Alert archive / Colorado / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 38, NWS Pueblo, CO

September 10, 1986Prowers County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 10, 1986, 5:47 PM MDT for Prowers County, Colorado. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Sep 10, 1986, 5:47 PM MDT (23:47 UTC)
Expired
Sep 10, 1986, 6:15 PM MDT
In force
28 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Prowers 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

Fort Carson/Butt, CO (KFCS), launched 12:00Z, 11.8 hours before the alert went out and 217 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, Fort Carson/Butt, CO at 12:00Z on 1986-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Carson/Butt, CO at 12:00Z on 1986-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.19395878Sfc1 km3 km6 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
2223 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
-11 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 102348
SVRPUB
COC099-110030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
547 PM MDT WED SEP 10 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY OF

SOUTHEAST COLORADO...PROWERS...INCLUDING THE TOWN OF CHENEY CENTER.

AT 545 PM MDT A SEVERE THUNDERSTORM WAS INDICATED BY RADAR IN EASTERN
PROWERS COUNTY ABOUT 10 MILES SOUTH SOUTHWEST OF HOLLY. THE STORM
WAS MOVING EAST NORTHEAST 20 TO 25 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.

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.
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 10, 5:44 PM MDT, 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
545 PM MDT WED SEP 10 1986

...VERY STRONG THUNDERSTORM IN SOUTHEAST PROWERS COUNTY...

AT 535 PM MDT A VERY STRONG THUNDERSTORM HAD DEVELOPED IN SOUTHEAST
PROWERS COUNTY OF SOUTHEAST COLORADO. THE VERY STRONG STORM WAS ABOUT
15 MILES SOUTH SOUTHWEST OF HOLLY...OR 55 TO 60 MILES EAST SOUTHEAST
OF LA JUNTA. THE THUNDERSTORM WAS MOVING EAST NORTHEAST 20 TO 25 MPH.
THE STORM SHOULD MOVE SOMEWHAT SOUTH OF HOLLY BEFORE ENTERING WESTERN
KANSAS AROUND 6 PM MDT...BUT PEOPLE IN THE HOLLY AND GRANADA AREAS
COULD EXPERIENCE SOME OF THE EFFECTS OF THIS DANGEROUS STORM.

HAIL WAS INDICATED IN THIS THUNDERSTORM BY RADAR AND THE POSITION OF
A COLD FRONT IN SOUTHEAST COLORADO COULD PRODUCE AN EXTREMELY HEAVY
THUNDERSTORM. A FEW FUNNEL CLOUDS ARE POSSIBLE ALONG WITH VERY HEAVY
RAIN..STRONG THUNDERSTORM WINDS AND INTENSE LIGHTNING. PEOPLE NEAR
THIS STORM SHOULD BE PREPARED TO MOVE TO SAFE SHELTER IF THREATENING
WEATHER APPROACHES.

LATER STATEMENTS OR WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
GRAY

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.