Alert archive / Colorado / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 28, NWS Pueblo, CO

August 1, 1986Baca County, Prowers County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Aug 1, 1986, 7:00 PM MDT for Baca County, Prowers County, Colorado. It was in force for 60 min.

The area

The counties it named.

The facts

Issued
Aug 1, 1986, 7:00 PM MDT (01:00 UTC)
Expired
Aug 1, 1986, 8:00 PM MDT
In force
60 min
Issued by
NWS Pueblo, CO
Area
Whole counties

Counties Baca County, CO, 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, 1.0 hours before the alert went out and 227 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 1986-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1619 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 1986-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 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
1619 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1564 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.2
Supercell composite
6.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPUB 020105
SVRPUB
COC009-099-020200-

BULLETIN...IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
700 PM MDT FRI AUG 1 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 800 PM MDT  FOR PERSONS IN THE FOLLOWING COUNTIES OF

SOUTHEAST COLORADO...EASTERN BACA..EASTERN PROWERS

AT 700 PM MDT RADAR INDICATED SEVERE THUNDERSTORMS OVER EASTERN BACA
AND EASTERN PROWERS COUNTIES. THESE STORMS EXTENDED FROM JUST SOUTH
OF GRANADA IN PROWERS COUNTY TO SOUTH OF WALSH IN EASTERN BACA.
MOVEMENT WAS TO THE EAST-SOUTHEAST AT 20 MILES AN HOUR. LARGE HAIL
AND HEAVY RAIN WAS INDICATED WITH THESE STORMS.

VERY HEAVY RAIN..STRONG GUSTY WINDS..LARGE HAIL..AND FREQUENT LIGHTNING
ARE LIKELY WITH THESE STORMS. FLOODING OF LOW LYING AREAS IS ALSO
POSSIBLE.

PERSONS NEAR STORMS SHOULD SEEK SAFE SHELTER WITHOUT DELAY IF
THREATENING WEATHER APPROACHES. ASK YOUR LOCAL LAW ENFORCEMENT
AGENCY TO RELAY YOUR SEVERE WEATHER REPORTS TO THE NEAREST NATIONAL
WEATHER SERVICE OFFICE.
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 1, 4:37 PM MDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE COLORADO SPRINGS CO
440 PM MDT FRI AUG  1 1986

     ...THUNDERSTORMS IN EL PASO COUNTY ONCE AGAIN...

AT 435 PM RADAR INDICATES A HEAVY THUNDERSTORM 10 MILES SOUTH OF
COLORADO SPRINGS COLO MOVING TO THE SOUTHEAST AT 30 MPH.  THIS
STORM COULD PRODUCE STRONG GUSTY WINDS AND BRIEF HEAVY RAIN AS IT
MOVES ACROSS I-25.

MOTORISTS DRIVING BETWEEN COLORADO SPRINGS AND PUEBLO SHOULD BE
ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED FOR PERIODS OF
LOW VISIBILITY DUE TO HEAVY RAIN.

STAYED TUNED TO YOUR LOCAL RADIO AND T.V. STATIONS OR THIS NATIONAL
WEATHER SERVICE RADIO STATION FOR ADDITIONAL STATEMENTS OR WARMINGS
THAT MAY BE REQUIRED.
HAVILL
Special weather statement, Aug 1, 4:46 PM MDT, 2 hours 14 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
545 PM MDT FRI AUG 1 1986

  ...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST COLORADO...

AT 545 PM MDT SHOWERS AND THUNDERSTORMS CONTINUED OVER WESTERN
PUEBLO...NORTHERN LAS ANIMAS AND SOUTHERN BACA COUNTIES OF SOUTH-
EAST COLORADO. THE STRONGEST STORMS WERE 8 MILES EAST OF THATCHER
IN NORTHERN LAS ANIMAS COUNTY. THESE STORMS WERE MOVING TO THE
SOUTHEAST AS 20 MPH.

SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER SOUTHEAST COLORADO
THROUGH THE EVENING HOURS..SOME POSSIBLY SEVERE. HAIL..BRIEF HEAVY
RAIN..DANGEROUS LIGHTNING AND STRONG GUSTY WINDS ARE POSSIBLE WITH
THESE STORMS. PEOPLE NEAR THUNDERSTORMS SHOULD BE PREPARED TO SEEK
SHELTER IF THREATENING WEATHER APPROACHES.

STAY TUNED TO RADIO..TV OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
OR WARNINGS.
WOODS
Special weather statement, Aug 1, 5:41 PM MDT, 1 hour 19 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
540 PM MDT FRI AUG 1 1986

     ...VERY STRONG THUNDERSTORMS IN BENT COUNTY....

AT 540 PM MDT RADAR INDICATED VERY STRONG THUNDERSTORMS WITH HEAVY
RAIN OVER EASTERN BENT 5 MILES EAST AND SOUTHEAST OF THE TOWN OF
LAS ANIMAS. THIS STORM WAS MOVING TO THE SOUTHEAST AT 20 MILES AN
HOUR.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE OVER SOUTHEAST
COLORADO INTO THE EVENING HOURS. STORMS COULD BECOME SEVERE..PRODUCING
HAIL..BRIEF HEAVY RAIN..DANGEROUS LIGHTNING AND STRONG GUSTY WINDS.
PEOPLE NEAR THUNDERSTORMS SHOULD BE PREPARED TO SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

STAY TUNED TO RADIO..TV OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
OR WARNINGS.
WOODS
Special weather statement, Aug 1, 6:06 PM MDT, 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
605 PM MDT FRI AUG 1 1986

  ...VERY STRONG THUNDERSTORMS CONTINUE IN SOUTHEAST COLORADO...

AT 605 PM MDT VERY STRONG THUNDERSTORMS WITH HEAVY RAIN CONTINUED
OVER EASTERN BENT AND WESTERN PROWERS COUNTIES. THESE STROMS WERE
LOCATED 5 MILES AND 20 MILES SOUTHWEST OF LAMAR. MOVEMENT WAS TO
THE SOUTHEAST AT 20 MILES AN HOUR.

SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE OVER SOUTHEAST
COLORADO INTO THE NIGHT. STORMS COULD BECOME SEVERE..PRODUCING
HAIL..BRIEF HEAVY RAIN..DANGEROUS LIGHTNING AND STRONG GUSTY WINDS.
PEOPLE NEAR THUNDERSTORMS SHOULD BE PREPARED TO SEEK SHELTER IF
THREATENING WEATHER APPROACHES.

STAY TUNED TO R3ADIO..TV OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS
OR WARNINGS.
WOODS

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, 7:45 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
Aug 2, 4:50 PM MDTSevere Thunderstorm WarningPUBLas Animas60 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.