Flash Flood Watch in effect from 4 PM CDT this afternoon through late tonight...
Rest of Today Partly sunny with chance of thunderstorms...especially late. Some thunderstorms may be severe or produce heavy rainfall. Highs in the upper 70s. South winds 15 to 20 mph. Chance of rain 50 percent.
Tonight Mostly cloudy. Chance of thunderstorms in the evening...then slight chance of thunderstorms after midnight. Some thunderstorms may be severe with heavy rainfall in the evening. Lows in the mid 60s. Southeast winds 5 to 15 mph. Chance of rain 50 percent.
Friday Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the upper 70s. Northeast winds 5 to 10 mph becoming north in the afternoon.
Friday Night Mostly cloudy in the evening...then becoming partly cloudy. Lows in the upper 50s. North winds 5 to 10 mph.
Saturday Partly cloudy. Highs in the upper 70s. North winds 5 to 10 mph becoming east in the afternoon.
Saturday Night Partly cloudy. Lows in the upper 50s.
Sunday Partly sunny. Highs in the lower 80s.
Sunday Night Mostly cloudy with a 40 percent chance of thunderstorms. Lows around 60.
Monday Partly sunny. Highs in the lower 80s.
Monday Night Mostly cloudy with a 30 percent chance of thunderstorms. Lows in the lower 60s.
Tuesday Mostly cloudy with a 30 percent chance of thunderstorms. Highs in the mid 80s.
Tuesday Night Mostly cloudy with a 40 percent chance of thunderstorms. Lows around 60.
Wednesday Partly sunny with a 20 percent chance of thunderstorms. Highs in the upper 70s.
Flash Flood Watch Statement Issued: 12:07 PM CDT on July 9, 2009 ... Flash Flood Watch in effect from 4 PM CDT this afternoon through late tonight...
The National Weather Service in Sioux Falls has issued a
* Flash Flood Watch for portions of southwest Minnesota and South Dakota... including the following areas... in southwest Minnesota... Cottonwood... Jackson... Lincoln... Lyon... Murray... Nobles... Pipestone and rock. In South Dakota... Bon Homme... Brookings... Hutchinson... Lake... McCook... Minnehaha... Moody and Turner.
* From 4 PM CDT this afternoon through late tonight
* locally heavy rainfall of 1 to 3 inches is possible late this afternoon and overnight. Rainfall rates of 2 to 4 inches per hour are also possible... dropping an inch of rain or more in 15 to 30 minutes.
* Areas that have received heavy rains in the past 3 to 10 days could see flash flooding on creeks and streams with these additional rains... and any urbanized areas that receive the heaviest rainfall rates could see widespread flooding of streets and underpasses.
Precautionary/preparedness actions...
A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action should flash flood warnings be issued.