A TROPICAL STORM WARNING IS IN EFFECT FOR:
- HAWAII COUNTY
- MAUI COUNTY, INCLUDING THE ISLANDS OF MAUI, MOLOKAI, LANAI AND KAHOOLAWE
A TROPICAL STORM WATCH IS IN EFFECT FOR
- KAUAI AND NIIHAU
A tropical storm warning means that tropical storm conditions are expected within the warning area within 36 hours.
A tropical storm watch means that tropical storm conditions are possible within the watch area within 48 hours.
For storm information specific to your area in the United States, please monitor products issued by the Honolulu nws forecast office.
At 11 a.m. HST, 2100 UTC, the center of tropical storm Flossie was located near latitude 19.9 north, longitude 148.5 west. Flossie is moving toward the west near 20 mph, 32 km/h, and this motion is expected to continue through the next 48 hours, with a slight slowing in forward speed.
Maximum sustained winds are near 60 mph, 95 km/h, with higher gusts. Some weakening is forecast during the next 48 hours.
Tropical storm force winds extend outward up to 160 miles, 260 km from the center.
Estimated minimum central pressure is 996 mb, 29.41 inches.
Tropical storm conditions are expected to reach the Big Island and Maui county Monday morning, and are possible on Oahu Monday night.
Heavy rainfall is expected to begin as early as Monday morning over Hawaii county and Monday afternoon over Maui county, with heavy rain spreading to Oahu by Monday night. Flossie is expected to produce total rainfall amounts of 6 to 10 inches over the Big Island and Maui county, with isolated maximum amounts of 15 inches possible, mainly windward. Rainfall amounts of 4 to 8 inches are possible over Oahu, with isolated maximum amounts of 12 inches possible, mainly windward. This rainfall could cause life- threatening flash floods and mud slides, especially in the mountains.
Dangerously large surf will begin to impact east facing shores of the islands as early as tonight with the largest surf expected on Monday into Tuesday. Be aware that large surf can cause coastal road closures, even before the storm arrives. Please consult the latest hurricane local statement for information specific to your area.
UPDATED (7/28/2013 at 2:43 PM)
The National Weather Service forecasts strong winds to hit the Big Island near 6 a.m. Monday (July 29) with heavy rainfall arriving earlier than that.
The strong winds can send trees, branches and other objects into roadways, power lines and/or equipment. These winds can make driving difficult especially for high profile vehicles. Motorists should use caution while driving.
Power outages during strong winds can occur. Hawaii Electric Light Company (HELCO) reminds people that if you see a downed power line you should stay as far away as possible and report any damage or outages to their dispatch center at (808) 969-6666.
Consideration should be made regarding boarding windows due to possible flying debris.