Mostly cloudy with a 20 percent chance of thunderstorms in the evening...then partly cloudy after midnight. Areas of fog late. Lows in the lower 60s. Northeast winds 5 to 10 mph.
Saturday
Partly sunny. Areas of fog in the early morning. A 20 percent chance of showers in the afternoon. Highs in the lower 80s. East winds 5 to 10 mph.
The National Weather Service in Sioux Falls has issued a
* Flood Warning for... Dickinson County in northwest Iowa northeastern O'Brien County in northwest Iowa northern Clay County in northwest Iowa Osceola County in northwest Iowa southeastern Nobles County in southwest Minnesota southern Jackson County in southwest Minnesota
* until noon CDT Friday
* at 1158 PM CDT... National Weather Service Doppler radar estimates and numerous reports of heavy rainfall from 2 to 4 inches across the area this evening has resulted in ongoing ponding and flooding of low lying areas. While thunderstorms have become more scattered late evening... additional storms are expected to develop between midnight and 2 am which will bring potential for locally an inch or two rainfall the remainder of the night... which will prolong the slow drainage effects from the heavy rainfall.
* Rainfall had created flooding of a Railroad underpass along Highway 59 and 60 in Worthington... with reported ponding across much of Dickinson County.
Precautionary/preparedness actions...
Be especially cautious at night when it is harder to recognize the dangers of flooding. If flash flooding is observed act quickly. Do not enter the water. Turn around and move up to higher ground to escape flood waters. Do not stay in areas subject to flooding when water begins rising.
Half dollar sized hail 4 miles NE of the intersection of U.S. Highway 18 and State Highway m27.
07/09/2009 0839 PM
6 miles W of Fostoria, Clay County.
Hail e1.00 inch, reported by broadcast media.
07/09/2009 0839 PM
2 miles N of Everly, Clay County.
Hail e1.75 inch, reported by broadcast media.
07/09/2009 0647 PM
2 miles W of Greenville, Clay County.
Hail e1.00 inch, reported by trained spotter.
07/09/2009 0624 PM
2 miles ENE of Webb, Clay County.
Hail e1.00 inch, reported by public.
Public Information Statement
Statement as of 9:55 am CDT on July 10, 2009
24 hour precipitation data in inches... for southeast South Dakota... southwest Minnesota... northwest Iowa... and northeast Nebraska ... Received by 9 am Friday July 10 2009.
Lakefield 3.53 Jackson Airport 2.78 Worthington coop 2.14 Worthington 1.4 NNE 2.13 Worthington Airport 1.59 Heron Lake 7e 1.24 Windom Airport 0.55 Luverne Airport 0.16 Slayton 0.12 Tracy Airport 0.10 Pipestone 0.10 Westbrook 1.4 NW 0.05 Marshall coop 0.02
... Northwest Iowa...
Le Mars coop 2.29 Lake Park 3sse 2.28 Ocheyedan 2.14 Le Mars 2.06 Sibley 1.82 Akron 1.77 Sheldon 1.67 Cleghorn 4.4n 1.62 Rock Valley 1.47 Sioux City 1.5nnw 1.45 Spencer Airport 1.39 Sioux City coop 1.25 Spencer 1ne 1.22 Sioux City 1.19 Sanborn 1.13 Holstein 1.10 Orange City 1.06 Everly 0.3wsw 0.91 Alton 0.78 Cherokee 1sse 0.71 Holly Springs 1nw 0.70 Hospers 3e 0.62