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Home Return to list Dense Fog Advisory 0008 Issued by the La Crosse Forecast Office
Action: New Issued At: 2026-06-22 02:18:51 608 WWUS73 KARX 220718 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 218 AM CDT Mon Jun 22 2026 IAZ009-010-018-019-221000- /O.NEW.KARX.FG.Y.0008.260622T0718Z-260622T1000Z/ Howard-Winneshiek-Floyd-Chickasaw- Including the cities of Cresco, New Hampton, Decorah, and Charles City 218 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 5 AM CDT EARLY THIS MORNING... * WHAT...Visibility less than 1/4 mile in dense fog. * WHERE...Floyd, Chickasaw, Howard, and Winneshiek Counties. * WHEN...Until 5 AM CDT early 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. && $$ JAR Action: Time and Area Extended Issued At: 2026-06-22 03:42:34 016 WWUS73 KARX 220842 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 342 AM CDT Mon Jun 22 2026 IAZ011-029-MNZ096-221145- /O.EXB.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Allamakee-Fayette-Houston- Including the cities of Caledonia, Waukon, and Oelwein 342 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...In Iowa, Allamakee and Fayette Counties. In Minnesota, Houston County. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ009-010-018-019-221145- /O.EXT.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Floyd-Chickasaw- Including the cities of Cresco, New Hampton, Decorah, and Charles City 342 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Floyd, Chickasaw, Howard, and Winneshiek Counties. * WHEN...Until 7 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. && $$ JAR Action: Time Extended Issued At: 2026-06-22 03:42:34 016 WWUS73 KARX 220842 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 342 AM CDT Mon Jun 22 2026 IAZ011-029-MNZ096-221145- /O.EXB.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Allamakee-Fayette-Houston- Including the cities of Caledonia, Waukon, and Oelwein 342 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...In Iowa, Allamakee and Fayette Counties. In Minnesota, Houston County. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ009-010-018-019-221145- /O.EXT.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Floyd-Chickasaw- Including the cities of Cresco, New Hampton, Decorah, and Charles City 342 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Floyd, Chickasaw, Howard, and Winneshiek Counties. * WHEN...Until 7 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. && $$ JAR Action: Area Extended Issued At: 2026-06-22 04:26:35 292 WWUS73 KARX 220926 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 426 AM CDT Mon Jun 22 2026 IAZ030-221200- /O.EXA.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Clayton- Including the cities of Elkader 426 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Clayton County. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ009>011-018-019-029-MNZ096-221200- /O.CON.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Houston- Including the cities of New Hampton, Decorah, Cresco, Oelwein, Charles City, Caledonia, and Waukon 426 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...In Iowa, Floyd, Allamakee, Chickasaw, Fayette, Howard, and Winneshiek Counties. In Minnesota, Houston County. * WHEN...Until 7 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. && $$ JAR Action: Continued Issued At: 2026-06-22 04:26:35 292 WWUS73 KARX 220926 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 426 AM CDT Mon Jun 22 2026 IAZ030-221200- /O.EXA.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Clayton- Including the cities of Elkader 426 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Clayton County. * WHEN...Until 7 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ IAZ009>011-018-019-029-MNZ096-221200- /O.CON.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-Houston- Including the cities of New Hampton, Decorah, Cresco, Oelwein, Charles City, Caledonia, and Waukon 426 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter mile in dense fog. * WHERE...In Iowa, Floyd, Allamakee, Chickasaw, Fayette, Howard, and Winneshiek Counties. In Minnesota, Houston County. * WHEN...Until 7 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. && $$ JAR Action: Continued Issued At: 2026-06-22 05:41:07 299 WWUS73 KARX 221040 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 540 AM CDT Mon Jun 22 2026 IAZ011-MNZ096-221145- /O.CAN.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Allamakee-Houston- Including the cities of Caledonia and Waukon 540 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IS CANCELLED... Visibilities improved upon daybreak in Houston County, MN and Allamakee County, IA. Therefore the Dense Fog Advisory is cancelled in these areas. $$ IAZ009-010-018-019-029-030-221200- /O.CON.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Floyd-Chickasaw-Fayette-Clayton- Including the cities of New Hampton, Decorah, Elkader, Cresco, Oelwein, and Charles City 540 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter of a mile in dense fog. * WHERE...Floyd, Chickasaw, Clayton, Fayette, Howard, and Winneshiek Counties. * WHEN...Until 7 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. && $$ JAR Action: Cancelled Issued At: 2026-06-22 05:41:07 299 WWUS73 KARX 221040 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 540 AM CDT Mon Jun 22 2026 IAZ011-MNZ096-221145- /O.CAN.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Allamakee-Houston- Including the cities of Caledonia and Waukon 540 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY IS CANCELLED... Visibilities improved upon daybreak in Houston County, MN and Allamakee County, IA. Therefore the Dense Fog Advisory is cancelled in these areas. $$ IAZ009-010-018-019-029-030-221200- /O.CON.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Floyd-Chickasaw-Fayette-Clayton- Including the cities of New Hampton, Decorah, Elkader, Cresco, Oelwein, and Charles City 540 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING... * WHAT...Visibility less than one quarter of a mile in dense fog. * WHERE...Floyd, Chickasaw, Clayton, Fayette, Howard, and Winneshiek Counties. * WHEN...Until 7 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. && $$ JAR Action: Expired Issued At: 2026-06-22 06:57:20 277 WWUS73 KARX 221157 NPWARX URGENT - WEATHER MESSAGE National Weather Service La Crosse WI 657 AM CDT Mon Jun 22 2026 IAZ009-010-018-019-029-030-221300- /O.EXP.KARX.FG.Y.0008.000000T0000Z-260622T1200Z/ Howard-Winneshiek-Floyd-Chickasaw-Fayette-Clayton- Including the cities of Elkader, Oelwein, Cresco, Decorah, New Hampton, and Charles City 657 AM CDT Mon Jun 22 2026 ...DENSE FOG ADVISORY WILL EXPIRE AT 7 AM CDT THIS MORNING... Locally dense fog has begun to disperse resulting in improving visibilities this morning. Consequently, the Dense Fog Advisory has been allowed to expire. If encountering any lingering pockets of fog, be sure to slow down and give ample distance ahead of you. $$ JRN | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||