Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD

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FLUS43 KFSD 221803
HWOFSD

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
103 PM CDT Fri Sep 22 2017

SDZ038>040-050-052>055-057>061-063>065-068-231815-
Beadle-Kingsbury-Brookings-Gregory-Jerauld-Sanborn-Miner-Lake-
Brule-Aurora-Davison-Hanson-McCook-Charles Mix-Douglas-Hutchinson-
Bon Homme-
103 PM CDT Fri Sep 22 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

There is a marginal chance for severe weather this evening across
southeastern South Dakota and parts of southwest Minnesota. Hail
up to half dollar size and wind gusts up to 60 mph are possible
with any severe storms that develop. Additionally, an isolated
tornado cannot be ruled out.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Rainfall chances will continue into early next week, with the
threat for periods of heavy rainfall beginning early Saturday.
Rainfall could potentially total several inches of rain for some
areas over the three day period ending Monday night. Accordingly,
there is a threat for significant ponding of water and some flash
flooding.

Some severe weather is possible Saturday and Sunday. However, location
of the severe weather threat both Saturday and Sunday remains
difficult to determine, dependent on exactly where the front sets
up.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ056-062-066-067-069>071-231815-
Lyon IA-Osceola-Dickinson-Sioux-O`Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln MN-Lyon MN-Murray-Cottonwood-
Nobles-Jackson-Pipestone-Rock-Dixon-Dakota-Moody-Minnehaha-Turner-
Lincoln SD-Yankton-Clay SD-Union-
103 PM CDT Fri Sep 22 2017

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

.DAY ONE...This Afternoon and Tonight

Heat and humidity will create heat indices of 95 to 100 degrees
through the afternoon into the early evening hours.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Thunderstorm risks will return by Saturday and continue at times
into early next week. At this time, while a widespread severe
weather risk is unlikely, an isolated strong to severe storm
appears possible Saturday or Sunday, depending on exactly where
the front 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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