Alert archive / Kansas / Mesoscale Discussions in 2003

Mesoscale Discussion 2371

September 10, 200315 counties in Kansas; 8 counties in Oklahoma; 9 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Sep 10, 2003, 11:40 PM CDT for 15 counties in Kansas; 8 counties in Oklahoma; 9 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Sep 10, 2003, 11:40 PM CDT (04:40 UTC)
Expired
Sep 11, 2003, 1:45 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 32 counties

Barton County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Ford County, KS, Hodgeman County, KS, Kiowa County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rush County, KS, Russell County, KS, Stafford County, KS, Beaver County, OK, Beckham County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Roger Mills County, OK, Woodward County, OK, Armstrong County, TX, Collingsworth County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 161 km from the middle of the area, began a volume at 04:43 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 4.7 hours before the alert went out and 160 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, Amarillo Airport, TX at 00:00Z on 2003-09-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 959 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, Amarillo Airport, TX at 00:00Z on 2003-09-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 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
959 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
2150 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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
Sep 10, 7:55 PM CDTSevere Thunderstorm WatchSPCCloud, Graham, Jewell, Lincoln, Mitchell, Norton and 6 more5 hr
Sep 10, 8:10 PM CDTSevere Thunderstorm WatchSPCBarton, Clark, Comanche, Edwards, Ellis, Ford and 11 more5 hr
Sep 10, 11:05 PM CDTMesoscale DiscussionSPCCloud, Graham, Jewell, Mitchell, Norton, Osborne and 4 more115 min
Sep 11, 2:15 AM CDTMesoscale DiscussionSPCClay, Dickinson, Geary, Harper, Harvey, Kingman and 7 more3 hr
Sep 11, 1:54 AM CDTMesoscale DiscussionSPCCuster, Jackson, Kiowa, Washita3 hr
Sep 11, 12:53 PM CDTMesoscale DiscussionSPCBosque, Brown, Callahan, Coleman, Comanche, Dallas and 20 more2 hr

Nearby

Mesoscale Discussions in Kansas, 2003Mesoscale Discussions in Texas, 2003Mesoscale Discussions in Oklahoma, 2003Every mesoscale discussion in 2003

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.