Alert archive / Oklahoma / Freeze Watches in 2012

Freeze Watch 3, NWS Tulsa, OK

October 25, 201217 counties in Oklahoma; 4 counties in Arkansas

NWS Tulsa, OK issued this freeze watch at Oct 25, 2012, 10:07 AM CDT for 17 counties in Oklahoma; 4 counties in Arkansas. It took effect at Oct 27, 2012, 1:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: Oct 25, 2012, 10:07 AM CDT (15:07 UTC)
In effect from: Oct 27, 2012, 1:00 AM CDT
Expired: Oct 26, 2012, 3:23 AM CDT
In force
Issued by: NWS Tulsa, OK

All 21 counties

Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pawnee County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 28 km from the middle of the area, began a volume at 15:12 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

Lamont, OK (KLMN), launched 12:00Z, 3.1 hours before the alert went out and 206 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 13 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 860 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this freeze watch went out at Oct 25, 6:13 AM CDT, 3 hours 54 minutes earlier.

Area forecast discussion, Oct 25, 6:13 AM CDT, 3 hours 54 minutes before

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Hazardous weather outlook, Oct 25, 5:05 AM CDT, 5 hours 2 minutes before

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Nearby

Freeze Watches in Oklahoma, 2012 Freeze Watches in Arkansas, 2012 Every freeze watch 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.