Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 245, NWS Pueblo, CO

September 17, 1996El Paso County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Sep 17, 1996, 3:07 PM MDT for El Paso County, Colorado. It was in force for 58 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 17, 1996, 3:07 PM MDT (21:07 UTC)
Expired
Sep 17, 1996, 4:05 PM MDT
In force
58 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 51 km from the middle of the area, began a volume at 21:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Sep 17, 3:16 PM MDTHail 1Colorado Spgs, CO
Sep 17, 3:34 PM MDTHail 0.75Peyton, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Fort Carson/Butt, CO (KFCS), launched 12:00Z, 9.1 hours before the alert went out and 23 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 1996-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 16 joules per kilogram.LCLLFCEL10008507005003002001001 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 1996-09-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 370 square meters per square second.1939587897117136156175194214233253272292311330350Sfc1 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
16 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
1186 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
370 m²/s²
0-3 km storm-relative helicity
480 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPUB 172108
SVRPUB
COC041-172205-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
307 PM MDT TUE SEP 17 1996

* SEVERE THUNDERSTORM WARNING FOR
  EL PASO COUNTY      IN EAST CENTRAL COLORADO

* UNTIL 405 PM MDT
 
* SOME LOCATIONS AFFECTED
    FALCON BY 310
    BLACK FOREST BY 315
    PEYTON 320
    COLORADO SPRINGS BY 305

* A SEVERE THUNDERSTORM WILL MOVE ALONG AND NORTH OF US-24 BETWEEN
  COLORADO SPRINGS AND CALHAN BETWEEN 3PM AND 4 PM MDT PRODUCING HAIL
  3/4 INCH IN DIAMETER AND VERY HEAVY RAIN.

* AT 3 PM MDT RADAR SHOWED A SEVERE STORM 2 MILES NORTH OF FALCON
  MOVING NORTHEAST AT 20 MPH.

* LISTEN TO NOAA WEATHER RADIO FOR FOLLOW UP STA<TEMENTS AND
  WARNINGS FROM THE NATIONAL WEATHER SERVICE IN PUEBLO.

A FOLLOW UP STATEMENT WITH MORE DETAILS WILL BE OUT SHORTLY.

BF

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 17, 12:04 PM MDT, 3 hours 3 minutes before
COZ060>081-180600-

SIGNIFICANT WEATHER OUTLOOK FOR SOUTH CENTRAL AND SOUTHEAST COLORADO
NATIONAL WEATHER SERVICE PUEBLO CO
1203 PM MDT TUE SEP 17 1996

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES:

ALAMOSA      BACA        BENT          CHAFFEE        CONEJOS
COSTILLA     CROWLEY     CUSTER        EL PASO        FREMONT
HUERFANO     KIOWA       LAS ANIMAS    MINERAL        OTERO
PROWERS      PUEBLO      RIO GRANDE    SAGUACHE       TELLER

A SIGNIFICANT UPPER LEVEL TROUGH TO THE WEST WILL SEND A SERIES OF
WEATHER DISTURBANCES EMBEDDED IN THE TROUGH THROUGH MAINLY WESTERN AND
CENTRAL COLORADO.

IN THE UPPER LEVELS...COOLER AIR WILL BE MOVING OVER THE AREA AND WILL
HELP TO DESTABILIZE THE ATMOSPHERE.  SURFACE LOW PRESSURE TO THE EAST
OF THE ROCKY MOUNTAINS WILL HELP DRAW LOW LEVEL MOISTURE FROM THE GULF
OF MEXICO INTO THE FAR EASTERN PLAINS OF COLORADO.

THIS COMBINATION OF WEATHER FACTORS HAS THE POTENTIAL TO RESULT
IN ORGANIZED SEVERE THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL
AND DAMAGING WINDS OVER THE FAR EASTERN PLAINS.  THE AREAS MOST
AT RISK FROM SEVERE WEATHER THIS AFTERNOON AND EVENING INCLUDE
KIOWA...PROWERS...BENT AND BACA COUNTIES.

OVER THE SOUTHEAST MOUNTAINS AND PIKES PEAK REGION...
THUNDERSTORMS THAT DEVELOP THIS AFTERNOON AND EVENING HAVE THE
POTENTIAL TO PRODUCE SMALL HAIL.

TONIGHT...SOME LIGHT SNOW MAY FALL IN THE HIGH COUNTRY ABOVE
10,000 FEET...WITH NO SIGNIFICANT ACCUMULATION EXPECTED.

SPOTTER ACTIVATION MAY BE NEEDED IN THE EXTREME EASTERN PORTION OF
SOUTHEAST COLORADO LATE THIS AFTERNOON AND EARLY THIS EVENING.
Special weather statement, Sep 17, 2:29 PM MDT, 38 minutes before
COZ071-072-172130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
227 PM MDT TUE SEP 17 1996

...STRONG THUNDERSTORM OVER EL PASO COUNTY...

A STRONG THUNDERSTORM PRODUCING HAIL 1/4 INCH OR LESS IN DIAMETER AND
VERY HEAVY RAIN WAS OVER COLORADO SPRINGS. THIS STORM WILL MOVE
INTO BLACK FOREST BY 225 PM.

A WEATHER SPOTTER AT ACADEMY AND PIKES PEAK REPORTED SMALL HAIL AND
HEAVY RAINS AT 215 PM. THE STORM WAS MOVING NORTHEAST AT 15 MPH.

CASEY
Special weather statement, Sep 17, 3:02 PM MDT, 5 minutes before
COZ067-071-072-172205-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
300 PM MDT TUE SEP 17 1996

...STRONG THUNDERSTORMS WILL BRING HEAVY RAIN AND HAIL TO COLORADO
SPRINGS...

THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER COLORADO SPRINGS FOR THE
REST OF THE AFTERNOON AND EVENING. THESE STORMS WILL PRODUCE HEAVY RAIN
THAT MAY CAUSE SOME MINOR STREET AND LOW AREA FLOODING ALONG WITH HAIL
AND WIND GUSTS TO 40 MPH.

AT 250 PM THUNDERSTORMS WERE MOVING ACROSS EASTERN COLORADO SPRINGS AND
EXTENDED FROM THE BLACK FORECAST AND CALHAN AREAS TO FORT CARSON.
THE HEAVIEST RAIN WAS OVER EASTERN COLORADO SPRINGS ALONG ACADEMY
BLVD AND BETWEEN PETERSON AFB AND BLACK FOREST. ANOTHER
THUNDERSTORM WAS PRODUCING HEAVY RAIN IN THE FORT CARSON AREA. THESE
STORMS HAVE PRODUCED 1/2 INCH DIAMETER HAIL AND .25 TO .50 INCHES OF
RAIN IN 30 MINUTES. THE STORMS WERE MOVING NORTHEAST AT 20 MPH.

PLEASE USE EXTRA CAUTION WHEN DRIVING HOME THIS AF(TERNOON AND EVENING.
WATCH OUT FOR AREAS WHERE WATER MAY BE COVERING THE ROAD. THIS IS
ESPECIALLY LIKELY ALONG ACADEMY BLVD AND US-24.

FORTUNE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 17, 5:45 PM MDTSevere Thunderstorm WarningPUBEl Paso65 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1996Every severe thunderstorm warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.