Alert archive / Kansas / Mesoscale Discussions in 2011
Mesoscale Discussion 2239
The Storm Prediction Center issued this mesoscale discussion at Oct 8, 2011, 5:28 AM CDT for 4 states. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Oct 8, 2011, 5:28 AM CDT (10:28 UTC)
- Expired
- Oct 8, 2011, 6:30 AM CDT
- In force
- 62 min
- Issued by
- the Storm Prediction Center
All 29 counties
Clark County, KS, Decatur County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Gray County, KS, Hodgeman County, KS, Lane County, KS, Meade County, KS, Ness County, KS, Norton County, KS, Sheridan County, KS, Trego County, KS, Red Willow County, NE, Beaver County, OK, Texas County, OK, Armstrong County, TX, Carson County, TX, Donley County, TX, Gray County, TX, Hale County, TX, Hansford County, TX, Hutchinson County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Ochiltree County, TX, Roberts County, TX, Swisher County, TX
The radar
The Amarillo radar (KAMA), 150 km from the middle of the area, began a volume at 10:29 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 10.5 hours before the alert went out and 150 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
- 542 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 2198 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 139 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted, in the capitals the NWS used until 2016.
918
ACUS11 KWNS 081029
SWOMCD
SPC MCD 081028
KSZ000-OKZ000-NEZ000-TXZ000-081130-
MESOSCALE DISCUSSION 2239
NWS STORM PREDICTION CENTER NORMAN OK
0528 AM CDT SAT OCT 08 2011
AREAS AFFECTED...SRN NEB...WRN KS...OK PANHANDLE...TX
PANHANDLE...WEST TX
CONCERNING...SEVERE THUNDERSTORM WATCH 863...864...
VALID 081028Z - 081130Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
863...864...CONTINUES.
A MARGINAL SEVERE THREAT WILL CONTINUE THIS MORNING ACROSS WEST
TX...THE TX PANHANDLE AND WRN KS. WIND DAMAGE AND HAIL WILL BE THE
PRIMARY THREATS BECOMING INCREASINGLY ISOLATED. NEW WW ISSUANCE IS
NOT ANTICIPATED ACROSS THE REGION THIS MORNING.
A NEARLY CONTINUOUS LINE OF THUNDERSTORMS IS LOCATED ACROSS WRN KS
EXTENDING SWD INTO WEST TX JUST AHEAD OF AN AXIS OF INSTABILITY
WHERE MLCAPE VALUES RANGE FROM 500 TO 1500 J/KG. THE LINE IS ALSO
LOCATED JUST TO THE EAST OF AN EJECTING 70 TO 85 KT MID-LEVEL JET
WHICH ALONG WITH A STRONG LOW-LEVEL JET IS CREATING VERTICAL SHEAR
PROFILES SUFFICIENT FOR SEVERE STORMS. AS THE LINE CONTINUES EWD
THIS MORNING...THE BETTER-DEVELOPED BOWING LINE-SEGMENTS WITHIN THE
LINE MAY PRODUCE ISOLATED DAMAGING WIND GUSTS WITH HAIL ALSO
POSSIBLE WITH THE MORE INTENSE CORES.
..BROYLES.. 10/08/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...OUN...GID...DDC...GLD...LUB...AMA...
LAT...LON 34750054 34740160 34710145 34320143 34320156 33000153
32990204 34290211 34280203 34740197 34750163 36490164
36500199 36970198 36990063 38700070 38700080 39140078
39140070 40280072 40270021 39990017 39989961 37009959
37029998 36050000 36070052 34750054SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 10:25 PM CDT | Mesoscale Discussion | SPC | Finney, Gove, Graham, Grant, Greeley, Hamilton and 12 more | 95 min |
| Oct 8, 12:55 AM CDT | Mesoscale Discussion | SPC | Decatur, Ellis, Finney, Gove, Graham, Grant and 22 more | 95 min |
| Oct 8, 1:47 AM CDT | Severe Thunderstorm Watch | SPC | Clark, Decatur, Finney, Ford, Gove, Graham and 24 more | 5 hr |
| Oct 7, 9:25 PM CDT | Mesoscale Discussion | SPC | Boone, Buffalo, Dawson, Gosper, Greeley, Hall and 8 more | 95 min |
| Oct 7, 11:28 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Dawson, Franklin, Frontier, Furnas and 10 more | 62 min |
| Oct 7, 8:40 PM CDT | Mesoscale Discussion | SPC | Bailey, Castro, Cochran, Gaines, Hockley, Lamb and 3 more | 95 min |
| Oct 7, 11:39 PM CDT | Mesoscale Discussion | SPC | Andrews, Bailey, Borden, Castro, Cochran, Crane and 21 more | 96 min |
| Oct 7, 11:57 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Bailey, Castro, Cochran, Crane, Dawson and 17 more | 6 hr |
Nearby
Mesoscale Discussions in Kansas, 2011Mesoscale Discussions in Texas, 2011Mesoscale Discussions in Oklahoma, 2011Every mesoscale discussion in 2011
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.