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Home Return to list Dense Fog Advisory 0008 Issued by the Des Moines Forecast Office
Action: New Issued At: 2026-08-06 00:43:45 692 WWUS73 KDMX 060543 NPWDMX 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. && $$ Ansorge Action: Continued Issued At: 2026-08-06 06:30:40 537 WWUS73 KDMX 061130 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 630 AM CDT Thu Aug 6 2026 IAZ071-072-081>084-092>096-061500- /O.EXA.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Adair-Madison-Adams-Union-Clarke-Lucas-Taylor-Ringgold-Decatur- Wayne-Appanoose- Including the cities of Corydon, Lamoni, Lenox, Seymour, Osceola, Winterset, Corning, Leon, Fontanelle, Mount Ayr, Chariton, Centerville, Earlham, New Market, Stuart, Bedford, Greenfield, Humeston, Adair, Creston, and Allerton 630 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central and southwest Iowa, including portions of I-35 and US 34. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ005>007-015>017-023>028-033>039-044>049-057-058-070-061500- /O.CON.KDMX.FG.Y.0008.000000T0000Z-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 630 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...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. && $$ Ansorge Action: Area Extended Issued At: 2026-08-06 06:30:40 537 WWUS73 KDMX 061130 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 630 AM CDT Thu Aug 6 2026 IAZ071-072-081>084-092>096-061500- /O.EXA.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Adair-Madison-Adams-Union-Clarke-Lucas-Taylor-Ringgold-Decatur- Wayne-Appanoose- Including the cities of Corydon, Lamoni, Lenox, Seymour, Osceola, Winterset, Corning, Leon, Fontanelle, Mount Ayr, Chariton, Centerville, Earlham, New Market, Stuart, Bedford, Greenfield, Humeston, Adair, Creston, and Allerton 630 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central and southwest Iowa, including portions of I-35 and US 34. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ005>007-015>017-023>028-033>039-044>049-057-058-070-061500- /O.CON.KDMX.FG.Y.0008.000000T0000Z-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 630 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...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. && $$ Ansorge Action: Continued Issued At: 2026-08-06 07:59:14 630 WWUS73 KDMX 061259 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 759 AM CDT Thu Aug 6 2026 IAZ004-061500- /O.EXA.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Emmet- Including the cities of Estherville 759 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Emmet County. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ005>007-015>017-023>028-033>039-044>049-057-058-070>072-081>084- 092>096-061500- /O.CON.KDMX.FG.Y.0008.000000T0000Z-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-Adair-Madison-Adams-Union- Clarke-Lucas-Taylor-Ringgold-Decatur-Wayne-Appanoose- Including the cities of Iowa Falls, Emmetsburg, Lenox, Osceola, Clarion, Creston, Wall Lake, Seymour, Early, Conrad, Belmond, Waverly, Dumont, Garner, Fort Dodge, Denison, Clarksville, Mason City, Algona, Marshalltown, Exira, Centerville, Panora, Laurens, Dike, Lake Mills, Hampton, Boone, Fonda, Webster City, Jefferson, Corydon, Eagle Grove, Casey, Shell Rock, Humboldt, Leon, Bayard, Eldora, Carroll, Waterloo, Winterset, Mount Ayr, Atlantic, Grundy Center, Allison, Bedford, Greene, Lake View, Ames, Sac City, Rolfe, Fontanelle, Forest City, Odebolt, Cedar Falls, Pomeroy, Rockwell City, Stuart, Schaller, Northwood, Gilmore City, Wellsburg, Humeston, New Market, Earlham, Guthrie Center, Chariton, Ackley, Lamoni, Greenfield, Adair, Allerton, Pocahontas, Manly, Reinbeck, Lake City, Manson, Clear Lake, Parkersburg, Aplington, Corning, Kanawha, Britt, and Audubon 759 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...Portions of central, southern and western 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. && $$ Jimenez Action: Area Extended Issued At: 2026-08-06 07:59:14 630 WWUS73 KDMX 061259 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 759 AM CDT Thu Aug 6 2026 IAZ004-061500- /O.EXA.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Emmet- Including the cities of Estherville 759 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Emmet County. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ005>007-015>017-023>028-033>039-044>049-057-058-070>072-081>084- 092>096-061500- /O.CON.KDMX.FG.Y.0008.000000T0000Z-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-Adair-Madison-Adams-Union- Clarke-Lucas-Taylor-Ringgold-Decatur-Wayne-Appanoose- Including the cities of Iowa Falls, Emmetsburg, Lenox, Osceola, Clarion, Creston, Wall Lake, Seymour, Early, Conrad, Belmond, Waverly, Dumont, Garner, Fort Dodge, Denison, Clarksville, Mason City, Algona, Marshalltown, Exira, Centerville, Panora, Laurens, Dike, Lake Mills, Hampton, Boone, Fonda, Webster City, Jefferson, Corydon, Eagle Grove, Casey, Shell Rock, Humboldt, Leon, Bayard, Eldora, Carroll, Waterloo, Winterset, Mount Ayr, Atlantic, Grundy Center, Allison, Bedford, Greene, Lake View, Ames, Sac City, Rolfe, Fontanelle, Forest City, Odebolt, Cedar Falls, Pomeroy, Rockwell City, Stuart, Schaller, Northwood, Gilmore City, Wellsburg, Humeston, New Market, Earlham, Guthrie Center, Chariton, Ackley, Lamoni, Greenfield, Adair, Allerton, Pocahontas, Manly, Reinbeck, Lake City, Manson, Clear Lake, Parkersburg, Aplington, Corning, Kanawha, Britt, and Audubon 759 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...Portions of central, southern and western 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. && $$ Jimenez Action: Continued Issued At: 2026-08-06 08:58:17 874 WWUS73 KDMX 061357 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 857 AM CDT Thu Aug 6 2026 IAZ027-028-037>039-049-061500- /O.CAN.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall- Including the cities of Iowa Falls, Ackley, Grundy Center, Allison, Dike, Greene, Reinbeck, Conrad, Waverly, Dumont, Cedar Falls, Shell Rock, Parkersburg, Aplington, Clarksville, Marshalltown, Wellsburg, Eldora, and Waterloo 857 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY IS CANCELLED... Visibilities are improving this morning, so the Dense Fog Advisory was canceled. Localized patches of dense fog will be possible over the next hour. $$ IAZ004>007-015>017-023>026-033>036-044>048-057-058-070>072-081>084- 092>096-061500- /O.CON.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton- Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Cass-Adair- Madison-Adams-Union-Clarke-Lucas-Taylor-Ringgold-Decatur-Wayne- Appanoose- Including the cities of Chariton, Winterset, Mount Ayr, Atlantic, Centerville, Emmetsburg, Lenox, Osceola, Clarion, Panora, Creston, Laurens, Lamoni, Bedford, Lake Mills, Greenfield, Adair, Hampton, Lake View, Boone, Wall Lake, Sac City, Ames, Allerton, Pocahontas, Rolfe, Manly, Estherville, Early, Seymour, Fonda, Fontanelle, Belmond, Webster City, New Market, Garner, Forest City, Jefferson, Odebolt, Lake City, Pomeroy, Fort Dodge, Rockwell City, Corydon, Eagle Grove, Clear Lake, Manson, Stuart, Casey, Humboldt, Denison, Schaller, Corning, Leon, Kanawha, Mason City, Northwood, Gilmore City, Bayard, Britt, Audubon, Algona, Humeston, Carroll, Exira, Earlham, and Guthrie Center 857 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Visibility less than one mile in dense fog. * WHERE...Portions of northern, western and southern 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. && $$ Jimenez Action: Cancelled Issued At: 2026-08-06 08:58:17 874 WWUS73 KDMX 061357 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 857 AM CDT Thu Aug 6 2026 IAZ027-028-037>039-049-061500- /O.CAN.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Butler-Bremer-Hardin-Grundy-Black Hawk-Marshall- Including the cities of Iowa Falls, Ackley, Grundy Center, Allison, Dike, Greene, Reinbeck, Conrad, Waverly, Dumont, Cedar Falls, Shell Rock, Parkersburg, Aplington, Clarksville, Marshalltown, Wellsburg, Eldora, and Waterloo 857 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY IS CANCELLED... Visibilities are improving this morning, so the Dense Fog Advisory was canceled. Localized patches of dense fog will be possible over the next hour. $$ IAZ004>007-015>017-023>026-033>036-044>048-057-058-070>072-081>084- 092>096-061500- /O.CON.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton- Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Cass-Adair- Madison-Adams-Union-Clarke-Lucas-Taylor-Ringgold-Decatur-Wayne- Appanoose- Including the cities of Chariton, Winterset, Mount Ayr, Atlantic, Centerville, Emmetsburg, Lenox, Osceola, Clarion, Panora, Creston, Laurens, Lamoni, Bedford, Lake Mills, Greenfield, Adair, Hampton, Lake View, Boone, Wall Lake, Sac City, Ames, Allerton, Pocahontas, Rolfe, Manly, Estherville, Early, Seymour, Fonda, Fontanelle, Belmond, Webster City, New Market, Garner, Forest City, Jefferson, Odebolt, Lake City, Pomeroy, Fort Dodge, Rockwell City, Corydon, Eagle Grove, Clear Lake, Manson, Stuart, Casey, Humboldt, Denison, Schaller, Corning, Leon, Kanawha, Mason City, Northwood, Gilmore City, Bayard, Britt, Audubon, Algona, Humeston, Carroll, Exira, Earlham, and Guthrie Center 857 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CDT THIS MORNING... * WHAT...Visibility less than one mile in dense fog. * WHERE...Portions of northern, western and southern 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. && $$ Jimenez Action: Expired Issued At: 2026-08-06 09:59:49 498 WWUS73 KDMX 061459 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 959 AM CDT Thu Aug 6 2026 IAZ004>007-015>017-023>026-033>036-044>048-057-058-070>072-081>084- 092>096-061600- /O.EXP.KDMX.FG.Y.0008.000000T0000Z-260806T1500Z/ Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Sac-Calhoun-Webster-Hamilton- Crawford-Carroll-Greene-Boone-Story-Audubon-Guthrie-Cass-Adair- Madison-Adams-Union-Clarke-Lucas-Taylor-Ringgold-Decatur-Wayne- Appanoose- Including the cities of Chariton, Winterset, Mount Ayr, Atlantic, Centerville, Emmetsburg, Lenox, Osceola, Clarion, Panora, Creston, Laurens, Lamoni, Bedford, Lake Mills, Greenfield, Adair, Hampton, Lake View, Boone, Wall Lake, Sac City, Ames, Allerton, Pocahontas, Rolfe, Manly, Estherville, Early, Seymour, Fonda, Fontanelle, Belmond, Webster City, New Market, Garner, Forest City, Jefferson, Odebolt, Lake City, Pomeroy, Fort Dodge, Rockwell City, Corydon, Eagle Grove, Clear Lake, Manson, Stuart, Casey, Humboldt, Denison, Schaller, Corning, Leon, Kanawha, Mason City, Northwood, Gilmore City, Bayard, Britt, Audubon, Algona, Humeston, Carroll, Exira, Earlham, and Guthrie Center 959 AM CDT Thu Aug 6 2026 ...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM CDT THIS MORNING... Visibility across central Iowa is improving in most areas so the Dense Fog Advisory will be allowed to expire. $$ Jimenez | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||