTENTLY RELEASED DURING THE TESTING PERIOD ARE SOLELY FOR
TESTING PURPOSES AND DO NOT REPRESENT CURRENT OR FORECAST WEATHER
CONDITIONS.
THE TEXT PRODUCT AFFECTED BY COLLABORATION TESTING IS THE LOCAL HFO
TROPICAL CYCLONE WATCH/WARNING (TCV) PRODUCT ISSUED UNDER THE
FOLLOWING AWIPS PRODUCT IDENTIFIERS (PIL) AND WORLD METEOROLOGICAL
ORGANIZATION (WMO) IDENTIFIERS (ID):
TCV PRODUCT AWIPS PIL WMO ID
------------ --------- -------
LOCAL HFO TCV TCVHFO WTHW80 PHFO
THE LOCAL HFO TCV PRODUCT CONTAINS HFO TROPICAL WIND AND/OR STORM
SURGE WATCHES AND WARNINGS, DEPICTED BY NWS-DEFINED GEOGRAPHIC
ZONES. THIS PRODUCT IS USED TO ALERT WIRELESS EMERGENCY ALERTS (WEA)
FOR THE HURRICANE AND STORM SURGE WARNINGS. SINCE PRODUCTS ARE NOT
INTENDED TO BE RELEASED PUBLICLY, NO WEAS ARE EXPECTED.
IN ADDITION, THE FOLLOWING NDFD ELEMENTS WILL BE CREATED FOR THIS
TEST:
- HAZARD GRID (INCLUDING TROPICAL STORM, HURRICANE, AND
STORM SURGE HAZARDS)
P-SURGE GUIDANCE WILL BE RUN DURING THE TEST AND THE TEST DATA WILL
BE AVAILABLE PUBLICLY AT THE FOLLOWING URL:
HTTPS://SLOSH.NWS.NOAA.GOV/PSURGE/
THE NWS WILL CONTINUE PERIODIC INTERNAL TROPICAL SOFTWARE TESTING
DURING THE REMAINDER OF 2026.
FOR MORE INFORMATION, PLEASE CONTACT:
NATIONAL HURRICANE CENTER
TROPICAL.PROGRAM@NOAA.GOV
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
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