Alert archive / Kansas / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 52, NWS Goodland, KS

June 12, 20094 counties in Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jun 12, 2009, 4:28 AM CDT for 4 counties in Kansas. It was in force for 35 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
Jun 12, 2009, 4:28 AM CDT (09:28 UTC)
Expired
Jun 12, 2009, 5:03 AM CDT
In force
35 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon

Counties Gove County, KS, Logan County, KS, Sheridan County, KS, Thomas County, KS

The radar

The Goodland radar (KGLD), 83 km from the middle of the area, began a volume at 09:29 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

Dodge City, (KDDC), launched 00:00Z, 9.5 hours before the alert went out and 170 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, Dodge City, at 00:00Z on 2009-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 342 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, Dodge City, at 00:00Z on 2009-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.1939587897Sfc1 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
342 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
955 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.4

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 Goodland, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 12, 2:18 AM CDT, 2 hours 10 minutes earlier.

Area forecast discussion, Jun 12, 2:18 AM CDT, 2 hours 10 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
118 AM MDT FRI JUN 12 2009

.DISCUSSION...
118 AM MDT FRI JUN 12 2009

RUC/WATER VAPOR SATELLITE INDICATED WSW FLOW ACROSS THE ROCKIES AND
POINTS EAST WHILE THE SUBTROPICAL RIDGE REMAINS CONFINED TO MEXICO
AND THE WESTERN GULF AND A MEAN TROUGH OF LOW PRESSURE WAS LOCATED
FROM THE PACNW SSW OFF THE WEST COAST OF SOUTHERN CALIFORNIA.

H7 WAA PATTERN CONTINUES TO SUPPORT NOCTURNAL THUNDERSTORM ACTIVITY
EARLY THIS MORNING WHICH MAY LINGER EARLY INTO THE FIRST PERIOD.
THIS SHOULD BE FOLLOWED BY A PERIOD OF SUBSIDENCE THROUGH AT LEAST
20-21Z BEFORE WIDELY SCATTERED THUNDERSTORMS DEVELOP IN WEAKLY
CAPPED ENVIRONMENT. HARD TO PINPOINT SPECIFICS GIVEN LACK OF FOCUS
AND MAINTAINED LOW POPS FROM PREVIOUS FORECAST. H7 WAA PATTERN WILL
SUPPORT DEEP MOIST CONVECTION ONCE AGAIN FRI NIGHT WHICH WAS HANDLED
WELL IN THE PREVIOUS FORECAST.

SAT-SUN...SFC TROUGH AXIS IS PROGGED TO LIE ACROSS E CO THROUGH THE
PERIOD AND WILL PROVIDE A FOCUS FOR DEEP MOIST CONVECTION DURING THE
AFTERNOON HOURS. SHEAR/CAPE PROFILES SUPPORT SEVERE THUNDERSTORMS
BOTH DAYS. SUN NIGHT APPEARS TO BE A BETTER NIGHT FOR NOCTURNAL
ACTIVITY WITH STRONG H7 WAA PROGGED AND INCREASED PROBABILITIES
ACROSS THE NORTHERN ZONES. THE PREVIOUS FORECAST HANDLED THE
ANTICIPATED SCENARIO WELL WITH ONLY MINOR ADJUSTMENTS NEEDED.

DAYS 4 THROUGH 7...NO CHANGES.

&&

.AVIATION...
1108 PM MDT THU JUN 11 2009

FOR THE 06Z TAF...CONVECTIVE REDEVELOPMENT CURRENTLY UNDERWAY OVER
EASTERN COLORADO COULD IMPACT THE KGLD TERMINAL THROUGH THE NIGHT.
LATEST RUC/NAM BUFKIT SOUNDINGS INDICATE STRONG POTENTIAL FOR IFR
CIGS AFTER AROUND 09Z FOR KGLD. CURRENT LIFR CIGS FOR KMCK SHOULD
CONTINUE THROUGH THE NIGHT WITH PRECIP REMAINING WEST OF THE
TERMINAL. WILL SEE IMPROVEMENT TO VFR AT BOTH SITES BY AROUND 17Z
FRIDAY.

FOLTZ
&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
NE...NONE.
CO...NONE.
&&
Hazardous weather outlook, Jun 11, 4:53 PM CDT, 11 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
353 PM MDT THU JUN 11 2009

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-121315-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
353 PM MDT THU JUN 11 2009 /453 PM CDT THU JUN 11 2009/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EXTREME SOUTHWEST
NEBRASKA...NORTHWEST KANSAS AND EAST CENTRAL COLORADO.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE TRI-
STATE AREA LATER THIS AFTERNOON AND EVENING. THUNDERSTORMS THAT
FORM OVER THE HIGHER TERRAIN IN EASTERN COLORADO WILL DRIFT EAST
INTO WESTERN KANSAS. THERE IS ENOUGH SHEAR FOR A FEW SUPERCELLS.
THE MAIN THREAT WOULD BE LARGE HAIL AND DAMAGING WIND. THERE IS A
SMALL THREAT FOR TORNADOES MAINLY WEST OF HIGHWAY 27.

IN ADDITION TO THE POTENTIAL FOR SEVERE WEATHER...HEAVY RAINFALL
WILL BE POSSIBLE. WITH SOME AREAS ALREADY RECEIVING AROUND AN INCH
OF RAIN LAST NIGHT...THERE IS A POSSIBILITY OF LOCALIZED FLOODING
OVERNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

A PERSISTENT WEATHER PATTERN WILL CAUSE THUNDERSTORMS TO BE A
DAILY OCCURRENCE ACROSS THE TRI-STATE AREA THROUGH TUESDAY. WITH
EACH ROUND OF THUNDERSTORMS...THERE WILL BE THE POTENTIAL FOR
LOCALLY HEAVY RAIN THROUGH THE BEGINNING OF THE WEEK. THE THREAT
FOR FLOODING WILL ALSO INCREASE THROUGH THE PERIOD AS THE GROUND
BECOMES SATURATED IN SOME AREAS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING.

JRM

In the hours before

Special weather statement, Jun 12, 4:12 AM CDT, 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 3:43 AM CDTSevere Thunderstorm WarningGLDCheyenne, Sherman, Thomas, Wallace26 min
Jun 12, 6:50 PM CDTSevere Thunderstorm WarningGLDCheyenne55 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2009Every 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.