Alert archive / Colorado / Flash Flood Warnings in 1998

Flash Flood Warning 13, NWS Goodland, KS

July 25, 1998Yuma County, Colorado

NWS Goodland, KS issued this flash flood warning at Jul 25, 1998, 11:35 PM MDT for Yuma County, Colorado. 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 counties it named.

The facts

Issued
Jul 25, 1998, 11:35 PM MDT (05:35 UTC)
Expired
Jul 26, 1998, 2:30 AM 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 05:35 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, 5.6 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 1998-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 204 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 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 1998-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 km3 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
204 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1605 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
28 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 260536
FFWGLD

COC125-260830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GOODLAND KS
1135 PM MDT SAT JUL 25 1998

THE NATIONAL WEATHER SERVICE IN GOODLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN YUMA COUNTY IN NORTHEASTERN COLORADO

* UNTIL 230 AM MDT

* LOCAL COUNTY OFFICIALS REPORTED HIGHWAY 385 WAS UNDER WATER IN
PLACES BETWEEN IDALIA AND THE KIT CARSON COUNTY LINE IN THE
VICINITY OF BONNY DAM. LInTTLE ADDITIONAL RAINFALL IS EXPECTED
UPSTREAM...AND WATERS FLOWING ACROSS HIGHWAY 385 ARE EXPECTED TO
RECEDE BY 230 AM.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

SKIPPER


&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 7:37 PM MDTSevere Thunderstorm WarningGLDYuma63 min
Jul 25, 8:26 PM MDTSevere Thunderstorm WarningGLDCheyenne64 min
Jul 26, 12:32 AM MDTFlash Flood WarningGLDCheyenne6 hr

Nearby

Flash Flood Warnings in Colorado, 1998Every flash flood warning in 1998

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.