Alert archive / Iowa / Freeze Warnings in 2014
Freeze Warning 1, NWS Des Moines, IA
NWS Des Moines, IA issued this freeze warning at Oct 3, 2014, 3:53 PM CDT for 9 counties in Iowa. It took effect at Oct 4, 2014, 4:00 AM CDT. It was in force for 4 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 3, 2014, 3:53 PM CDT (20:53 UTC)
- In effect from
- Oct 4, 2014, 4:00 AM CDT
- Expired
- Oct 4, 2014, 8:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Des Moines, IA
Counties Adair County, IA, Adams County, IA, Audubon County, IA, Carroll County, IA, Cass County, IA, Crawford County, IA, Guthrie County, IA, Sac County, IA, Taylor County, IA
The radar
The Des Moines radar (KDMX), 94 km from the middle of the area, began a volume at 20:53 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
Topeka, KS (KFOE), launched 12:00Z, 8.9 hours before the alert went out and 295 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
- 1065 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- -106 m²/s²
- 0-3 km storm-relative helicity
- 65 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 Des Moines, IA wrote its last area forecast discussion before this freeze warning went out at Oct 2, 6:44 PM CDT, 21 hours 9 minutes earlier.
Area forecast discussion, Oct 2, 6:44 PM CDT, 21 hours 9 minutes before
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</html>Hazardous weather outlook, Oct 2, 3:55 PM CDT, 23 hours 58 minutes before
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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.