Alert archive / Colorado / Flash Flood Warnings in 2011

Flash Flood Warning 4, NWS Goodland, KS

May 24, 2011Kit Carson County, Yuma County, Colorado; Cheyenne County, Sherman County, Kansas

NWS Goodland, KS issued this flash flood warning at May 24, 2011, 4:31 PM MDT for Kit Carson County, Yuma County, Colorado; Cheyenne County, Sherman County, Kansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 24, 2011, 4:31 PM MDT (22:31 UTC)
Expired
May 24, 2011, 7:26 PM MDT
In force
3 hr
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Flood severity
None

Counties Kit Carson County, CO, Yuma County, CO, Cheyenne County, KS, Sherman County, KS

The radar

The Goodland radar (KGLD), 32 km from the middle of the area, began a volume at 22:33 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, 10.5 hours before the alert went out and 134 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 2011-05-24Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2011-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
291 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
996 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

311 
WGUS53 KGLD 242231
FFWGLD
COC063-125-KSC023-181-250430-
/O.NEW.KGLD.FF.W.0004.110524T2231Z-110525T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
431 PM MDT TUE MAY 24 2011

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CHEYENNE COUNTY IN NORTHWEST KANSAS...
  EXTREME NORTHEASTERN KIT CARSON COUNTY IN EAST CENTRAL COLORADO...
  SHERMAN COUNTY IN NORTHWEST KANSAS...
  SOUTHEASTERN YUMA COUNTY IN NORTHEAST COLORADO...

* UNTIL 1030 PM MDT/1130 PM CDT/

* AT 430 PM MDT/530 PM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS
  THE WARNED AREA. BETWEEN 1 AND 3 INCHES OF RAINFALL IS ESTIMATED   
  TO HAVE FALLEN ACROSS THE WARNED AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BIRD
  CITY...EDSON...GOODLAND...KANORADO...RULETON...ST. FRANCIS AND
  WHEELER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

&&

LAT...LON 3998 10142 3918 10140 3915 10206 3999 10212

$$

DJR
2 follow-up statements
878 
WGUS73 KGLD 250048
FFSGLD

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
648 PM MDT TUE MAY 24 2011

COC063-125-KSC023-181-250430-
/O.CON.KGLD.FF.W.0004.000000T0000Z-110525T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KIT CARSON CO-YUMA CO-SHERMAN KS-CHEYENNE KS-
648 PM MDT TUE MAY 24 2011

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR CHEYENNE...SHERMAN...
SOUTHEASTERN YUMA AND EXTREME NORTHEASTERN KIT CARSON COUNTIES UNTIL
1030 PM MDT/1130 PM CDT/...

AT 646 PM MDT/746 PM CDT/...NATIONAL WEATHER SERVICE DOPPLER RADAR 
ESTIMATED 2 TO 4 INCHES OF RAIN HAD FALLEN ACROSS THE AREA...MAINLY 
ACROSS NORTHWESTERN SHERMAN AND SOUTHWESTERN CHEYENNE COUNTY. RUN 
OFF FROM THIS HEAVY RAIN WILL CONTINUE TO POSE A FLOODING THREAT 
EVEN THOUGH THE RAIN HAS ENDED ACROSS THE AREA FOR THE TIME BEING.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...BIRD 
CITY...EDSON...GOODLAND...KANORADO...RULETON...ST. FRANCIS AND 
WHEELER.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GOODLAND.

&&

LAT...LON 3998 10142 3918 10140 3915 10206 3999 10212

$$

JRM
016 
WGUS73 KGLD 250126
FFSGLD

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
726 PM MDT TUE MAY 24 2011

COC063-125-KSC023-181-250139-
/O.CAN.KGLD.FF.W.0004.000000T0000Z-110525T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
KIT CARSON CO-YUMA CO-SHERMAN KS-CHEYENNE KS-
726 PM MDT TUE MAY 24 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CHEYENNE...
SHERMAN...SOUTHEASTERN YUMA AND EXTREME NORTHEASTERN KIT CARSON
COUNTIES IS CANCELLED...

HEAVY RAINFALL HAS ENDED ACROSS THE WARNING AREA. HOWEVER PERIODS OF 
LIGHT TO MODERATE RAIN ARE EXPECTED TO REDEVELOP OVERNIGHT WHICH MAY 
WORSEN NY ONGOING PONDING OR MINOR FLOODING. SINCE RAPID RISES IN 
WATER LEVELS ARE NO LONGER EXPECTED THE FLASH FLOOD WARNING HAS BEEN 
REPLACED BY AN AREAL FLOOD WARNING THROUGH 6 AM MDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF FLOODING WAS OBSERVED PLEASE RELAY YOUR REPORT TO LOCAL LAW
ENFORCEMENT OR TO THE NATIONAL WEATHER SERVICE IN GOODLAND.

&&

LAT...LON 3998 10142 3918 10140 3915 10206 3999 10212

$$

JRM

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 6:23 PM MDTSevere Thunderstorm WarningGLDYuma67 min
May 23, 6:32 PM MDTSevere Thunderstorm WarningGLDKit Carson, Yuma58 min
May 23, 7:43 PM MDTSevere Thunderstorm WarningGLDKit Carson, Yuma62 min
May 23, 8:18 PM MDTFlash Flood WarningGLDKit Carson, Yuma4 hr
May 24, 12:38 AM MDTSpecial Weather StatementGLDKit Carson37 min
May 24, 1:00 AM MDTSevere Thunderstorm WarningGLDKit Carson31 min
May 24, 11:22 AM MDTFlash Flood WatchGLDKit Carson, Yuma22 hr
May 24, 11:28 AM MDTSpecial Weather StatementGLDCheyenne32 min
May 24, 11:45 AM MDTSevere Thunderstorm WarningGLDCheyenne45 min
May 24, 12:28 PM MDTSpecial Weather StatementGLDCheyenne32 min
May 24, 12:47 PM MDTSevere Thunderstorm WarningGLDCheyenne43 min
May 24, 1:03 PM MDTSevere Thunderstorm WarningGLDKit Carson23 min
May 24, 1:24 PM MDTSevere Thunderstorm WarningGLDCheyenne21 min
May 24, 1:25 PM MDTSevere Thunderstorm WarningGLDCheyenne16 min
May 24, 1:28 PM MDTSpecial Weather StatementGLDKit Carson32 min
May 24, 1:36 PM MDTFlash Flood WarningGLDCheyenne, Kit Carson, Yuma6 hr
May 24, 1:49 PM MDTSpecial Weather StatementGLDYuma41 min
May 24, 2:06 PM MDTSevere Thunderstorm WarningGLDKit Carson24 min
May 24, 2:12 PM MDTSevere Thunderstorm WarningGLDKit Carson33 min
May 24, 2:22 PM MDTTornado WarningGLDKit Carson23 min
May 24, 2:25 PM MDTSevere Thunderstorm WarningGLDCheyenne, Kit Carson65 min
May 24, 2:42 PM MDTFlash Flood WarningGLDKit Carson, Yuma6 hr
May 24, 2:47 PM MDTTornado WarningGLDKit Carson28 min
May 24, 3:03 PM MDTSevere Thunderstorm WarningGLDKit Carson57 min
May 24, 3:06 PM MDTSevere Thunderstorm WarningGLDYuma39 min
May 24, 3:49 PM MDTSevere Thunderstorm WarningGLDKit Carson, Yuma41 min
May 23, 6:05 PM MDTSevere Thunderstorm WarningGLDLogan, Thomas55 min
May 23, 6:48 PM MDTSevere Thunderstorm WarningGLDGove, Logan57 min
May 23, 7:00 PM MDTSevere Thunderstorm WarningGLDCheyenne, Sherman60 min
May 23, 7:38 PM MDTSevere Thunderstorm WarningGLDGove44 min
May 23, 8:38 PM MDTSpecial Weather StatementGLDCheyenne37 min
May 24, 1:22 AM MDTSpecial Weather StatementGLDWichita23 min
May 24, 1:58 AM MDTSpecial Weather StatementGLDLogan32 min
May 24, 2:17 AM MDTSevere Thunderstorm WarningGLDLogan, Wichita19 min
May 24, 2:48 AM MDTSpecial Weather StatementGLDSheridan27 min
May 24, 3:17 AM MDTSpecial Weather StatementGLDLogan28 min
May 24, 3:49 AM MDTSpecial Weather StatementGLDGove26 min
May 24, 4:30 AM MDTSpecial Weather StatementGLDGove30 min
May 24, 1:53 PM MDTSpecial Weather StatementGLDSherman22 min
May 24, 2:23 PM MDTSpecial Weather StatementGLDWallace37 min
May 24, 2:28 PM MDTSpecial Weather StatementGLDGreeley32 min
May 24, 2:52 PM MDTSevere Thunderstorm WarningGLDGreeley, Wallace18 min
May 24, 2:53 PM MDTTornado WarningGLDSherman37 min
May 24, 3:10 PM MDTTornado WarningGLDCheyenne, Sherman35 min
May 24, 3:28 PM MDTSevere Thunderstorm WarningGLDCheyenne, Decatur, Logan, Rawlins, Sheridan, Sherman and 2 more62 min
May 24, 3:48 PM MDTSevere Thunderstorm WarningGLDGove, Logan, Sheridan, Thomas18 min
May 24, 4:07 PM MDTTornado WarningGLDCheyenne, Rawlins38 min
May 24, 4:14 PM MDTSevere Thunderstorm WarningGLDWichita48 min
May 24, 4:30 PM MDTSevere Thunderstorm WarningGLDCheyenne, Rawlins60 min
May 24, 4:52 PM MDTSpecial Weather StatementGLDGove, Logan, Sheridan, Thomas23 min

Nearby

Flash Flood Warnings in Colorado, 2011Flash Flood Warnings in Kansas, 2011Every flash flood warning in 2011

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.