Alert archive / Colorado / Flash Flood Warnings in 1990

Flash Flood Warning 2, NWS Goodland, KS

July 9, 1990El Paso County, Colorado

NWS Goodland, KS issued this flash flood warning at Jul 9, 1990, 5:39 PM MDT for El Paso County, Colorado. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 9, 1990, 5:39 PM MDT (23:39 UTC)
Expired
Jul 9, 1990, 7:45 PM MDT
In force
2 hr
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 12:00Z, 11.7 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 12:00Z on 1990-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1990-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.193958Sfc1 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
4 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
818 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
9 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 092339
FFWCOS
COC041-100145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
539 PM MDT MON JUL 9 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 745 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY

   IN THE EAST CENTRAL PART OF COLORADO
      EL PASO

FLOODING IS LIKELY ALONG MONUMENT CREEK AND FOUNTAIN CREEK FROM
CENTRAL COLORADO SPRINGS TO THE TOWN OF FOUNTAIN.  THE PUBLIC
HAS ALREADY REPORTED FLOODING CONDITIONS BEGINNING TO DEVELOP
IN THESE AREAS AS WELL AS NUMEROUS REPORTS OF STREET AND INTER-
SECTION FLOODING IN COLORADO SPRINGS...WIDEFIELD AND SECURITY.

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 NECESSARY PRECAUTIONS IMMEDIATELY.

 HEAVY RAIN IS STILL FALLING OVER PORTIONS OF COLORADO SPRINGS...
 SECURITY AND FOUNTAIN.

 CROWLEY

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.

In the hours before

Special weather statement, Jul 9, 4:41 PM MDT, 58 minutes before
KSZ001-002-005-005-008-092345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
535 PM CDT MON JUL 9 1990

AT 535 PM CDT RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS OVER
WESTCENTRAL KANSAS. THE NORTHERN EDGE OF THE STORMS EXTEND FROM 15 MILES
SOUTHWEST OF HAYS TO 55 MILES SOUTH OF GOODLAND NEAR TRIBUNE.

STRONGEST THUNDERSTORM WAS 20 MILES WEST OF SCOTT CITY..JUST TO THE NORTH
OF LEOTI. THUNDERSTORMS WERE MOVING NORTHEAST ATT 15 MPH.

HEAVY RAINS..SMALL HAIL..GUSTY WINDS AND DANGEROUS LIGHTNING CAN BE
EXPECTED WITH THE HEAVIER STORMS.

FREIBURGER
Special weather statement, Jul 9, 5:11 PM MDT, 28 minutes before
KSZ001-002-005-005-008-100030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
608 PM CDT MON JUL 9 1990

AT 605 PM CDT RADAR INDICATED AN AREA OF SHOWERS AND THUNDERSTORMS IN A
50 MILES WIDE AREA FROM 25 MILES SOUTH OF HAY NEAR LA CROSSE TO 50 MILES
SOUTH OF GOODLAND..OR 10 MILES NORTH OF TRIBUNE. MOVEMENT WAS NORTHEAST
AT 15 MPH.

STRONGEST THUNDERSTORM WAS 15 MILES NORTHWEST TO 25 MILES NORTHWEST OF
SCOTT CITY ACROSS NORTHERN WIzCHITA COUNTY.

HEAVY RAINS..SMALL HAIL..GUSTY WINDS AND DANGEROUS LIGHTNING CAN BE
EXPECTED WITH THE HEAVIER STORMS.

FREIBURGER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 3:25 PM MDTSevere Thunderstorm WarningGLDElbert65 min
Jul 9, 4:05 PM MDTTornado WarningGLDElbert, Lincoln55 min
Jul 9, 4:12 PM MDTTornado WarningGLDEl Paso63 min
Jul 9, 4:15 PM MDTTornado WarningGLDElbert, Lincoln45 min

Nearby

Flash Flood Warnings in Colorado, 1990Every flash flood warning in 1990

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.