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Hazardous Weather Outlook


Hazardous Weather Outlook...UPDATED
National Weather Service North Platte NE
320 PM CDT Mon May 17 2021

NEZ004>010-022>029-035>038-056>059-069>071-094-182030-
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-
320 PM CDT Mon May 17 2021 /220 PM MDT Mon May 17 2021/

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

.DAY ONE...TONIGHT.

Recent wet weather across parts of western and north central
Nebraska will present the potential for localized flooding.
Slow moving heavy showers and thunderstorms are possible across
the southern Sandhills and southwest Nebraska this evening and
overnight. This may result in localized flooding in some areas.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

Additional showers and thunderstorms Tuesday and Wednesday will
continue to present the potential for localized flooding.

Warmer weather returns to the region Thursday through Sunday and
with that, the chance for isolated to scattered thunderstorms
which could become strong or severe at times. It is too early to
make an accurate forecast of the storm activity other than it
would be most likely to occur late in the day or at 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

$$

Roberg

Hazardous Weather Outlook
National Weather Service Cheyenne WY
248 PM MDT Mon May 17 2021

NEZ002-003-095-096-WYZ101>108-182100-
Dawes County-Box Butte County-Northern Sioux County-
Southern Sioux County-Converse County Lower Elevations-
Niobrara County-North Laramie Range-
Ferris/Seminoe/Shirley Mountains-Shirley Basin-
Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-
248 PM MDT Mon May 17 2021

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A few thunderstorms will be possible this afternoon and early this
evening. The main threat will be brief heavy downpours and small
hail.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

A few isolated thunderstorms cannot be ruled out on Tuesday and
Wednesday, but no severe weather is expected at this time.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Cheyenne WY
248 PM MDT Mon May 17 2021

NEZ019>021-054-055-WYZ109>113-115>119-182100-
Scotts Bluff County-Banner County-Morrill County-Kimball County-
Cheyenne County-Central Carbon County-North Snowy Range Foothills-
Southwest Carbon County-Sierra Madre Range-
Upper North Platte River Basin-Laramie Valley-South Laramie Range-
South Laramie Range Foothills-Central Laramie County-
East Laramie County-
248 PM MDT Mon May 17 2021

This hazardous weather outlook is for portions of panhandle
Nebraska...south central Wyoming and southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Scattered thunderstorms will also be possible this afternoon and
this evening. These thunderstorms may produce some brief downpours
along with small hail. Otherwise, no severe weather is expected
at this time. Areas of dense fog are possible tonight into
tomorrow morning on the I-80 summit and foothills, with visibility
dropping below one quarter of a mile at times.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

Areas of dense fog are possible tonight into tomorrow morning on
the I-80 summit and foothills, with visibility dropping below one
quarter of a mile at times. A few thunderstorms may also develop on Tuesday and Wednesday
afternoon/evening, but no severe weather is expected at this time.

.Spotter information statement...

Spotter activation will not be needed.

$$

Hazardous Weather Outlook
National Weather Service Hastings NE
334 PM CDT Mon May 17 2021

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
181200-
Phillips-Smith-Jewell-Rooks-Osborne-Mitchell-Valley-Greeley-Nance-
Sherman-Howard-Merrick-Polk-Dawson-Buffalo-Hall-Hamilton-York-
Gosper-Phelps-Kearney-Adams-Clay-Fillmore-Furnas-Harlan-Franklin-
Webster-Nuckolls-Thayer-
334 PM CDT Mon May 17 2021

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

.DAY ONE...Late This Afternoon and Tonight.

Flood Warnings remain in effect for portions of Rooks and Osborne
Counties in north central Kansas. Please see the flood warning
messages for further information.

Isolated to scattered thunderstorms remain possible through
tonight. While severe weather is not expected, any heavy
rainfall on saturated ground could cause flooding issues.

Late tonight into early Tuesday morning, there is the potential
for patchy fog across the outlook area. Spots with visibility near
one mile or less is not out of the question.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Flood Warnings remain in effect for portions of Rooks and Osborne
Counties in north central Kansas into Tuesday. Please see the
flood warning messages for further information.

Intermittent chances for showers and thunderstorms exist across
the outlook area through this week and up coming weekend. Be sure
to stay up to date on the latest forecasts regarding the
potential for any severe weather or flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

&&

More information may be obtained at the following web page:
   https://www.weather.gov/hastings

$$

Hazardous Weather Outlook
National Weather Service Omaha/Valley NE
315 PM CDT Mon May 17 2021

IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-181015-
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-
315 PM CDT Mon May 17 2021

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 Tuesday

Isolated thunderstorms could occur into this evening, mainly in
parts of southeast Nebraska and southwest Iowa. The chance of any
severe storms is low. Areas of fog are expected tonight, and
patchy dense fog is possible.

.DAYS TWO THROUGH SEVEN...Tuesday night through Monday

Periodic thunderstorm chances remain in the forecast through much
of the upcoming week. However, the potential for organized severe
weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation should not be needed tonight or Tuesday.

$$

Hazardous Weather Outlook
National Weather Service Goodland KS
1130 AM MDT Mon May 17 2021

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-181730-
Yuma-Kit Carson-Cheyenne-Rawlins-Decatur-Norton-Sherman-Thomas-
Sheridan-Graham-Wallace-Logan-Gove-Greeley-Wichita-Dundy-Hitchcock-
Red Willow-
1130 AM MDT Mon May 17 2021 /1230 PM CDT Mon May 17 2021/

This hazardous weather outlook is for extreme southwest Nebraska...
northwest Kansas and east central Colorado.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Showers and thunderstorms will persist into tonight. Severe weather
is unlikely. Locally heavy rainfall and isolated flash flooding
remain possible, particularly in areas that already received heavy
rainfall during the past 48 hours.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH MONDAY...

Thunderstorm chances remain fairly high Tuesday through Wednesday
before decreasing into the slight chance and low chance category
Thursday through Sunday. Widespread severe weather is not expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated at this time.

$$

Vincent

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1059 AM MDT Mon May 17 2021

COZ030>051-181700-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1059 AM MDT Mon May 17 2021

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Scattered thunderstorms will develop over the mountains and Palmer
Divide by midday, and spread onto the plains after 2 pm and
continue into the evening hours. The main threats are heavy rain
and the potential for flash flooding. Across the far eastern
plains and Palmer Divide, there is a slight chance of severe
weather with hail up to one inch in diameter. There is also a
low to moderate threat of flash flooding from thunderstorm rains
in the foothills burn areas. Mainly from 2 to 5 pm this afternoon
in Boulder and Larimer counties.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Scattered showers and thunderstorms will develop Tuesday with less
coverage on Wednesday. The severe thunderstorm and flood threat
will be low both days. A warm and windy pattern will develop
Thursday into next weekend. There will be a chance for showers
and storms during each afternoon and evening.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today or tonight.

$$

Hazardous Weather Outlook
National Weather Service Rapid City SD
533 AM MDT Mon May 17 2021

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-181300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northern Black Hills-Northern Foot Hills-Rapid City-
Southern Foot Hills-Central Black Hills-Southern Black Hills-
Custer Co Plains-Pennington Co Plains-Haakon-Fall River-
Oglala Lakota-Jackson-Bennett-Mellette-Todd-Tripp-
Sturgis/Piedmont Foot Hills-Southern Meade Co Plains-
Hermosa Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
533 AM MDT Mon May 17 2021 /633 AM CDT Mon May 17 2021/

This Hazardous Weather Outlook is for portions of western South
Dakota and northeastern Wyoming.

.DAY ONE...Today and Tonight

Areas of fog, locally dense, can be expected through mid morning,
mainly across western South Dakota.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Isolated thunderstorms are possible Tuesday afternoon and evening
from the Black Hills to south central South Dakota. Daily chances
for thunderstorms will be more widespread mid to late week.
Severe storms are not expected at this time on Tuesday and
Wednesday, but the threat could increase some Thursday and Friday.

.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 Sioux Falls SD
436 AM CDT Mon May 17 2021

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-180945-
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-
436 AM CDT Mon May 17 2021

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.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Periods of showers or thunderstorms are expected from late Wednesday
into the upcoming weekend. The overall severe threat appears low at
this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

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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