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Home Return to list Dense Fog Advisory 0009 Issued by the Des Moines Forecast Office
Action: New Issued At: 2026-08-07 02:52:53 531 WWUS73 KDMX 070752 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 252 AM CDT Fri Aug 7 2026 IAZ047>050-057>062-070>074-081>085-092>096-071400- /O.NEW.KDMX.FG.Y.0009.260807T0752Z-260807T1400Z/ Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Adams-Union-Clarke- Lucas-Monroe-Taylor-Ringgold-Decatur-Wayne-Appanoose- Including the cities of Norwalk, Gladbrook, Ames, Adair, Waukee, Des Moines, Corydon, Allerton, Atlantic, Lamoni, Audubon, Greenfield, Carlisle, Chariton, Humeston, Indianola, Tama, New Market, Perry, Newton, Knoxville, Casey, Albia, Stuart, Toledo, Osceola, Mount Ayr, Seymour, Corning, Leon, Traer, Grinnell, Lenox, Bedford, Earlham, Dysart, Exira, Creston, Fontanelle, Centerville, Bayard, Marshalltown, Pella, Boone, Guthrie Center, Adel, Winterset, and Panora 252 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Portions of central, southern, and southwest Iowa. * WHEN...Until 9 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. && $$ Action: Continued Issued At: 2026-08-07 03:51:34 239 WWUS73 KDMX 070851 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 351 AM CDT Fri Aug 7 2026 IAZ028-039-075-086-097-071400- /O.EXA.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Bremer-Black Hawk-Mahaska-Wapello-Davis- Including the cities of Ottumwa, Cedar Falls, Waverly, Oskaloosa, Waterloo, and Bloomfield 351 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Black Hawk, Bremer, Mahaska, Davis, and Wapello Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ047>050-057>062-070>074-081>085-092>096-071400- /O.CON.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Adams-Union-Clarke- Lucas-Monroe-Taylor-Ringgold-Decatur-Wayne-Appanoose- Including the cities of Norwalk, Gladbrook, Ames, Adair, Waukee, Des Moines, Corydon, Allerton, Atlantic, Lamoni, Audubon, Greenfield, Carlisle, Chariton, Humeston, Indianola, Tama, New Market, Perry, Newton, Knoxville, Casey, Albia, Stuart, Toledo, Osceola, Mount Ayr, Seymour, Corning, Leon, Traer, Grinnell, Lenox, Bedford, Earlham, Dysart, Exira, Creston, Fontanelle, Centerville, Bayard, Marshalltown, Pella, Boone, Guthrie Center, Adel, Winterset, and Panora 351 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Portions of central, southern, and southwest Iowa. * WHEN...Until 9 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. && $$ Action: Area Extended Issued At: 2026-08-07 03:51:34 239 WWUS73 KDMX 070851 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 351 AM CDT Fri Aug 7 2026 IAZ028-039-075-086-097-071400- /O.EXA.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Bremer-Black Hawk-Mahaska-Wapello-Davis- Including the cities of Ottumwa, Cedar Falls, Waverly, Oskaloosa, Waterloo, and Bloomfield 351 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Black Hawk, Bremer, Mahaska, Davis, and Wapello Counties. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ047>050-057>062-070>074-081>085-092>096-071400- /O.CON.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper- Poweshiek-Cass-Adair-Madison-Warren-Marion-Adams-Union-Clarke- Lucas-Monroe-Taylor-Ringgold-Decatur-Wayne-Appanoose- Including the cities of Norwalk, Gladbrook, Ames, Adair, Waukee, Des Moines, Corydon, Allerton, Atlantic, Lamoni, Audubon, Greenfield, Carlisle, Chariton, Humeston, Indianola, Tama, New Market, Perry, Newton, Knoxville, Casey, Albia, Stuart, Toledo, Osceola, Mount Ayr, Seymour, Corning, Leon, Traer, Grinnell, Lenox, Bedford, Earlham, Dysart, Exira, Creston, Fontanelle, Centerville, Bayard, Marshalltown, Pella, Boone, Guthrie Center, Adel, Winterset, and Panora 351 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Portions of central, southern, and southwest Iowa. * WHEN...Until 9 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. && $$ Action: Area Extended Issued At: 2026-08-07 05:14:36 663 WWUS73 KDMX 071014 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 514 AM CDT Fri Aug 7 2026 IAZ005-016-017-024>027-033>038-044>046-071400- /O.EXA.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Kossuth-Hancock-Cerro Gordo-Humboldt-Wright-Franklin-Butler-Sac- Calhoun-Webster-Hamilton-Hardin-Grundy-Crawford-Carroll-Greene- Including the cities of Clarion, Garner, Early, Algona, Jefferson, Manson, Humboldt, Clarksville, Lake City, Mason City, Pomeroy, Fort Dodge, Schaller, Webster City, Odebolt, Iowa Falls, Aplington, Sac City, Greene, Hampton, Wall Lake, Wellsburg, Lake View, Conrad, Belmond, Denison, Ackley, Allison, Eldora, Reinbeck, Dumont, Kanawha, Rockwell City, Grundy Center, Parkersburg, Dike, Eagle Grove, Clear Lake, Shell Rock, Carroll, and Britt 514 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Portions of central, north central, and west central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ028-039-047>050-057>062-070>075-081>086-092>097-071400- /O.CON.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Bremer-Black Hawk-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- Including the cities of Norwalk, Ottumwa, Gladbrook, Ames, Adair, Waukee, Des Moines, Corydon, Allerton, Atlantic, Lamoni, Audubon, Greenfield, Carlisle, Chariton, Humeston, Indianola, Tama, New Market, Perry, Newton, Knoxville, Casey, Albia, Stuart, Cedar Falls, Bloomfield, Toledo, Osceola, Mount Ayr, Seymour, Corning, Leon, Traer, Grinnell, Lenox, Bedford, Earlham, Dysart, Exira, Creston, Fontanelle, Centerville, Bayard, Marshalltown, Pella, Boone, Guthrie Center, Waverly, Waterloo, Adel, Oskaloosa, Winterset, and Panora 514 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Much of central Iowa. * WHEN...Until 9 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. && $$ Action: Continued Issued At: 2026-08-07 05:14:36 663 WWUS73 KDMX 071014 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 514 AM CDT Fri Aug 7 2026 IAZ005-016-017-024>027-033>038-044>046-071400- /O.EXA.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Kossuth-Hancock-Cerro Gordo-Humboldt-Wright-Franklin-Butler-Sac- Calhoun-Webster-Hamilton-Hardin-Grundy-Crawford-Carroll-Greene- Including the cities of Clarion, Garner, Early, Algona, Jefferson, Manson, Humboldt, Clarksville, Lake City, Mason City, Pomeroy, Fort Dodge, Schaller, Webster City, Odebolt, Iowa Falls, Aplington, Sac City, Greene, Hampton, Wall Lake, Wellsburg, Lake View, Conrad, Belmond, Denison, Ackley, Allison, Eldora, Reinbeck, Dumont, Kanawha, Rockwell City, Grundy Center, Parkersburg, Dike, Eagle Grove, Clear Lake, Shell Rock, Carroll, and Britt 514 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Portions of central, north central, and west central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ028-039-047>050-057>062-070>075-081>086-092>097-071400- /O.CON.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Bremer-Black Hawk-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- Including the cities of Norwalk, Ottumwa, Gladbrook, Ames, Adair, Waukee, Des Moines, Corydon, Allerton, Atlantic, Lamoni, Audubon, Greenfield, Carlisle, Chariton, Humeston, Indianola, Tama, New Market, Perry, Newton, Knoxville, Casey, Albia, Stuart, Cedar Falls, Bloomfield, Toledo, Osceola, Mount Ayr, Seymour, Corning, Leon, Traer, Grinnell, Lenox, Bedford, Earlham, Dysart, Exira, Creston, Fontanelle, Centerville, Bayard, Marshalltown, Pella, Boone, Guthrie Center, Waverly, Waterloo, Adel, Oskaloosa, Winterset, and Panora 514 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Much of central Iowa. * WHEN...Until 9 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. && $$ Action: Continued Issued At: 2026-08-07 06:40:08 695 WWUS73 KDMX 071139 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 639 AM CDT Fri Aug 7 2026 IAZ006-007-015-023-071400- /O.EXA.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Winnebago-Worth-Palo Alto-Pocahontas- Including the cities of Lake Mills, Fonda, Manly, Forest City, Rolfe, Laurens, Emmetsburg, Gilmore City, Northwood, and Pocahontas 639 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Much of central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ005-016-017-024>028-033>039-044>050-057>062-070>075-081>086- 092>097-071400- /O.CON.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Kossuth-Hancock-Cerro Gordo-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- Including the cities of Newton, Rockwell City, Schaller, Wellsburg, Lamoni, Conrad, Stuart, Clarksville, Waverly, Grundy Center, Iowa Falls, Allerton, Cedar Falls, Exira, Corydon, Seymour, Fontanelle, Winterset, Norwalk, Boone, Kanawha, Greene, Clarion, Traer, Early, Eagle Grove, Algona, Mason City, Reinbeck, Webster City, Fort Dodge, Adair, Osceola, Lenox, Waterloo, Waukee, Toledo, Manson, Allison, Odebolt, Jefferson, Tama, Carlisle, Pella, Des Moines, Marshalltown, Shell Rock, Pomeroy, Ackley, Panora, Leon, Guthrie Center, Carroll, Oskaloosa, Casey, Humboldt, Atlantic, Lake City, Dumont, Dysart, Britt, Bayard, Knoxville, Ottumwa, Eldora, Ames, Bloomfield, Clear Lake, Garner, Centerville, Albia, Denison, Perry, Dike, Audubon, Humeston, Parkersburg, Corning, Wall Lake, Indianola, Chariton, Belmond, Sac City, Mount Ayr, Earlham, Creston, Grinnell, Gladbrook, Hampton, Greenfield, Lake View, Adel, New Market, Bedford, and Aplington 639 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Much of central Iowa. * WHEN...Until 9 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. && $$ 67 Action: Area Extended Issued At: 2026-08-07 06:40:08 695 WWUS73 KDMX 071139 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 639 AM CDT Fri Aug 7 2026 IAZ006-007-015-023-071400- /O.EXA.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Winnebago-Worth-Palo Alto-Pocahontas- Including the cities of Lake Mills, Fonda, Manly, Forest City, Rolfe, Laurens, Emmetsburg, Gilmore City, Northwood, and Pocahontas 639 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Much of central Iowa. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ005-016-017-024>028-033>039-044>050-057>062-070>075-081>086- 092>097-071400- /O.CON.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Kossuth-Hancock-Cerro Gordo-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- Including the cities of Newton, Rockwell City, Schaller, Wellsburg, Lamoni, Conrad, Stuart, Clarksville, Waverly, Grundy Center, Iowa Falls, Allerton, Cedar Falls, Exira, Corydon, Seymour, Fontanelle, Winterset, Norwalk, Boone, Kanawha, Greene, Clarion, Traer, Early, Eagle Grove, Algona, Mason City, Reinbeck, Webster City, Fort Dodge, Adair, Osceola, Lenox, Waterloo, Waukee, Toledo, Manson, Allison, Odebolt, Jefferson, Tama, Carlisle, Pella, Des Moines, Marshalltown, Shell Rock, Pomeroy, Ackley, Panora, Leon, Guthrie Center, Carroll, Oskaloosa, Casey, Humboldt, Atlantic, Lake City, Dumont, Dysart, Britt, Bayard, Knoxville, Ottumwa, Eldora, Ames, Bloomfield, Clear Lake, Garner, Centerville, Albia, Denison, Perry, Dike, Audubon, Humeston, Parkersburg, Corning, Wall Lake, Indianola, Chariton, Belmond, Sac City, Mount Ayr, Earlham, Creston, Grinnell, Gladbrook, Hampton, Greenfield, Lake View, Adel, New Market, Bedford, and Aplington 639 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING... * WHAT...Visibility less than one half mile in dense fog. * WHERE...Much of central Iowa. * WHEN...Until 9 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. && $$ 67 Action: Expired Issued At: 2026-08-07 08:49:13 864 WWUS73 KDMX 071348 NPWDMX URGENT - WEATHER MESSAGE National Weather Service Des Moines IA 848 AM CDT Fri Aug 7 2026 IAZ005>007-015>017-023>028-033>039-044>050-057>062-070>075-081>086- 092>097-071500- /O.EXP.KDMX.FG.Y.0009.000000T0000Z-260807T1400Z/ Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-Pocahontas- Humboldt-Wright-Franklin-Butler-Bremer-Sac-Calhoun-Webster- Hamilton-Hardin-Grundy-Black Hawk-Crawford-Carroll-Greene-Boone- Story-Marshall-Tama-Audubon-Guthrie-Dallas-Polk-Jasper-Poweshiek- Cass-Adair-Madison-Warren-Marion-Mahaska-Adams-Union-Clarke-Lucas- Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne-Appanoose-Davis- Including the cities of Mount Ayr, Bayard, Schaller, Des Moines, Knoxville, Atlantic, Waverly, Allison, Perry, Fort Dodge, Hampton, Adair, Traer, Reinbeck, Kanawha, Chariton, Corning, Gilmore City, Denison, Ottumwa, Centerville, Manson, Lake City, Carroll, Albia, Clear Lake, Grinnell, Jefferson, Waterloo, Eagle Grove, Boone, Newton, Earlham, Stuart, Adel, Clarksville, Allerton, Rockwell City, Shell Rock, Belmond, Aplington, Britt, Northwood, Fonda, Pocahontas, Sac City, Iowa Falls, Oskaloosa, Bedford, Guthrie Center, Odebolt, Bloomfield, Creston, Humeston, Emmetsburg, Laurens, Pella, Waukee, Carlisle, Exira, Lake View, Conrad, Dike, Seymour, Parkersburg, Audubon, New Market, Osceola, Garner, Lenox, Grundy Center, Marshalltown, Leon, Eldora, Cedar Falls, Tama, Ackley, Norwalk, Corydon, Greene, Casey, Toledo, Algona, Forest City, Lamoni, Indianola, Dysart, Fontanelle, Wall Lake, Pomeroy, Webster City, Rolfe, Clarion, Humboldt, Panora, Manly, Dumont, Lake Mills, Early, Greenfield, Wellsburg, Mason City, Ames, Gladbrook, and Winterset 848 AM CDT Fri Aug 7 2026 ...DENSE FOG ADVISORY WILL EXPIRE AT 9 AM CDT THIS MORNING... Visibility across central Iowa is improving so the Dense Fog Advisory will be allowed to expire. $$ Donavon | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||