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NOHW40 PHFO 181626
PNSHFO
HIZ001-003-004-006-007-009>011-015>018-022-023-026>054-190430-
PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE HONOLULU HI
626 AM HST MON MAY 18 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:
CHRIS BRENCHLEY
METEOROLOGIST IN CHARGE
NATIONAL WEATHER SERVICE OFFICE HONOLULU, HAWAII
CHRISTOPHER.BRENCHLEY@NOAA.GOV
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
NNNN
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