Alert archive / Kansas / Severe Thunderstorm Watches in 2012
Severe Thunderstorm Watch 342
The Storm Prediction Center issued this severe thunderstorm watch at Jun 2, 2012, 6:31 PM CDT for 37 counties in Kansas; 8 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2012, 6:31 PM CDT (23:31 UTC)
- Expired
- Jun 3, 2012, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 65 kt
All 45 counties
Cheyenne County, KS, Clark County, KS, Comanche County, KS, Decatur County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Logan County, KS, Meade County, KS, Morton County, KS, Ness County, KS, Norton County, KS, Pawnee County, KS, Rawlins County, KS, Rush County, KS, Scott County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Stanton County, KS, Stevens County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Chase County, NE, Deuel County, NE, Dundy County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Perkins County, NE, Red Willow County, NE
The radar
The Goodland radar (KGLD), 47 km from the middle of the area, began a volume at 23:32 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 6:41 PM CDT | Severe Thunderstorm Warning | DDC | Hamilton | 49 min |
| Jun 2, 6:51 PM CDT | Severe Thunderstorm Warning | GLD | Greeley, Wallace | 54 min |
| Jun 2, 6:59 PM CDT | Tornado Warning | GLD | Greeley, Wallace | 27 min |
| Jun 2, 7:09 PM CDT | Severe Thunderstorm Warning | GLD | Sherman | 66 min |
| Jun 2, 7:35 PM CDT | Severe Thunderstorm Warning | GLD | Greeley | 55 min |
| Jun 2, 7:41 PM CDT | Severe Thunderstorm Warning | GLD | Wallace | 64 min |
| Jun 2, 7:54 PM CDT | Severe Thunderstorm Warning | DDC | Grant, Morton, Stanton, Stevens | 51 min |
| Jun 2, 7:54 PM CDT | Severe Thunderstorm Warning | GLD | Cheyenne | 51 min |
| Jun 2, 8:05 PM CDT | Severe Thunderstorm Warning | GLD | Cheyenne | 55 min |
| Jun 2, 8:23 PM CDT | Severe Thunderstorm Warning | GLD | Decatur, Gove, Logan, Rawlins, Sheridan, Thomas | 67 min |
| Jun 2, 9:01 PM CDT | Severe Thunderstorm Warning | GLD | Hitchcock, Red Willow | 59 min |
| Jun 2, 9:09 PM CDT | Severe Thunderstorm Warning | GLD | Decatur, Graham, Norton, Rawlins, Sheridan | 53 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.5 hours before the alert went out and 183 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1766 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
498
WWUS20 KWNS 022334
SEL2
SPC WW 022334
KSZ000-NEZ000-030600-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 342
NWS STORM PREDICTION CENTER NORMAN OK
635 PM CDT SAT JUN 2 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN KANSAS
SOUTHWEST NEBRASKA
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 635 PM
UNTIL 100 AM CDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH
NORTHEAST OF IMPERIAL NEBRASKA TO 40 MILES EAST OF LIBERAL
KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 340...WW 341...
DISCUSSION...TSTM COMPLEX IN ERN CO EXPECTED TO CONTINUE MAINLY EWD
THROUGH LATER THIS EVE...WITH A CONTINUED RISK MAINLY FOR DMGG WIND
GIVEN LARGE TEMP-DEW POINT SPREADS...STRENGTH/BREADTH OF EXISTING
COLD POOL...AND 30+ KT WNWLY DEEP SHEAR. THE MOST ACTIVE PART OF
THE CONVECTIVE SYSTEM MAY TURN SOMEWHAT S OF E LATER THIS EVE AS
STORM MERGERS CONSOLIDATE OVER W CNTRL KS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 28025.
...CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 2:38 PM CDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more | 97 min |
| Jun 2, 3:33 PM CDT | Severe Thunderstorm Watch | SPC | Arapahoe, Baca, Bent, Cheyenne, Crowley, Elbert and 12 more | 7 hr |
| Jun 2, 5:57 PM CDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Kiowa, Kit Carson, Logan and 5 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Kansas, 2012Severe Thunderstorm Watches in Nebraska, 2012Every severe thunderstorm watch in 2012
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.