Alert archive / Nebraska / Hard Freeze Warnings in 2012
Hard Freeze Warning 1, NWS North Platte, NE
NWS North Platte, NE issued this hard freeze warning at Oct 6, 2012, 9:12 AM MDT for 7 counties in Nebraska. It took effect at Oct 6, 2012, 7:00 PM MDT. It was in force for 14 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 6, 2012, 9:12 AM MDT (15:12 UTC)
- In effect from
- Oct 6, 2012, 7:00 PM MDT
- Expired
- Oct 7, 2012, 9:00 AM MDT
- In force
- 14 hr
- Issued by
- NWS North Platte, NE
Counties Chase County, NE, Deuel County, NE, Frontier County, NE, Hayes County, NE, Keith County, NE, Lincoln County, NE, Perkins County, NE
The radar
The North Platte radar (KLNX), 142 km from the middle of the area, began a volume at 15:14 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
Denver, CO (KDNR), launched 12:00Z, 3.2 hours before the alert went out and 191 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
- 573 m above ground
- 0-6 km bulk shear
- 78 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this hard freeze warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS North Platte, NE wrote its last area forecast discussion before this hard freeze warning went out at Oct 5, 5:58 PM MDT, 15 hours 14 minutes earlier.
Area forecast discussion, Oct 5, 5:58 PM MDT, 15 hours 14 minutes before
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</html>Hazardous weather outlook, Oct 5, 5:43 PM MDT, 15 hours 29 minutes before
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Hard Freeze Warnings in Nebraska, 2012Every hard freeze warning in 2012
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.