000
WTPA32 PHFO 151148
TCPCP2
 
BULLETIN
Tropical Storm Lala Intermediate Advisory Number 12A
NWS Central Pacific Hurricane Center Honolulu HI   CP012026
Issued by NWS National Hurricane Center Miami FL
200 AM HST Sat Aug 15 2026
 
...TROPICAL-STORM-FORCE GUSTS OCCURRING ON THE BIG ISLAND OF 
HAWAII AS LALA APPROACHES...
...HEAVY RAINFALL AND FLOODING EXPECTED ACROSS THE HAWAIIAN ISLAND 
CHAIN THIS WEEKEND...
 
 
SUMMARY OF 200 AM HST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...17.8N 154.0W
ABOUT 140 MI...225 KM SE OF SOUTH POINT HAWAII
ABOUT 350 MI...565 KM SE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 13 MPH...20 KM/H
MINIMUM CENTRAL PRESSURE...991 MB...29.27 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Warning is in effect for...
* Hawaii County
 
A Tropical Storm Warning is in effect for...
* Maui County, including the islands of Maui, Lanai, Molokai and
Kahoolawe
* Oahu
* Kauai County, including the islands of Kauai and Niihau
 
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. A warning is typically issued 36
hours before the anticipated first occurrence of
tropical-storm-force winds, conditions that make outside
preparations difficult or dangerous. Preparations to protect life
and property should be rushed to completion.
 
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area within 36 hours.
 
Interests in the Papahanaumokuakea Marine National Monument should
monitor the progress of Lala. Tropical storm watches may be 
required for the eastern portion of that area later today.
 
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 200 AM HST (1200 UTC), the center of Tropical Storm Lala was
located near latitude 17.8 North, longitude 154.0 West. Lala is
moving toward the west-northwest near 13 mph (20 km/h). This
general motion is expected to continue for the next couple of days,
taking the core of Lala near the South Point of the Big Island of
Hawaii on Saturday and then south of the smaller islands on Sunday.
 
Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts.  Steady strengthening is forecast, and Lala is expected to
become a hurricane as it approaches the Big Island later today. A 
wind gust to 61 mph (98 km/h) was recently measured at Pu'u Mali on 
the northern slope of Mauna Kea on the Big Island of Hawaii.
 
Tropical-storm-force winds extend outward up to 220 miles (350 km)
from the center.
 
The estimated minimum central pressure is 991 mb (29.27 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Tropical Storm Lala can be found in the Tropical
Cyclone Discussion under AWIPS header HFOTCDCP2 and WMO header
WTPA42 PHFO.
 
WIND: Hurricane conditions are expected on the Big Island of Hawaii
later today, with tropical storm conditions expected in Maui County
tonight. Tropical storm conditions are expected on Oahu and Kauai 
County by Sunday morning. Wind speeds atop mountains and on the 
windward and leeward slopes are often up to 30 percent stronger
than the near-surface winds indicated in this advisory, and in some
elevated locations could be even greater.
 
RAINFALL: Tropical Storm Lala is expected to produce rainfall totals
of 10 to 20 inches across the Big Island, with locally higher
amounts up to 25 inches possible. Rainfall totals of 8 to 12 inches
are expected across Maui, with 4 to 6 inches and maximum amounts of
8 inches expected across the remainder of the island chain. This
rainfall may produce life-threatening flooding and mudslides,
especially in areas of steep terrain.
 
For a complete depiction of forecast rainfall associated with
Lala, please see the National Weather Service Storm Total Rainfall
Graphic available at hurricanes.gov/graphics_cp2.shtml?rainqpf
 
STORM SURGE: The combination of a dangerous storm surge and the
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...
 
Hawaii...1 to 3 ft
 
The deepest water will occur along the immediate coast, where the
surge will be accompanied by large and dangerous waves.
Surge-related flooding depends on the relative timing of the surge
and the tidal cycle, and can vary greatly over short distances. For
information specific to your area, please see products issued by
your local National Weather Service forecast office.
 
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_cp2.shtml?peakSurge.
 
SURF: Swells generated by Lala are steadily building along
east-facing shores and will continue to increase through the
weekend. Swells will also build along exposed southern shores as
Lala passes south of the islands. These swells are likely to cause
life-threatening surf and rip current conditions. Please consult
products from your local weather office.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 500 AM HST.
 
$$
Forecaster Berg