617 
WTPA34 PHFO 080548
TCPCP4
 
BULLETIN
Hurricane Lowell Intermediate Advisory Number 48A
NWS Central Pacific Hurricane Center Honolulu HI   EP122026
Issued by NWS National Hurricane Center Miami FL
800 PM HST Mon Sep 07 2026
 
...CONDITIONS DETERIORATING ACROSS KAUAI COUNTY AS LOWELL 
APPROACHES...
...FLASH FLOODING, DAMAGING WAVES, AND STRONG WINDS ARE EXPECTED...
 
 
SUMMARY OF 800 PM HST...0600 UTC...INFORMATION
----------------------------------------------
LOCATION...20.9N 161.1W
ABOUT 135 MI...215 KM SW OF LIHUE HAWAII
ABOUT 210 MI...335 KM W OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H
PRESENT MOVEMENT...NNE OR 25 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...961 MB...28.38 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Warning is in effect for...
* Kauai County, including the islands of Kauai and Niihau
* The Papahanaumokuakea Marine National Monument from Nihoa to
French Frigate Shoals
 
A Tropical Storm Warning is in effect for...
* Oahu
 
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life
and property should be rushed to completion.
 
A Tropical Storm Warning means that tropical storm conditions are
expected within the warning area.
 
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 800 PM HST (0600 UTC), the center of Hurricane Lowell was located 
near latitude 20.9 North, longitude 161.1 West. Lowell is moving 
toward the north-northeast near 18 mph (30 km/h). A motion toward 
the north-northeast and north at a similar forward speed is forecast 
through Tuesday. The core of Lowell is expected to pass near or just 
west of Niihau tonight and early Tuesday. Then, Lowell is forecast 
to turn toward the northwest and slow down by early Wednesday after 
passing the Hawaiian Islands.

Maximum sustained winds are near 110 mph (175 km/h) with higher 
gusts. Weakening is expected over the next several days. However, 
Lowell is forecast to remain a hurricane as it passes near the 
Hawaiian Islands tonight into early Tuesday.
 
Hurricane-force winds extend outward up to 70 miles (110 km) from 
the center and tropical-storm-force winds extend outward up to 175 
miles (280 km). A weather station in Waimea along the south-central 
coast of Kauai recently reported sustained winds of 49 mph (79 km/h) 
with a gust to 68 mph (109 km/h). Lihue Airport (PHLI) along the 
southeastern coast of Kauai recently reported sustained winds of 40 
mph (64 km/h) with a gust to 52 mph (84 km/h).
 
The estimated minimum central pressure based on aircraft data is 961 
mb (28.38 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Lowell can be found in the Tropical Cyclone
Discussion under AWIPS header HFOTCDCP4 and WMO header WTPA44
PHFO.
 
WIND: Hurricane conditions are expected to begin in Kauai County 
during the next several hours. Wind speeds atop and on the windward 
and leeward sides of hills and mountains are often up to 30 percent 
stronger than the near-surface winds. Tropical storm conditions are 
expected on Oahu tonight into early Tuesday.
 
Tropical storm conditions are ongoing in the Papahanaumokuakea 
Marine National Monument between Nihoa and French Frigate Shoals, 
and hurricane conditions are expected there tonight.
 
RAINFALL: Lowell is expected to produce additional rainfall totals 
of 4 to 8 inches for Kauai, with maximum storm totals of 24 inches 
possible. For the Big Island, an additional 3 to 8 inches of rain is 
expected with isolated storm totals of 12 inches possible. For Oahu 
and Maui County, an additional 2 to 5 inches of rain is expected 
with isolated storm totals of 10 inches possible. This rainfall may 
produce significant flash flooding and mudslides, especially across 
Kauai County and portions of the Big Island.
 
For a complete depiction of forecast rainfall associated with 
Lowell, please see the National Weather Service Storm Total Rainfall 
Graphic available at 
https://hurricanes.gov/storm_graphics/EP12/EP1226WPCQPF.gif
 
STORM SURGE: The combination of storm surge and tide will cause
normally dry areas near the coast to be flooded by rising waters
moving inland from the shoreline. The water could reach the
following heights above ground somewhere in the indicated areas if
the peak surge occurs at the time of high tide...
 
Kauai County...2-4 ft, with the highest expected values along the
south coast of Kauai and the island of Niihau
Oahu...Up to 1 ft
 
The deepest water will occur along the immediate coast near and to
the right of the center, where the surge will be accompanied by
large and destructive waves. Surge-related flooding depends on the
relative timing of the surge and the tidal cycle, and can vary
greatly over short distances.
 
For a complete depiction of areas at risk of storm surge inundation,
please see the National Weather Service Peak Storm Surge Graphic,
available at hurricanes.gov/graphics_cp4.shtml?peakSurge.
 
TORNADOES: Several tornadoes are possible near Kauai and Niihau
this evening through the overnight period. A few tornadoes are also 
possible across the remainder of the Hawaiian Islands.
 
SURF: Swells from Lowell will continue to generate life-threatening 
surf and rip current conditions during the next few days across many 
of the Hawaiian Islands. Please consult products from your local 
weather office.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 1100 PM HST.
 
$$
Forecaster Reinhart