Alert archive / Colorado / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 13, NWS Pueblo, CO

September 6, 1987Prowers County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 6, 1987, 7:51 PM MDT for Prowers County, Colorado. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Sep 6, 1987, 7:51 PM MDT (01:51 UTC)
Expired
Sep 6, 1987, 8:30 PM MDT
In force
39 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

Dodge City, (KDDC), launched 00:00Z, 1.9 hours before the alert went out and 220 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, Dodge City, at 00:00Z on 1987-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 299 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, Dodge City, at 00:00Z on 1987-09-07The 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
299 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
962 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
23 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 070151
SVRPUB
COC099-070230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
751 PM MDT SUN SEP 6 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 830 PM MDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

SOUTHEAST COLORADO...NORTHWEST PROWERS

THIS WARNING INCLUDES THE FOLLOWING TOWNS AND CITIES... LAMAR...
WILEY...AND KORNMANN.

A 745 PM MDT AN OBSERVER IN LAMAR INDICATED HAIL 1 INCH IN DIAMETER
AND WIND UP TO 29 MPH. THE THUNDERSTORM WAS OVER LAMAR IN NORTHWEST
PROWERS COUNTY AND WAS MOVING SOUTHEAST 20 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.

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.