Alert archive / Colorado / Flash Flood Warnings in 1997

Flash Flood Warning 2, NWS Goodland, KS

July 30, 1997Yuma County, Colorado

NWS Goodland, KS issued this flash flood warning at Jul 30, 1997, 9:59 AM MDT for Yuma County, Colorado. It was in force for 6 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
Jul 30, 1997, 9:59 AM MDT (15:59 UTC)
Expired
Jul 30, 1997, 4:00 PM MDT
In force
6 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 16:02 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, 4.0 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 12:00Z on 1997-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 158 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 1997-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
158 J/kg
Mixed-layer CIN
-94 J/kg
Mixed-layer LCL
1017 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
-23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGLD 301559
FFWGLD
COC125-302205-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
959 AM MDT WED JUL 30 1997
 
...A FLOOD WARNING IS IN EFFECT UNTIL 4 PM FOR NORTHWEST YUMA
COUNTY...

AT 950 AM LAW ENFORCEMENT OFFICIALS IN YUMA COUNTY REPORTED HIGHWAY
59 NORTH OF YUMA CLOSED DUE TO FLOODING.

SOILS IN THE AREA REMAIN SATURATED AND UNABLE TO HOLD MORE
WATER...AND MORE RAIN IS EXPECTED THIS AFTERNOON INTO TONIGHT.
 
DO NOT DRIVE THROUGH FLOODED AREAS.  SHALLOW...SWIFTLY FLOWING WATER
CAN WASH A CAR FROM A ROADWAY.  ALSO...THE ROADBED MAY NOT BE
INTACT UNDER THE WATER.

RESIDENTS AND MOTORISTS IN OTHER PARTS OF NORTHWEST YUMA COUNTY
SHOULD REMAIN ALERT FOR RISING WATEtR IN NORMALLY DRY WASHES...
DITCHES...AND CREEKS TODAY.

ENTWISTLE

&

Nearby

Flash Flood Warnings in Colorado, 1997Every flash flood warning in 1997

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.