Alert archive / Missouri / Wind Chill Advisories in 2024
Wind Chill Advisory 1, NWS St. Louis, MO
NWS St. Louis, MO issued this wind chill advisory at Jan 12, 2024, 2:07 PM CST for 17 counties in Missouri; 12 counties in Illinois. It took effect at Jan 14, 2024, 12:00 AM CST. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Jan 12, 2024, 2:07 PM CST (20:07 UTC)
- In effect from
- Jan 14, 2024, 12:00 AM CST
- Expired
- Jan 17, 2024, 6:00 AM CST
- In force
- 3 days
- Issued by
- NWS St. Louis, MO
All 29 counties
Adams County, IL, Bond County, IL, Brown County, IL, Clinton County, IL, Fayette 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, Knox County, MO, Lewis County, MO, Madison County, MO, Marion County, MO, Reynolds County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 17 km from the middle of the area, began a volume at 20:10 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 8.1 hours before the alert went out and 329 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
- 513 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 429 m²/s²
- 0-3 km storm-relative helicity
- 634 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill 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 wind chill advisory went out at Jan 12, 11:22 AM CST, 2 hours 45 minutes earlier.
Area forecast discussion, Jan 12, 11:22 AM CST, 2 hours 45 minutes before
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</html>The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 12, 2:57 AM CST | Wind Chill Warning | LSX | Audrain, Boone, Callaway, Cole, Crawford, Franklin and 18 more | 4 days |
Nearby
Wind Chill Advisories in Missouri, 2024Wind Chill Advisories in Illinois, 2024Every wind chill advisory in 2024
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.