Warning Vector

Hurricane Watch

NWS Honolulu HI ยท US

Updated

Details

Hurricane Watch Remains In Effect

Event
Hurricane Watch
Issued
Onset
Message expires
Category
Meteorological
Urgency
Future
Severity
Severe
Certainty
Possible
Response
Prepare

Description

* LOCATIONS AFFECTED - Mauna Kea Summit - Mauna Loa Summit * WIND - LATEST LOCAL FORECAST: Equivalent Cat 1 Hurricane force wind - Peak Wind Forecast: 55-75 mph with gusts to 95 mph - Window for Tropical Storm force winds: late this afternoon until Sunday morning - Window for Hurricane force winds: Friday evening until early Saturday morning - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 74 to 110 mph - The wind threat has increased from the previous assessment. - PLAN: Plan for life-threatening wind of equivalent CAT 1 or 2 hurricane force. - PREPARE: Remaining efforts to protect life and property should be urgently completed. Prepare for considerable wind damage. - ACT: Move to safe shelter before the wind becomes hazardous. - POTENTIAL IMPACTS: Extensive - Considerable roof damage to sturdy buildings, with some having window, door, and garage door failures leading to structural damage. Mobile homes severely damaged, with some destroyed. Damage accentuated by airborne projectiles. Locations may be uninhabitable for weeks. - Many large trees snapped or uprooted along with fences and roadway signs blown over. - Some roads impassable from large debris, and more within urban or heavily wooded places. Several bridges, causeways, and access routes impassable. - Large areas with power and communications outages. * FLOODING RAIN - LATEST LOCAL FORECAST: Flood Watch is in effect - Peak Rainfall Amounts: Additional 10-15 inches, with locally higher amounts - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for extreme flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for extreme flooding from heavy rain. Evacuations and rescues are likely. - PREPARE: Urgently consider protective actions from extreme and widespread rainfall flooding. - ACT: Heed any flood watches and warnings. Failure to take action will likely result in serious injury or loss of life. - POTENTIAL IMPACTS: Devastating to Catastrophic - Extreme rainfall flooding may prompt numerous evacuations and rescues. - Rivers and tributaries may overwhelmingly overflow their banks in many places with deep moving water. Small streams, creeks, canals, arroyos, and ditches may become raging rivers. In mountain areas, deadly runoff may rage down valleys while increasing susceptibility to rockslides and mudslides. Flood control systems and barriers may become stressed. - Flood waters can enter numerous structures within multiple communities, some structures becoming uninhabitable or washed away. Numerous places where flood waters may cover escape routes. Streets and parking lots become rivers of raging water with underpasses submerged. Driving conditions become very dangerous. Numerous road and bridge closures with some weakened or washed out. * TORNADO - LATEST LOCAL FORECAST: - Situation is somewhat favorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for a few tornadoes - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for a few tornadoes. - PREPARE: If your shelter is particularly vulnerable to tornadoes, prepare to relocate to safe shelter before hazardous weather arrives. - ACT: If a tornado warning is issued, be ready to shelter quickly. - POTENTIAL IMPACTS: Limited - The occurrence of isolated tornadoes can hinder the execution of emergency plans during tropical events. - A few places may experience tornado damage, along with power and communications disruptions. - Locations could realize roofs peeled off buildings, chimneys toppled, mobile homes pushed off foundations or overturned, large tree tops and branches snapped off, shallow-rooted trees knocked over, moving vehicles blown off roads, and small boats pulled from moorings. * FOR MORE INFORMATION: - https://www.weather.gov/hfo

Affected areas

  • Big Island Summit

Public contact

Issuer
NWS Honolulu HI

Message record

Received
Issue to receipt
~1m4s
CAP status
Actual
CAP message type
Update
Lifecycle
Updated
Source
NWWS-OI
Feed
NWWS
Recovered
No
CAP routing and identity
ULID
01M39YKDNCTHBRVYPAWE6FCJ27
Identifier
urn:oid:2.49.0.1.840.0.505969b4cd80e20f3a4aca9eec7fe4dbd80d59ec.008.1
Sender
w-nws.webmaster@noaa.gov
Scope
Public
CAP source
211803 v2.3.0
Handling codes
IPAWSv1.0
Issuing office
NWS Honolulu HI
AWIPS ID
CAPHFO
NWWS sequence
nwws_processor.4045
WMO heading
XOHW50
WMO data type
CAP alert message XML (XO)
WMO geography
Hawaiian Islands (HW)
WMO bulletin number
50

References

Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent
Sender
w-nws.webmaster@noaa.gov
Sent

Event codes

NameValue
SAMEHUA
NationalWeatherServiceHUA

Parameters

NameValue
AWIPSidentifierTCVHFO
WMOidentifierWTHW80 PHFO 241454
NWSheadlineHURRICANE WATCH REMAINS IN EFFECT
BLOCKCHANNELEAS
BLOCKCHANNELNWEM
EAS-ORGWXR
VTEC/O.CON.PHFO.HU.A.2015.000000T0000Z-000000T0000Z/
BLOCKCHANNELCMAS
expiredReferencesw-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.e4252018d6318bfb2a7a9a9d020c61228bd36409.008.1,2026-09-23T16:56:00-10:00 w-nws.webmaster@noaa.gov,urn:oid:2.49.0.1.840.0.9a0ced30397152a87983a212c3eb87437d305097.008.1,2026-09-23T11:01:00-10:00
Locations

Location data

  • Big Island Summit
NameValue
SAME015001
UGCHIZ028
Polygons
19.324,-155.582 19.298,-155.636 19.281,-155.713 19.317,-155.732 19.398,-155.724 19.462,-155.711 19.528,-155.695 19.572,-155.656 19.606,-155.569 19.609,-155.516 19.595,-155.459 19.567,-155.415 19.536,-155.396 19.483,-155.434 19.427,-155.477 19.367,-155.528 19.324,-155.582
19.740,-155.412 19.737,-155.455 19.763,-155.505 19.795,-155.556 19.805,-155.570 19.824,-155.577 19.850,-155.566 19.877,-155.522 19.899,-155.478 19.893,-155.439 19.895,-155.401 19.871,-155.370 19.813,-155.368 19.779,-155.383 19.740,-155.412