Today is forecast to be Much Warmer than yesterday.
Nowcast as of 1:54 PM HST on November 11, 2009
Now
Isolated heavy showers will continue to develop over windward sections through 4 PM...mainly across south Hilo and puna districts. Rainfall rates over one inch per hour are possible... which may cause ponding of water and sheet flows across roadways.
Forecast for Big Island North and East
Updated: 10:52 am HST on November 11, 2009
Flash Flood Watch in effect through late Thursday night...
High surf advisory in effect until 6 PM HST Friday...
Rest of Today
Mostly cloudy with showers and thunderstorms likely. Locally heavy rainfall possible. Highs around 79 at the shore to around 67 at 4000 feet. Light winds. Chance of rain 70 percent.
Mostly cloudy. Occasional showers and thunderstorms in the evening...then showers and thunderstorms likely after midnight. Locally heavy rainfall possible. Lows around 68 at the shore to around 55 at 4000 feet. Light winds becoming west around 10 mph after midnight. Chance of rain 80 percent.
Thursday
Mostly cloudy with showers and thunderstorms likely. Locally heavy rainfall possible. Highs around 82 at the shore to around 69 at 4000 feet. Southeast winds around 10 mph. Chance of rain 70 percent.
Mostly cloudy with showers and thunderstorms likely. Locally heavy rainfall possible. Lows 51 to 73. East winds 10 to 15 mph shifting to the southeast after midnight. Chance of rain 70 percent.
Friday
Cloudy with occasional showers and slight chance of thunderstorms. Locally heavy rainfall possible. Highs 62 to 82. East winds 10 to 15 mph with higher gusts. Chance of rain 90 percent.
Mostly cloudy with occasional showers and slight chance of thunderstorms. Locally heavy rainfall possible. Lows 49 to 72. East winds 10 to 15 mph shifting to the west after midnight. Gusts up to 30 mph. Chance of rain 80 percent.
Saturday
Mostly cloudy with showers likely. Highs 61 to 80. East winds 10 to 15 mph with higher gusts. Chance of rain 70 percent.
Saturday Night
Mostly cloudy with showers likely. Lows 50 to 72. East winds 10 to 15 mph shifting to the west in the late evening and overnight. Gusts up to 30 mph. Chance of rain 70 percent.
Sunday
Mostly cloudy with occasional showers. Highs 61 to 80. East winds 10 to 15 mph with higher gusts. Chance of rain 80 percent.
Sunday Night
Mostly cloudy with occasional showers. Lows 50 to 72. East winds 10 to 15 mph shifting to the west in the late evening and overnight. Gusts up to 30 mph. Chance of rain 80 percent.
Monday
Mostly cloudy with occasional showers. Highs 61 to 80. East winds around 10 mph with higher gusts. Chance of rain 80 percent.
Monday Night
Mostly cloudy with showers likely. Lows 49 to 72. West winds around 10 mph and gusty. Chance of rain 70 percent.
Tuesday
Mostly cloudy with occasional showers. Highs 61 to 80. East winds around 10 mph with higher gusts. Chance of rain 80 percent.
... Flash Flood Watch remains in effect through late Thursday night...
The Flash Flood Watch continues for
* all Hawaiian islands.
* Through late Thursday night.
* Heavy showers and thunderstorms are expected to develop as a strong upper level low develops north of the islands today. The upper low will remain near the islands through at least Thursday... continuing the threat for flash flooding.
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.
