Alert archive / Colorado / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 4, NWS Pueblo, CO

May 11, 1991Kiowa County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at May 11, 1991, 6:00 PM MDT for Kiowa County, Colorado. It was in force for 20 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 11, 1991, 6:00 PM MDT (00:00 UTC)
Expired
May 11, 1991, 6:20 PM MDT
In force
20 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Kiowa County, CO

What was reported inside it

TimeReportWhereRemark
May 11, 6:00 PM MDTHail 1.75Kiowa, 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, 0.0 hours before the alert went out and 165 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 1991-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 221 joules per kilogram.LCLEL10008507005003002001001 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 1991-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 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
221 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
3603 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
159 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPUB 120000
SVRPUB
COC061-120100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PUEBLO CO
600 PM MDT SAT MAY 11 1991

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTHEAST PART OF COLORADO
      CENTRAL KIOWA

 THIS WARNING INCLUDES THE FOLLOWING TOWNS AND CITIES...EADS AND
 CHIVINGTON.

AT 555 PM MDT A SEVERE THUNDERSTORM WAS 8 MILES SOUTH OF EADS IN
CENTRAL KIOWA COUNTY. NEAR GOLF BALL SIZE HAIL WAS REPORTED 10
MILES SOUTH OF EADS. THE STORM WAS MOVING NORTH 35 MPH AND SHOULD
APPROACH EADS SHORTLY AFTER 6 PM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS 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 ROADWAYS QUICKLY...
AVOID DRIVING INTO AREAS WHERE WATER COVERS THE ROAD.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDIT(IONS.

GRAY

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 11, 4:06 PM MDT, 1 hour 54 minutes before
COZ016-017-112300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
405 PM MDT SAT MAY 11 1991

...TORNADO WATCH FOR PART OF EASTERN COLORADO UNTIL 9 PM MDT...

AT 4 PM STRONG THUNDERSTORMS WITH POSSIBLE HAIL AND HEAVY RAIN WERE
5 MILES WEST AND 10 MILES SOUTHWEST OF THE TOWN OF EADS IN KIOWA
COUNTY...MOVING NORTH AT 30 MPH.

PEOPLE NEAR THESE THUNDERSTORMS SHOULD BE ALERT TO THE THREAT OF
SEVERE WEATHER IN THEIR AREA. IF THE WEATHER BECOMES THREATENING...
HEAD INDOORS TO STURDY SHELTER...AWAY FROM WINDOWS.

OTHER THUNDERTORMS CONTINUE TO DEVELOP ALONG THE EASTERN BORDER
COUNTIES OF COLORADO...SO STAY TUNED TO LOCAL MEDIA OR NOAA WEATHER
RADIO FOR UPDATES AND POSSIBLE WARNINGPS.

TESAR
Special weather statement, May 11, 5:25 PM MDT, 35 minutes before
COZ016-017-120130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
515 PM MDT SAT MAY 11 1991

...TORNADO WATCH FOR PART OF EASTERN COLORADO UNTIL 9 PM MDT...

AT 515 PM MDT STRONG THUNDERSTORMS WITH HEAVY RAIN AND POSSIBLE HAIL
HAD DEVELOPED OVER SOUTHEAST BENT AND SOUTHWEST PROWERS COUNTIES OF
SOUTHEAST COLORADO. THIS THUNDERSTORM WAS ABOUT 20 MILES SOUTHWEST
OF LAMAR...AND WAS MOVING NORTH 35 MPH.

THIS STORM SHOULD STRIKE A PATH BETWEEN TOWNS IN EASTERN BENT COUNTY
...SUCH AS CADDOA...HASTY AND MCCLAVE AND WESTERN PROWERS COUNTY
SUCH AS LAMAR AND WILEY BEFORE 6 PM MDT THIS EVENING. PEOPLE NEAR
THE STORM...AS WELL AS PEOPLE IN EASTERN BENT AND WESTERN PROWERS
COUNTIES SHOULD REMAIN ALERT TO THIS STORM. BE PREPARED TO MOVE TO
SAFE SHELTER...INDOORS AND AWAY FROM WINDOWS IF THE WEATHER BECOMES
THREATENING.

THE NATIONAL WEATHER SERVICE WILL WATCH THIS STORM CLOSELY AS IT
DEVELOPS AND MOVES NORTH THROUGH BENT AND PROWERS COUNTIES. STAY
TUNED TO LOCAL RADIO OR TV...OR NOAA WEATHER RADIO FOR FURTHER
UPDATES AND POSSIBLE WARNINGS.
GRAY

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 11, 6:47 PM MDTSevere Thunderstorm WarningPUBBaca58 min
May 11, 7:48 PM MDTSevere Thunderstorm WarningPUBBaca57 min
May 11, 8:46 PM MDTTornado WarningPUBBaca29 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1991Every severe thunderstorm warning in 1991

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.