Alert archive / Colorado / Flash Flood Warnings in 2011
Flash Flood Warning 21, NWS Goodland, KS
NWS Goodland, KS issued this flash flood warning at Jul 28, 2011, 6:18 PM MDT for Cheyenne County, Colorado. It was in force for 3 hr. 4 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 28, 2011, 6:18 PM MDT (00:18 UTC)
- Expired
- Jul 28, 2011, 9:30 PM MDT
- In force
- 3 hr
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Flood severity
- None
County Cheyenne County, CO
The radar
The Pueblo radar (KPUX), 116 km from the middle of the area, began a volume at 00:20 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 28, 6:55 PM MDT | FLASH FLOOD | 3 Nnw Wild Horse, CO | KIT CARSON DISPATCH REPORTS COUNTY ROAD 8 WASHED OUT BOTH NORTH AND SOUTH OF WILD HORSE. |
| Jul 28, 7:09 PM MDT | HEAVY RAIN 2.64 | 6 N Wild Horse, CO | |
| Jul 28, 7:34 PM MDT | FLOOD | Kit Carson, CO | A LOT OF PONDING OF WATER IN THE TOWN. NO DEPTH GIVEN. |
| Jul 28, 8:32 PM MDT | FLASH FLOOD | 1 W Wild Horse, CO | WATER OVER THE ROAD AT THE INTERSECTION OF HIGHWAY 287 AND COUNTY ROAD 8 NEAR THE BIG SANDY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 0.3 hours before the alert went out and 110 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2987 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
865 WGUS53 KGLD 290018 FFWGLD COC017-290330- /O.NEW.KGLD.FF.W.0021.110729T0018Z-110729T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE GOODLAND KS 618 PM MDT THU JUL 28 2011 THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A * FLASH FLOOD WARNING FOR... WESTERN CHEYENNE COUNTY IN EAST CENTRAL COLORADO... * UNTIL 930 PM MDT * AT 617 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR ESTIMATES INDICATE THAT ONE TO THREE INCHES OF RAIN HAS FALLEN OVER WESTERN CHEYENNE COUNTY IN THE PAST HOUR WITH AS MUCH AS TWO INCHES OF ADDITIONAL RAIN EXPECTED. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... AROYA...KIT CARSON AND WILD HORSE. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN GOODLAND. && LAT...LON 3904 10317 3904 10261 3867 10274 3872 10317 $$ FOLTZ
2 follow-up statements
090 WGUS73 KGLD 290118 FFSGLD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 718 PM MDT THU JUL 28 2011 COC017-290330- /O.CON.KGLD.FF.W.0021.000000T0000Z-110729T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CHEYENNE CO- 718 PM MDT THU JUL 28 2011 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WESTERN CHEYENNE COUNTY UNTIL 930 PM MDT... AT 655 PM MDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT COUNTY ROAD 8 WAS WASHED OUT BOTH NORTH AND SOUTH OF WILD HORSE. ADDITIONALLY...2.64 INCHES OF RAINFALL WAS MEASURED 6 MILES NORTH OF WILD HORSE. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...AROYA...KIT CARSON AND WILD HORSE. PRECAUTIONARY/PREPAREDNESS ACTIONS... DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GOODLAND. && LAT...LON 3904 10317 3904 10261 3867 10274 3872 10317 $$ FOLTZ
352 WGUS73 KGLD 290242 FFSGLD FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE GOODLAND KS 842 PM MDT THU JUL 28 2011 COC017-290330- /O.CON.KGLD.FF.W.0021.000000T0000Z-110729T0330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CHEYENNE CO- 842 PM MDT THU JUL 28 2011 ...FLASH FLOOD WARNING REMAINS IN EFFECT FOR WESTERN CHEYENNE COUNTY UNTIL 930 PM MDT... AT 832 PM MDT...TRAINED WEATHER SPOTTERS REPORTED THAT FLOOD WATER FROM BIG SANDY CREEK WAS FLOWING OVER HIGHWAY 287 NEAR COUNTY ROAD 8. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...AROYA...KIT CARSON AND WILD HORSE. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. 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 3904 10317 3904 10261 3867 10274 3872 10317 $$ FOLTZ
The office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 6:10 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 21 min |
| Jul 28, 6:22 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 68 min |
| Jul 28, 6:41 PM MDT | Special Weather Statement | GLD | Yuma | 34 min |
| Jul 28, 7:19 PM MDT | Special Weather Statement | GLD | Yuma | 26 min |
| Jul 28, 7:42 PM MDT | Flash Flood Warning | GLD | Yuma | 2 hr |
| Jul 28, 9:25 PM MDT | Flash Flood Warning | GLD | Cheyenne, Kit Carson | 4 hr |
| Jul 28, 9:30 PM MDT | Areal Flood Warning | GLD | Cheyenne | 5 hr |
Nearby
Flash Flood Warnings in Colorado, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.