Alert archive / Oklahoma / Mesoscale Discussions in 2008
Mesoscale Discussion 21
The Storm Prediction Center issued this mesoscale discussion at Jan 7, 2008, 8:25 PM CST for 10 counties in Kansas; 11 counties in Missouri; 12 counties in Oklahoma. It was in force for 65 min.
The area
The outline as issued.
The facts
- Issued
- Jan 7, 2008, 8:25 PM CST (02:25 UTC)
- Expired
- Jan 7, 2008, 9:30 PM CST
- In force
- 65 min
- Issued by
- the Storm Prediction Center
All 33 counties
Allen County, KS, Bourbon County, KS, Chautauqua County, KS, Cherokee County, KS, Crawford County, KS, Labette County, KS, Linn County, KS, Montgomery County, KS, Neosho County, KS, Wilson County, KS, Barton County, MO, Bates County, MO, Chariton County, MO, Henry County, MO, Howard County, MO, Johnson County, MO, Lafayette County, MO, Pettis County, MO, Saline County, MO, St. Clair County, MO, Vernon County, MO, Craig County, OK, Creek County, OK, Lincoln County, OK, Nowata County, OK, Okfuskee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pottawatomie County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 107 km from the middle of the area, began a volume at 02:24 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
Springfield, MO (KSGF), launched 00:00Z, 2.4 hours before the alert went out and 132 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.
- Mixed-layer CAPE
- 765 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 281 m²/s²
- 0-3 km storm-relative helicity
- 338 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 7.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 080225 SWOMCD SPC MCD 080225 MOZ000-OKZ000-KSZ000-080330- MESOSCALE DISCUSSION 0021 NWS STORM PREDICTION CENTER NORMAN OK 0825 PM CST MON JAN 07 2008 AREAS AFFECTED...NERN OK THROUGH SERN KS AND W CNTRL THROUGH N CNTRL MO CONCERNING...TORNADO WATCH 3...4... VALID 080225Z - 080330Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 3...4...CONTINUES. REMAINING PORTIONS OF WW 0001 WHICH EXPIRES AT 03Z AND WW 0003 WHICH EXPIRES AT 04Z WILL PROBABLY NEED TO BE REPLACED BY ANOTHER WW SOON. PRIMARY AXIS OF TORNADIC SUPERCELLS CONTINUES FROM NERN OK NEWD THROUGH SWRN AND CNTRL MO WITHIN PDS TORNADO WATCH. FARTHER WEST...A NARROW CORRIDOR OF INSTABILITY REMAINS BETWEEN THIS ACTIVITY AND THE COLD FRONT WHICH EXTENDS FROM NRN MO SWWD THROUGH SERN KS INTO NWRN OK. THE LARGEST LOW LEVEL HODOGRAPHS WILL REMAIN IN PDS WATCH AREA TONIGHT. HOWEVER...DEEP SHEAR WILL BE SUFFICIENT FOR ORGANIZED STORM STRUCTURES AND SUPERCELLS WITH ACTIVITY DEVELOPING FARTHER NW AND IN CLOSER PROXIMITY TO THE FRONT. STORMS MAY INCREASE IN COVERAGE WITHIN THIS ZONE AS ASCENT AND STEEP LAPSE RATES ASSOCIATED WITH SHORTWAVE THROUGH OVER OK ADVANCES EWD. PRIMARY THREATS WILL PROBABLY BE ISOLATED LARGE HAIL AND DAMAGING WIND GUSTS...BUT ISOLATED TORNADOES CANNOT BE RULED OUT. ..DIAL.. 01/08/2008 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...SGF...EAX...TSA...TOP...ICT...OUN... 36679497 35359635 35189709 35749722 36699696 38329471 40119268 39229247
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 7, 6:11 PM CST | Mesoscale Discussion | SPC | Bourbon, Cherokee, Crawford, Labette, Montgomery, Neosho | 94 min |
| Jan 7, 6:57 PM CST | Mesoscale Discussion | SPC | Crawford | 93 min |
| Jan 7, 8:55 PM CST | Severe Thunderstorm Watch | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 4 more | 8 hr |
| Jan 7, 11:18 PM CST | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 4 more | 87 min |
| Jan 8, 3:44 AM CST | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Elk and 5 more | 91 min |
| Jan 7, 7:48 PM CST | Tornado Watch | SPC | Audrain, Barry, Benton, Bollinger, Boone, Callaway and 55 more | 9 hr |
| Jan 7, 10:04 PM CST | Mesoscale Discussion | SPC | Barry, Callaway, Camden, Christian, Cole, Dallas and 19 more | 86 min |
| Jan 8, 2:02 AM CST | Mesoscale Discussion | SPC | Dent, Douglas, Shannon, Texas, Wright | 118 min |
| Jan 8, 8:34 AM CST | Tornado Watch | SPC | Butler, Dunklin, Mississippi, New Madrid, Pemiscot, Ripley and 2 more | 5 hr |
| Jan 8, 11:27 AM CST | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Madison and 9 more | 2 hr |
| Jan 8, 1:11 PM CST | Mesoscale Discussion | SPC | Dunklin, Mississippi, Pemiscot | 2 hr |
| Jan 8, 1:26 PM CST | Tornado Watch | SPC | Pemiscot | 8 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2008Mesoscale Discussions in Missouri, 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.