Alert archive / Kansas / Mesoscale Discussions in 2007

Mesoscale Discussion 327

March 23, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2007, 3:58 PM CDT for 4 states. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued: Mar 23, 2007, 3:58 PM CDT (20:58 UTC)
Expired: Mar 23, 2007, 5:00 PM CDT
In force: 62 min
Issued by: the Storm Prediction Center

All 25 counties

Clark County, KS, Comanche County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Haskell County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stevens County, KS, Harding County, NM, Union County, NM, Beaver County, OK, Cimarron County, OK, Harper County, OK, Texas County, OK, Dallam County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 134 km from the middle of the area, began a volume at 20:57 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.

Tornado Watch 71Mar 23, 4:40 PM CDT

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.0 hours before the alert went out and 134 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: 831 J/kg
Mixed-layer CIN: -74 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.1

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.

Issued	Product	Office	Counties	Lasted
Mar 22, 7:27 PM CDT	Mesoscale Discussion	SPC	Sumner	2 hr
Mar 23, 4:40 PM CDT	Tornado Watch	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 13 more	7 hr
Mar 23, 5:50 PM CDT	Mesoscale Discussion	SPC	Butler, Chase, Clay, Cloud, Dickinson, Ellsworth and 21 more	115 min
Mar 22, 9:43 PM CDT	Mesoscale Discussion	SPC	Eddy, Lea	62 min
Mar 23, 4:11 AM CDT	Mesoscale Discussion	SPC	Chaves, De Baca, Eddy, Roosevelt	94 min
Mar 23, 11:15 AM CDT	Mesoscale Discussion	SPC	Colfax, Harding, Mora, Quay, San Miguel, Santa Fe and 2 more	90 min
Mar 23, 1:20 PM CDT	Mesoscale Discussion	SPC	Chaves, Curry, De Baca, Eddy, Lea, Roosevelt	115 min
Mar 23, 1:43 PM CDT	Mesoscale Discussion	SPC	Doña Ana, Grant, Hidalgo, Lincoln, Luna, Otero and 2 more	62 min
Mar 23, 2:20 PM CDT	Severe Thunderstorm Watch	SPC	Bernalillo, Chaves, De Baca, Doña Ana, Grant, Guadalupe and 10 more	8 hr
Mar 23, 3:19 PM CDT	Tornado Watch	SPC	Curry, Eddy, Lea, Quay, Roosevelt	8 hr
Mar 23, 5:30 PM CDT	Mesoscale Discussion	SPC	Doña Ana, Grant, Hidalgo, Luna, Sierra, Socorro and 2 more	60 min
Mar 23, 6:34 PM CDT	Mesoscale Discussion	SPC	Curry, Lea, Roosevelt	116 min

Nearby

Mesoscale Discussions in Kansas, 2007 Mesoscale Discussions in Texas, 2007 Mesoscale Discussions in Oklahoma, 2007 Every mesoscale discussion in 2007

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.