Alert archive / Kansas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 276, NWS Wichita, KS

July 15, 2009Sumner County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Jul 15, 2009, 11:15 PM CDT for Sumner 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 counties it named.

The facts

Issued: Jul 15, 2009, 11:15 PM CDT (04:15 UTC)
Expired: Jul 16, 2009, 12:00 AM CDT
In force: 45 min
Issued by: NWS Wichita, KS
Area: Storm-based polygon

County Sumner County, KS

The radar

The Wichita radar (KICT), 47 km from the middle of the area, began a volume at 04:15 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 00:00Z, 4.3 hours before the alert went out and 69 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1251 J/kg
Mixed-layer CIN: -113 J/kg
Mixed-layer LCL: 2067 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 15, 9:39 PM CDT, 1 hour 36 minutes earlier.

Area forecast discussion, Jul 15, 9:39 PM CDT, 1 hour 36 minutes before

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Hazardous weather outlook, Jul 15, 10:12 PM CDT, 1 hour 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WICHITA KS
1012 PM CDT WED JUL 15 2009

KSZ032-033-047>053-067>072-082-083-091>096-098>100-170315-
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-
1012 PM CDT WED JUL 15 2009

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

.DAY ONE...TONIGHT

STRONG AND A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE OVERNIGHT
ACROSS PARTS OF SOUTH CENTRAL KANSAS AND THE SOUTHERN FLINT
HILLS. THE MAIN RISK WILL BE HAIL UP TO THE SIZE OF QUARTERS AND
DAMAGING DOWN-BURST WINDS TO 60 MPH. LOCALLY HEAVY RAINFALL IS
ALSO POSSIBLE.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

CHANCES FOR THUNDERSTORMS WILL CONTINUE PERIODICALLY ACROSS MUCH
OF THE AREA FROM THURSDAY THROUGH FRIDAY. AT THIS TIME...ORGANIZED
SEVERE WEATHER IS NOT EXPECTED. HOWEVER STRONG STORMS OR ISOLATED
SEVERE STORMS CANNOT BE RULED OUT.

STRONG THUNDERSTORMS COULD AFFECT THE AREA AGAIN FOR SUNDAY NIGHT
THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION MAY BE NEEDED ACROSS PARTS OF SOUTH
CENTRAL KANSAS AND THE SOUTHERN FLINT HILLS OVERNIGHT.

&&

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

KED

In the hours before

Special weather statement, Jul 15, 10:46 PM CDT, 29 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
1046 PM CDT WED JUL 15 2009

KSZ091-092-160415-
HARPER-SUMNER-
1046 PM CDT WED JUL 15 2009

...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT
WEATHER ALERT FOR NORTHWEST HARPER AND WESTERN SUMNER COUNTIES...

AT 1045 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A STRONG THUNDERSTORM 7 MILES NORTHWEST OF ARGONIA...OR 16
MILES NORTHEAST OF ANTHONY...AND MOVING SOUTHEAST AT 25 MPH.

PEA SIZE HAIL...AND WINDS OF 40 TO 50 MPH WILL BE POSSIBLE WITH THIS
STORM.

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

KLEINSASSER

Special weather statement, Jul 15, 10:50 PM CDT, 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
1050 PM CDT WED JUL 15 2009

KSZ091-092-160415-
HARPER-SUMNER-
1050 PM CDT WED JUL 15 2009

...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT
WEATHER ALERT FOR HARPER AND SUMNER COUNTIES...

AT 1048 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A STRONG THUNDERSTORM NEAR ZENDA...OR 17 MILES NORTHEAST OF
MEDICINE LODGE...AND MOVING EAST TO SOUTHEAST AT 20 MPH. ANOTHER
STRONG STORM WAS LOCATED JUST NORTHWEST OF ARGONIA...ALSO MOVING
EAST TO SOUTHEAST.

PEA TO DIME SIZE HAIL...AND WINDS TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.

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

KLEINSASSER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 11:13 PM CDT	Severe Thunderstorm Warning	ICT	Harper	47 min
Jul 15, 11:58 PM CDT	Severe Thunderstorm Warning	ICT	Sumner	17 min
Jul 16, 2:30 AM CDT	Areal Flood Warning	ICT	Sumner	11 hr
Jul 16, 2:23 PM CDT	Severe Thunderstorm Warning	ICT	Labette, Neosho, Wilson	67 min
Jul 16, 3:02 PM CDT	Severe Thunderstorm Warning	ICT	Labette	32 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2009 Every severe thunderstorm warning in 2009

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.