Alert archive / Oklahoma / Ice Storm Warnings in 2013

Ice Storm Warning 1, NWS Tulsa, OK

December 4, 20135 counties in Oklahoma

NWS Tulsa, OK issued this ice storm warning at Dec 4, 2013, 2:59 PM CST for 5 counties in Oklahoma. It took effect at Dec 5, 2013, 6:00 AM CST. It was in force for 29 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: Dec 4, 2013, 2:59 PM CST (20:59 UTC)
In effect from: Dec 5, 2013, 6:00 AM CST
Expired: Dec 6, 2013, 11:08 AM CST
In force: 29 hr
Issued by: NWS Tulsa, OK

Counties Choctaw County, OK, Haskell County, OK, Latimer County, OK, Pittsburg County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 116 km from the middle of the area, began a volume at 21:04 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

Springfield, MO (KSGF), launched 12:00Z, 9.0 hours before the alert went out and 285 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1715 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 197 m²/s²
0-3 km storm-relative helicity: 235 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 ice storm warning 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 ice storm warning went out at Dec 4, 12:20 PM CST, 2 hours 39 minutes earlier.

Area forecast discussion, Dec 4, 12:20 PM CST, 2 hours 39 minutes before

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Hazardous weather outlook, Dec 4, 12:45 PM CST, 2 hours 14 minutes before

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The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 4, 12:48 AM CST	Dense Fog Advisory	TSA	Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 12 more	9 hr
Dec 4, 5:40 AM CST	Winter Storm Warning	TSA	Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more	57 hr

Nearby

Ice Storm Warnings in Oklahoma, 2013 Ice Storm Warnings in Arkansas, 2013 Every ice storm warning in 2013

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.