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Home Return to list Dense Fog Advisory 0018 Issued by the St. Louis Forecast Office
Action: New Issued At: 2025-12-24 12:49:49 601 WWUS73 KLSX 241849 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 1249 PM CST Wed Dec 24 2025 ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-251000- /O.NEW.KLSX.FG.Y.0018.251225T0300Z-251225T1600Z/ Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO- Lincoln MO- Including the cities of Quincy, Bowling Green, Fulton, Columbia, Mount Sterling, Pittsfield, Mexico, Hannibal, and Litchfield 1249 PM CST Wed Dec 24 2025 ...DENSE FOG ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 10 AM CST THURSDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...From 9 PM this evening to 10 AM CST 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. && $$ Kimble Action: Time and Area Extended Issued At: 2025-12-24 19:34:29 459 WWUS73 KLSX 250133 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 733 PM CST Wed Dec 24 2025 ILZ064-065-100-251600- /O.EXB.KLSX.FG.Y.0018.251225T0133Z-251225T1600Z/ Bond IL-Fayette IL-Madison IL- Including the cities of Vandalia, Alton, and Edwardsville 733 PM CST Wed Dec 24 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THURSDAY... * WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Bond IL, Fayette IL, and Madison IL Counties. * WHEN...Until 10 AM CST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-251600- /O.EXT.KLSX.FG.Y.0018.251225T0133Z-251225T1600Z/ Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO- Lincoln MO- Including the cities of Litchfield, Hannibal, Mount Sterling, Columbia, Mexico, Pittsfield, Fulton, Bowling Green, and Quincy 733 PM CST Wed Dec 24 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CST THURSDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...Until 10 AM CST 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. && $$ Jaja Action: Time Extended Issued At: 2025-12-24 19:34:29 459 WWUS73 KLSX 250133 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 733 PM CST Wed Dec 24 2025 ILZ064-065-100-251600- /O.EXB.KLSX.FG.Y.0018.251225T0133Z-251225T1600Z/ Bond IL-Fayette IL-Madison IL- Including the cities of Vandalia, Alton, and Edwardsville 733 PM CST Wed Dec 24 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THURSDAY... * WHAT...Visibility one quarter to one half mile in dense fog. * WHERE...Bond IL, Fayette IL, and Madison IL Counties. * WHEN...Until 10 AM CST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ ILZ058>060-095>099-MOZ018-019-026-027-034>036-041-042-050>052-251600- /O.EXT.KLSX.FG.Y.0018.251225T0133Z-251225T1600Z/ Greene IL-Macoupin IL-Montgomery IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO- Lincoln MO- Including the cities of Litchfield, Hannibal, Mount Sterling, Columbia, Mexico, Pittsfield, Fulton, Bowling Green, and Quincy 733 PM CST Wed Dec 24 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM CST THURSDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...Until 10 AM CST 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. && $$ Jaja Action: Continued Issued At: 2025-12-25 00:06:06 082 WWUS73 KLSX 250605 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 1205 AM CST Thu Dec 25 2025 MOZ060-061-251600- /O.EXA.KLSX.FG.Y.0018.000000T0000Z-251225T1600Z/ Warren MO-Saint Charles MO- Including the cities of Saint Charles 1205 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Saint Charles MO and Warren MO Counties. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ ILZ058>060-064-065-095>100-MOZ018-019-026-027-034>036-041-042- 050>052-251600- /O.CON.KLSX.FG.Y.0018.000000T0000Z-251225T1600Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Adams IL- Brown IL-Pike IL-Calhoun IL-Jersey IL-Madison IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO- Including the cities of Alton, Fulton, Vandalia, Quincy, Hannibal, Mount Sterling, Mexico, Edwardsville, Pittsfield, Litchfield, Columbia, and Bowling Green 1205 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...Until 10 AM CST 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. && $$ Maples Action: Area Extended Issued At: 2025-12-25 00:06:06 082 WWUS73 KLSX 250605 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 1205 AM CST Thu Dec 25 2025 MOZ060-061-251600- /O.EXA.KLSX.FG.Y.0018.000000T0000Z-251225T1600Z/ Warren MO-Saint Charles MO- Including the cities of Saint Charles 1205 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Saint Charles MO and Warren MO Counties. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ ILZ058>060-064-065-095>100-MOZ018-019-026-027-034>036-041-042- 050>052-251600- /O.CON.KLSX.FG.Y.0018.000000T0000Z-251225T1600Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Adams IL- Brown IL-Pike IL-Calhoun IL-Jersey IL-Madison IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO- Including the cities of Alton, Fulton, Vandalia, Quincy, Hannibal, Mount Sterling, Mexico, Edwardsville, Pittsfield, Litchfield, Columbia, and Bowling Green 1205 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...Until 10 AM CST 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. && $$ Maples Action: Time Extended Issued At: 2025-12-25 08:30:42 048 WWUS73 KLSX 251430 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 830 AM CST Thu Dec 25 2025 ILZ058>060-064-065-095>100-MOZ018-019-026-027-034>036-041-042- 050>052-060-061-251800- /O.EXT.KLSX.FG.Y.0018.000000T0000Z-251225T1800Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Adams IL- Brown IL-Pike IL-Calhoun IL-Jersey IL-Madison IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-Warren MO-Saint Charles MO- Including the cities of Columbia, Pittsfield, Quincy, Vandalia, Alton, Litchfield, Edwardsville, Mexico, Saint Charles, Mount Sterling, Hannibal, Bowling Green, and Fulton 830 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON CST TODAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, and northeast Missouri. * WHEN...Until noon CST today. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Kimble Action: Expired Issued At: 2025-12-25 11:51:17 177 WWUS73 KLSX 251750 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 1150 AM CST Thu Dec 25 2025 ILZ058>060-064-065-098>100-MOZ041-042-050>052-060-061-251900- /O.EXP.KLSX.FG.Y.0018.000000T0000Z-251225T1800Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Calhoun IL- Jersey IL-Madison IL-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-Warren MO-Saint Charles MO- Including the cities of Columbia, Vandalia, Alton, Edwardsville, Litchfield, Mexico, Saint Charles, and Fulton 1150 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY WILL EXPIRE AT NOON CST TODAY... Visibility is improving today. $$ ILZ095>097-MOZ018-019-026-027-034>036-260900- /O.EXT.KLSX.FG.Y.0018.000000T0000Z-251226T1500Z/ Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Pittsfield, Quincy, Mount Sterling, Hannibal, and Bowling Green 1150 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM CST FRIDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Illinois, Adams IL, Brown IL, and Pike IL Counties. In Missouri, Knox MO, Lewis MO, Marion MO, Monroe MO, Pike MO, Ralls MO, and Shelby MO Counties. * WHEN...Until 9 AM CST Friday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Kimble Action: Time Extended Issued At: 2025-12-25 11:51:17 177 WWUS73 KLSX 251750 NPWLSX URGENT - WEATHER MESSAGE National Weather Service St Louis MO 1150 AM CST Thu Dec 25 2025 ILZ058>060-064-065-098>100-MOZ041-042-050>052-060-061-251900- /O.EXP.KLSX.FG.Y.0018.000000T0000Z-251225T1800Z/ Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Calhoun IL- Jersey IL-Madison IL-Boone MO-Audrain MO-Callaway MO-Montgomery MO-Lincoln MO-Warren MO-Saint Charles MO- Including the cities of Columbia, Vandalia, Alton, Edwardsville, Litchfield, Mexico, Saint Charles, and Fulton 1150 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY WILL EXPIRE AT NOON CST TODAY... Visibility is improving today. $$ ILZ095>097-MOZ018-019-026-027-034>036-260900- /O.EXT.KLSX.FG.Y.0018.000000T0000Z-251226T1500Z/ Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Monroe MO-Ralls MO-Pike MO- Including the cities of Pittsfield, Quincy, Mount Sterling, Hannibal, and Bowling Green 1150 AM CST Thu Dec 25 2025 ...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM CST FRIDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Illinois, Adams IL, Brown IL, and Pike IL Counties. In Missouri, Knox MO, Lewis MO, Marion MO, Monroe MO, Pike MO, Ralls MO, and Shelby MO Counties. * WHEN...Until 9 AM CST Friday. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ Kimble | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||