High North America

NWS / NOAA weather: Hurricane Warning issued August 15 at 11:00PM HST by NWS Honolulu HI

* LOCATIONS AFFECTED
- Mauna Kea Summit
- Mauna Loa Summit

* WIND
- LATEST LOCAL FORECAST: Equivalent Tropical Storm force wind
- Peak Wind Forecast: 40-50 mph with gusts to 75 mph
- Window for Tropical Storm force winds: until early Sunday
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 remained nearly steady from the
previous assessment.
- PLAN: Plan for life-threatening wind of equivalent CAT 1 or
2 hurricane force.
- PREPARE: Last minute efforts should solely focus on
protecting life. The area remains subject to considerable
wind damage.
- ACT: Now is the time to shelter from life-threatening wind.

- POTENTIAL IMPACTS: Unfolding
- Potential impacts from the main wind event are unfolding.

* FLOODING RAIN
- LATEST LOCAL FORECAST: Flood Watch is in effect
- Peak Rainfall Amounts: Additional 1-3 inches, with locally
higher amounts

- THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST
UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for major
flooding rain
- The flooding rain threat has remained nearly steady from
the previous assessment.
- PLAN: Emergency plans should include the potential for
major flooding from heavy rain. Evacuations and rescues are
likely.
- PREPARE: Strongly consider protective actions, especially
if you are in an area vulnerable to flooding.
- ACT: Heed any flood watches and warnings. Failure to take
action will likely result in serious injury or loss of life.

- POTENTIAL IMPACTS: Extensive
- Major rainfall flooding may prompt many evacuations and
rescues.
- Rivers and tributaries may rapidly overflow their banks in
multiple places. Small streams, creeks, canals, arroyos,
and ditches may become dangerous rivers. In mountain areas,
destructive runoff may run quickly down valleys while
increasing susceptibility to rockslides and mudslides.
Flood control systems and barriers may become stressed.
- Flood waters can enter many structures within multiple
communities, some structures becoming uninhabitable or
washed away. Many places where flood waters may cover
escape routes. Streets and parking lots become rivers of
moving water with underpasses submerged. Driving conditions
become dangerous. Many 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 continue to include possible
tornadoes.
- PREPARE: Stay within your shelter keeping informed of the
latest tornado situation.
- ACT: Move quickly to the safest place within your shelter
if a tornado warning is issued.

- 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

Severity
Extreme (5/5) · CAP Extreme
This month
5th Hurricane / cyclone alert at severity 5+ in the last 30 days
Source: NWS / NOAA weather

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