Today is forecast to be nearly the same temperature as yesterday.
Nowcast as of 10:37 am HST on November 14, 2009
Now
Flash Flood Watch in effect... scattered heavy showers with embedded thunderstorms continue to affect the islands of Kauai and Oahu...and adjacent coastal waters. The strongest thunderstorms are producing dangerous cloud to ground lightning...along with heavy downpours that will reduce visibilities for some areas making driving difficult. Additionally...these heavy showers will also cause ponding on roadways and in poor drainage areas. The possibility of heavy showers and thunderstorms will continue through today.
Forecast for Olomana
Updated: 8:29 am HST on November 14, 2009
High surf warning in effect until 6 PM HST this evening...
Flash Flood Watch in effect until 6 PM HST this evening...
Rest of Today
Mostly cloudy. Occasional showers and thunderstorms until mid morning...then showers and thunderstorms likely in the afternoon. Locally heavy rainfall possible. Highs around 80. East winds 15 to 20 mph. Chance of rain 90 percent.
Mostly cloudy. Showers likely and chance of thunderstorms in the evening...then showers likely and slight chance of thunderstorms after midnight. Lows around 72. East winds 15 to 20 mph. Chance of rain 70 percent.
Sunday
Partly sunny with showers likely. Highs around 81. East winds 15 to 20 mph. Chance of rain 70 percent.
The National Weather Service in Honolulu has extended the
* Flood Advisory for the island of Oahu in Honolulu County
* until 115 PM HST
* at 1010 am HST... radar showed areas of moderate to heavy rain moving over the island pf Oahu from the southeast. Rainfall rates near 2 inches per hour will accompany the heaviest showers... resulting in nuisance flooding across many areas of Oahu.
Precautionary/preparedness actions...
Stay away from streams... drainage ditches and low lying areas prone to flooding.
Rainfall and runoff will also cause hazardous driving conditions due to ponding... reduced visibility and poor braking action.
Do not cross fast flowing or rising water in your vehicle or on foot. Turn around... Don/T drown.
A Flash Flood Watch remains in effect.
This advisory may need to be extended beyond 115 PM HST if heavy rain persists.
... Flash Flood Watch now in effect through this afternoon...
The Flash Flood Watch is now in effect for
* all Hawaiian islands.
* Through this afternoon.
* Nearly stationary upper level low pressure west of the state will maintain an unstable atmosphere. Combined with sufficient moisture moving in from the east-southeast the threat of flash flooding will continue through this afternoon.
* Precautionary/preparedness actions...
A Flash Flood Watch means that conditions may develop that lead to flash flooding. Prepare now for the possibility of very heavy rainfall that could cause flash flooding.
Campers and hikers should pay particular attention to later forecasts. Stay away from creeks... streams... and other flood prone areas. Remember that it does not have to be raining where you are for flash flooding to occur.
Powell
Record Report
Statement as of 2:47 am HST on November 14, 2009
... Record daily maximum rainfall set at Hilo hi...
A record rainfall of 4.46 inches was set at Hilo hi yesterday. This breaks the old record of 1.87 set in 1996.