Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD

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FLUS43 KFSD 201921
HWOFSD

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
221 PM CDT Sun Aug 20 2017

IAZ012>014-020>022-031-032-NEZ013-014-SDZ071-211930-
Sioux-O`Brien-Clay IA-Plymouth-Cherokee-Buena Vista-Woodbury-Ida-
Dixon-Dakota-Union-
221 PM CDT Sun Aug 20 2017

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

.DAY ONE...This Afternoon and Tonight

Scattered thunderstorms are expected to develop across the area
this evening, and continue through the overnight. Strong to severe
storms are possible, with hail to golf ball size as the primary
threat. Isolated wind gusts to 60 mph will also be possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional strong to severe storms will be possible during the
late afternoon and evening on Monday. These storms could produce
large hail and damaging winds. Locally heavy rain will also be
possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be possible between 9 pm and 3 am
tonight.

$$

IAZ001>003-MNZ071-072-080-081-089-090-097-098-SDZ040-055-056-061-
062-065>070-211930-
Lyon IA-Osceola-Dickinson-Lincoln MN-Lyon MN-Murray-Cottonwood-
Nobles-Jackson-Pipestone-Rock-Brookings-Lake-Moody-McCook-
Minnehaha-Hutchinson-Turner-Lincoln SD-Bon Homme-Yankton-Clay SD-
221 PM CDT Sun Aug 20 2017

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

.DAY ONE...This Afternoon and Tonight

Scattered thunderstorms are expected to develop across the area
by late evening, and continue through the overnight. Isolated
strong to severe storms are possible, with hail to half dollar
size as the primary threat.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Additional strong to severe storms will be possible Monday morning
into the afternoon, with large hail again the primary threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be possible between 10 pm and 3 am
tonight.

$$

SDZ038-039-050-052>054-057>060-063-064-211930-
Beadle-Kingsbury-Gregory-Jerauld-Sanborn-Miner-Brule-Aurora-
Davison-Hanson-Charles Mix-Douglas-
221 PM CDT Sun Aug 20 2017

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

.DAY ONE...This Afternoon and Tonight

Isolated thunderstorms will be possible tonight with nickel to
quarter size hail the main threats. Thunderstorms may move into
central South Dakota very late tonight with an isolated severe
storm possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There is a chance of thunderstorms Monday morning and afternoon.
A few of these storms could be severe with quarter size hail
the main threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$


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