Advisories

000
WTPA32 PHFO 232055
TCPCP2
 
BULLETIN
Tropical Storm Nolo Advisory Number  13
NWS Central Pacific Hurricane Center Honolulu HI   EP152026
Issued by NWS National Hurricane Center Miami FL
1100 AM HST Wed Sep 23 2026
 
...TROPICAL STORM NOLO FORMS...
...HURRICANE WATCH ISSUED FOR HAWAII COUNTY...
 
 
SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...14.5N 155.3W
ABOUT 310 MI...500 KM S OF SOUTH POINT HAWAII
ABOUT 500 MI...805 KM SSE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...WNW OR 285 DEGREES AT 6 MPH...9 KM/H
MINIMUM CENTRAL PRESSURE...1003 MB...29.62 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
A Hurricane Watch has been issued for Hawaii County.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Hurricane Watch is in effect for...
* Hawaii County
 
A Hurricane Watch means that hurricane conditions are possible
within the watch area.  A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
dangerous.
 
Interests elsewhere in the Hawaiian Islands should closely monitor
the progress of this system.
 
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 1100 AM HST (2100 UTC), the center of Tropical Storm Nolo was
located near latitude 14.5 North, longitude 155.3 West. Nolo is
moving toward the west-northwest near 6 mph (9 km/h), and this 
general motion is expected today. A sharp turn to the north and 
north-northeast is expected on Thursday, with this motion 
continuing through the end of the week. On the forecast track, the 
system is expected to approach the Big Island of Hawaii on Friday 
and Saturday.
 
Maximum sustained winds have increased to near 40 mph (65 km/h) 
with higher gusts.  Nolo is forecast to become a hurricane on 
Thursday and could become a major hurricane by the weekend.
 
Tropical-storm-force winds extend outward up to 35 miles (55 km)
from the center.
 
The estimated minimum central pressure is 1003 mb (29.62 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
Key messages for Nolo can be found in the can be found in the 
Tropical Cyclone Discussion under AWIPS header HFOTCPCP2 and WMO 
header WTPA42 PHFO.
 
WIND: Hurricane conditions are possible in the watch area starting 
as early as late Friday.
 
RAINFALL: Tropical Storm Nolo will produce rainfall totals of 15 to 
20 inches across the Big Island with maximum amounts of 35 inches. 
This rainfall may produce catastrophic life-threatening flooding and 
mudslides, especially in areas of steep terrain. Rainfall totals of 
5 to 10 inches with maximum amounts of 20 inches expected across 
Maui.  Life-threatening flooding and mudslides possible across Maui, 
especially in areas of high terrain,  Across the remainder of the 
Hawaiian Islands, rainfall totals of 1 to 3 inches with maximum 
amounts of 6 inches are expected with isolated flooding possible. 

For a complete depiction of forecast rainfall associated with 
Tropical Storm Nolo, 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 County...1 to 3 ft 

The deepest water will occur along the immediate coast near and to
the right of the landfall location, 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 Nolo are expected to reach the east and 
south-facing shores of the Big Island on Friday, spreading westward 
and building through the weekend. These swells are likely to cause 
life-threatening surf and rip current conditions. Please consult 
products from your local weather office.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 200 PM HST.
Next complete advisory at 500 PM HST.
 
$$
Forecaster Blake