Dense Fog Advisory
URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
308 AM CDT Thu Aug 6 2026
IAZ012-013-020-NEZ013-014-SDZ071-061500-
/O.EXA.KFSD.FG.Y.0011.000000T0000Z-260806T1500Z/
Sioux-O`Brien-Plymouth-Dixon-Dakota-Union-
Including the cities of Sioux Center, Hartley, Le Mars, Hull, Orange
City, Ponca, Allen, South Sioux City, North Sioux City, Sanborn,
Hawarden, Beresford, Wakefield, Alcester, Sheldon, Elk Point,
Jefferson, and Rock Valley
308 AM CDT Thu Aug 6 2026
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of northwest Iowa, northeast Nebraska, and
southeast South Dakota.
* WHEN...Until 10 AM CDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Sioux Falls SD
308 AM CDT Thu Aug 6 2026
IAZ014-021-022-031-032-061500-
/O.CON.KFSD.FG.Y.0011.000000T0000Z-260806T1500Z/
Clay-Cherokee-Buena Vista-Woodbury-Ida-
Including the cities of Sioux City, Holstein, Storm Lake, Cherokee,
Battle Creek, Spencer, and Ida Grove
308 AM CDT Thu Aug 6 2026
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Buena Vista, Cherokee, Clay, Ida, and Woodbury Counties.
* WHEN...Until 10 AM CDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
IG
URGENT - WEATHER MESSAGE
National Weather Service Des Moines IA
1243 AM CDT Thu Aug 6 2026
IAZ005>007-015>017-023>028-033>039-044>049-057-058-070-061500-
/O.NEW.KDMX.FG.Y.0008.260806T0700Z-260806T1500Z/
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-Audubon-Guthrie-Cass-
Including the cities of Webster City, Pocahontas, Eldora,
Aplington, Casey, Waverly, Early, Conrad, Guthrie Center, Lake
City, Clarksville, Marshalltown, Ackley, Clarion, Mason City,
Britt, Laurens, Wellsburg, Rolfe, Hampton, Allison, Lake View,
Odebolt, Exira, Lake Mills, Emmetsburg, Reinbeck, Wall Lake,
Grundy Center, Jefferson, Fort Dodge, Greene, Belmond, Rockwell
City, Kanawha, Audubon, Cedar Falls, Ames, Sac City, Dike,
Algona, Schaller, Garner, Eagle Grove, Northwood, Panora,
Carroll, Atlantic, Boone, Iowa Falls, Forest City, Pomeroy,
Waterloo, Humboldt, Shell Rock, Bayard, Dumont, Denison, Clear
Lake, Gilmore City, Manly, Fonda, Parkersburg, and Manson
1243 AM CDT Thu Aug 6 2026
...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of northern, central, and western Iowa. This
includes parts of I-35 in northern Iowa, parts of I-80 in western
Iowa, and much of US 20 and US 30 in western and central Iowa.
* WHEN...Until 10 AM CDT this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
Ansorge
URGENT - WEATHER MESSAGE
National Weather Service Omaha/Valley NE
1156 PM CDT Wed Aug 5 2026
IAZ043-055-056-069-079-080-090-091-NEZ015>018-030>034-042>045-
050>053-065>068-078-088>093-061500-
/O.EXT.KOAX.FG.Y.0008.260806T0800Z-260806T1500Z/
Monona-Harrison-Shelby-Pottawattamie-Mills-Montgomery-Fremont-Page-
Thurston-Antelope-Pierce-Wayne-Boone-Madison-Stanton-Cuming-Burt-
Platte-Colfax-Dodge-Washington-Butler-Saunders-Douglas-Sarpy-Seward-
Lancaster-Cass-Otoe-Saline-Jefferson-Gage-Johnson-Nemaha-Pawnee-
Richardson-
Including the cities of Fairbury, Decatur, Crete, Red Oak, St.
Edward, Shenandoah, Wisner, Elgin, Sterling, Macy, Dunlap, Pierce,
Sidney, Lyons, Osmond, Norfolk, David City, Plattsmouth, Pawnee City,
Nebraska City, Pender, Yutan, Beatrice, Mapleton, Missouri Valley,
Wayne, Bellevue, Albion, Onawa, Columbus, La Vista, Clarinda, Council
Bluffs, Plainview, Walthill, Winnebago, Harlan, Lincoln, Glenwood,
Hamburg, West Point, Ashland, Auburn, Schuyler, Stanton, Milford,
Fremont, Oakland, Seward, Farragut, Wahoo, Logan, Papillion, Tabor,
Omaha, Neligh, Woodbine, Blair, Table Rock, Tekamah, Falls City,
Tecumseh, and Wilber
1156 PM CDT Wed Aug 5 2026
...DENSE FOG ADVISORY NOW IN EFFECT FROM 3 AM TO 10 AM CDT
THURSDAY...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of southwest and west central Iowa and east
central, northeast, and southeast Nebraska.
* WHEN...From 3 AM to 10 AM CDT Thursday.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
Wood
URGENT - WEATHER MESSAGE
National Weather Service North Platte NE
1154 PM CDT Wed Aug 5 2026
NEZ027>029-038-057>059-069>071-061500-
/O.NEW.KLBF.FG.Y.0006.260806T0900Z-260806T1500Z/
Loup-Garfield-Wheeler-Custer-Keith-Perkins-Lincoln-Chase-Hayes-
Frontier-
Including the cities of Bartlett, Maywood, Paxton, Taylor, Eustis,
North Platte, Wauneta, Hayes Center, Ericson, Ogallala, Grant,
Champion, Enders, Curtis, Burwell, Broken Bow, and Imperial
1154 PM CDT Wed Aug 5 2026 /1054 PM MDT Wed Aug 5 2026/
...DENSE FOG ADVISORY IN EFFECT FROM 4 AM CDT /3 AM MDT/ TO 10 AM CDT
/9 AM MDT/ THURSDAY...
* WHAT...Visibility down to one quarter mile in dense fog.
* WHERE...Custer, Garfield, Loup, Wheeler, Chase, Frontier, Hayes,
Keith, Lincoln, and Perkins Counties.
* WHEN...From 4 AM CDT /3 AM MDT/ to 10 AM CDT /9 AM MDT/ Thursday.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights on low beam, and leave
plenty of distance ahead of you.
&&
$$
CLB
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service North Platte NE
313 AM CDT Thu Aug 6 2026
NEZ004>010-022>029-035>038-056>059-069>071-094-070815-
Sheridan-Eastern Cherry-Keya Paha-Boyd-Brown-Rock-Holt-Garden-Grant-
Hooker-Thomas-Blaine-Loup-Garfield-Wheeler-Arthur-McPherson-Logan-
Custer-Deuel-Keith-Perkins-Lincoln-Chase-Hayes-Frontier-
Western Cherry-
313 AM CDT Thu Aug 6 2026 /213 AM MDT Thu Aug 6 2026/
This Hazardous Weather Outlook is for portions of western and north
central Nebraska.
.DAY ONE...Today and tonight.
Dense fog is possible across southwestern into portions of central
Nebraska this morning. A dense fog advisory is in effect for these
areas through 10 AM CDT.
Isolated thunderstorms are possible late this afternoon and evening
across the western Sandhills into portions of north central Nebraska.
A storm or two may reach severe limits with gusty winds and large
hail possible. The main area of concern is north of a line from
Oshkosh to Arnold.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
Isolated thunderstorms are possible Friday night through Saturday,
mainly east of a line from Valentine to North Platte. There is a
marginal risk for severe storms Saturday generally east of a line
from North Platte to Valentine.
The threat for thunderstorms will increase on Sunday evening across
the area with daily thunderstorms possible through Wednesday. At
this time, the severe risk is uncertain.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Aberdeen SD
307 AM CDT Thu Aug 6 2026
SDZ045-048-070815-
Jones-Lyman-
307 AM CDT Thu Aug 6 2026
This Hazardous Weather Outlook is for central South Dakota.
.DAY ONE...Today and tonight.
There is a Marginal Risk (level 1 of 5) for isolated storms to become
severe if they are able to develop late this afternoon overnight into
early Friday morning. The main threats will be wind gusts of 60 mph
and hail up to 1 inch in diameter.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
304 AM CDT Thu Aug 6 2026
IAZ004-050-059>062-071>075-081>086-092>097-070815-
Emmet-Tama-Dallas-Polk-Jasper-Poweshiek-Adair-Madison-Warren-
Marion-Mahaska-Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-
Ringgold-Decatur-Wayne-Appanoose-Davis-
304 AM CDT Thu Aug 6 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...Today and tonight
Areas of fog are possible this morning and again tonight,
particularly east of I-35.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Periods of thunderstorms are possible from Friday through early
next week. A few strong to severe storms and locally heavy
rainfall are possible Friday and Saturday with these concerns
being better assessed in the coming days.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
304 AM CDT Thu Aug 6 2026
IAZ005>007-015>017-023>028-033>039-044>049-057-058-070-070815-
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-Audubon-Guthrie-Cass-
304 AM CDT Thu Aug 6 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...Today and tonight
A Dense Fog Advisory is in effect for the area. Please refer to
the National Weather Service website at weather.gov/desmoines for
further details.
Areas of fog are possible again tonight, particularly east of
I-35.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Periods of thunderstorms are possible from Friday through early
next week. A few strong to severe storms and locally heavy
rainfall are possible Friday and Saturday with these concerns
being better assessed in the coming days.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Ansorge
Hazardous Weather Outlook
National Weather Service Sioux Falls SD
1001 PM CDT Wed Aug 5 2026
IAZ001>003-012>014-020>022-031-032-MNZ089-090-098-NEZ013-014-SDZ062-
066-067-069>071-070315-
Lyon-Osceola-Dickinson-Sioux-O`Brien-Clay-Plymouth-Cherokee-
Buena Vista-Woodbury-Ida-Nobles-Jackson-Rock-Dixon-Dakota-Minnehaha-
Turner-Lincoln-Yankton-Union-
1001 PM CDT Wed Aug 5 2026
This Hazardous Weather Outlook is for northwest Iowa, west central
Iowa, southwest Minnesota, northeast Nebraska and southeast South
Dakota.
.DAY ONE...Tonight.
Patchy areas of fog are likely late tonight/early Thursday morning,
burning off by mid-morning. Dense fog with visibilities less than a
quarter mile is possible mainly near and southeast of a Sioux City to
Storm Lake line.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
