Alert archive / Colorado / Flash Flood Warnings in 1986

Flash Flood Warning 2, NWS Goodland, KS

August 2, 1986El Paso County, Colorado

NWS Goodland, KS issued this flash flood warning at Aug 2, 1986, 1:09 AM MDT for El Paso County, Colorado. It was in force for 111 min.

The area

The counties it named.

The facts

Issued
Aug 2, 1986, 1:09 AM MDT (07:09 UTC)
Expired
Aug 2, 1986, 3:00 AM MDT
In force
111 min
Issued by
NWS Goodland, KS
Area
Whole counties

County El Paso County, CO

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 7.2 hours before the alert went out and 160 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 1986-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 591 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 00:00Z on 1986-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
591 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
1955 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KCOS 020709
FFWCOS
COC041-020900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
109 AM MDT SAT AUG 2 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 300 AM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

EAST CENTRAL COLORADO...EL PASO

FLASH FLOODING WAS REPORTED IN MANY AREAS AROUND AND IN THE TOWNS
OF SECURITY..WIDEFIELD AND WESTERN AND NORTHERN COLORADO SPRINGS.
JUST OVER AN INCH OF RAIN FELL WITHIN 15 MINUTES AT THE COLORADO
SPRINGS AIRPORT AS WELL.

IF SEVERE WEATHER APPROACHES YOUR AREA..GO TO A STURDY SHELTER AWAY
FROM CREEK BEDS AND OTHER LOW AREAS PRONE TO FLOODING.  REMEMBER...
A SEVERE THUNDERSTORM CAN PRODUCE LARGE HAIL...DAMAGING WINDS OF OVER
60 MPH...DEADLY LIGHTNING...AND HEAVY RAINS THAT CAN QUICKLY FLOOD
LOW LYING AREAS.

A FLASH FLOOD WARNING MEANS FLOODING IS IMMINENT OR HAS BEEN
REPORTED.  TAKE NECESSARYD PRECAUTIONS IMMEDIATELY.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORTS TO THE LOCAL NATIONAL WEATHER SERVICE OFFICE.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 6:20 PM MDTSevere Thunderstorm WarningGLDEl Paso55 min
Aug 1, 7:15 PM MDTSevere Thunderstorm WarningGLDEl Paso60 min
Aug 2, 2:03 AM MDTSevere Thunderstorm WarningGLDEl Paso87 min
Aug 2, 1:56 PM MDTSevere Thunderstorm WarningGLDEl Paso64 min
Aug 2, 4:26 PM MDTSevere Thunderstorm WarningGLDElbert44 min

Nearby

Flash Flood Warnings in Colorado, 1986Every flash flood warning in 1986

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.