Alert archive / Missouri / Mesoscale Discussions in 2017
Mesoscale Discussion 262
The Storm Prediction Center issued this mesoscale discussion at Mar 6, 2017, 7:19 PM CST for Johnson County, Miami County, Wyandotte County, Kansas; 21 counties in Missouri. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Mar 6, 2017, 7:19 PM CST (01:19 UTC)
- Expired
- Mar 6, 2017, 9:15 PM CST
- In force
- 116 min
- Issued by
- the Storm Prediction Center
All 24 counties
Johnson County, KS, Miami County, KS, Wyandotte County, KS, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Cass County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, DeKalb County, MO, Grundy County, MO, Harrison County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Linn County, MO, Livingston County, MO, Mercer County, MO, Platte County, MO, Ray County, MO, Saline County, MO, Sullivan County, MO
The radar
The Pleasant Hill radar (KEAX), 64 km from the middle of the area, began a volume at 01:18 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 nearest sounding before it
Topeka, KS (KFOE), launched 00:00Z, 1.3 hours before the alert went out and 142 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
- 707 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1970 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 333 m²/s²
- 0-3 km storm-relative helicity
- 349 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.4
The text
As transmitted.
433
ACUS11 KWNS 070120
SWOMCD
SPC MCD 070119
MOZ000-KSZ000-070315-
Mesoscale Discussion 0262
NWS Storm Prediction Center Norman OK
0719 PM CST Mon Mar 06 2017
Areas affected...Northwestern Missouri
Concerning...Tornado Watch 62...
Valid 070119Z - 070315Z
The severe weather threat for Tornado Watch 62 continues.
SUMMARY...Portions of northwestern Missouri have a conditional
significant tornado threat this evening.
DISCUSSION...Radar shows line of pre-frontal convection has quickly
transitioned into supercells. The Kansas City area VWP shows 0-1 SRH
over 600 m2/s2, along with 2-3 mb pressure falls noted over the last
two hours. Unless the cold front/outflow from the squall line
undercuts the cells, there could be a threat of significant
tornadoes over northwest Missouri this evening.
..Jewell.. 03/07/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...EAX...TOP...
LAT...LON 38699509 39089503 39929476 40279424 40529374 40519324
40199280 39769279 39199314 38739355 38549398 38499456
38569488 38699509SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 6, 6:02 PM CST | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Cowley, Crawford and 9 more | 58 min |
| Mar 6, 6:31 PM CST | Mesoscale Discussion | SPC | Anderson, Atchison, Coffey, Doniphan, Douglas, Franklin and 9 more | 119 min |
| Mar 6, 6:51 PM CST | Tornado Watch | SPC | Allen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 8 more | 8 hr |
| Mar 6, 8:10 PM CST | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Howell and 10 more | 3 hr |
| Mar 6, 8:22 PM CST | Mesoscale Discussion | SPC | Audrain, Boone, Callaway, Clark, Cole, Crawford and 19 more | 2 hr |
| Mar 6, 8:52 PM CST | Tornado Watch | SPC | Audrain, Boone, Callaway, Clark, Cole, Crawford and 25 more | 6 hr |
| Mar 6, 9:16 PM CST | Mesoscale Discussion | SPC | Barry, McDonald | 119 min |
| Mar 6, 9:21 PM CST | Tornado Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Dunklin, Perry and 3 more | 8 hr |
| Mar 6, 11:13 PM CST | Mesoscale Discussion | SPC | Bollinger, Butler, Cape Girardeau, Carter, Christian, Crawford and 38 more | 2 hr |
| Mar 7, 2:58 AM CST | Mesoscale Discussion | SPC | Butler, Cape Girardeau, Dunklin, Mississippi, New Madrid, Pemiscot and 2 more | 92 min |
| Mar 7, 3:37 AM CST | Severe Thunderstorm Watch | SPC | Pemiscot | 8 hr |
Nearby
Mesoscale Discussions in Missouri, 2017Mesoscale Discussions in Kansas, 2017Every mesoscale discussion in 2017
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.