Alert archive / Colorado / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 15, NWS Pueblo, CO

September 20, 1987Kiowa County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 20, 1987, 3:12 PM MDT for Kiowa County, Colorado. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Sep 20, 1987, 3:12 PM MDT (21:12 UTC)
Expired
Sep 20, 1987, 3:40 PM MDT
In force
28 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Kiowa 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, 9.2 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 12:00Z on 1987-09-20Temperature 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 12:00Z on 1987-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
2182 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
93 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 202117 COR
SVRPUB
COC061-101-202140-

BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTION
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
312 PM MDT SUN SEP 20 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 340 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF

SOUTHEAST COLORADO...EASTERN KIOWA AND NORTHEAST PUEBLO

THIS WARNING INCLUDES THE FOLLOWING TOWNS AND CITIES... PUEBLO...
BOONE AND AVONDALE IN NORTHEAST PUEBLO COUNTY.   SHERIDAN LAKE...
BRANDON AND CHIVINGTON IN EASTERN KIOWA COUNTY.

AT 305PM A SEVERE THUNDERSTORM WAS OVER THE CITY OF PUEBLO IN NORTH-
CENTRAL PUEBLO COUNTY. HAIL 3/4 INCH IN DIAMETER WAS FALLING AT
PUEBLO  MEMORIAL AIRPORT. THE STORM WAS MOVING SOUTHEAST 20 MILES AN
HOUR.
AT 305 PM MDT RADAR ALSO INDICATED A SEVERE STORM NEAR SHERIDAN LAKE
IN EASTERN KIOWA COUNTY. LARGE HAIL WAS LIKELY WITH THIS STORM AS
WELL. THE STORM IN KIOWA COUNTY WAS MOVING SOUTHWEST 10 MPH.

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 A
LOW LYING AREA.
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, Sep 20, 9:36 AM MDT, 5 hours 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
935 AM MDT SUN SEP 20 1987

   ...THUNDERSTORMS PERSISTANT IN SOUTHEAST COLORADO...

AT 933 AM MDT THERE WERE SOME THUNDERSTORMS IN KIOWA...NORTHEAST
BENT...AND PROWERS COUNTIES OF SOUTHEAST COLORADO. THE HEAVIEST
THUNDERSTORM WAS JUST WEST OF BIG BEND...37 MILES EAST NORTH
EAST OF LA JUNTA COLORADO...MOVING SOUTHEAST AT 25 MILES AN HOUR.

THE STORMS ARE EXPECTED TO MOVE ACROSS KIOWA...NORTHEAST...AND
NORTHERN PROWERS COUNTY UNTIL 1030 AM THIS MORNING. PEOPLE IN
THOSE AREAS SHOULD BE AWARE OF THE STORMS AND BE PREPARED TO
SEEK SHELTER IF THREATENING WEATHER APPROACHES.

FURTHER STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT.
GALLEGOS
Special weather statement, Sep 20, 10:40 AM MDT, 4 hours 32 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1038 AM MDT SUN SEP 20 1987

       ...THUNDERSTORMS IN SOUTHEAST COLORADO...

THUNDERSTORMS CONTINUED IN IN KIOWA...NORTHEAST BENT...
AND PROWERS COUNTIES OF SOUTHEAST COLORADO. AT 1036 AM MDT
THE HEAVIEST THUNDERSTORM WAS ABOUT 10 MILES NORTHWEST OF LAMAR
MOVING SOUTHEAST AT 10 TO 15 MILES AN HOUR.

THE STORMS ARE EXPECTED TO CONTINUE TO MOVE ACROSS KIOWA...
NORTHEAST BENT...AND NORTHERN PROWERS COUNTIES THROUGH THE NOON
HOUR. BRIEF HEAVY RAINS...GUSTY WINDS AND HAIL ARE POSSIBLE WITH
THESE STORMS AND ALL PEOPLE IN THOSE AREAS ARE URGED TO SEEK
SHELTER IF THREATENING WEATHER APPROACHES.

STAY TUNED TO RADIO...TV...OR NOAA WEATHER RADIO FOR LATER STATEMENTS
OR WARNINGS.
GALLEGOS
Special weather statement, Sep 20, 11:38 AM MDT, 3 hours 34 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1136 AM MDT SUN SEP 20 1987

       ...THUNDERSTORMS CONTINUE TO MOVE SOUTHEAST...

THUNDERSTORMS CONTINUED TO MOVE ACROSS SOUTHEAST COLORADO AND
INTO SOUTHWEST KANSAS. AT 1134 AM MDT THE SHOWERS AND THUNDER
STORMS WERE IN SOUTH CENTRAL KIOWA...PROWERS...EXTREME EAST BENT
...AND EXTREME NORTH BACA COUNTIES OF SOUTHEAST COLORADO. THE
HEAVIEST THUNDERSTORMS WERE 18 MILES SOUTHEAST OF LAMAR IN
PROWERS COUNTY...AND EAST OF TWO BUTTES IN BACA COUNTY MOVING
SOUTHEAST AT 15 MPH.

BRIEF HEAVY RAINS...GUSTY WINDS AND HAIL ARE POSSIBLE WITH
THESE STORMS AND ALL PEOPLE IN THOSE AREAS ARE URGED TO SEEK
SHELTER IF THREATENING WEATHEoR APPROACHES UNTIL 1230 PM MDT.
GALLEGOS
Special weather statement, Sep 20, 1:09 PM MDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
108 PM MDT SUN SEP 20 1987

       ...HEAVY THUNDERSTORMS IN SOUTHEAST COLORADO...

AT 105 PM MDT VERY HEAVY THUNDERSTORMS WERE 5 MILES SOUTHEAST OF
KIM IN LAS ANIMAS COUNTY AND 5 MILES SOUTHWEST OF CAMPO IN BACA
COUNTY MOVING SOUTHEAST AT 15 TO 20 MILES AN HOUR.

BRIEF HEAVY RAINS...GUSTY WINDS AND HAIL ARE POSSIBLE WITH
THESE STORMS AND ALL PEOPLE IN THOSE AREAS ARE URGED TO SEEK
SHELTER IF THREATENING WEATHER APPROACHES UNTIL 140 PM MDT.

OTHER SHOWERS AND THUNDERSTORMS EXTENDED FROM PROWERS COUNTY
COLORADO INTO KANSAS AND FROM EAST LAS ANIMAS COUNTY COLORADO
INTO NORTHEAST NEW MEXICO. SHOWERS WERE ALSO SOUTH OF %TRINIDAD
IN WEST LAS ANIMAS COUNTY.

OTHER STATEMENTS MAY BE ISSUED IF CONDITIONS WARRANT. SO STAY
TUNED TO RADIO...TV...OR NOAA WEATHER RADIO FOR THE LATEST
AND UP TO DATE WEATHER INFORMATION.
GALLEGOS
Special weather statement, Sep 20, 1:42 PM MDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLORADO SPRINGS, CO
141 PM MDT SUN SEP 20 1987

...THUNDERSTORMS BUILDING IN SOUTHEAST EL-PASO AND SOUTHERN LINCOLN
   COUNTIES...

WIDELY SCATTERED THUNDERSTORMS ARE IN SOUTHEAST EL PASO COUNTY ABOUT 10
SOUTHEAST OF COLORADO SPRINGS. A VERY HEAVY THUNDERSTORM WAS LOCATED
ABOUT 10 NORTHWEST OF KARVEL OR ABOUT  35 MILES SOUTH OF LIMON IN
SOUTHERN LINCOLN COUNTY. THESE STORMS ARE MOVING TO THE SOUTHE`AST
AT 25 MPH AND COULD PRODUCE  BRIEF HEAVY RAIN...GUSTY WINDS AND HAIL.

PERSONS IN SOUTHEAST EL-PASO AND SOUTHERN LINCOLN COUNTIES SHOULD BE
ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS FOR THE REST OF THIS
AFTERNOON.
NOVAK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 3:12 PM MDTSevere Thunderstorm WarningPUBPueblo28 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1987Every severe thunderstorm warning in 1987

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.