Alert archive / Kansas / Flash Flood Warnings in 2010

Flash Flood Warning 11, NWS Goodland, KS

May 26, 2010Cheyenne County, Rawlins County, Kansas

NWS Goodland, KS issued this flash flood warning at May 26, 2010, 3:21 PM CDT for Cheyenne County, Rawlins County, Kansas. It was in force for 5 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 26, 2010, 3:21 PM CDT (20:21 UTC)
Expired
May 26, 2010, 8:30 PM CDT
In force
5 hr
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Flood severity
None

Counties Cheyenne County, KS, Rawlins County, KS

The radar

The Goodland radar (KGLD), 53 km from the middle of the area, began a volume at 20:24 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

Denver, CO (KDNR), launched 12:00Z, 8.4 hours before the alert went out and 156 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, Denver, CO at 12:00Z on 2010-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 291 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2010-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 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
291 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
669 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at May 26, 3:00 PM CDT, 21 minutes earlier.

Area forecast discussion, May 26, 3:00 PM CDT, 21 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
200 PM MDT WED MAY 26 2010

.DISCUSSION...
200 PM MDT WED MAY 26 2010

TONIGHT-SATURDAY NIGHT...THUNDERSTORMS STARTING TO POP UP UNDER
MODERATE INSTABILITY AND WEAK CAP...WITHIN 850 THETA-E AXIS.
CONVECTION IN SOUTHWEST KANSAS SEEMS TO BE CREATING SOME
SUBSIDENCE OUTSIDE OF THE AREA ALONG THETA-E GRADIENT AND RUC
OMEGA FIELDS SHOW DOWNWARD MOTION FOR THE REST OF THE AFTERNOON.
UPPER WAVE WILL MOVE INTO THE FRONT RANGE AROUND 00Z THEN CONTINUE
EAST/NORTHEAST OVERNIGHT. WILL HAVE TO BROADBRUSH LOW CHANCE POPS
ACROSS THE AREA THROUGH MIDNIGHT.

FOR THURSDAY AND THURSDAY NIGHT ABOVE MENTIONED SYSTEM MAY
REGENERATE A FEW SHOWERS AND THUNDERSTORMS AFTER 15Z AS IT ROTATES
SOUTHEAST OUT OF THE AREA. AFTERNOON TEMPERATURES WARM INTO THE
MID AND UPPER 80S WITH MOIST SOUTHEAST WINDS OF 20 TO 30 MPH.

ON FRIDAY AND FRIDAY NIGHT UPPER RIDGE AXIS SLOWLY GIVES WAY TO
APPROACHING UPPER TROUGH. GREATEST INSTABILITY ACROSS THE EAST
WITH WEAKEST CAP AND BETTER MOISTURE/DYNAMICS ACROSS THE
WEST...JUST OUTSIDE OF THE FORECAST AREA. HAVE PULLED POPS AS A
RESULT. TEMPERATURES CONTINUE TO SLOWLY WARM WITH READINGS IN THE
UPPER 80S.

SATURDAY-SATURDAY NIGHT...UPPER TROUGH LIFTS NORTHEAST INTO THE
NORTHERN PLAINS WITH A CHANCE OF THUNDERSTORMS ACROSS THE WEST IN
THE AFTERNOON...INCREASING IN COVERAGE SATURDAY NIGHT. HIGH
TEMPERATURES NEAR 90 UNDER GUSTY SOUTH TO SOUTHEAST WINDS.

SUNDAY-WEDNESDAY...HIGH PRESSURE AND COOLER TEMPERATURES SUNDAY
WITH THERMAL RIDGE REBUILDING ACROSS THE WESTERN 1/3 OF THE AREA
MONDAY FROM WEST TO EAST. THIS AIRMASS CONTINUES TO SPREAD EAST
TUESDAY INTO WEDNESDAY.

07

&&

.AVIATION...
1142 AM MDT WED MAY 26 2010

FOR THE 18Z TAFS...MAIN AVIATION CONCERNS ARE POTENTIAL FOR CONVECTIVE
ACTIVITY LATER THIS AFTERNOON AND EVENING FOLLOWED BY LOW STRATUS/FOG
POTENTIAL OVERNIGHT. THE AREA WILL SEE A GOOD POTENTIAL FOR THUNDERSTORMS
FROM SOUTHWEST TO NORTHEAST LATE THIS AFTERNOON AND EVENING...WITH HAILERS
AND STRONG WINDS A POSSIBILITY...PARTICULARLY AT KGLD. TIMING SOMEWHAT
IN QUESTION SO HAVE OPTED TO INDICATE POTENTIAL WITH CB GROUPS AND WILL
AMEND AS NECESSARY. BEST CHANCE FOR TSRA WILL BE AFTER 21Z AT KGLD AND
00Z AT KMCK. OVERNIGHT...GOOD POTENTIAL EXISTS FOR LOW STRATUS AND/OR
REDUCED VSBYS ON CONTINUED SOUTHEASTERLY FLOW AND STABLE AIR. AT THIS
TIME, LOW STRATUS APPEARS TO BE MORE LIKELY BUT PRECIP THIS EVENING
AT THE TERMINALS MAY CERTAINLY INCREASE FOG RISK OVERNIGHT.

50

&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
NE...NONE.
CO...NONE.
&&
Hazardous weather outlook, May 26, 11:45 AM CDT, 3 hours 36 minutes before
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In the hours before

Special weather statement, May 26, 2:24 PM CDT, 57 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
124 PM MDT WED MAY 26 2010

KSZ001-002-262000-
CHEYENNE-RAWLINS-
224 PM CDT WED MAY 26 2010

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR RAWLINS COUNTY IN NORTHWEST KANSAS AND CHEYENNE
COUNTY IN NORTHWEST KANSAS...

AT 218 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 8 MILES SOUTH OF MCDONALD...AND MOVING NORTH AT 5
MPH.

PENNY TO NICKEL SIZE HAIL...AND WINDS TO 50 MPH ARE EXPECTED WITH
THIS STORM. RAINFALL RATES OF ONE TO TWO INCHES PER HOUR CAN ALSO BE
EXPECTED.

BE PREPARED TO TAKE SHELTER IN THE EVENT THESE STORMS INTENSIFY AND
BECOME SEVERE.

THEDE
Special weather statement, May 26, 2:33 PM CDT, 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
133 PM MDT WED MAY 26 2010

KSZ014-029-262000-
GOVE-THOMAS-
233 PM CDT WED MAY 26 2010

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ADVISORY FOR THOMAS COUNTY IN NORTHWEST KANSAS AND GOVE
COUNTY IN WEST CENTRAL KANSAS...

AT 229 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR OAKLEY...AND MOVING NORTH AT 15 MPH.

PENNY TO NICKEL SIZE HAIL...AND WINDS TO 50 MPH ARE EXPECTED WITH
THIS STORM. RAINFALL RATES OF ONE TO TWO INCHES PER HOUR CAN ALSO BE
EXPECTED.

BE PREPARED TO TAKE SHELTER IN THE EVENT THIS STORM INTENSIFIES AND
BECOMES SEVERE.

50
Local storm report, May 26, 3:20 PM CDT, 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 7:04 PM CDTTornado WarningGLDGreeley, Logan, Wallace, Wichita56 min
May 25, 7:22 PM CDTTornado WarningGLDGove, Logan53 min
May 25, 7:41 PM CDTSevere Thunderstorm WarningGLDGreeley32 min
May 25, 7:47 PM CDTFlash Flood WarningGLDLogan4 hr
May 25, 7:49 PM CDTTornado WarningGLDGove, Logan56 min
May 25, 7:52 PM CDTFlash Flood WarningGLDGove3 hr
May 25, 7:58 PM CDTTornado WarningGLDLogan, Wichita29 min
May 25, 8:41 PM CDTTornado WarningGLDGove37 min
May 26, 2:52 PM CDTSevere Thunderstorm WarningGLDCheyenne, Rawlins53 min
May 26, 3:44 PM CDTSevere Thunderstorm WarningGLDCheyenne, Rawlins61 min

Nearby

Flash Flood Warnings in Kansas, 2010Every flash flood warning in 2010

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.