Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 75, NWS Pueblo, CO

July 7, 1996Crowley County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jul 7, 1996, 5:55 PM MDT for Crowley County, Colorado. It was in force for 25 min. 1 report 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
Jul 7, 1996, 5:55 PM MDT (23:55 UTC)
Expired
Jul 7, 1996, 6:20 PM MDT
In force
25 min
Issued by
NWS Pueblo, CO
Area
Whole counties

County Crowley County, CO

The radar

The Pueblo radar (KPUX), 38 km from the middle of the area, began a volume at 23:58 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
Jul 7, 6:00 PM MDTHail 0.75Crowley, 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

Denver, CO (KDNR), launched 12:00Z, 11.9 hours before the alert went out and 178 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 1996-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Denver, CO at 12:00Z on 1996-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2098 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
22 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 072355
SVRPUB
COC025-080030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
555 PM MDT SUN JUL 7 1996

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHERN CROWLEY COUNTY      IN SOUTHEAST COLORADO

* UNTIL 620 PM MDT
 
* SOME LOCATIONS AFFECTED
    CROWLEY BY 555 PM
    OLNEY SPRINGS BY 600 PM

* AT 554 PM RADAR SHOWED A SEVERE STORM 3 MILES NORTHWEST OF CROWLEY
  MOVING SOUTHEAST AT 20 MPH.

A TORNADO W~ATCH IS IN EFFECT.  SEVERE STORMS CAN PRODUCE TORNADOES.

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

TM

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, Jul 7, 1:34 PM MDT, 4 hours 21 minutes before
COZ074-075-072020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
134 PM MDT SUN JUL 7 1996

...VERY STRONG THUNDERSTORM SOUTH OF WALSENBURG...

AT 130 PM...A VERY STRONG THUNDERSTORM...CENTERED ABOUT 9 MILES SOUTH OF
WALSENBURG WAS SHOWING A SLOW EASTWARD MOVEMENT AT LESS THAN 10 MPH.
THE STORM WILL MOVE OVER OPEN COUNTRY WEST OF I-25 THROUGH 200 PM.

THE STORM WAS PRODUCING VERY HEAVY RAIN...AND POSSIBLY SOME HAIL 1/2
INCH DIAMETER OR SMALLER AND GUSTY WINDS TO 45 MPH.

IF YOU ARE CAUGHT OUTSIDE DURING A LIGHTNING STORM...FIND A LOW SPOT.
SHELTER YOURSELF UNDER SHORTER TREES. AVOID ISOLATED...TALL TREES. STAY
AWAY FROM WATER...POWER POLES AND METAL OBJECTS... SUCH AS A FENCE ROW
OR GOLF CLUBS. IF IN A GROUP...STAY APART. IF SOMEONE IS
STRUCK...OTHERS WILL BE ABLE TO HELP THE VICTIM.

TLM/SC
Special weather statement, Jul 7, 2:01 PM MDT, 3 hours 54 minutes before
COZ072-072050-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
201 PM MDT SUN JUL 7 1996

...STRONG THUNDERSTORMS ALONG THE PALMER DIVIDE IN NORTHERN EL PASO
COUNTY...

THUNDERSTORMS ARE GOING TO BE MOVING EAST AT 10 MPH ACROSS NORTHERN
PARTS OF EL PASO COUNTY...NEARING RAMAH BY 230 PM MDT.  THESE
THUNDERSTORMS WILL APPROACH THE BLACK FOREST BY 210 PM
MDT...CROSSING HIGHWAY 24 BY 220 PM.

EXPECT FREQUENT DANGEROUS LIGHTNING...HAIL NEARING 1/2 INCH IN
DIAMETER...AND LOCALLY HEAVY RAIN WITH THESE STORMS AS THEY MOVE EAST.

THESE THUNDERSTORMS CAN BRING DEADLY LIGHTNING...AND SOME WILL
PRODUCE 1/2 INCH DIAMETER OR SMALLER HAIL...GUSTY WINDS AROUND 40
MPH AND VERY HEAVY RAINFALL.

SC
Special weather statement, Jul 7, 3:48 PM MDT, 2 hours 7 minutes before
COZ073-072250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
348 PM MDT SUN JUL 7 1996

...A STRONG THUNDERSTORM DEVELOPING JUST SOUTHWEST OF PUEBLO...

AT 345 PM MDT A STRONG THUNDERSTORM WAS LOCATED 6 MILES SOUTHWEST
OF DOWNTOWN PUEBLO...MOVING EAST AT 15 MPH.

THIS STORM WILL CROSS INTERSTATE 25 JUST SOUTH OF PUEBLO BY 355
PM...THEN MOVE ACROSS OPEN COUNTRY.

IF YOU PLAN TO BE OUTDOORS...CHECK THE LATEST WEATHER
INFORMATION AND KEEP AN EYE TO THE SKY. DEADLY LIGHTNING CAN
OCCUR WITH ALL THUNDERSTORMS. IF A THUNDERSTORM APPROACHES... GET
INDOORS OR IN A VEHICLE. LIGHTNING CAN STRIKE SEVERAL MILES AWAY
FROM THE STORM...WHERE IT IS NOT RAINING AND WHERE YOU MAY BE.

SC
Special weather statement, Jul 7, 4:16 PM MDT, 1 hour 39 minutes before
COZ073-072305-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
416 PM MDT SUN JUL 7 1996

...THUNDERSTORMS MOVING ACROSS NORTHERN PUEBLO COUNTY...
...TORNADO WATCH UNTIL 10 PM MDT...

YOU CAN EXPECT THUNDERSTORMS TO MOVE EAST OF INTERSTATE 25 ACROSS
OPEN COUNTRY OF SOUTHEAST PUEBLO COUNTY THROUGH 5 PM MDT.  HAIL
UNDER 1/2 INCH IN DIAMETER...STRONG GUSTY WINDS TO 45 MPH...AND
VERY HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS.

AT 4d15 PM THIS STORM WAS LOCATED 6 MILES SOUTHEAST OF DOWNTOWN PUEBLO...
AND EAST OF I-25.
Special weather statement, Jul 7, 5:15 PM MDT, 40 minutes before
COZ073-076-077-079-081-080020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
515 PM MDT SUN JUL 7 1996

...STRONG THUNDERSTORMS OVER SOUTHEAST COLORADO...

WIDELY SCATTERED STRONG STORMS WERE OVER NORTHERN AND EASTERN PUEBLO
COUNTY AND WILL MOVE INTO AND THROUGH CROWLEY AND OTERO COUNTIES
THROUGH 6OO PM.

ANOTHER STORM WAS IN SOUTHEAST OTERO COUNTY...ABOUT 10 MILES SOUTHEAST
OF LA JUNTA...AND STILL ANOTHER STORM WAS ABOUT 10 MILES NORTHWEST OF
SPRINGFIELD IN BACA COUNTY.  THESE TWO STORMS WILL MOVE ACROSS OPEN
COUNTRY THROUGH 600 PM.

ALL THESE STORMS WILL PRODUCE BRIEF HEAVY RAIN...WHICH WILL CAUSE WATER
TO POND IN LOW SPOTS AND ON ROADWAYS...HAIL UNDER 1/2 INCH IN
DIAMETER...FREQUENT DANGEROUS LIGHTNING AND WIND GUSTS TO 40 MPH.

TLM
Special weather statement, Jul 7, 5:45 PM MDT, 10 minutes before
COZ076-080050-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
545 PM MDT SUN JUL 7 1996

...VERY STRONG THUNDERSTORM IN CROWLEY COUNTY...

A VERY STRONG STORM 5 MILES NORTHWEST OF CROWLEYb WILL MOVE SOUTHEAST
AT 15 MPH...AND BE IN OLNEY SPRINGS AND CROWLEY BY 550 PM.  THE STORM
WILL PRODUCE HEAVY RAIN...FREQUENT DANGEROUS LIGHTNING...HAIL JUST
UNDER 3/4 INCH IN DIAMETER AND GUSTY WINDS TO 55 MPH.

TLM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 2:07 PM MDTSevere Thunderstorm WarningPUBEl Paso63 min
Jul 7, 2:49 PM MDTTornado WarningPUBEl Paso31 min
Jul 7, 3:19 PM MDTSevere Thunderstorm WarningPUBEl Paso61 min
Jul 7, 4:10 PM MDTSevere Thunderstorm WarningPUBEl Paso50 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.