Alert archive / Oklahoma / Freeze Warnings in 2012
Freeze Warning 6, NWS Norman, OK
NWS Norman, OK issued this freeze warning at Nov 12, 2012, 10:37 AM CST for Atoka County, Bryan County, Oklahoma. It took effect at Nov 12, 2012, 9:36 PM CST. It was in force for 11 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
- Nov 12, 2012, 10:37 AM CST (16:37 UTC)
- In effect from
- Nov 12, 2012, 9:36 PM CST
- Expired
- Nov 13, 2012, 9:00 AM CST
- In force
- 11 hr
- Issued by
- NWS Norman, OK
Counties Atoka County, OK, Bryan County, OK
The radar
The Norman radar (KTLX), 166 km from the middle of the area, began a volume at 16:39 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
Fort Worth, TX (KFWD), launched 12:00Z, 4.6 hours before the alert went out and 183 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
- 1722 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- -215 m²/s²
- 0-3 km storm-relative helicity
- -53 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 Norman, OK wrote its last area forecast discussion before this freeze warning went out at Nov 11, 5:27 PM CST, 17 hours 10 minutes earlier.
Area forecast discussion, Nov 11, 5:27 PM CST, 17 hours 10 minutes before
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</html>Hazardous weather outlook, Nov 11, 4:25 PM CST, 18 hours 12 minutes before
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Freeze Warnings in Oklahoma, 2012Every 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.