Hazardous Weather Outlook
Issued by NWS Sioux Falls, SD

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FLUS43 KFSD 122024
HWOFSD

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
324 PM CDT Thu Apr 12 2018

IAZ001>003-MNZ071-072-080-081-089-090-097-098-SDZ038>040-050-
052>070-132030-
Lyon IA-Osceola-Dickinson-Lincoln MN-Lyon MN-Murray-Cottonwood-
Nobles-Jackson-Pipestone-Rock-Beadle-Kingsbury-Brookings-Gregory-
Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-
McCook-Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Lincoln SD-
Bon Homme-Yankton-Clay SD-
324 PM CDT Thu Apr 12 2018

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

.DAY ONE...This Afternoon and Tonight

Scattered thunderstorms will move across the region Thursday night
into Friday morning. A strong storm or two with small hail and
locally heavy rain is possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Rain will continue into Friday, however by Friday afternoon,
colder air will begin to move into the region and this will cause
rain to change to snow. The risk for heavy snow continues to grow
for the outlook area. In addition, there will be a possibility of
light ice accumulations over portions of southwestern MN on
Friday night.

Along with the heavy snow potential, strong winds in excess of 30
mph with gusts up to 50 mph Friday night and Saturday are expected.
A blizzard warning is in effect for the area Friday afternoon
into Saturday.

The combination of snow and wind will create significant impacts
including infrastructure and travel. The time to prepare for this
blizzard is now! Travel maybe extremely difficult to impossible
Friday night into Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected, but any reports will be
appreciated.

$$

IAZ012>014-020>022-031-032-NEZ013-014-SDZ071-132030-
Sioux-O`Brien-Clay IA-Plymouth-Cherokee-Buena Vista-Woodbury-Ida-
Dixon-Dakota-Union-
324 PM CDT Thu Apr 12 2018

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 will move across the region early Friday
morning. These storms will be capable of producing large hail up
to the size of golf balls.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Showers and thunderstorms will continue to be possible throughout
the day on Friday. Cooler air will work into the region on Friday
evening. As cooler air works into the region late Friday evening
into Saturday morning, precipitation will transition from rain to
snow.

Along with the heavy snow potential will be strong winds in
excess of 30 mph with gusts up to 50 mph Friday night and
Saturday.

The combination of snow and wind may lead to significant impacts
to the region including impacts to infrastructure and travel. The
time to prepare for this winter storm is now! Consider delaying
or canceling travel plans Friday night and Saturday and continue
to monitor your local forecast.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible after midnight Friday morning.

$$



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