Alert archive / Colorado / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 37, NWS Pueblo, CO

August 21, 1986Pueblo County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Aug 21, 1986, 8:50 PM MDT for Pueblo County, Colorado. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Aug 21, 1986, 8:50 PM MDT (02:50 UTC)
Expired
Aug 21, 1986, 9:50 PM MDT
In force
60 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Pueblo 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, 2.8 hours before the alert went out and 219 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 1986-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 280 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 1986-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 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
280 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
1838 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPUB 220251
SVRPUB
COC101-220349-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
850 PM MDT THU AUG 21 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 950 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY OF

SOUTHEAST COLORADO...PUEBLO..TO INCLUDE THE CITY OF PUEBLO.

AT 850 PM MDT HEAVY RAINS..GUSTY WINDS AND 1/4 INCH HAIL WAS
REPORTED IN PUEBLO.

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.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE OR
NO ADVANCE WARNING...SO BE ON THE LOOKOUT AND BE PREPARED TO MOVE TO
A PLACE OF SAFETY IF ONE IS SPOTTED.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORTS TO THE NATIONAL WEATHER SERVICE IN PUEBLO.
WOODS

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 21, 8:06 PM MDT, 44 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
805 PM MDT THU AUG 21 1986

          ...HEAVY THUNDERSTORMS IN PUEBLO COUNTY...

AT 805 PM MDT A LINE OF SHOWERS AND THUNDERSTORMS EXTENDED FROM
NORTHWEST TO SOUTHWEST PUEBLO COUNTY ABOUT 5 MILES WEST OF THE
CITY OF PUEBLO. THE HEAVIEST STORMS WERE 8 MILES NORTHWEST OF
THE CITY OF PUEBLO. THESE STORMS WERE MOVING TO THE EAST AT 20
MILES AN HOUR AND WILL BE MOVING OVER THE CITY OF PUEBLO.

SHOWERS AND THUNDERSTORMS WILL CONTINUE THIS EVENING IN SOUTHEAST
COLORADO..THESE STORMS COULD PRODUCE STRONG WINDS..HAIL AND BRIEF
HEAVY RAIN. PERSONS NEAR STORMS SHOULD REMAIN ALERT AND BE PREPARED
TO MOVE TO SAFETY IF THREATENING WEATHER APPlROACHES.

FURTHER STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT. YOU SHOULD
STAY TUNED TO RADIO..TV OR NOAA WEATHER RADIO FOR THE LATEST
INFORMATION.
WOODS

Nearby

Severe Thunderstorm Warnings in Colorado, 1986Every severe thunderstorm warning in 1986

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.