Flood in Colorado, May 27 to 28, 2007

Name: Flood in Colorado, May 27 to 28, 2007
Start: 2007-05-27T21:30
End: 2007-05-28T15:00
Location: Colorado

May 27 to 28, 2007 · NWS GLD · 1 event in 1 county or zone

Slow moving thunderstorms developed across Cheyenne county in eastern Colorado during the late evening hours on the 27th and continued overnight. Doppler radar estimated three inches of rain fell.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $75,000
Crop damage: None recorded
Events: 1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GLD wrote it up.

Slow moving thunderstorms developed across Cheyenne county in eastern Colorado during the late evening hours on the 27th and continued overnight. Doppler radar estimated three inches of rain fell. Heavy rainfall resulted in one railroad bridge wash out and elevated levels on small streams and creeks throughout the county, with water running across country roads and farmland.

What forecasters said that day

The local office's own words before the first event, 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 the first event at May 27, 7:30 PM MST, 2 hours earlier.

Area forecast discussion, May 27, 7:30 PM MST, 2 hours before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
830 PM MDT SUN MAY 27 2007

.DISCUSSION...THUNDERSTORMS CONTINUE TO DEVELOP ALONG OUTFLOW
BOUNDARY CURRENTLY EXTENDING FROM A MCCOOK TO COLBY TO 20S GOODLAND
TO 25S FLAGLER LINE. HAVE ADJUSTED POP AND WEATHER GRIDS TO REFLECT
CURRENT POSITION OF PRECIPITATION AND EXPECTED SLOW SOUTH AND EAST
MOVEMENT NEXT FEW HOURS. IN GENERAL STORMS ARE EXPECTED TO REMAIN
NON-SEVERE ALTHOUGH A FEW STRONGER CELLS EXIST ALONG THE KIT
CARSON-CHEYENNE CO COUNTY BORDER AREA.

LATEST RUC DOES NOT HANDLE CURRENT PRECIPITATION WELL...AND NEITHER
DO GFS/NAM SOLUTIONS FOR THAT MATTER.  WHILE A GENERAL WEAKENING OF
PRECIP IS EXPECTED NEXT COUPLE HOURS...HAVE SOME CONCERN THAT LOW
LEVEL JET OF 35 KTS FORECAST TO DEVELOP WILL INTERACT WITH OUTFLOW
BOUNDARY TO RE-DEVELOP TSRA ACROSS THOSE AREAS CURRENTLY NORTH AND
WEST OF BOUNDARY THROUGH 06Z.  WILL MONITOR THIS SITUATION CLOSELY.

&&

.AVIATION...ISOLATED -TSRA CURRENTLY NEAR MCK WILL MOVE SLOWLY EAST
AND DISSIPATE NEXT 1-2 HOURS. TSRA WILL CONTINUE SOUTH OF GLD AREA
ALONG OUTFLOW BOUNDARY AND WILL REDEVELOP NORTHWARD NEXT 2-3 HOURS
CLOSER TO GLD.

&&

.GLD WATCHES/WARNINGS/ADVISORIES...
KS...NONE.
NE...NONE.
CO...NONE.
&&

DLF

Hazardous weather outlook, May 27, 9:35 AM MST, 11 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GOODLAND KS
1035 AM MDT SUN MAY 27 2007

COZ090>092-KSZ001>004-013>016-027>029-041-042-NEZ079>081-281200-
YUMA-KIT CARSON-CHEYENNE CO-CHEYENNE KS-RAWLINS-DECATUR-NORTON-
SHERMAN-THOMAS-SHERIDAN-GRAHAM-WALLACE-LOGAN-GOVE-GREELEY-WICHITA-
DUNDY-HITCHCOCK-RED WILLOW-
1035 AM MDT SUN MAY 27 2007 /1135 AM CDT SUN MAY 27 2007/

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP
THIS AFTERNOON ALONG A TROUGH OF LOW PRESSURE...GENERALLY WEST OF
A LINE EXTENDING FROM MCCOOK NEBRASKA THROUGH GOODLAND AND
TRIBUNE KANSAS.

FAVORABLE WIND SHEAR...ALTHOUGH A BIT WEAK...WILL SUPPORT LARGE
HAIL AND DAMAGING WINDS FROM ANY STORM THAT DEVELOPS. THE SHEAR
INCREASES NORTH OF INTERSTATE 70. A TORNADO CANNOT BE RULED OUT
GIVEN THE FAVORABLE SHEAR. THIS IS ESPECIALLY TRUE GENERALLY ALONG
AND NORTH OF HIGHWAY 36 WHERE BETTER LOW LEVEL MOISTURE...BETTER
SHEAR AND GREATER INSTABILITY EXISTS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THUNDERSTORMS WILL BE POSSIBLE MONDAY AFTERNOON AND MONDAY NIGHT.
AT THIS TIME THE MAIN THREAT IS CLOUD TO GROUND LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED AFTER 1 PM MDT (2 PM CDT) THIS
AFTERNOON AND EVENING.

DDT

In the hours before

Local storm report, May 27, 4:58 PM MST, 4 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
558 PM MDT SUN MAY 27 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0550 PM     HAIL             1 SE VONA               39.29N 102.73W
05/27/2007  E1.00 INCH       KIT CARSON         CO   PUBLIC

&&

KJAMES

Local storm report, May 27, 5:23 PM MST, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GOODLAND KS
623 PM MDT SUN MAY 27 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0622 PM     HAIL             FLAGLER                 39.29N 103.07W
05/27/2007  E0.88 INCH       KIT CARSON         CO   PUBLIC

&&

KJAMES

Special weather statement, May 27, 7:19 PM MST, 2 hours 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
819 PM MDT SUN MAY 27 2007

COZ091-092-280245-
CHEYENNE COUNTY-KIT CARSON COUNTY-
819 PM MDT SUN MAY 27 2007

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ALERT FOR CHEYENNE COUNTY IN EAST CENTRAL COLORADO AND KIT
CARSON COUNTY IN EAST CENTRAL COLORADO...

AT 815 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 16 MILES NORTH OF WILD HORSE...AND MOVING SOUTH
AT 5 MPH.

PENNY TO NICKEL SIZE HAIL...AND WINDS TO 50 MPH ARE EXPECTED WITH
THIS STORM.

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

LOCKHART

Special weather statement, May 27, 8:21 PM MST, 1 hour 9 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
921 PM MDT SUN MAY 27 2007

COZ092-280400-
CHEYENNE COUNTY-
921 PM MDT SUN MAY 27 2007

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ALERT FOR CHEYENNE COUNTY IN EAST CENTRAL COLORADO...

AT 920 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 5 MILES NORTH OF AROYA...OR NEAR AROYA...AND
MOVING WEST AT 5 MPH.

PENNY TO NICKEL SIZE HAIL...AND WINDS TO 50 MPH ARE EXPECTED WITH
THIS STORM.

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

LOCKHART

Special weather statement, May 27, 9:30 PM MST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
1030 PM MDT SUN MAY 27 2007

COZ092-280530-
CHEYENNE COUNTY-
1030 PM MDT SUN MAY 27 2007

...THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A SIGNIFICANT
WEATHER ALERT FOR CHEYENNE COUNTY IN EAST CENTRAL COLORADO...

AT 1025 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 5 MILES WEST OF FIRSTVIEW...MOVING EAST AT 10
MPH.

PENNY TO NICKEL SIZE HAIL AND HEAVY RAIN IS EXPECTED WITH THIS STORM.

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

LOCKHART

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flood. Local standard time, as filed.

Flood, Cheyenne

When: May 27, 9:30 PM MST to May 28, 3:00 PM MST
Where: Cheyenne County, 6 mi ENE of Kit Carson
Cause: Heavy Rain
Property damage: $75,000
Reported by: Law Enforcement
Coordinates: 38.803, -102.677

Eureka Creek railroad bridge, just north of Hwy 40 about 6 miles ENE of Kit Carson, washed out. Water was also reported flowing over Highway 40. Law enforcement also reported flooding of county road 27 (south of U.S. highway 40) in this same area. Road 43 north of Cheyenne Wells was also reported to be covered with water from this same heavy rain event.

What these are

Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Colorado in 2007 Every state in 2007 This day in weather history Warnings in Colorado, May 2007

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 28468.