Alert archive / Colorado / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 15, NWS Pueblo, CO

August 4, 1990Crowley County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Aug 4, 1990, 6:20 PM MDT for Crowley County, Colorado. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Aug 4, 1990, 6:20 PM MDT (00:20 UTC)
Expired
Aug 4, 1990, 7:15 PM MDT
In force
55 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Crowley 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, 0.3 hours before the alert went out and 178 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 1990-08-05Temperature 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 1990-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2303 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
125 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 KPUB 050020
SVRPUB
COC025-050115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE PUEBLO CO
620 PM MDT SAT AUG 4 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 715 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE SOUTHEAST PART OF COLORADO
      SOUTH CENTRAL AND SOUTHEAST CROWLEY

 THIS WARNING INCLUDES THE FOLLOWING TOWNS AND CITIES...ORDWAY AND
 SUGAR CITY.

AT 615 PM MDT A SEVERE THUNDERSTORM WAS 5 MILES NORTH OF SUGAR
CITY...17 MILES NORTH NORTHWEST OF LA JUNTA. THE STORM WAS MOVING
SOUTH 20 MPH AND SHOULD BE NEARING SUGAR CITY BEFORE 630 PM MDT.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVEb INSIDE A
STRONG BUILDING.  DO NOT STAND NEAR WINDOWS.  DO NOT USE TELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED.  MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS.

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, Aug 4, 1:19 PM MDT, 5 hours 1 minute before
COZ014-042015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
115 PM MDT SAT AUG 4 1990

... THUNDERSTORMS BUILDING OVER THE MOUNTAINS ...

AT 110 PM LIMON RADAR INDICATED THUNDERSTORMS...SOME WITH HEAVY RAIN
AND POSSIBLE HAIL...IN THE MOUNTAINS WEST OF COLORADO SPRINGS.  THE
STRONGEST STORMS WERE NOTED OVER NORTHERN TELLER COUNTY...ABOUT 5
MILES WEST OF WOODLAND PARK.

THESE STORMS ARE MOVING TO THE EAST AT ABOUT 15 MPH AND MAY PRODUCE
LOCALLY HEAVY RAIN...HAIL...GUSTY WIND AND FREQUENT LIGHTNING.

PERSONS ARE ADVISED TO STAY ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS
AND BE PREPARED TO MOVE TO A PLACE OF SAFETY SHOULD THREATENING WEATHER
APPROACHE.

CROWLEY9
Special weather statement, Aug 4, 2:46 PM MDT, 3 hours 34 minutes before
COZ006-014-015-016-042300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
240 PM MDT SAT AUG 4 1990

...STRONG THUNDERSTORMS DEVELOP IN FREMONT COUNTY...

AT 235 PM MDT THUNDERSTORMS WITH HEAVY RAIN AND POSSIBLE HAIL HAD
DEVELOPED AND MOVED INTO CENTRAL FREMONT COUNTY OF SOUTHEAST COLORADO.
THE THUNDERSTORM WAS NEAR TEXAS CREEK ABOUT 45 MILES WEST SOUTHWEST
OF COLORADO SPRINGS. A REPORT FROM PARKDALE...8 MILES WEST OF
CANON CITY INDICATED HEAVY RAIN THERE AT 235 PM MDT. THE STORMS
WERE MOVING SOUTHEAST 10 MPH.

PEOPLE IN FREMONT COUNTY NEAR THESE THUNDERSTORMS SHOULD REMAIN ALERT
AS HEAVY RAIN...HAIL...DANGEROUS LIGHTNING AND GUSTY WINDS ARE
POSSIBLE WITH THE STORMS. BECAUSE OF THE TERRAIN IN FREMONT COUNTY
SOME RAPID RUNOFF OF RAINFALL WILL BE POSSIBLE IN HEAVY RAIN AND
MOTORISTS AND OTHERS IN THE AREA SHOULD BE ALERT FOR FLOODING.
GRAY
Special weather statement, Aug 4, 2:51 PM MDT, 3 hours 29 minutes before
COZ006-014-015-016-042300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
245 PM MDT SAT AUG 4 1990

...STRONG THUNDERSTORMS DEVELOP IN FREMONT COUNTY...

AT 240 PM MDT THUNDERSTORMS WITH HEAVY RAIN AND POSSIBLE HAIL HAD
DEVELOPED AND MOVED INTO CENTRAL FREMONT COUNTY OF SOUTHEAST COLORADO.
THE THUNDERSTORM WAS NEAR TEXAS CREEK ABOUT 45 MILES WEST SOUTHWEST
OF COLORADO SPRINGS. A REPORT FROM PARKDALE...8 MILES WEST OF
CANON CITY...OR 15 MILES EAST OF TEXAS CREEK...INDICATED HEAVY RAIN
THERE AT 235 PM MDT. THE STORMS WERE MOVING SOUTHEAST 10 MPH.

PEOPLE IN FREMONT COUNTY NEAR THESE THUNDERSTORMS SHOULD REMAIN ALERT
AS HEAVY RAIN...HAIL...DANGEROUS LIGHTNING AND GUSTY WINDS ARE
POSSIBLE WITH THE STORMS. BECAUSE OF THE TERRAIN IN FREMONT COUNTY
SOME RAPID RUNOFF OF RAINFALL WILL BE POSSIBLE IN HEAVY RAIN AND
MOTORISTS AND OTHERS IN THE AREA SHOULD BE ALERT FOR FLOODING.
GRAY
Special weather statement, Aug 4, 4:28 PM MDT, 1 hour 52 minutes before
COZ015-016-017-050100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
425 PM MDT SAT AUG 4 1990

...THUNDERSTORMS CONTINUE TO DEVELOP IN SOUTHEAST COLORADO...

AT 420 PM MDT THUNDERSTORMS CONTINUED TO DEVELOP OVER PARTS OF SOUTHEAST
COLORADO. THE STRONGEST STORMS WERE IN NORTHEAST CROWLEY AND NORTHWEST
KIOWA COUNTY...25 MILES NORTH OF LA JUNTA. OTHER THUNDERSTORMS WERE IN
NORTHWEST PUEBLO COUNTY 15 TO 20 MILES NORTHWEST OF PUEBLO. THE STORMS
WERE MOVING SOUTHEAST 10 MPH.

PEOPLE NEAR THUNDERSTORMS IN SOUTHEAST COLORADO THE REST OF TODAY AND
INTO THE EVENING SHOULD REMAIN AWARE OF THE WEATHER IN THE AREA.
LOCALLY HEAVY RAIN...HAIL...DANGEROUS LIGHTNING AND GUSTY WINDS ARE
POSSIBLE. MOVE INDOORS TO SAFE SHELTER IF THREATENING WEATHER
APPROACHES.
GRAY
Special weather statement, Aug 4, 4:33 PM MDT, 1 hour 47 minutes before
COZ014-042330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
425 PM MDT SAT AUG 4 1990

... THUNDERSTORMS OVER THE PIKES PEAK REGION ...

AT 415 PM LIMON RADAR INDICATED THUNDERSTORMS...SOME WITH HEAVY RAIN
AND POSSIBLE HAIL...IN SEVERAL LINES ACROSS THE PIKES PEAK AND EASTERN
PLAINS OF COLORADO. ONE LINE WAS FROM SOUTHWEST OF COLORADO SPRINGS
IN EL PASO COUNTY NORTHEAST TO NEAR ELIZABETH IN ELBERT COUNTY...ABOUT
30 MILES NORTH OF COLORADO SPRINGS.

ANOTHER LINE OF THUNDERSTORMS WAS FROM 25 SOUTHEAST OF COLORADO SPRINGS
NEAR EDISON NORTH NORTHEAST TO 35 MILES NORTHWEST OF LIMON...NEAR
BYERS...THEN ON NORTH.

THESE STORMS ARE MOVING TO THE SOUTHEAST AT ABOUT 15 MPH AND MAY
PRODUCE LOCALLY HEAVY RAIN...HAIL...GUSTY WIND AND FREQUENT LIGHTNING.

PERSONS SHOULD STAY ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AND
BE PREPARED TO MOVE TO A PLACE OF SAFETY SHOULD THREATENING WEATHER
APPROACH.

HALL
Special weather statement, Aug 4, 5:30 PM MDT, 50 minutes before
COZ015-016-017-050130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
525 PM MDT SAT AUG 4 1990

...THUNDERSTORMS WITH HEAVY RAIN IN SOUTHEAST COLORADO...

AT 520 PM MDT THUNDERSTORMS...SOME WITH HEAVY RAIN CONTINUE TO MOVE
THROUGH SOUTHEAST COLORADO. THE STRONGEST STORMS WERE IN EASTERN CROWLEY
COUNTY...NORTH OF SUGAR CITY...MOVING SOUTH 10 MPH.

THUNDERSTORMS WERE IN PUEBLO COUNTY IN AND AROUND THE CITY OF PUEBLO
AS WELL AS IN EASTERN HUERFANO COUNTY NORTHEAST OF WALSENBURG. RAIN
HAD BEGUN IN VARIOUS PARTS OF PUEBLO...ALONG WITH GUSTY WINDS AND
OCCASIONAL LIGHTNING. THESE STORMS WERE MOVING SOUTHEAST 10 TO 15 MPH.

PEOPLE NEAR THUNDERSTORMS IN SOUTHEAST COLORADO THIS EVENING SHOULD
STAY ALERT TO CHANGING WEATHER CONDITIONS. LOCALLY HEAVY RAIN...HAIL...
DANGEROUS LIGHTNING AND GUSTY WINDS ARE POSSIBLE. DO NOT REMAIN OUTDOORS
...BUT MOVE INSIDE TO SAFE SHELTER IF THREATENING WEATHER APPROACHES.
GRAY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 7:44 PM MDTTornado WarningPUBLas Animas31 min
Aug 5, 2:56 PM MDTSevere Thunderstorm WarningPUBLas Animas34 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; the sounding from the Mesonet's radiosonde archive.