Alert archive / Iowa / Freezing Rain Advisories in 2015
Freezing Rain Advisory 2, NWS Des Moines, IA
NWS Des Moines, IA issued this freezing rain advisory at Nov 26, 2015, 4:13 AM CST for 16 counties in Iowa. It took effect at Nov 26, 2015, 12:00 PM CST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Nov 26, 2015, 4:13 AM CST (10:13 UTC)
- In effect from
- Nov 26, 2015, 12:00 PM CST
- Expired
- Nov 27, 2015, 2:27 AM CST
- In force
- 14 hr
- Issued by
- NWS Des Moines, IA
Counties Adair County, IA, Adams County, IA, Audubon County, IA, Cass County, IA, Clarke County, IA, Decatur County, IA, Guthrie County, IA, Jasper County, IA, Lucas County, IA, Madison County, IA, Marion County, IA, Poweshiek County, IA, Ringgold County, IA, Taylor County, IA, Union County, IA, Warren County, IA
The radar
The Des Moines radar (KDMX), 60 km from the middle of the area, began a volume at 10:16 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
Omaha, NE (KOAX), launched 00:00Z, 10.2 hours before the alert went out and 199 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
- 753 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 205 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freezing rain advisory 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 freezing rain advisory went out at Nov 26, 3:37 AM CST, 36 minutes earlier.
Area forecast discussion, Nov 26, 3:37 AM CST, 36 minutes before
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</html>Hazardous weather outlook, Nov 25, 5:43 PM CST, 10 hours 30 minutes before
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</html>Nearby
Freezing Rain Advisories in Iowa, 2015Every freezing rain advisory in 2015
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.