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Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Des Moines IA
357 AM CDT Tue Sep 17 2019

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-
081>086-092>097-181100-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-
Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-
Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-
Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-
Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-
Appanoose-Davis-
357 AM CDT Tue Sep 17 2019

This Hazardous Weather Outlook is for much of central Iowa.

.DAY ONE...Today and tonight

Unseasonal heat and humidity is expected again today with peak
afternoon heat indices in the lower to middle 90s.

Thunderstorms are also likely north and west tonight. A few
strong to severe hail or wind storms are possible. Locally heavy
rains may occur as well.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorm chances continue off and on Wednesday into the
weekend, especially Wednesday Night. A few strong to severe wind
or hail storms are possible through the work week, and the severe
potential toward the weekend will be better determined in the
coming days. Isolated heavy rain will be possible through the week
and may lead to localized flash flooding.

.SPOTTER INFORMATION STATEMENT...

The potential for spotter activation is low through much of the
work week.

$$

Small

Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
447 AM CDT Tue Sep 17 2019

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-181000-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
447 AM CDT Tue Sep 17 2019

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

Heat and humidity today will be high for this time of year. Look
for heat indices peaking in the lower 90s for portions of the
area today. Highest values are expected in areas west of a line
from Cedar Rapids to Burlington to Macomb.

The Pecatonica and Rock Rivers are experiencing flooding. Please
see the latest Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

On Wednesday, peak heat indices are forecast to reach the low 90s
along and south of a line from Independence, Iowa to the Quad
Cities to Galva, Illinois. A few locations could reach the mid
90s for afternoon heat indices in the counties south of Interstate
80. This is very unusual for this time of year.

Scattered thunderstorms are possible late Wednesday night into
Thursday morning. The best chances are northwest of a line from
Galena, Illinois to Williamsburg, Iowa. The primary risks are
lightning and localized heavy rain.

Another round of showers and thunderstorms is possible Saturday
into Sunday, which could bring heavy rain to parts of the outlook
area. It is too early to determine the risk for severe weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

Brooks/Uttech

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
432 AM CDT Tue Sep 17 2019

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-180945-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
432 AM CDT Tue Sep 17 2019

This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.

.DAY ONE...Today and Tonight

 Isolated afternoon thunderstorms are possible from northeastern into
 central Missouri. No severe weather is expected.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

 Multiple rounds of thunderstorms are possible Saturday into Sunday.
 There is potential for heavy rain and flooding with this activity.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

$$

Hazardous Weather Outlook
National Weather Service Sioux Falls SD
418 AM CDT Tue Sep 17 2019

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-180930-
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson-
Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory-
Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook-
Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-
Union-
418 AM CDT Tue Sep 17 2019

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

.DAY ONE...Today and tonight.

Flooding resulting from heavy rainfall last week will continue to be
an ongoing concern. Moderate to major river flooding is expected to
continue in the James, Vermillion and Big Sioux Rivers for several
days.

Scattered to numerous storms are expected tonight into early
Wednesday, especially in areas east of Interstate 29. The risk of
severe weather is low, however, an isolated storm may become strong
enough to produce large hail or wind gusts in excess of 50 mph.
Locally heavy rainfall will also be possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Additional storms are possible Wednesday night, and again Friday
into early Saturday. These storms may produce locally heavy rainfall,
which could exacerbate ongoing flooding. Isolated storms Friday
afternoon and evening may also become strong to severe, though the
favored area and extent of the severe weather risk is still
uncertain.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
404 AM CDT Tue Sep 17 2019

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-180915-
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-
404 AM CDT Tue Sep 17 2019

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

.DAY ONE...Today and tonight.

Minor flooding will continue along the Missouri River above Lewis
and Clark Lake, from near Decatur to Blair, and from Plattsmouth
downstream into Missouri.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Flooding will become more widespread along the Missouri River this
week as flood waters from South Dakota drain southward. A crest in
the flood waters is expected near Decatur Wednesday into Thursday,
with crests further south occurring through Sunday. Impacts are
possible along portions of Interstates 29 and 680 in western Iowa.
Low lying areas along the river will experience additional flooding.
Though impacts along the river may be significant, flooding should
not reach the levels experienced earlier this year.

Rain and thunderstorm chances remain in the forecast from this evening
into the weekend which will add additional water to the rivers. The
potential for heavy rain continues to increase, especially Wednesday
night into Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
404 AM CDT Tue Sep 17 2019

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
180900-
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-
404 AM CDT Tue Sep 17 2019

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

.DAY ONE...Today and Tonight

Scattered thunderstorms will persist through early afternoon over
western and central Minnesota. Severe thunderstorms are not
expected through this afternoon.

Additional thunderstorms are expected to develop this evening over
western Minnesota and steadily progress eastward through the
overnight hours. There is a Marginal Risk of severe thunderstorms
tonight for much of western and central Minnesota with the main
hazards being large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Isolated to scattered thunderstorms are possible Wednesday through
Sunday. At this time, there is a Slight Risk of severe
thunderstorms in western Minnesota on Friday with the main
hazards being large hail and damaging winds.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotter activation may be needed late tonight into early
Wednesday morning.

$$

JPC

Hazardous Weather Outlook
National Weather Service La Crosse WI
341 AM CDT Tue Sep 17 2019

IAZ008-009-018-019-MNZ079-086>088-094-095-WIZ017-029-032>034-
181200-
Mitchell-Howard-Floyd-Chickasaw-Wabasha-Dodge-Olmsted-Winona-
Mower-Fillmore-Taylor-Clark-Buffalo-Trempealeau-Jackson-
341 AM CDT Tue Sep 17 2019

This Hazardous Weather Outlook is for portions of northeast
Iowa, southeast Minnesota, and central Wisconsin.

.DAY ONE...Today and Tonight

Chances for thunderstorms will increase late tonight, mainly after
3 AM. The main risk with any storms will be lightning.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorm chances will continue Wednesday and through the
weekend. Storms could produce localized very heavy rainfall and
possibly some flooding, particularly in those areas which received
heavy rains over the past week.

.SPOTTER INFORMATION STATEMENT...

No action needed but rainfall reports through the weekend would be
appreciated.

.EMERGENCY MANAGEMENT COORDINATION...

No webinar is scheduled.

$$

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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