Alert archive / Colorado / Flash Flood Warnings in 1986

Flash Flood Warning 3, NWS Goodland, KS

September 10, 1986El Paso County, Colorado

NWS Goodland, KS issued this flash flood warning at Sep 10, 1986, 7:37 AM MDT for El Paso County, Colorado. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Sep 10, 1986, 7:37 AM MDT (13:37 UTC)
Expired
Sep 10, 1986, 8:45 AM MDT
In force
68 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

Fort Carson/Butt, CO (KFCS), launched 12:00Z, 1.6 hours before the alert went out and 23 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, Fort Carson/Butt, CO at 12:00Z on 1986-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Carson/Butt, CO at 12:00Z on 1986-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.19395878Sfc1 km3 km6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2223 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
-11 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 KCOS 101337
FFWCOS
COC041-101445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
737 AM MDT WED SEP 10 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 845 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 NECESSAR3Y PRECAUTIONS IMMEDIATELY.

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

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.