Alert archive / Missouri / Winter Storm Warnings in 2023
Winter Storm Warning 1, NWS St. Louis, MO
NWS St. Louis, MO issued this winter storm warning at Jan 23, 2023, 2:12 PM CST for 12 counties in Illinois; 14 counties in Missouri. It took effect at Jan 24, 2023, 6:00 PM CST. It was in force for 15 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jan 23, 2023, 2:12 PM CST (20:12 UTC)
- In effect from
- Jan 24, 2023, 6:00 PM CST
- Expired
- Jan 25, 2023, 9:14 AM CST
- In force
- 15 hr
- Issued by
- NWS St. Louis, MO
All 26 counties
Bond County, IL, Clinton County, IL, Fayette County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, City of Saint Louis, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Madison County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Warren County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 50 km from the middle of the area, began a volume at 20:13 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jan 24, 10:04 PM CST | SNOW 0.5 | Viburnum, MO | |
| Jan 25, 12:08 AM CST | SNOW 2 | Irondale, MO | |
| Jan 25, 4:15 AM CST | HEAVY SNOW 6 | 7 Ssw Fredericktown, MO | FROM PUBLIC RELAYED VIA MEDIA PARTNER. |
| Jan 25, 4:44 AM CST | SNOW 0.5 | Defiance, MO | SNOW ALSO BEGINNING TO ACCUMULATE ON DRIVEWAY. |
| Jan 25, 4:51 AM CST | SNOW 1.7 | Crestwood, MO | TOTAL SO FAR. 1.3 INCHES FALLING IN THE LAST HOUR. |
| Jan 25, 5:00 AM CST | SNOW 3.5 | De Soto, MO | VIA SOCIAL MEDIA. |
| Jan 25, 5:00 AM CST | SNOW 4.5 | Steelville, MO | VIA SOCIAL MEDIA. |
| Jan 25, 5:00 AM CST | SNOW 5.5 | 4 Sw Potosi, MO | TOTAL SO FAR. 0.66 INCHES OF LIQUID EQUIVALENT--COMPACTION SUSPECTED. |
| Jan 25, 5:30 AM CST | HEAVY SNOW 8 | 1 Se Farmington, MO | VIA SOCIAL MEDIA. |
| Jan 25, 5:46 AM CST | SNOW 3 | 2 Sse Percy, IL | VIA SOCIAL MEDIA. |
| Jan 25, 5:57 AM CST | SNOW 1.6 | 1 Nnw Woodson Terrace, MO | FROM KSTL OBSERVER. |
| Jan 25, 6:00 AM CST | SNOW 0.8 | 1 N Weldon Spring, MO | |
| Jan 25, 6:00 AM CST | SNOW 0.9 | 2 Wsw Weldon Spring, MO | AT WFO ST. LOUIS. |
| Jan 25, 6:00 AM CST | SNOW 3 | 1 Nne Festus, MO | |
| Jan 25, 6:00 AM CST | SNOW 3 | Salem, IL | |
| Jan 25, 6:00 AM CST | SNOW 6 | Park Hills, MO | VIA SOCIAL MEDIA. |
| Jan 25, 6:00 AM CST | HEAVY SNOW 7.2 | Modoc, IL | |
| Jan 25, 6:00 AM CST | SNOW 8 | 1 Ne Farmington, MO | |
| Jan 25, 6:01 AM CST | SNOW 2 | Sparta, IL | VIA SOCIAL MEDIA. TOTAL SO FAR. |
| Jan 25, 6:03 AM CST | SNOW 0.7 | Saint Peters, MO | STORM TOTAL SNOWFALL REPORTED VIA TWITTER. |
| Jan 25, 6:03 AM CST | SNOW 6.5 | Desloge, MO | VIA SOCIAL MEDIA. MEASURED ON A DECK RAILING. |
| Jan 25, 6:07 AM CST | SNOW 4 | Belgrade, MO | HEAVIEST SNOW PASSED. REPORTED VIA FACEBOOK. |
| Jan 25, 6:30 AM CST | SNOW 4 | Saint Rose, IL | MEASURED BEFORE END OF SNOW. |
| Jan 25, 6:45 AM CST | SNOW 2.5 | Cahokia, IL | REPORTED VIA TWITTER. |
| Jan 25, 6:45 AM CST | SNOW 4 | Spanish Lake, MO | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. |
| Jan 25, 6:45 AM CST | SNOW 5.5 | High Ridge, MO | HEAVIEST SNOW PASSED. REPORTED VIA FACEBOOK. PICTURE OF MEASUREMENT INCLUDED. |
| Jan 25, 6:47 AM CST | HEAVY SNOW 7 | Farmington, MO | VIA SOCIAL MEDIA. TAKEN ON A WOOD DECK RAILING. |
| Jan 25, 6:50 AM CST | SNOW 1 | 1 Nnw Peerless Park, MO | FROM ST. LOUIS COUNTY EOC. |
| Jan 25, 6:50 AM CST | SNOW 3 | Arnold, MO | LIGHT SNOW STILL FALLING. REPORTED VIA TWITTER. |
| Jan 25, 6:59 AM CST | SNOW 2.5 | De Soto, MO | HEAVIEST SNOW HAS PASSED. REPORTED VIA TWITTER. PICTURE OF MEASUREMENT INCLUDED. |
| Jan 25, 6:59 AM CST | SNOW 5.8 | Antonia, MO | HEAVIEST SNOW HAS PASSED. REPORTED VIA TWITTER. |
| Jan 25, 7:00 AM CST | SNOW 0.3 | Washington, MO | |
| Jan 25, 7:00 AM CST | SNOW 2 | 1 E Byrnes Mill, MO | VIA SOCIAL MEDIA. |
| Jan 25, 7:00 AM CST | SNOW 2 | 3 Sw Maryland Heights, MO | |
| Jan 25, 7:00 AM CST | SNOW 2.5 | 1 Sw Jerseyville, IL | |
| Jan 25, 7:00 AM CST | SNOW 3 | De Soto, MO | VIA SOCIAL MEDIA. ON AN ELEVATED DECK. 1 INCH ON UNTREATED LOT. |
| Jan 25, 7:00 AM CST | SNOW 3 | Viburnum, MO | |
| Jan 25, 7:00 AM CST | SNOW 4 | Kell, IL | VIA SOCIAL MEDIA. |
| Jan 25, 7:00 AM CST | SNOW 4.2 | 1 W Kimmswick, MO | VIA SOCIAL MEDIA WITH PICTURE. |
| Jan 25, 7:00 AM CST | SNOW 5 | 2 E Valmeyer, IL | |
| Jan 25, 7:00 AM CST | HEAVY SNOW 6.3 | 1 Nne Ironton, MO | VIA SOCIAL WITH PICTURE. TAKEN IN OPEN YARD. |
| Jan 25, 7:05 AM CST | SNOW 1.5 | 1 E Eureka, MO | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. |
| Jan 25, 7:05 AM CST | SNOW 1.5 | 1 E Eureka, MO | VIA SOCIAL MEDIA. |
| Jan 25, 7:10 AM CST | SNOW 3 | 2 Ssw Arnold, MO | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. |
| Jan 25, 7:11 AM CST | SNOW 5 | Hillsboro, MO | HEAVIEST SNOW IS OVER, LIGHT SNOW CONTINUES. |
| Jan 25, 7:15 AM CST | SNOW 2.3 | Crestwood, MO | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. |
| Jan 25, 7:15 AM CST | HEAVY SNOW 6.3 | 2 S Otto, MO | VIA SOCIAL MEDIA. AVERAGE OF MULTIPLE MEASUREMENTS. |
| Jan 25, 7:20 AM CST | SNOW 5 | Potosi, MO | HEAVIEST SNOW PASSED. REPORTED VIA FACEBOOK. PICTURE OF MEASUREMENT INCLUDED. |
| Jan 25, 7:20 AM CST | HEAVY SNOW 6.3 | Richwoods, MO | VIA SOCIAL MEDIA WITH PICTURE. |
| Jan 25, 7:21 AM CST | SNOW 3 | 3 Nnw Walnut Hill, IL | VIA SOCIAL MEDIA. |
| Jan 25, 7:22 AM CST | SNOW 3 | Imperial, MO | HEAVIEST SNOW PASSED. REPORTED VIA FACEBOOK. PICTURE OF MEASUREMENT INCLUDED. |
| Jan 25, 7:25 AM CST | SNOW 2.5 | 2 Nnw Kimmswick, MO | VIA SOCIAL MEDIA WITH PICTURE. |
| Jan 25, 7:25 AM CST | SNOW 2.8 | Cedar Hill, MO | VIA SOCIAL MEDIA WITH PICTURE. |
| Jan 25, 7:26 AM CST | SNOW 0.8 | Mascoutah, IL | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. |
| Jan 25, 7:26 AM CST | SNOW 2 | Belleville, IL | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. PICTURE OF MEASUREMENT INCLUDED. |
| Jan 25, 7:26 AM CST | SNOW 3 | Bethalto, IL | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. PICTURE OF MEASUREMENT INCLUDED. |
| Jan 25, 7:26 AM CST | SNOW 4 | De Soto, MO | VIA SOCIAL MEDIA WITH PICTURE. |
| Jan 25, 7:30 AM CST | SNOW 1.7 | Brentwood, MO | |
| Jan 25, 7:30 AM CST | SNOW 2 | Mehlville, MO | HEAVIEST SNOW PASSED. REPORTED VIA TWITTER. |
| Jan 25, 7:30 AM CST | SNOW 2.3 | 1 E Chesterfield, MO | VIA SOCIAL MEDIA WITH PICTURE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.2 hours before the alert went out and 240 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 723 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
929 WWUS43 KLSX 232012 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 212 PM CST Mon Jan 23 2023 ILZ059-060-064-065-069-070-074-079-100>102-MOZ059>065-072>075-084- 085-099-241115- /O.UPG.KLSX.WS.A.0001.230125T0000Z-230126T0000Z/ /O.NEW.KLSX.WS.W.0001.230125T0000Z-230126T0300Z/ Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL- Washington IL-Randolph IL-Madison IL-Saint Clair-Monroe IL- Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-Washington MO- Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Edwardsville, Farmington, Cahokia, Sparta, Alton, Washington, Sullivan, Saint Louis, Centralia, Union, Saint Charles, Belleville, Salem, Litchfield, Chester, and Vandalia 212 PM CST Mon Jan 23 2023 ...WINTER STORM WARNING IN EFFECT FROM 6 PM TUESDAY TO 9 PM CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...From 6 PM Tuesday to 9 PM CST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. && $$ ILZ058-095>099-MOZ018-019-026-027-034>036-041-042-047>052-241115- /O.NEW.KLSX.WW.Y.0002.230125T0300Z-230126T0300Z/ Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO- Including the cities of Mount Sterling, Pittsfield, Bowling Green, Fulton, Quincy, Columbia, Hannibal, Mexico, and Jefferson City 212 PM CST Mon Jan 23 2023 ...WINTER WEATHER ADVISORY IN EFFECT FROM 9 PM TUESDAY TO 9 PM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Portions of southwest and west central Illinois. Portions of central, east central, and northeast Missouri. * WHEN...From 9 PM Tuesday to 9 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ MRB
6 follow-up statements
418 WWUS43 KLSX 240251 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 851 PM CST Mon Jan 23 2023 ILZ059-060-064-065-069-070-074-079-100>102-MOZ059>065-072>075-084- 085-099-241800- /O.CON.KLSX.WS.W.0001.230125T0000Z-230126T0300Z/ Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL- Washington IL-Randolph IL-Madison IL-Saint Clair-Monroe IL- Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-Washington MO- Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Farmington, Centralia, Litchfield, Sparta, Alton, Cahokia, Belleville, Vandalia, Chester, Saint Louis, Saint Charles, Salem, Edwardsville, Union, Washington, and Sullivan 851 PM CST Mon Jan 23 2023 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM TUESDAY TO 9 PM CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations between 5 and 10 inches. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...From 6 PM Tuesday to 9 PM CST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. && $$ ILZ058-095>099-MOZ018-019-026-027-034>036-041-042-047>052-241800- /O.CON.KLSX.WW.Y.0002.230125T0300Z-230126T0300Z/ Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO- Including the cities of Quincy, Mexico, Jefferson City, Mount Sterling, Columbia, Pittsfield, Bowling Green, Hannibal, and Fulton 851 PM CST Mon Jan 23 2023 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM TUESDAY TO 9 PM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Portions of southwest and west central Illinois. Portions of central, east central, and northeast Missouri. * WHEN...From 9 PM Tuesday to 9 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ Gosselin
652 WWUS43 KLSX 240909 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 309 AM CST Tue Jan 24 2023 ILZ099-250015- /O.UPG.KLSX.WW.Y.0002.230125T0300Z-230126T0300Z/ /O.EXB.KLSX.WS.W.0001.230125T0000Z-230126T0000Z/ Jersey IL- 309 AM CST Tue Jan 24 2023 ...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 6 inches. * WHERE...Jersey IL County. * WHEN...From 6 PM this evening to 6 PM CST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. The latest road conditions can be obtained at www.gettingaroundillinois.com. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. && $$ ILZ059-060-064-065-069-070-074-079-100>102-MOZ059>065-072>075-084- 085-099-250015- /O.EXT.KLSX.WS.W.0001.230125T0000Z-230126T0000Z/ Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL- Washington IL-Randolph IL-Madison IL-Saint Clair-Monroe IL- Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-Washington MO- Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Belleville, Vandalia, Chester, Salem, Sparta, Saint Charles, Washington, Centralia, Litchfield, Union, Alton, Farmington, Sullivan, Saint Louis, Cahokia, and Edwardsville 309 AM CST Tue Jan 24 2023 ...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 7 inches. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...From 6 PM this evening to 6 PM CST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. && $$ ILZ058-095>098-MOZ018-019-026-027-034>036-041-042-047>052-250015- /O.EXT.KLSX.WW.Y.0002.230125T0300Z-230126T0000Z/ Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-Lincoln MO- Including the cities of Jefferson City, Pittsfield, Mexico, Mount Sterling, Columbia, Bowling Green, Fulton, Quincy, and Hannibal 309 AM CST Tue Jan 24 2023 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Portions of southwest and west central Illinois. Portions of central, east central, and northeast Missouri. * WHEN...From 9 PM this evening to 6 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ Elmore
794 WWUS43 KLSX 242013 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 213 PM CST Tue Jan 24 2023 ILZ059-060-064-065-069-070-074-079-099>102-MOZ059>065-072>075-084- 085-099-251415- /O.CON.KLSX.WS.W.0001.230125T0000Z-230126T0000Z/ Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL- Washington IL-Randolph IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO- Reynolds MO- Including the cities of Salem, Saint Louis, Sullivan, Edwardsville, Union, Sparta, Farmington, Saint Charles, Cahokia, Alton, Litchfield, Washington, Vandalia, Chester, Belleville, and Centralia 213 PM CST Tue Jan 24 2023 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 PM CST WEDNESDAY... * WHAT...Heavy snow expected. Total snow accumulations between 4 and 9 inches. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...From 6 PM this evening to 6 PM CST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. Remember that shoveling snow is hard work, even for those in good physical condition. Be certain to take frequent breaks, and dress warmly. && $$ ILZ058-095>098-MOZ018-019-026-027-034>036-041-042-047>052-251415- /O.CON.KLSX.WW.Y.0002.230125T0300Z-230126T0000Z/ Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO-Lincoln MO- Including the cities of Pittsfield, Hannibal, Jefferson City, Fulton, Mexico, Bowling Green, Columbia, Mount Sterling, and Quincy 213 PM CST Tue Jan 24 2023 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING TO 6 PM CST WEDNESDAY... * WHAT...Snow expected. Total snow accumulations between 1 and 3 inches. * WHERE...Portions of southwest and west central Illinois. Portions of central, east central, and northeast Missouri. * WHEN...From 9 PM this evening to 6 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ MRB
264 WWUS43 KLSX 250319 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 919 PM CST Tue Jan 24 2023 ILZ059-060-064-065-069-070-074-079-099>102-MOZ059>065-072>075-084- 085-099-251800- /O.EXT.KLSX.WS.W.0001.000000T0000Z-230125T1800Z/ Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL- Washington IL-Randolph IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO-Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO- Reynolds MO- Including the cities of Washington, Saint Louis, Union, Sullivan, Vandalia, Litchfield, Belleville, Saint Charles, Centralia, Cahokia, Edwardsville, Farmington, Chester, Alton, Salem, and Sparta 919 PM CST Tue Jan 24 2023 ...WINTER STORM WARNING NOW IN EFFECT UNTIL NOON CST WEDNESDAY... * WHAT...Heavy snow. Additional snow accumulations between 3 and 8 inches. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...Until Noon CST Wednesday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Wednesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. Remember that shoveling snow is hard work, even for those in good physical condition. Be certain to take frequent breaks, and dress warmly. && $$ MOZ034-041-042-047>051-251800- /O.EXT.KLSX.WW.Y.0002.000000T0000Z-230125T1800Z/ Monroe MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO- Callaway MO-Montgomery MO- Including the cities of Jefferson City, Columbia, Mexico, and Fulton 919 PM CST Tue Jan 24 2023 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL NOON CST WEDNESDAY... * WHAT...Snow. Additional snow accumulations between 1 and 3 inches. * WHERE...Portions of central, east central, and northeast Missouri. * WHEN...Until Noon CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ ILZ058-095>098-MOZ018-019-026-027-035-036-052-251830- /O.CON.KLSX.WW.Y.0002.000000T0000Z-230126T0000Z/ Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Ralls MO-Pike MO-Lincoln MO- Including the cities of Pittsfield, Bowling Green, Mount Sterling, Quincy, and Hannibal 919 PM CST Tue Jan 24 2023 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST WEDNESDAY... * WHAT...Snow. Additional snow accumulations between 1 and 3 inches. * WHERE...Portions of southwest and west central Illinois. Portions of east central and northeast Missouri. * WHEN...Until 6 PM CST Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. && $$ Gosselin
264 WWUS43 KLSX 250913 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 313 AM CST Wed Jan 25 2023 ILZ059-099-100-MOZ060-061-063-064-260000- /O.CAN.KLSX.WS.W.0001.000000T0000Z-230125T1800Z/ /O.EXA.KLSX.WW.Y.0002.000000T0000Z-230126T0000Z/ Macoupin IL-Jersey IL-Madison IL-Warren MO-Saint Charles MO-Saint Louis MO-Saint Louis City MO- Including the cities of Edwardsville, Saint Louis, Alton, and Saint Charles 313 AM CST Wed Jan 25 2023 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... ...WINTER STORM WARNING IS CANCELLED... * WHAT...Snow. Additional snow accumulations between 1 and 3 inches. * WHERE...Portions of southwest Illinois. Portions of east central Missouri. * WHEN...Until 6 PM CST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. && $$ ILZ060-064-065-069-070-074-079-101-102-MOZ059-062-065-072>075-084- 085-099-251800- /O.CON.KLSX.WS.W.0001.000000T0000Z-230125T1800Z/ Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-Saint Clair-Monroe IL-Gasconade MO-Franklin MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Salem, Chester, Washington, Litchfield, Centralia, Farmington, Sparta, Belleville, Cahokia, Sullivan, Vandalia, and Union 313 AM CST Wed Jan 25 2023 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Heavy snow. Additional snow accumulations between 1 and 3 inches. * WHERE...Portions of south central and southwest Illinois. Portions of east central and southeast Missouri. * WHEN...Until Noon CST today. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... The rapid accumulation of snow will make travel extremely difficult, if not impossible. If travel is necessary, be sure to exercise extreme caution. If you must travel, keep an extra flashlight, food and water in your vehicle in case of an emergency. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Persons should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary. Those planning travel should be advised that visibilities will vary greatly across the area, and weather conditions in rural areas will be much worse than those in a nearby town or city. Do not be fooled, if you are planning travel in an open area, make certain you and your car are prepared for the elements. Although treated roads may just be wet, untreated surfaces will be ice covered and very slippery. Motorists should remain alert for rapid changes in road conditions, especially when turning onto lesser travelled roads, side streets, or parking lots. Remember that shoveling snow is hard work, even for those in good physical condition. Be certain to take frequent breaks, and dress warmly. && $$ ILZ058-095>098-MOZ018-019-026-027-035-036-052-260000- /O.CON.KLSX.WW.Y.0002.000000T0000Z-230126T0000Z/ Greene IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Knox MO-Lewis MO- Shelby MO-Marion MO-Ralls MO-Pike MO-Lincoln MO- Including the cities of Pittsfield, Bowling Green, Hannibal, Quincy, and Mount Sterling 313 AM CST Wed Jan 25 2023 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Snow. Additional snow accumulations up to two inches. * WHERE...Portions of southwest and west central Illinois. Portions of east central and northeast Missouri. * WHEN...Until 6 PM CST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning and evening commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. && $$ MOZ034-041-042-047>051-251800- /O.CON.KLSX.WW.Y.0002.000000T0000Z-230125T1800Z/ Monroe MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO- Callaway MO-Montgomery MO- Including the cities of Fulton, Columbia, Jefferson City, and Mexico 313 AM CST Wed Jan 25 2023 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY... * WHAT...Snow. Additional snow accumulations up to one inch. * WHERE...Portions of central, east central, and northeast Missouri. * WHEN...Until Noon CST today. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Wednesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury. && $$ Elmore
692 WWUS43 KLSX 251514 WSWLSX URGENT - WINTER WEATHER MESSAGE National Weather Service St Louis MO 914 AM CST Wed Jan 25 2023 ILZ060-064-065-069-070-074-079-101-102-MOZ059-062-065-072>075-084- 085-099-251615- /O.CAN.KLSX.WS.W.0001.000000T0000Z-230125T1800Z/ Montgomery IL-Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL-Saint Clair-Monroe IL-Gasconade MO-Franklin MO- Jefferson MO-Crawford MO-Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO-Madison MO-Reynolds MO- Including the cities of Centralia, Chester, Sparta, Washington, Litchfield, Salem, Belleville, Cahokia, Farmington, Union, Vandalia, and Sullivan 914 AM CST Wed Jan 25 2023 ...WINTER STORM WARNING IS CANCELLED... Snow is tapering off...or has ended across the warning area. Additionally, temperatures will continue to rise slowly into the mid 30s this morning, which will make any additional accumulation on roadways highly unlikely. Therefore the Winter Storm Warning is cancelled. $$ MOZ034-041-042-047>051-251615- /O.CAN.KLSX.WW.Y.0002.000000T0000Z-230125T1800Z/ Monroe MO-Boone MO-Audrain MO-Moniteau MO-Cole MO-Osage MO- Callaway MO-Montgomery MO- Including the cities of Fulton, Mexico, Columbia, and Jefferson City 914 AM CST Wed Jan 25 2023 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow is tapering off...or has ended across the advisory area. Additionally, temperatures will continue to rise slowly into the mid 30s this morning, which will make any additional accumulation on roadways highly unlikely. Therefore the Winter Weather Advisory is cancelled. $$ ILZ058-059-095>100-MOZ018-019-026-027-035-036-052-060-061-063-064- 260000- /O.CON.KLSX.WW.Y.0002.000000T0000Z-230126T0000Z/ Greene IL-Macoupin IL-Adams IL-Brown IL-Pike IL-Calhoun IL-Jersey IL-Madison IL-Knox MO-Lewis MO-Shelby MO-Marion MO-Ralls MO-Pike MO-Lincoln MO-Warren MO-Saint Charles MO-Saint Louis MO-Saint Louis City MO- Including the cities of Mount Sterling, Alton, Edwardsville, Hannibal, Saint Charles, Bowling Green, Pittsfield, Quincy, and Saint Louis 914 AM CST Wed Jan 25 2023 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Snow. Additional light snow accumulations remain possible. * WHERE...Portions of southwest and west central Illinois. Portions of east central and northeast Missouri. * WHEN...Until 6 PM CST this evening. * IMPACTS...Continue to be cautious on area roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. In Illinois, the latest road conditions can be obtained at www.gettingaroundillinois.com. In Missouri, the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636. && $$ Carney
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this winter storm warning went out at Jan 23, 11:51 AM CST, 2 hours 21 minutes earlier.
Area forecast discussion, Jan 23, 11:51 AM CST, 2 hours 21 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
1151 AM CST Mon Jan 23 2023
.SHORT TERM... (Through Wednesday Night)
Issued at 342 AM CST Mon Jan 23 2023
Key Messages:
1) Confidence is high (>90%) that a winter storm will
produce accumulating snow and impact the region Tuesday night into
Wednesday evening.
2) Impacts to travel are expected area-wide, especially during the
Wednesday morning commute for areas along and south of I-44 in
Missouri and I-70 in Illinois.
Current water vapor imagery shows an upper-level trough over the
Midwest pushing eastward, with northwest flow on the backside of the
trough moving over the CWA. At the surface, an area of high pressure
centered over the Central Plains has the CWA in weak northwesterly
flow at the surface. Through the day, the surface high will quickly
move eastward, causing winds to gradually shift to out of the
southwest through the day. Depending on how soon this occurs, we
may see temperatures rise above what is currently forecast due to
downsloping off the Ozarks.
Upper-level ridging will briefly move over the Middle Mississippi
Valley tomorrow ahead of a trough digging across the Desert
Southwest. This, and sustained southerly to southwesterly flow will
help temperatures rise by a couple of degrees over what is expected
today.
Our primary focus remains on a winter storm that is set to move
into the area Tuesday night with impacts expected through
Wednesday. As the aforementioned trough ejects out into the
Southern Plains, the right entrance and left exit regions of two
jet streaks will combine to deepen a surface low as the low enters
the Mid South. As it does so, isentropic lift will lead to
precipitation overspreading the CWA from the south/southwest to
the north/northeast. This precipitation is expected to fall
primarily as snow, as the consensus among model soundings is that
the DGZ will be fully saturated, leading to ice crystal
development and growth. Additionally, temperatures through the
middle and lower atmosphere are expected to be below freezing, so
melting aloft is not expected. Lift focused in the DGZ and weak
winds through the lower atmosphere support SLRs generally at to
just above climatology. While temperatures for locations mainly
across southeastern Missouri and southwestern Illinois will
initially be just above freezing at the surface, high snow rates
(approaching 1" an hour at times) in this portion of the area will
overcome these temperatures to produce accumulating snowfall. In
fact, snowfall will likely cause temperatures to drop by a few
degrees thanks to dynamic and evaporative cooling. The snowfall
rates are expected to be highest leading up to sunrise and the
Wednesday morning commute.
Given the expected trajectory of the surface and 850mb low,
climatology favors locations along and south of I-44 in Missouri and
I-70 in Illinois seeing the greatest snowfall, with accumulations
here toping out roughly 6-8". For these locations, a Winter Storm
Watch is in effect and was expanded slightly to account for a bump
in totals a little further northward. North of the Watch area,
totals are expected to be generally 3-5". There is still enough
spread among ensembles that leads me to believe that there could
still be a slight shift in where the heaviest snowfall occurs. A
slight adjustment of the system to the north could center the axis
of greatest accumulation along the I-44 MO/I-70 IL corridor.
While the heavier snow is expected to taper off through late
Wednesday morning and early afternoon, the chance for light snow
capable of roughly another 0.5" of accumulation will continue into
the evening as the deformation zone lingers across the area.
Elmore
.LONG TERM... (Thursday through Sunday)
Issued at 342 AM CST Mon Jan 23 2023
As the mid-week trough pushes eastward on Thursday, northwesterly
flow aloft will move over the Middle Mississippi Valley. Weak
shortwaves within this flow will pass over and near the CWA, and
while I have maintained a dry forecast for Thursday, I can't rule
out these shortwaves squeezing out some flurries to light snow
through the day.
There remains much uncertainty in the phasing of the upper-level
pattern as we get into the weekend. The general consensus is that
the trough responsible for our mid-week weather will push off of the
East Coast, and the upper-level flow across much of the CONUS will
deamplify and become quasi-zonal.
To what degree this flow becomes quasi-zonal is questionable, as
some ensemble members suggest flow becoming increasingly
southwesterly across the Middle Mississippi Valley through the
weekend, while others keep the flow more westerly. The significance
of this dictates the magnitude and trajectory of a shortwave set to
pass through the central CONUS. Most ensembles have precipitation
occurring over the CWA during the latter half of the weekend into
early next week, but understandably differ on timing given the
spread in the evolution of the upper-level pattern. Regardless,
those members that do have precipitation have relatively light
amounts. Depending on the timing of this precipitation, some of it
may fall as snow.
Elmore
&&
.AVIATION... (For the 18z TAFs through 18z Tuesday Afternoon)
Issued at 1136 AM CST Mon Jan 23 2023
Flight conditions will continue to improve today amidst dry
southwest winds aiding to scatter out the low stratus. While there
may be some redevelopment of MVFR clouds at KUIN tonight,
confidence is not high in that scenario. Otherwise, dry VFR
conditions are expected until Tuesday night, when a winter storm
will impact the region.
MRB
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Winter Storm Watch from Tuesday evening through Wednesday
afternoon for Crawford MO-Franklin MO-Gasconade MO-Iron MO-
Jefferson MO-Madison MO-Reynolds MO-Saint Charles MO-Saint
Francois MO-Saint Louis City MO-Saint Louis MO-Sainte
Genevieve MO-Warren MO-Washington MO.
IL...Winter Storm Watch from Tuesday evening through Wednesday
afternoon for Bond IL-Clinton IL-Fayette IL-Macoupin IL-
Madison IL-Marion IL-Monroe IL-Montgomery IL-Randolph IL-
Saint Clair-Washington IL.
&&
WFO LSXHazardous weather outlook, Jan 23, 3:55 AM CST, 10 hours 17 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 355 AM CST Mon Jan 23 2023 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-241000- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 355 AM CST Mon Jan 23 2023 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A winter storm is expected to traverse the region Tuesday night into Wednesday, bringing widespread accumulating snow. A Winter Storm Watch has been issued for locations generally along and south of Interstate 44 in Missouri and Interstate 70 in Illinois where the heaviest snowfall will occur. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. Elmore
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 23, 2:12 PM CST | Winter Weather Advisory | LSX | Adams, Brown, Calhoun, Greene, Jersey, Macoupin and 2 more | 45 hr |
Nearby
Winter Storm Warnings in Missouri, 2023Winter Storm Warnings in Illinois, 2023Every winter storm warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.