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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Sioux Falls SD
511 AM CDT Thu Jul 20 2017

IAZ001>003-012>014-022-MNZ071-072-080-081-089-090-097-098-
SDZ038>040-050-052>068-211015-
Lyon IA-Osceola-Dickinson-Sioux-O`Brien-Clay IA-Buena Vista-
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-
511 AM CDT Thu Jul 20 2017

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...Today and Tonight

Heat index values between 92 and 100 degrees are expected today.

Thunderstorms are expected across the region Thursday night.
Scattered strong to severe storms clusters may be possible
producing hail to the size of quarters and wind gusts to 60 mph.


.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Heat index values may approach 95 to 105 degrees on Thursday.

The risk of thunderstorms continues into Friday afternoon and
night. However, uncertainty remains on the exact location of this
thunderstorm activity or if additional storms could reform. Some
of this activity may also become strong to severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is possible after 4 pm.

$$

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
511 AM CDT Thu Jul 20 2017

IAZ020-021-031-032-NEZ013-014-SDZ069>071-211015-
Plymouth-Cherokee-Woodbury-Ida-Dixon-Dakota-Yankton-Clay SD-Union-
511 AM CDT Thu Jul 20 2017

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

.DAY ONE...Today and Tonight

Heat index values between 100 and 105 degrees are expected today.

Thunderstorms are expected across the region Thursday night.
Scattered strong to severe storms clusters may be possible
producing hail to the size of quarters and wind gusts to 60 mph.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Another hot and humid day is expected on Friday. Heat index
values may approach 100 to 105 degrees.

The risk of thunderstorms continues into Friday afternoon and
night. However, uncertainty remains on the exact location of this
thunderstorm activity. Some of this activity may also become
strong to severe.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be possible after 9 pm.

$$

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
1035 AM CDT Thu Jul 20 2017

IAZ043-NEZ015-018-030>033-042-043-210545-
Monona-Thurston-Wayne-Boone-Madison-Stanton-Cuming-Platte-Colfax-
1035 AM CDT Thu Jul 20 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
IOWA AND NORTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

The combination of hot temperatures and high humidity will result
in heat index values ranging from 100 to 105 this afternoon into
this evening.

Isolated strong thunderstorms will also be possible tonight as a
weak front remains stalled in the areas across portions of
northeast Nebraska into west- central Iowa. Gusty winds, small
hail, and locally heavy rainfall will be the main hazards.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

The excessive heat is expected to continue into Friday with
afternoon heat indices again between 100 and 105 degrees.

There will be a chance of thunderstorms for parts of the area
from Friday night, then again Tuesday into Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
1035 AM CDT Thu Jul 20 2017

NEZ011-012-016-017-210545-
Knox-Cedar-Antelope-Pierce-
1035 AM CDT Thu Jul 20 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST
NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

The combination of hot temperatures and high humidity will result
in heat index values around 100 degrees this afternoon into this
evening.

Isolated strong thunderstorms will also be possible tonight as a
weak front remains stalled in the areas.  across portions of
northeast Nebraska into west- central Iowa. Gusty winds, small
hail, and locally heavy rainfall will be the main hazards.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

The excessive heat is expected to continue into Friday with
afternoon heat indices again between 100 and 105 degrees.

There will be a chance of thunderstorms for parts of the area
from Friday night, then again Tuesday into Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
1035 AM CDT Thu Jul 20 2017

IAZ055-056-069-079-080-090-091-NEZ034-044-045-050>053-065>068-078-
088>093-210545-
Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-Page-Burt-
Dodge-Washington-Butler-Saunders-Douglas-Sarpy-Seward-Lancaster-
Cass-Otoe-Saline-Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson-
1035 AM CDT Thu Jul 20 2017

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST
IOWA...EAST CENTRAL NEBRASKA AND SOUTHEAST NEBRASKA.

.DAY ONE...TODAY AND TONIGHT

The combination of hot temperatures and high humidity will result
in heat index values ranging from 105 to 115 degrees this
afternoon and evening. An excessive heat warning remains in
effect.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

The excessive heat will continue into Friday with afternoon heat
indices again from 105 to 115 degrees.

There will be a chance of thunderstorms for parts of the area
from Friday night into Saturday night, and then again Tuesday
into Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service North Platte NE
859 AM CDT Thu Jul 20 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-211400-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-
Grant-Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-
Logan-Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
859 AM CDT Thu Jul 20 2017 /759 AM MDT Thu Jul 20 2017/

This Hazardous Weather Outlook is for portions of western and
north central Nebraska.

.DAY ONE...TODAY AND TONIGHT.

Heat index values will peak between 100 and 105 degrees across
Hayes and Frontier Counties this afternoon and early evening
where a heat advisory is in effect.

Isolated strong to briefly severe thunderstorms are possible
today. The best window for thunderstorms is expected to be mid
afternoon through the evening, mainly west and north of a line
from Lewellen to Hyannis, to Taylor. Damaging winds and large
hail
are the main hazards, locally heavy rainfall will be possible as
well.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

Heat index values are likely to reach between 100 to 105 degrees
Friday across parts of southwest and north central Nebraska.
Additional heat advisory may be needed Friday.

Outside of northwest Nebraska, isolated strong to briefly severe
thunderstorms will be possible Friday afternoon and evening.
Damaging winds and hail are the main hazards.

Isolated strong thunderstorms will be possible along and south
of the Interstate 80 corridor Saturday afternoon and evening.
Strong wind gusts and small hail are possible.

The risk of strong to severe thunderstorms is low at this time
beyond Saturday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

Get your weather, hydrological, and climate information at
http://www.weather.gov/northplatte

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
557 AM MDT Thu Jul 20 2017

SDZ014-032-042>044-046-047-049-211300-
Ziebach-Haakon-Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
557 AM MDT Thu Jul 20 2017 /657 AM CDT Thu Jul 20 2017/

This Hazardous weather outlook is for portions of south central
South Dakota...and western South Dakota.

.DAY ONE...Today and Tonight

Isolated to scattered showers and thunderstorms will move across
the South Dakota plains this evening and overnight. A few storms
will be strong to severe with large hail and damaging winds
possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

After a quiet weekend, an active weather pattern will return
early next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

$$

Hazardous Weather Outlook
National Weather Service Des Moines IA
440 AM CDT Thu Jul 20 2017

IAZ004>007-015>017-023>028-036>039-210945-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Hamilton-Hardin-
Grundy-Black Hawk-
440 AM CDT Thu Jul 20 2017

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

Thunderstorms are likely tonight after midnight. A few severe
storms and locally heavy rainfall may occur.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Additional thunderstorms are possible Friday and Friday night then
again by Wednesday. A few severe storms and locally heavy
rainfall are possible Friday and Friday night..

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed at times tonight and Friday.

$$

Hazardous Weather Outlook
National Weather Service Des Moines IA
440 AM CDT Thu Jul 20 2017

IAZ033>035-044>050-210945-
Sac-Calhoun-Webster-Crawford-Carroll-Greene-Boone-Story-Marshall-
Tama-
440 AM CDT Thu Jul 20 2017

This Hazardous Weather Outlook is for portions of central Iowa.

.DAY ONE...Today and tonight

A Heat Advisory is in effect for the area through Saturday.
Please refer to the National Weather Service website at
weather.gov/desmoines for further details.

Scattered thunderstorms are possible tonight. A severe storm may
occur.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

A Heat Advisory remains in effect for the area through Saturday.
Please refer to the National Weather Service website at
weather.gov/desmoines for further details.

Thunderstorms are possible Friday night and again Wednesday. A few
severe storms are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not likely at this time.

$$

Hazardous Weather Outlook
National Weather Service Aberdeen SD
419 AM CDT Thu Jul 20 2017

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-210930-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-
Roberts-Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-
Codington-Grant-Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-
Lyman-Buffalo-
419 AM CDT Thu Jul 20 2017 /319 AM MDT Thu Jul 20 2017/

This Hazardous Weather Outlook is for portions of west central
Minnesota, central South Dakota, north central South Dakota, and
northeast South Dakota.

.DAY ONE...Today and Tonight

Thunderstorms are possible across the region this evening and
through the overnight. A few storms could be on the strong side
with hail and gusty winds.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Strong to severe storms are possible Friday afternoon and evening
across eastern South Dakota and western Minnesota. Large hail and
strong winds are possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

$$
TMT

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
349 AM CDT Thu Jul 20 2017

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
211300-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
349 AM CDT Thu Jul 20 2017

This Hazardous Weather Outlook is for portions of central and
southern Minnesota...and west central Wisconsin.

.DAY ONE...Today and Tonight

There is a chance of thunderstorms overnight tonight with a
marginal risk of severe weather, mainly south of the Minnesota
River Valley. Large hail and damaging wind gusts would be the
primary concern with any severe storms, along with locally heavy
rainfall.

Warm and humid conditions today will push heat indices into the
lower 90s over much of the area, particularly south of Interstate
94. Those working outdoors or involved in strenuous outdoor
activities should ensure they stay hydrated and take periodic
breaks.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Thunderstorms are possible Friday and Saturday, with a slight risk
of severe storms across most of the area. Large hail and damaging
wind gusts are the primary expected hazards. Locally heavy
rainfall is also a concern, particularly south of Interstate 94.

Thunderstorm chances return for Tuesday into Wednesday, but
widespread severe weather is not anticipated.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation will not be needed through tonight.

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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