Alert archive / Missouri / Winter Weather Advisories in 2014
Winter Weather Advisory 2, NWS St. Louis, MO
NWS St. Louis, MO issued this winter weather advisory at Jan 4, 2014, 3:31 AM CST for 12 counties in Missouri; Adams County, Brown County, Pike County, Illinois. It took effect at Jan 4, 2014, 3:00 PM CST. It was in force for 33 hr.
The area
The counties it named.
The facts
- Issued
- Jan 4, 2014, 3:31 AM CST (09:31 UTC)
- In effect from
- Jan 4, 2014, 3:00 PM CST
- Expired
- Jan 6, 2014, 12:00 AM CST
- In force
- 33 hr
- Issued by
- NWS St. Louis, MO
Counties Adams County, IL, Brown County, IL, Pike County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, Cole County, MO, Knox County, MO, Lewis County, MO, Marion County, MO, Moniteau County, MO, Monroe County, MO, Pike County, MO, Ralls County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 124 km from the middle of the area, began a volume at 09:30 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 00:00Z, 9.5 hours before the alert went out and 262 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
- 991 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 576 m²/s²
- 0-3 km storm-relative helicity
- 767 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter 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 winter weather advisory went out at Jan 4, 3:19 AM CST, 12 minutes earlier.
Area forecast discussion, Jan 4, 3:19 AM CST, 12 minutes before
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</html>Hazardous weather outlook, Jan 3, 3:58 PM CST, 11 hours 33 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 4, 3:31 AM CST | Winter Storm Warning | LSX | Audrain, Boone, Callaway, Cole, Crawford, Franklin and 18 more | 44 hr |
| Jan 4, 4:13 PM CST | Wind Chill Warning | LSX | Audrain, Boone, Callaway, Cole, Crawford, Franklin and 23 more | 68 hr |
Nearby
Winter Weather Advisories in Missouri, 2014Winter Weather Advisories in Illinois, 2014Every winter weather advisory in 2014
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.