Alert archive / Colorado / Flash Flood Warnings in 1995

Flash Flood Warning 5, NWS Goodland, KS

June 21, 1995Yuma County, Colorado

NWS Goodland, KS issued this flash flood warning at Jun 21, 1995, 7:56 PM MDT for Yuma County, Colorado. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 21, 1995, 7:56 PM MDT (01:56 UTC)
Expired
Jun 21, 1995, 10:55 PM MDT
In force
3 hr
Issued by
NWS Goodland, KS
Area
Whole counties

County Yuma County, CO

The radar

The Goodland radar (KGLD), 94 km from the middle of the area, began a volume at 01:59 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 00:00Z, 1.9 hours before the alert went out and 70 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 00:00Z on 1995-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 810 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 00:00Z on 1995-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 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
810 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
2800 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGLD 220157
FFWGLD
COC125-220455-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
756 PM MDT WED JUN 21 1995

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1055 PM MDT (1155 PM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST COLORADO

   ...NORTHWESTERN YUMA COUNTY
 
AT 750 PM MDT GOODLAND DOPPLER RADAR INDICATED A LINE OF STRONG AND
SEVERE THUNDERSTORMS OVER NORTHWEST YUMA COUNTY.  THIS LINE IS
PRODUCING HEAVY RAINS AND LARGE AMOUNTS OF HAIL OVER AREAS THAT WERE
HIT BY HEAVY RAINS EARLIER THIS EVENING.

2.5 INCHES OF RAIN WAS REPORTED 7 MILES WEST OF CLARKVILLE /17
MILES NORTH OF YUMA/ ON ROCK CREEK SINCE 630 PM MDT.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGER OF FLOODING.
 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
TO ESCAPE RISING WATER MOVE TO HIGHER GROUND.

ENTWISTLE

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 Jun 21, 7:48 PM MDT, 8 minutes earlier.

Area forecast discussion, Jun 21, 7:48 PM MDT, 8 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GOODLAND KS
748 PM MDT (848 PM CDT) WED JUN 21 1995

RECOMMENDATIONS:  NO CHANGES NEEDED IN ANY OF THE ZONES.

DISCUSSION:

LEE TROUGH AND DRYLINE COMPLEX OVER EAST COLORADO SHOWING SIGNS OF
EASTWARD MOVEMENT.  AM A LITTLE CONCERNED ABOUT POTENTIAL FOR SEVERE
WEATHER OVER THE CWA AS DIFFLUENCE ALOFT EDGES EASTWARD AND WINDS
INCREASE AT 500 MB AND ABOVE IN ITS BACK SIDE.  PROFILER DATA FROM
PLATTEVILLE SHOWS BACKING WINDS TO 650 MB SINCE 20Z WITH
AFOREMENTIONED INCREASED WIND VELOCITIES REACHING LOWER ELEVATIONS
WITH TIME.  RED WILLOW PROFILER NEAR MCCOOK SHOWS LOWEST GATES HAVE
BACKED SINCE 20Z AND GRANADA PROFILER HINTS AT EXISTENCE OF
SHORTWAVE AROUND 750 MB.

AGREE WITH PREVIOUS FORECASTER REGARDING PREFERENCE FOR ETA AND ITS
SPEED OF SURFACE FEATURES.

GLD 61/87 33  HLC 65/92 33
CBK 63/88 33  MCK 66/89 32
TRB 60/89 33  5C0 58/86 33

ENTWISTLE

In the hours before

Special weather statement, Jun 21, 7:13 PM MDT, 43 minutes before
COZ090-091-KSZ001-002-013>015-027>029-041-042-NEZ079-080-220715-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
713 PM MDT (813 PM CDT) WED JUN 21 1995

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 100 AM MDT (200 AM
CDT) FOR PARTS OF NORTHWEST KANSAS...EASTERN COLORADO...AND
SOUTHWEST NEBRASKA...

THE SEVERE THUNDERSTORM WATCH INCLUDES THE FOLLOWING COUNTIES...

IN KANSAS...

CHEYENNE...RAWLINS...SHERMAN...THOMAS...SHERIDAN...
WALLACE...LOGAN...GOVE...GREELEY...AND WICHITA

IN NEBRASKA...

DUNDY AND HITCHCOCK

IN COLORADO...

YUMA AND EASTERN KIT CARSON.

SEVERE THUNDERSTORMS HAVE BEEN REPORTED SINCE 555 PM MDT (655 PM
CDT) IN YUMA...CHEYENNE COLORADO...AND GREELEY COUNTIES.  CONDITIONS
ARE FAVORABLE FOR CONTINUED DEVELOPMENT OF SEVERE THUNDERSTORMS INTO
THE EARLY MORNING HOURS.

SEVERE THUNDERSTORMS CONTAIN HAIL LARGER THAN A NICKEL...WINDS
STRONGER THAN 58 MPH...OR BOTH.  BLINDING RAINS AND FREQUENT
LIGHTNING OFTEN ACCOMPANY THESE STORMS.

AT SIGNS OF AN IMPENDING STORM...TOWERING THUNDERHEADS...DARKENING
SKIES...LIGHTNING AND INCREASING WINDS...MOVE TO A PLACE OF SAFETY.
TUNE IN NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.

ENTWISTLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 21, 6:01 PM MDTSevere Thunderstorm WarningGLDYuma49 min
Jun 21, 6:03 PM MDTSevere Thunderstorm WarningGLDCheyenne37 min
Jun 21, 6:50 PM MDTSevere Thunderstorm WarningGLDYuma35 min
Jun 21, 7:35 PM MDTSevere Thunderstorm WarningGLDYuma65 min
Jun 21, 9:52 PM MDTSevere Thunderstorm WarningGLDYuma22 min

Nearby

Flash Flood Warnings in Colorado, 1995Every flash flood warning in 1995

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.