Alert archive / Kansas / Mesoscale Discussions in 2009

Mesoscale Discussion 199

March 7, 200927 counties in Kansas; Woods County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 7, 2009, 5:57 PM CST for 27 counties in Kansas; Woods County, Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 7, 2009, 5:57 PM CST (23:57 UTC)
Expired
Mar 7, 2009, 8:00 PM CST
In force
2 hr
Issued by
the Storm Prediction Center
All 28 counties

Allen County, KS, Anderson County, KS, Barber County, KS, Butler County, KS, Chase County, KS, Coffey County, KS, Dickinson County, KS, Douglas County, KS, Elk County, KS, Franklin County, KS, Geary County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Jefferson County, KS, Kingman County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Morris County, KS, Osage County, KS, Reno County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS, Woodson County, KS, Woods County, OK

The radar

The Wichita radar (KICT), 6 km from the middle of the area, began a volume at 23:55 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 12.0 hours before the alert went out and 115 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, Lamont, OK at 12:00Z on 2009-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 33 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, Lamont, OK at 12:00Z on 2009-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 290 square meters per square second.1939587897117Sfc1 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
33 J/kg
Mixed-layer CIN
-490 J/kg
Mixed-layer LCL
1287 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
290 m²/s²
0-3 km storm-relative helicity
287 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Mar 6, 9:17 PM CSTMesoscale DiscussionSPCAtchison, Brown, Clay, Cloud, Doniphan, Geary and 14 more118 min
Mar 7, 12:44 AM CSTMesoscale DiscussionSPCAtchison, Brown, Clay, Dickinson, Doniphan, Douglas and 13 more2 hr
Mar 7, 1:51 PM CSTMesoscale DiscussionSPCBarber, Chase, Comanche, Dickinson, Douglas, Geary and 14 more2 hr
Mar 7, 2:32 PM CSTSevere Thunderstorm WatchSPCAnderson, Barber, Butler, Chase, Coffey, Comanche and 28 more7 hr

Nearby

Mesoscale Discussions in Kansas, 2009Mesoscale Discussions in Oklahoma, 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.