Alert archive / Colorado / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 85, NWS Pueblo, CO

June 21, 2004Custer County, Fremont County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jun 21, 2004, 1:00 PM MDT for Custer County, Fremont County, Colorado. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 21, 2004, 1:00 PM MDT (19:00 UTC)
Expired
Jun 21, 2004, 2:00 PM MDT
In force
60 min
Issued by
NWS Pueblo, CO
Area
Counties, with a storm outline in the text

Counties Custer County, CO, Fremont County, CO

The radar

The Pueblo radar (KPUX), 98 km from the middle of the area, began a volume at 19:02 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 nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.0 hours before the alert went out and 250 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 2004-06-21Temperature 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 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 2004-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -94 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
892 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-94 m²/s²
0-3 km storm-relative helicity
291 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 
WUUS55 KPUB 211900
SVRPUB
COC027-043-212000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
100 PM MDT MON JUN 21 2004

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FREMONT COUNTY IN CENTRAL COLORADO
  CUSTER COUNTY IN SOUTHEAST COLORADO

* UNTIL 200 PM MDT

* AT 1257 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL.  THIS
  STORM WAS LOCATED OVER EXTREME SOUTH CENTRAL FREMONT COUNTY...AND
  WAS MOVING SOUTHEAST AT 15 MPH.

* SOME LOCATIONS AFFECTED WILL BE...
  RURAL NORTHERN AND NORTHEASTERN CUSTER COUNTY THROUGH 200 PM MDT
  RURAL SOUTHERN FREMONT COUNTY THROUGH 200 PM MDT
  

IF POSSIBLE...WITHOUT RISKING YOUR SAFETY...PROTECT PROPERTY BEFORE
THE WEATHER HITS. GET IN A STURDY STRUCTURE AND AWAY FROM WINDOWS. AN
INTERIOR ROOM ON THE LOWEST FLOOR...OR A BASEMENT CAN OFFER THE BEST
PROTECTION.

LAT...LON 3841 10537 3821 10548 3808 10518 3825 10508
      3834 10523

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 6:05 PM MDTSevere Thunderstorm WarningPUBProwers85 min
Jun 20, 6:34 PM MDTTornado WarningPUBProwers56 min
Jun 20, 7:29 PM MDTTornado WarningPUBProwers31 min
Jun 20, 8:28 PM MDTFlash Flood WarningPUBProwers2 hr
Jun 21, 3:09 PM MDTSevere Thunderstorm WarningPUBLas Animas66 min
Jun 21, 3:11 PM MDTSevere Thunderstorm WarningPUBLas Animas64 min
Jun 21, 3:12 PM MDTSevere Thunderstorm WarningPUBLas Animas63 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2004Every severe thunderstorm warning in 2004

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.