Alert archive / Oklahoma / Mesoscale Discussions in 2004

Mesoscale Discussion 228

March 27, 2004Barber County, Harper County, Sumner County, Kansas; 17 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Mar 27, 2004, 12:07 PM CST for Barber County, Harper County, Sumner County, Kansas; 17 counties in Oklahoma. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Mar 27, 2004, 12:07 PM CST (18:07 UTC)
Expired
Mar 27, 2004, 2:00 PM CST
In force
113 min
Issued by
the Storm Prediction Center

Counties Barber County, KS, Harper County, KS, Sumner County, KS, Alfalfa County, OK, Blaine County, OK, Canadian County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Kay County, OK, Kingfisher County, OK, Logan County, OK, Major County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Woods County, OK, Woodward County, OK

The watches that followed

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

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 6.1 hours before the alert went out and 147 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 12:00Z on 2004-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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, Norman, OK at 12:00Z on 2004-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 171 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
44 J/kg
Mixed-layer CIN
-218 J/kg
Mixed-layer LCL
665 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
171 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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.

IssuedProductOfficeCountiesLasted
Mar 26, 6:00 PM CSTMesoscale DiscussionSPCClark, Finney, Ford, Grant, Gray, Hamilton and 7 more2 hr
Mar 27, 1:55 AM CSTMesoscale DiscussionSPCGrant, Morton, Seward, Stanton, Stevens2 hr
Mar 27, 7:12 AM CSTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Ford, Harper and 7 more93 min
Mar 27, 9:12 AM CSTMesoscale DiscussionSPCBarber, Barton, Clark, Comanche, Edwards, Ellis and 21 more3 hr
Mar 27, 11:35 AM CSTSevere Thunderstorm WatchSPCBarber, Barton, Clark, Comanche, Edwards, Ellis and 23 more5 hr
Mar 27, 1:35 PM CSTTornado WatchSPCBarber, Barton, Harper, Harvey, Kingman, McPherson and 6 more5 hr
Mar 27, 1:36 PM CSTMesoscale DiscussionSPCBarber, Barton, Edwards, Kingman, Pawnee, Pratt and 3 more114 min
Mar 27, 2:34 PM CSTMesoscale DiscussionSPCBarber, Butler, Chase, Chautauqua, Comanche, Cowley and 12 more116 min
Mar 27, 3:04 PM CSTMesoscale DiscussionSPCAnderson, Butler, Chase, Clay, Cloud, Coffey and 21 more116 min
Mar 27, 9:58 AM CSTMesoscale DiscussionSPCBeckham, Ellis, Greer, Harmon, Roger Mills2 hr
Mar 27, 12:30 PM CSTTornado WatchSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 17 more6 hr
Mar 27, 1:58 PM CSTMesoscale DiscussionSPCCotton, Tillman2 hr
Mar 27, 3:53 PM CSTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Haskell, Hughes, McIntosh and 6 more2 hr
Mar 27, 5:08 PM CSTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Comanche, Custer and 14 more37 min
Mar 27, 5:30 PM CSTTornado WatchSPCAlfalfa, Blaine, Caddo, Canadian, Comanche, Custer and 11 more6 hr

Nearby

Mesoscale Discussions in Oklahoma, 2004Mesoscale Discussions in Kansas, 2004Every mesoscale discussion in 2004

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.