Alert archive / Oklahoma / Mesoscale Discussions in 2017

Mesoscale Discussion 42

January 14, 2017Newton County, Missouri; 6 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jan 14, 2017, 5:41 AM CST for Newton County, Missouri; 6 counties in Oklahoma. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jan 14, 2017, 5:41 AM CST (11:41 UTC)
Expired
Jan 14, 2017, 8:45 AM CST
In force
3 hr
Issued by
the Storm Prediction Center

Counties Newton County, MO, Craig County, OK, Logan County, OK, Ottawa County, OK, Pawnee County, OK, Payne County, OK, Rogers County, OK

The radar

The Tulsa radar (KINX), 53 km from the middle of the area, began a volume at 11:40 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

Norman, OK (KOUN), launched 00:00Z, 11.7 hours before the alert went out and 170 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2017-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2017-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 225 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
27 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
325 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
225 m²/s²
0-3 km storm-relative helicity
253 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 14, 2:14 AM CSTMesoscale DiscussionSPCCallaway, Crawford, Dent, Franklin, Gasconade, Iron and 18 more6 hr
Jan 13, 10:05 PM CSTMesoscale DiscussionSPCBlaine, Caddo, Canadian, Cleveland, Comanche, Cotton and 21 more5 hr
Jan 14, 9:30 AM CSTMesoscale DiscussionSPCBeaver, Beckham, Ellis, Harper, Roger Mills, Texas and 2 more4 hr
Jan 14, 1:24 PM CSTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Custer, Dewey, Ellis and 5 more4 hr

Nearby

Mesoscale Discussions in Oklahoma, 2017Mesoscale Discussions in Missouri, 2017Every mesoscale discussion in 2017

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.