Alert archive / Missouri / Cold Weather Advisories in 2025

Cold Weather Advisory 2, NWS St. Louis, MO

January 20, 202529 counties in Missouri; 17 counties in Illinois

NWS St. Louis, MO issued this cold weather advisory at Jan 20, 2025, 2:45 AM CST for 29 counties in Missouri; 17 counties in Illinois. It took effect at Jan 21, 2025, 12:00 AM CST. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Jan 20, 2025, 2:45 AM CST (08:45 UTC)
In effect from: Jan 21, 2025, 12:00 AM CST
Expired: Jan 21, 2025, 3:00 PM CST
In force: 15 hr
Issued by: NWS St. Louis, MO

All 46 counties

Adams County, IL, Bond County, IL, Brown County, IL, Calhoun County, IL, Clinton County, IL, Fayette County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Marion County, IL, Monroe County, IL, Montgomery County, IL, Pike County, IL, Randolph County, IL, Saint Clair County, IL, Washington County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, City of Saint Louis, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Iron County, MO, Jefferson County, MO, Knox County, MO, Lewis County, MO, Lincoln County, MO, Madison County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Ralls County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 18 km from the middle of the area, began a volume at 08:45 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 forecasters said that day

The local office's own words before this cold weather advisory 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 cold weather advisory went out at Jan 19, 10:09 PM CST, 4 hours 36 minutes earlier.

Area forecast discussion, Jan 19, 10:09 PM CST, 4 hours 36 minutes before

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Nearby

Cold Weather Advisories in Missouri, 2025 Cold Weather Advisories in Illinois, 2025 Every cold weather advisory in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.