Alert archive / Colorado / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 34, NWS Pueblo, CO

August 2, 1986Las Animas County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Aug 2, 1986, 4:50 PM MDT for Las Animas County, Colorado. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Aug 2, 1986, 4:50 PM MDT (22:50 UTC)
Expired
Aug 2, 1986, 5:50 PM MDT
In force
60 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Las Animas 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, 10.8 hours before the alert went out and 293 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 1986-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 828 joules per kilogram.LCLLFCEL10008507005003002001001 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 1986-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
828 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1202 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPUB 022301 COR
SVRPUB
COC071-022350-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
450 PM MDT SAT AUG 2 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
WARNING EFFECTIVE UNTIL 550 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTY OF

SOUTHEAST COLORADO...NORTHWEST AND NORTH CENTRAL LAS ANIMAS COUNTY
INCLUDING THE TOWNS OF THATCHER..MODEL..AND PINON CANYON.

AT 445 PM MDT RADAR INDICATED SEVERE THUNDERSTORMS NORTHWEST OF
THATCHER ON THE HUERFANO..LAS ANIMAS COUNTY LINE AND ABOUT 5 MILES
SOUTHEAST OF THATCHER. THE STORMS WERE PRODUCING HAIL AS THEY MOVED
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.

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, Aug 2, 1:31 PM MDT, 3 hours 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
130 PM MDT SAT AUG 2 1986

 ......HEAVY THUNDERSTORMS AGAIN MOVE THROUGH EL PASO COUNTY...

THUNDERSTORMS ARE FORMING AGAIN THIS AFTERNOON ALONG THE FRONT
RANGE AND OVER THE MOUNTAINS. SOME OF THESE STORMS MAY CONTAIN LARGE
HAIL..DAMAGING WIND..AND HEAVY RAIN.  WITH THE GROUND ALREADY
SATURATED FROM LAST NIGHT'S RAIN...CREEKS MAY RISE TO BANKFULL IN
A SHORT TIME...AND LOW LYING AREAS SUCH AS UNDERPASSES AND DITCHES
MAY BE FLOODED.

REPORTS HAVE BEEN RECEIVED FROM WOODLAND PARK OF 1/2 INCH HAIL
THIS AFTERNOON...AND MANY AREAS IN EL PASO COUNTY HAVE BEEN
REPORTING BRIEF HEAVY RAIN.

STAY TUNED TO NATIONAL WEATHER SERVICE RADIO STATION..OR LOCAL
RADIO AND TV FOR FURTHER STATEMENTS OR WARNINGS ON THESE
THUNDERSTORMS.

GURNEY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 6:20 PM MDTSevere Thunderstorm WarningPUBBaca60 min
Aug 1, 7:00 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers60 min
Aug 1, 7:45 PM MDTSevere Thunderstorm WarningPUBProwers55 min
Aug 1, 8:50 PM MDTSevere Thunderstorm WarningPUBBent, Prowers60 min
Aug 1, 8:50 PM MDTSevere Thunderstorm WarningPUBOtero60 min
Aug 2, 2:01 AM MDTSevere Thunderstorm WarningPUBPueblo44 min
Aug 2, 3:15 PM MDTSevere Thunderstorm WarningPUBCuster, Fremont45 min

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.