Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD

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FLUS43 KFSD 211058
HWOFSD

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
558 AM CDT Thu Sep 21 2017

MNZ071-072-097-SDZ038>040-050-052>066-068-069-221100-
Lincoln MN-Lyon MN-Pipestone-Beadle-Kingsbury-Brookings-Gregory-
Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-
McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-
Yankton-
558 AM CDT Thu Sep 21 2017

This Hazardous Weather Outlook is for portions of southwest
Minnesota, central South Dakota, east central South Dakota, south
central South Dakota, and southeast South Dakota.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Rainfall chances increase by later Friday and continue at times
into early next week, with the threat for periods of heavy
rainfall. Potentially totaling several inches of rain for some
areas over the three day period from Friday night through Monday
night, there is a threat for significant ponding of water and some
flash flooding.

Otherwise, as thunderstorms develop very late Friday afternoon
and evening from south central to east central SD, and a few
storms could be strong to severe with large hail, damaging wind,
and even a tornado. After this, location of the severe weather
threat both Saturday and Sunday remains difficult to determine,
dependent on where the the boundary sets up.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

IAZ001>003-012>014-020>022-031-032-MNZ080-081-089-090-098-NEZ013-
014-SDZ067-070-071-221100-
Lyon IA-Osceola-Dickinson-Sioux-O`Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Murray-Cottonwood-Nobles-Jackson-Rock-
Dixon-Dakota-Lincoln SD-Clay SD-Union-
558 AM CDT Thu Sep 21 2017

This Hazardous Weather Outlook is for portions of northwest Iowa,
west central Iowa, southwest Minnesota, northeast Nebraska, and
southeast South Dakota.

.DAY ONE...Today and Tonight

No hazardous weather is expected today and tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorm risks will return by late Friday and continue at
times into early next week. At this time, while a widespread
severe weather risk is unlikely, an isolated strong to severe
storms appears possible Saturday or Sunday, depending on where
the boundary sets up. In addition, some areas of heavy rainfall
are likely, along with a risk for significant ponding or flash
flooding, especially near and west of a Windom to Sioux City line.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$


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