Headline:
Severe Thunderstorm Warning issued May 17 at 7:34PM CDT until May 17 at 8:00PM CDT by NWS Sioux Falls SD
Event:
Severe Thunderstorm Warning
Urgency:
Immediate
Effective:
May 17, 2026 - 5:34pm
Expires:
May 17, 2026 - 6:00pm
Description:
At 734 PM CDT, a severe thunderstorm was located over Melvin, or 8
miles southeast of Sibley, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Ocheyedan around 740 PM CDT.
Instruction:
A Tornado Watch remains in effect until 1000 PM CDT for northwestern
Iowa.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
Area Description:
Osceola, IA
Forcast Office:
NWS Sioux Falls SD
Sender:
w-nws.webmaster@noaa.gov