Severe Thunderstorms and Heavy Rainfall Across the Central Plains and Central Appalachians

Severe thunderstorms producing damaging winds, heavy rainfall, hail and possibly a few tornadoes will continue through tonight across portions of Kansas and Oklahoma. Heavy rainfall will persist across the Central Appalachians through tonight, potentially leading to areas of flooding. The severe weather and heavy rainfall threat will shift into the lower Great Lakes on Wednesday. Read More >

Lake Fly Hatch Seen on NWS Doppler Radar

The annual spring hatch of lake flies on Lake Winnebago was detected by the NWS Green Bay Doppler radar during the morning of May 8, 2009. Lake flies, which look like big mosquitoes, hatch each spring around this time. Department of Natural Resource officials report there are many millions of these flies that emerge from Lake Winnebago--potentially into the trillions. Once hatched, the lake flies live for up to two weeks before dying off.

Radar image of lake flies on Lake Winnebago. Click for larger image.

Animation from 7:05 am to 7:42 am CDT showing lake flies emerging from Lake Winnebago. Click for larger animation.

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Severe Thunderstorms and Heavy Rainfall Across the Central Plains and Central Appalachians

May 8, 2009 Lake Fly Hatch

Lake Fly Hatch Seen on NWS Doppler Radar