Alert archive / Missouri / Mesoscale Discussions in 2016
Mesoscale Discussion 451
The Storm Prediction Center issued this mesoscale discussion at Apr 26, 2016, 7:18 AM CDT for 6 counties in Kansas; 22 counties in Missouri. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2016, 7:18 AM CDT (12:18 UTC)
- Expired
- Apr 26, 2016, 8:45 AM CDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 28 counties
Atchison County, KS, Brown County, KS, Doniphan County, KS, Jefferson County, KS, Leavenworth County, KS, Wyandotte County, KS, Andrew County, MO, Boone County, MO, Buchanan County, MO, Caldwell County, MO, Carroll County, MO, Chariton County, MO, Clay County, MO, Clinton County, MO, Cooper County, MO, Daviess County, MO, DeKalb County, MO, Howard County, MO, Jackson County, MO, Johnson County, MO, Lafayette County, MO, Livingston County, MO, Moniteau County, MO, Pettis County, MO, Platte County, MO, Randolph County, MO, Ray County, MO, Saline County, MO
The radar
The Pleasant Hill radar (KEAX), 64 km from the middle of the area, began a volume at 12:22 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 12:00Z, 0.3 hours before the alert went out and 156 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
- 1934 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 628 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 268 m²/s²
- 0-3 km storm-relative helicity
- 330 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 22.6
The text
As transmitted.
661
ACUS11 KWNS 261218
SWOMCD
SPC MCD 261218
MOZ000-KSZ000-261345-
MESOSCALE DISCUSSION 0451
NWS STORM PREDICTION CENTER NORMAN OK
0718 AM CDT TUE APR 26 2016
AREAS AFFECTED...NORTHWEST TO CENTRAL MO...NORTHEAST KS
CONCERNING...SEVERE THUNDERSTORM WATCH 104...105...
VALID 261218Z - 261345Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
104...105...CONTINUES.
SUMMARY...MCS OVER NORTHEAST KS SHOULD ACCELERATE EAST-SOUTHEAST
ACROSS THE LOWER MO VALLEY THROUGH LATE MORNING. A SWATH OF SEVERE
WIND/HAIL APPEARS LIKELY...INCLUDING NORTHERN PARTS OF THE KANSAS
CITY METRO AREA THROUGH MID-MORNING.
DISCUSSION...LONGER-LIVED SUPERCELL EMBEDDED WITHIN AN MCS RECENTLY
EVOLVED INTO AN ACCELERATING SMALL-SCALE BOW ECHO OVER
NEMAHA/JACKSON/BROWN COUNTY KS...WITH SEVERAL DOWNSTREAM UPDRAFTS
ALONG THE NORTHEAST KS/NORTHWEST MO BORDER AREA. THESE CELLS SHOULD
CONTINUE TO AMALGAMATE ALONG THE QUASI-STATIONARY FRONT DRAPED
ACROSS NORTHERN MO. FLANKING DEVELOPMENT FORCED BY THE REMNANT
EASTERN BRANCH OF THE LLJ AND FORWARD PROPAGATION SHOULD RESULT IN
LARGE-SCALE MOTION TO THE EAST-SOUTHEAST TOWARDS CENTRAL MO ALONG
THE MUCAPE GRADIENT. OVERALL SCENARIO REMAINS SUPPORTIVE OF A MIX OF
SEVERE WIND/HAIL EVENTS WITHIN A SWATH THAT SHOULD INCLUDE AT LEAST
NORTHERN PORTIONS OF THE KANSAS CITY METRO AREA.
..GRAMS.. 04/26/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LSX...SGF...EAX...TOP...
LAT...LON 39819561 40029516 40119464 39929337 39679235 39409201
39079202 38779212 38599229 38529282 38659351 38789430
39029501 39249553 39509570 39819561SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 2:18 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Clay, Cloud, Dickinson, Doniphan and 21 more | 117 min |
| Apr 26, 3:02 AM CDT | Severe Thunderstorm Watch | SPC | Brown, Clay, Cloud, Douglas, Geary, Jackson and 14 more | 6 hr |
| Apr 26, 4:37 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Clay, Cloud, Doniphan, Douglas and 13 more | 83 min |
| Apr 26, 6:23 AM CDT | Severe Thunderstorm Watch | SPC | Atchison, Doniphan, Johnson, Leavenworth, Miami, Wyandotte | 7 hr |
| Apr 26, 10:09 AM CDT | Mesoscale Discussion | SPC | Chautauqua, Labette, Montgomery | 96 min |
| Apr 26, 1:35 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Clay and 37 more | 115 min |
| Apr 26, 2:12 PM CDT | Tornado Watch | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Clay and 46 more | 7 hr |
| Apr 26, 6:14 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Leavenworth | 61 min |
| Apr 26, 6:32 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Butler, Chase, Chautauqua, Clay and 46 more | 58 min |
| Apr 26, 10:03 AM CDT | Mesoscale Discussion | SPC | Audrain, Benton, Boone, Callaway, Camden, Carroll and 40 more | 117 min |
| Apr 26, 11:52 AM CDT | Severe Thunderstorm Watch | SPC | Bollinger, Butler, Cape Girardeau, Carter, Crawford, Dallas and 35 more | 7 hr |
| Apr 26, 2:42 PM CDT | Mesoscale Discussion | SPC | Bollinger, Cape Girardeau, Iron, Jefferson, Madison, Mississippi and 11 more | 2 hr |
| Apr 26, 3:03 PM CDT | Severe Thunderstorm Watch | SPC | Mississippi, New Madrid, Scott | 6 hr |
Nearby
Mesoscale Discussions in Missouri, 2016Mesoscale Discussions in Kansas, 2016Every mesoscale discussion in 2016
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.