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Excessive Heat Watch

URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
1206 PM CDT Tue Jul 16 2019

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ050-063>071-
170115-
/O.CON.KFSD.EH.A.0001.190717T1800Z-190720T0000Z/
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Dixon-Dakota-Gregory-Charles Mix-Douglas-
Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Union-
1206 PM CDT Tue Jul 16 2019

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY
AFTERNOON THROUGH FRIDAY EVENING...

* HEAT INDEX VALUES...Up to 105 due to temperatures in the mid
  90s, and dewpoints in the lower 70s.

* TIMING...Monday evening and Wednesday through Friday.

* IMPACTS...The heat and humidity may cause heat stress during
  outdoor exertion or extended exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Excessive Heat Watch means that a prolonged period of hot
temperatures is expected. The combination of hot temperatures and
high humidity will combine to create a dangerous situation in
which heat illnesses are possible. Drink plenty of fluids...stay
in an air-conditioned room...stay out of the sun...and check up
on relatives and neighbors.

&&

$$




Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
355 AM CDT Tue Jul 16 2019

IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ050-063>071-
170900-
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Dixon-Dakota-Gregory-Charles Mix-Douglas-
Hutchinson-Turner-Lincoln-Bon Homme-Yankton-Union-
355 AM CDT Tue Jul 16 2019

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

.DAY ONE...Today and Tonight

Thunderstorms will move across parts of southeast South Dakota,
northeast Nebraska, and northwest Iowa this morning. Brief heavy
rain, small hail, and wind gusts to 40 mph are possible with the
strongest storms.

Additional thunderstorms are possible this afternoon mainly across
northwest Iowa. A few of these storms may be strong to severe,
capable of producing large hail and damaging wind.

Another round of strong to severe thunderstorms is possible late
this evening and into tonight, especially for areas along and
west of the James River Valley in southeast South Dakota. The
strongest storms will be capable of producing hail up to ping pong
size and wind gusts in excess of 70 mph.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Hot and humid conditions are expected Wednesday through Friday
with heat index values ranging from 100 to 105 degrees each
afternoon.

Periodic thunderstorms are possible Wednesday, Saturday night, as
well as Sunday night. It is too early to determine if any of
these storms will be severe, so continue to monitor your local
forecast.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required late this evening into tonight.

$$



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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