Alert archive / Oklahoma / Mesoscale Discussions in 2008

Mesoscale Discussion 1389

June 15, 200820 counties in Kansas; 47 counties in Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Jun 15, 2008, 5:29 AM CDT for 20 counties in Kansas; 47 counties in Oklahoma. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jun 15, 2008, 5:29 AM CDT (10:29 UTC)
Expired
Jun 15, 2008, 8:00 AM CDT
In force
3 hr
Issued by
the Storm Prediction Center
All 67 counties

Barber County, KS, Butler County, KS, Chautauqua County, KS, Clark County, KS, Comanche County, KS, Cowley County, KS, Edwards County, KS, Elk County, KS, Ford County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Kingman County, KS, Kiowa County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Alfalfa County, OK, Atoka County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Garvin County, OK, Grady County, OK, Grant County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kay County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Major County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Noble County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK, Washita County, OK, Woods County, OK, Woodward County, OK

The radar

The Norman radar (KTLX), 75 km from the middle of the area, began a volume at 10:33 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 00:00Z, 10.5 hours before the alert went out and 90 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 00:00Z on 2008-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1377 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 00:00Z on 2008-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
1377 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
1862 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Jun 15, 8:44 AM CDTMesoscale DiscussionSPCAtchison, Brown, Clay, Doniphan, Douglas, Franklin and 15 more91 min
Jun 15, 9:09 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Atchison, Barton, Brown, Butler and 44 more8 hr
Jun 15, 1:16 PM CDTMesoscale DiscussionSPCAnderson, Atchison, Brown, Chase, Clay, Cloud and 36 more119 min
Jun 15, 1:57 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford7 hr
Jun 15, 3:57 PM CDTMesoscale DiscussionSPCAllen, Butler, Chase, Chautauqua, Coffey, Cowley and 20 more93 min
Jun 15, 6:09 PM CDTMesoscale DiscussionSPCCherokee, Labette66 min
Jun 15, 6:36 PM CDTMesoscale DiscussionSPCBarber, Clark, Comanche, Edwards, Ford, Harper and 5 more84 min
Jun 14, 8:52 PM CDTMesoscale DiscussionSPCCotton, Jefferson, Tillman53 min
Jun 14, 9:13 PM CDTSevere Thunderstorm WatchSPCCotton, Jefferson, Tillman3 hr
Jun 14, 11:57 PM CDTMesoscale DiscussionSPCTillman63 min
Jun 15, 9:44 AM CDTMesoscale DiscussionSPCLeFlore, McCurtain2 hr
Jun 15, 3:26 PM CDTMesoscale DiscussionSPCBeaver, Beckham, Custer, Dewey, Ellis, Greer and 5 more2 hr
Jun 15, 6:38 PM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Delaware, Mayes, Muskogee and 5 more5 hr

Nearby

Mesoscale Discussions in Oklahoma, 2008Mesoscale Discussions in Kansas, 2008Every mesoscale discussion in 2008

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.