Alert archive / Kansas / Special Weather Statements in 2012

Special Weather Statement, NWS Wichita, KS

April 13, 2012Cowley County, Kansas

NWS Wichita, KS issued this special weather statement at Apr 13, 2012, 3:15 PM CDT for Cowley County, Kansas. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 13, 2012, 3:15 PM CDT (20:15 UTC)
Expired
Apr 13, 2012, 4:00 PM CDT
In force
45 min
Issued by
NWS Wichita, KS

County Cowley County, KS

The radar

The Wichita radar (KICT), 70 km from the middle of the area, began a volume at 20:18 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

Lamont, OK (KLMN), launched 12:00Z, 8.3 hours before the alert went out and 91 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.

Skew-T log-pSkew-T log-p diagram, Lamont, OK at 12:00Z on 2012-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1335 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2012-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 423 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1335 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
655 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
423 m²/s²
0-3 km storm-relative helicity
437 m²/s²
Significant tornado parameter
0.0
Supercell composite
12.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wichita, KS wrote its last area forecast discussion before this special weather statement went out at Apr 13, 1:15 PM CDT, 2 hours earlier.

Area forecast discussion, Apr 13, 1:15 PM CDT, 2 hours before
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Hazardous weather outlook, Apr 13, 5:47 AM CDT, 9 hours 28 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
547 AM CDT FRI APR 13 2012

KSZ032-033-047>053-067>072-082-083-091>096-098>100-141100-
RUSSELL-LINCOLN-BARTON-ELLSWORTH-SALINE-RICE-MCPHERSON-MARION-CHASE-
RENO-HARVEY-BUTLER-GREENWOOD-WOODSON-ALLEN-KINGMAN-SEDGWICK-HARPER-
SUMNER-COWLEY-ELK-WILSON-NEOSHO-CHAUTAUQUA-MONTGOMERY-LABETTE-
547 AM CDT FRI APR 13 2012

...AN OUTBREAK OF TORNADOES IS LIKELY SATURDAY EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL KANSAS...
SOUTH CENTRAL KANSAS AND SOUTHEAST KANSAS.

.DAY ONE...TODAY AND TONIGHT

WIDELY SCATTERED THUNDERSTORMS ARE POSSIBLE ACROSS PORTIONS OF
SOUTH CENTRAL AND SOUTHEAST KANSAS LATER THIS EVENING AND
TONIGHT. THIS ACTIVITY IS EXPECTED TO BE LOCATED ACROSS SOUTHERN
KANSAS ALONG THE KANSAS OKLAHOMA BORDER FROM WINFIELD TO
INDEPENDENCE...MOVING GENERALLY EAST NORTHEAST. THE STRONGEST
STORMS MAY BE SEVERE...CAPABLE OF PRODUCING QUARTER SIZE HAIL AND
DAMAGING WINDS OF 60 MPH.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

AN OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES APPEARS LIKELY
ACROSS THE AREA FOR SATURDAY EVENING AND SATURDAY NIGHT.
CONDITIONS ARE COMING TOGETHER FOR A SIGNIFICANT OUTBREAK OF
STRONG TORNADOES. SOME OF THE TORNADOES COULD BE LONG LIVED
WITH A GOOD CHANCE THAT THEY WILL OCCUR AFTER SUNSET SATURDAY
EVENING...WHEN THEY WILL BE DIFFICULT TO SEE. THERE IS ALSO A GOOD
CHANCE THAT THE SUPERCELL THUNDERSTORMS WILL PRODUCE BASEBALL SIZE
HAIL AND DAMAGING WINDS TO 60 MPH. THE HIGHEST THREAT FOR STRONG
TORNADOES EXISTS ALONG A LINE FROM SALINA...TO NEWTON...TO
WICHITA...TO WELLINGTON.

A FEW STRONG TO SEVERE THUNDERSTORMS COULD LINGER SUNDAY OVER
SOUTHEAST KANSAS. THE MAIN THREATS WILL BE DAMAGING WINDS AND
LARGE HAIL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED ACROSS SOUTHERN KANSAS THIS
EVENING. SPOTTERS WILL ALSO BE NEEDED FOR SATURDAY EVENING AND
SATURDAY NIGHT.

&&

FOR A GRAPHICAL VERSION OF THIS INFORMATION...SEE OUR
WEBPAGE AT (LOWERCASE) HTTP://WEATHER.GOV/WICHITA/HWO/HWO.PHP

KETCHAM

In the hours before

Special weather statement, Apr 13, 3:15 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
315 PM CDT FRI APR 13 2012

KSZ093-132100-
COWLEY-
315 PM CDT FRI APR 13 2012

...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR COWLEY COUNTY...

AT 313 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING
A STRONG THUNDERSTORM 7 MILES SOUTHEAST OF WINFIELD...AND MOVING
NORTHEAST AT 30 MPH.

DIME SIZE HAIL...AND WINDS 40 TO 50 MPH ARE POSSIBLE WITH THIS STORM.

BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND
BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER
SERVICE.

&&

LAT...LON 3719 9711 3748 9679 3748 9653 3716 9653
      3701 9689
TIME...MOT...LOC 2015Z 229DEG 27KT 3720 9687

JAKUB

The office that day

Everything else NWS Wichita, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 13, 12:22 AM CDTSpecial Weather StatementICTBarton23 min
Apr 13, 12:54 AM CDTSpecial Weather StatementICTLincoln21 min
Apr 13, 3:09 AM CDTSpecial Weather StatementICTMontgomery36 min
Apr 13, 4:18 AM CDTSpecial Weather StatementICTNeosho42 min
Apr 13, 3:27 PM CDTSpecial Weather StatementICTSumner33 min
Apr 13, 3:30 PM CDTSevere Thunderstorm WarningICTCowley45 min
Apr 13, 3:33 PM CDTSevere Thunderstorm WarningICTCowley, Sumner42 min
Apr 13, 4:04 PM CDTSpecial Weather StatementICTElk41 min
Apr 13, 4:15 PM CDTSpecial Weather StatementICTCowley45 min
Apr 13, 4:17 PM CDTSpecial Weather StatementICTLabette43 min
Apr 13, 4:49 PM CDTSevere Thunderstorm WarningICTLabette26 min
Apr 13, 4:57 PM CDTSpecial Weather StatementICTWoodson48 min
Apr 13, 5:05 PM CDTSevere Thunderstorm WarningICTAllen, Woodson40 min
Apr 13, 5:21 PM CDTSpecial Weather StatementICTLabette, Montgomery39 min
Apr 13, 5:30 PM CDTSpecial Weather StatementICTChautauqua45 min
Apr 13, 5:40 PM CDTSpecial Weather StatementICTAllen50 min
Apr 13, 5:54 PM CDTSevere Thunderstorm WarningICTMontgomery51 min
Apr 13, 6:33 PM CDTSpecial Weather StatementICTCowley42 min
Apr 13, 6:36 PM CDTSevere Thunderstorm WarningICTLabette54 min
Apr 13, 6:52 PM CDTSpecial Weather StatementICTChautauqua, Montgomery38 min

Nearby

Special Weather Statements in Kansas, 2012Every special weather statement 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.