Alert archive / Kansas / Mesoscale Discussions in 2009

Mesoscale Discussion 2268

December 23, 20094 states

The Storm Prediction Center issued this mesoscale discussion at Dec 23, 2009, 10:31 AM CST for 4 states. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Dec 23, 2009, 10:31 AM CST (16:31 UTC)
Expired
Dec 23, 2009, 12:00 PM CST
In force
89 min
Issued by
the Storm Prediction Center
All 60 counties

Benton County, AR, Allen County, KS, Anderson County, KS, Bourbon County, KS, Cherokee County, KS, Coffey County, KS, Crawford County, KS, Douglas County, KS, Franklin County, KS, Jefferson County, KS, Johnson County, KS, Labette County, KS, Leavenworth County, KS, Linn County, KS, Miami County, KS, Montgomery County, KS, Neosho County, KS, Osage County, KS, Shawnee County, KS, Wilson County, KS, Woodson County, KS, Wyandotte County, KS, Barton County, MO, Bates County, MO, Cass County, MO, Cedar County, MO, Clay County, MO, Dade County, MO, Henry County, MO, Jackson County, MO, Jasper County, MO, Johnson County, MO, Lafayette County, MO, McDonald County, MO, Newton County, MO, Platte County, MO, Ray County, MO, St. Clair County, MO, Vernon County, MO, Adair County, OK, Cherokee County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Hughes County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pittsburg County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 96 km from the middle of the area, began a volume at 16:30 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, 4.5 hours before the alert went out and 140 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, Springfield, MO at 12:00Z on 2009-12-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 80 joules per kilogram.LCLLFCEL10008507005003002001001 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, Springfield, MO at 12:00Z on 2009-12-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 263 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
80 J/kg
Mixed-layer CIN
-152 J/kg
Mixed-layer LCL
559 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
263 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 23, 2:37 AM CSTMesoscale DiscussionSPCCrawford, Howard, Little River, Miller, Polk, Scott and 2 more2 hr
Dec 23, 1:59 PM CSTTornado WatchSPCMiller7 hr
Dec 23, 5:21 PM CSTMesoscale DiscussionSPCLafayette, Miller114 min
Dec 22, 11:32 PM CSTMesoscale DiscussionSPCBarton, Clark, Edwards, Ford, Hodgeman, Jewell and 7 more4 hr
Dec 23, 6:44 AM CSTMesoscale DiscussionSPCRepublic, Washington4 hr
Dec 23, 12:18 PM CSTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Creek and 17 more57 min
Dec 23, 1:03 PM CSTMesoscale DiscussionSPCChoctaw57 min

Nearby

Mesoscale Discussions in Kansas, 2009Mesoscale Discussions in Oklahoma, 2009Mesoscale Discussions in Missouri, 2009Every mesoscale discussion in 2009

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.