Alert archive / Colorado / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Goodland, KS

May 8, 1990Kit Carson County, Colorado

NWS Goodland, KS issued this severe thunderstorm warning at May 8, 1990, 6:59 PM MDT for Kit Carson County, Colorado. It was in force for 61 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 8, 1990, 6:59 PM MDT (00:59 UTC)
Expired
May 8, 1990, 8:00 PM MDT
In force
61 min
Issued by
NWS Goodland, KS
Area
Whole counties

County Kit Carson County, CO

The radar

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

What was reported inside it

TimeReportWhereRemark
May 8, 7:00 PM MDTThunderstorm Wind 52Kit Carson, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 1.0 hours before the alert went out and 83 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 1990-05-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 1990-05-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
231 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 090100
SVRCOS
COC063-090200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
659 PM MDT TUE MAY 8 1990
 
THE NATIONAL WEATHER SERVICE IN COLORADO SPRINGS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM MDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN EAST CENTRAL COLORADO
          ...KIT CARSON
 
THE HEAVIEST THUNDERSTORMS ARE 20 MILES NORTHEAST OF BOYERO ON THE
LINCOLN-KIT CARSON COUNTY LINE AND NORTH OF STRATTON IN CENTRAL KIT
CARSON COUNTY. THESE STORMS HAVE PRODUCED STRONG GUSTY WINDS ALONG
WITH MARBLE SIZE HAIL.   THEY ARE MOVING TO THE EAST AT 35 MPH.
THESE STORMS COULD POSSIBLY PRODUCE TORNADOS ALSO.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SpO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, May 8, 6:12 PM MDT, 47 minutes before
KSZ001-002-090110-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
610 PM MDT TUE MAY 8 1990

A STRONG LINE OF THUNDERSTORMS IN NORTHEAST COLORADO IS MOVING EAST AND
SOUTHEAST TOWARD EXTREME NORTHWEST KANSAS. THE STORMS ARE 50 MILES WEST
OF GOODLAND WITH THE STRONGEST CENTER WITHIN A 20 MILE RADIUS OF JOES.

THE STORMS SHOULD ARRIVE IN NORTHWEST KANSAS BY 7PM AND IN THE GOODLAND
AND ST FRANCIS AREAS BETWEEN 730 AND 8PM MDT.

STRON;G GUSTY WINDS...BRIEF VERY HEAVY RAINS...DANGEROUS LIGHTNING...AND
SOME SMALL HAIL CAN BE EXPECTED WITH THE HEAVIER STORM CENTERS.

MYERS
Special weather statement, May 8, 6:57 PM MDT, 2 minutes before
KSZ001-002-090210-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GOODLAND KS
755 PM MDT TUE MAY 8 1990

.....SEVERE THUNDERSTORM WATCH #202 FOR WESTERN KANSAS TILL 1AM MDT...

A GUST FRONT IN ADVANCE OF THE THUNDERSTORMS STRETCHES FROM 30 MILES
NORTH OF GOODLAND TO 30 MILES SOUTHWEST OF GOODLAND MOVING SOUTHEAST
35 MPH. THE 40 TO 50 MPH WINDS WILL BE IN THE GOODLAND AREA BETWEEN 7
AND 715PM MDT.

THUNDERSTORMS ALONG THE KANSAS...COLORADO BORDER WEST OF GOODLAND
ARE MOVING SOUTHEAST 35 MPH. LOTS OF DANGEROUS LIGHTNING...BRIEF VERY
HEAVY RAINS...AND SOME SMALL HAIL CAN BE EXPECTED WITH THE STORNGER
STORM CENTERS.

THE STRONG STORM CENTERS WILL ARRIVE IN GOODLAND BETWEEN 715 AND 730.

MYERS

The office that day

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

IssuedProductOfficeCountiesLasted
May 8, 7:37 PM MDTSevere Thunderstorm WarningGLDCheyenne68 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1990Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.