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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Sioux Falls SD
656 PM CDT Thu Sep 21 2017

IAZ001>003-012>014-020>022-031-032-MNZ080-081-089-090-098-NEZ013-
014-SDZ067-070-071-230000-
Lyon IA-Osceola-Dickinson-Sioux-O`Brien-Clay IA-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Murray-Cottonwood-Nobles-Jackson-Rock-
Dixon-Dakota-Lincoln SD-Clay SD-Union-
656 PM CDT Thu Sep 21 2017

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

.DAY ONE...Tonight

No hazardous weather is expected today and tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

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

$$

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
955 PM CDT Thu Sep 21 2017

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
221800-
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-
955 PM CDT Thu Sep 21 2017

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

.DAY ONE...Tonight

Scattered thunderstorms can be expected tonight across central
Minnesota into western Wisconsin, mainly north of the Interstate
94 corridor. There is a Marginal Risk of severe weather with this
activity. The main hazard will be large hail.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Periodic chances for thunderstorms exist from Friday through
Monday night. There is a Slight Risk of severe thunderstorms
Friday evening in western Minnesota, surrounded by a Marginal
Risk of severe thunderstorms into central Minnesota. The main
hazards are large hail and damaging winds.

Repeated rounds of thunderstorms this weekend in western
Minnesota will also lead to an increased risk for flooding.

Hot and humid conditions are expected Friday with peak afternoon
heat indices between 95 and 100 expected. Hot and humid
conditions with heat indices into the mid 90s are expected again
Saturday from southeast Minnesota into western Wisconsin. Heat
illnesses may occur, primarily for those who are active outdoors.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation is not expected to be necessary tonight
but may be needed Friday evening.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service North Platte NE
800 PM CDT Thu Sep 21 2017

NEZ004>010-022>029-035>038-056>059-069>071-094-230100-
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-
800 PM CDT Thu Sep 21 2017 /700 PM MDT Thu Sep 21 2017/

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

.DAY ONE...TONIGHT.

Hazardous weather is not expected at this time.

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

Fire weather concerns are elevated Friday across portions of
southwest Nebraska as warm and breezy conditions continue.

A strong cold front will begin to cross the Sandhills on Friday,
setting the stage for thunderstorms. Some storms may be strong or
severe during the late afternoon and evening hour. Damaging wind
is the primary threat, although large hail, very heavy rain, and
frequent lightning are also possible.

The cold front will become stationary over the weekend, allowing
several rounds of precipitation to overspread the region. The
rain will be heavy at times. The potential exists for rainfall
totals exceeding three inches for areas east of Highway 83 by
Monday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

&&

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

$$

ET

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
405 PM CDT Thu Sep 21 2017

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-221115-
Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-
Page-Knox-Cedar-Thurston-Antelope-Pierce-Wayne-Boone-Madison-
Stanton-Cuming-Burt-Platte-Colfax-Dodge-Washington-Butler-
Saunders-Douglas-Sarpy-Seward-Lancaster-Cass-Otoe-Saline-
Jefferson-Gage-Johnson-Nemaha-Pawnee-Richardson-
405 PM CDT Thu Sep 21 2017

This Hazardous Weather Outlook is for portions of southwest
Iowa...west central Iowa...east central Nebraska...northeast
Nebraska and southeast Nebraska.

.DAY ONE...Tonight and Friday

The heat index will range from 97 to 103 across the area on
Friday.

.DAYS TWO THROUGH SEVEN...Friday night through Thursday

Heavy rainfall is possible this weekend into early next week as a
slow moving cold front tracks across the area. Several rounds of
showers and thunderstorms are expected along this front as it
progresses from north central Nebraska on Saturday to southeast
Nebraska and southwest Iowa by Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Aberdeen SD
517 AM CDT Thu Sep 21 2017

MNZ039-046-SDZ005>008-010-011-017>023-036-037-051-221030-
Traverse-Big Stone-McPherson-Brown-Marshall-Roberts-Edmunds-Day-
Faulk-Spink-Clark-Codington-Grant-Hamlin-Deuel-Hyde-Hand-Buffalo-
517 AM CDT Thu Sep 21 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

Showers and thunderstorms will return to far northeastern South
Dakota and west central Minnesota tonight, mainly northeast of a
line from Aberdeen to Watertown. A few of these storms could
become strong to severe, with damaging winds and large hail.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

An elongated area of low pressure will remain nearly steady across
eastern South Dakota and western Minnesota Friday into early
Saturday. Showers and thunderstorms are expected along and ahead
of this boundary late Friday afternoon into Friday night. A few of
these storms could become strong to severe. Heavy rain, damaging
winds, and large hail will be the primary threats.

A extended period of light to, at times, heavy rain will move
across far eastern South Dakota and west central Minnesota. Total
rainfall of 2 to around 4 inches will be possible early Friday
morning into Monday. The highest amounts are expected southeast of
a line from Watertown to Ortonville.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed over far northeastern South
Dakota and west central Minnesota tonight. Wind, hail, and other
reports can be relayed to the Aberdeen National Weather Service by
calling, or through our Facebook and Twitter pages.

$$

KF

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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