Alert archive / Missouri / Mesoscale Discussions in 2007
Mesoscale Discussion 310
The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2007, 12:52 AM CDT for 10 counties in Iowa; 4 counties in Kansas; 28 counties in Missouri. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Mar 22, 2007, 12:52 AM CDT (05:52 UTC)
- Expired
- Mar 22, 2007, 1:45 AM CDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
All 42 counties
Appanoose County, IA, Clarke County, IA, Davis County, IA, Decatur County, IA, Lucas County, IA, Monroe County, IA, Ringgold County, IA, Union County, IA, Wapello County, IA, Wayne County, IA, Atchison County, KS, Jefferson County, KS, Leavenworth County, KS, Wyandotte County, KS, Adair County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Harrison County, MO, Howard County, MO, Jackson County, MO, Knox County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Macon County, MO, Mercer County, MO, Platte County, MO, Putnam County, MO, Randolph County, MO, Ray County, MO, Saline County, MO, Schuyler County, MO, Scotland County, MO, Sullivan County, MO, Worth County, MO
The radar
The Pleasant Hill radar (KEAX), 115 km from the middle of the area, began a volume at 05:52 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
Topeka, KS (KTOP), launched 00:00Z, 5.9 hours before the alert went out and 167 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
- 1474 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 1236 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 123 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 220552 SWOMCD SPC MCD 220552 MOZ000-IAZ000-KSZ000-220645- MESOSCALE DISCUSSION 0310 NWS STORM PREDICTION CENTER NORMAN OK 1252 AM CDT THU MAR 22 2007 AREAS AFFECTED...SRN IA...NRN MO...FAR NERN KS... CONCERNING...SEVERE THUNDERSTORM WATCH 65... VALID 220552Z - 220645Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 65 CONTINUES. LARGE HAIL AND ISOLATED STRONG WIND GUSTS REMAIN POSSIBLE ACROSS SRN-SERN IA...WITH SIMILAR THREAT ACROSS NRN MO...AS TSTMS CONTINUE TO DEVELOP ALONG/AHEAD OF COLD FRONT MOVING SEWD ACROSS THIS REGION OVERNIGHT. WIND PROFILER/WSR-88D VADS INDICATED 60-65 KT SWLY LLJ EXTENDING FROM ERN KS INTO THE SWRN GREAT LAKES REGION. MOISTURE/ WARM AIR ADVECTION ALONG THIS LLJ AND FORCING FOR ASCENT WITH THE COLD FRONT ARE EXPECTED TO MAINTAIN TSTM DEVELOPMENT FOR AT LEAST THE NEXT SEVERAL HOURS AS THIS BOUNDARY PROGRESSES S/SEWD. MUCAPE VALUES AROUND 1000 J/KG AND POINT FORECAST SOUNDINGS INDICATING POTENTIAL FOR TSTMS TO BECOME SURFACE BASED...OR NEAR SURFACE BASED...ALONG THE FRONT SUGGESTS THAT STRONGER LOW LEVEL WINDS COULD REACH THE SURFACE. STEEP MID LEVEL LAPSE RATES AROUND 8 C/KM AND MODERATE MUCAPE VALUES WILL ALSO SUPPORT CONTINUED THREAT FOR LARGE HAIL. ..PETERS.. 03/22/2007 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LSX...DVN...DMX...EAX...TOP... 40569446 41159423 41179224 40549214 39339209 39069250 38889368 38899478 38989534 39159560 39449566 39779477 40119435
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 21, 9:31 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Boone, Butler, Calhoun, Cerro Gordo and 21 more | 59 min |
| Mar 21, 10:24 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 4 more | 4 hr |
| Mar 22, 2:02 AM CDT | Mesoscale Discussion | SPC | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 118 min |
| Mar 22, 3:23 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Barber, Bourbon, Butler, Chase and 28 more | 67 min |
| Mar 22, 1:59 PM CDT | Mesoscale Discussion | SPC | Barber, Butler, Chautauqua, Cowley, Elk, Greenwood and 9 more | 2 hr |
| Mar 22, 2:49 AM CDT | Mesoscale Discussion | SPC | Audrain, Boone, Callaway, Carroll, Chariton, Cole and 21 more | 26 min |
| Mar 22, 2:59 AM CDT | Tornado Watch | SPC | Audrain, Boone, Callaway, Chariton, Cole, Cooper and 18 more | 7 hr |
| Mar 22, 6:13 AM CDT | Mesoscale Discussion | SPC | Audrain, Benton, Boone, Callaway, Camden, Cole and 20 more | 62 min |
Nearby
Mesoscale Discussions in Missouri, 2007Mesoscale Discussions in Iowa, 2007Mesoscale Discussions in Kansas, 2007Every 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.