Alert archive / Iowa / Freeze Warnings in 2010
Freeze Warning 3, NWS Quad Cities, IA
NWS Quad Cities, IA issued this freeze warning at Oct 28, 2010, 3:21 AM CDT for 10 counties in Iowa; 9 counties in Illinois; Clark County, Scotland County, Missouri. It took effect at Oct 29, 2010, 12:00 AM CDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Oct 28, 2010, 3:21 AM CDT (08:21 UTC)
- In effect from
- Oct 29, 2010, 12:00 AM CDT
- Expired
- Oct 29, 2010, 9:00 AM CDT
- In force
- 9 hr
- Issued by
- NWS Quad Cities, IA
All 21 counties
Des Moines County, IA, Henry County, IA, Jefferson County, IA, Keokuk County, IA, Lee County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Bureau County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, McDonough County, IL, Mercer County, IL, Putnam County, IL, Rock Island County, IL, Warren County, IL, Clark County, MO, Scotland County, MO
The radar
The Quad Cities radar (KDVN), 78 km from the middle of the area, began a volume at 08:25 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
Lincoln, IL (KILX), launched 00:00Z, 8.4 hours before the alert went out and 230 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
- 2880 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Quad Cities, IA wrote its last area forecast discussion before this freeze warning went out at Oct 27, 3:27 PM CDT, 11 hours 54 minutes earlier.
Area forecast discussion, Oct 27, 3:27 PM CDT, 11 hours 54 minutes before
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</html>Hazardous weather outlook, Oct 27, 2:57 PM CDT, 12 hours 24 minutes before
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</html>Nearby
Freeze Warnings in Iowa, 2010Freeze Warnings in Illinois, 2010Freeze Warnings in Missouri, 2010Every freeze warning in 2010
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.