Alert archive / Colorado / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 77, NWS Pueblo, CO

July 20, 2000Pueblo County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jul 20, 2000, 5:37 PM MDT for Pueblo County, Colorado. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jul 20, 2000, 5:37 PM MDT (23:37 UTC)
Expired
Jul 20, 2000, 6:30 PM MDT
In force
53 min
Issued by
NWS Pueblo, CO
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Pueblo County, CO

The radar

The Pueblo radar (KPUX), 83 km from the middle of the area, began a volume at 23:37 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 20, 1:45 PM MDTTornado WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.6 hours before the alert went out and 210 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 2000-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 409 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2000-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.19395878Sfc1 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
409 J/kg
Mixed-layer CIN
-401 J/kg
Mixed-layer LCL
1545 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WUUS55 KPUB 202336
SVRPUB
COC011-089-101-210030-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
537 PM MDT THU JUL 20 2000

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BENT COUNTY IN SOUTHEAST COLORADO...
  OTERO COUNTY IN SOUTHEAST COLORADO...
  THIS INCLUDES THE CITY OF LA JUNTA...
  SOUTHEASTERN PUEBLO COUNTY IN SOUTHEAST COLORADO...

* UNTIL 630 PM MDT

* AT 532 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A LINE 
  OF SEVERE STORMS FROM NORTHERN BENT COUNTY TO NEAR MANZANOLA IN    
  OTERO COUNTY TO SOUTHEAST PUEBLO COUNTY.

* SOME LOCATIONS AFFECTED...
  HASTY...LAS ANIMAS...ROCKY FORD...LA JUNTA...CHERAW... AND TIMPAS.
 
THESE ARE DANGEROUS THUNDERSTORMS! VERY LARGE...DAMAGING HAIL IS 
LIKELY. GET INDOORS AWAY FROM WINDOWS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN PUEBLO.

LAT...LON 3824 10345 3786 10446 3768 10393 3763 10272
          3826 10271

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 7:03 PM MDTSevere Thunderstorm WarningPUBEl Paso57 min
Jul 19, 8:25 PM MDTSevere Thunderstorm WarningPUBBaca60 min
Jul 20, 1:59 PM MDTTornado WarningPUBEl Paso61 min
Jul 20, 3:35 PM MDTSevere Thunderstorm WarningPUBPueblo55 min
Jul 20, 4:28 PM MDTSevere Thunderstorm WarningPUBPueblo62 min
Jul 20, 4:45 PM MDTSevere Thunderstorm WarningPUBLas Animas90 min
Jul 20, 5:11 PM MDTSevere Thunderstorm WarningPUBOtero94 min
Jul 20, 5:37 PM MDTSevere Thunderstorm WarningPUBBent53 min
Jul 20, 5:51 PM MDTSevere Thunderstorm WarningPUBLas Animas54 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2000Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.