Alert archive / Colorado / Tornado Warnings in 2001

Tornado Warning 19, NWS Pueblo, CO

June 20, 2001El Paso County, Colorado

NWS Pueblo, CO issued this tornado warning at Jun 20, 2001, 8:49 PM MDT for El Paso County, Colorado. It was in force for 56 min. 2 reports came from 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, with what was reported inside it.

The facts

Issued: Jun 20, 2001, 8:49 PM MDT (02:49 UTC)
Expired: Jun 20, 2001, 9:45 PM MDT
In force: 56 min
Issued by: NWS Pueblo, CO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County El Paso County, CO

What was reported inside it

Time	Report	Where	Remark
Jun 20, 9:18 PM MDT	Hail 1.5	Ramah, CO
Jun 20, 9:18 PM MDT	Hail 4	Calhan, CO	A very severe thunderstorm dumped giant hail from the Elbert-El Paso county line into Calhan. The hail swath was around 2 miles wide. Damage estimates were still preliminary at the time of submission.

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 00:00Z, 2.8 hours before the alert went out and 121 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 484 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1925 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -40 m²/s²
0-3 km storm-relative helicity: 207 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

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

000 
WFUS55 KPUB 210252
TORPUB

COC041-210345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
849 PM MDT WED JUN 20 2001

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN EL PASO COUNTY IN EAST CENTRAL COLORADO

* UNTIL 945 PM MDT

* AT 849 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A
  RAPIDLY ROTATING THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 17
  MILES NORTH OF CALHAN...OR ABOUT 34 MILES WEST OF LIMON...MOVING
  SOUTH AT 25 MPH.

* SOME LOCATIONS AFFECTED WILL BE...
  CALHAN AROUND 920 PM MDT...

THIS STORM HAS A LONG HISTORY OF PRODUCING DESTRUCTIVE HAIL. HAIL UP 
TO 2 TO 3 INCHES IN DIAMETERS IS LIKELY.

MOBILE HOMES SHOULD BE EVACUATED.

LAT...LON 3937 10425 3931 10447 3871 10427 3879 10393

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:15 PM MDT	Severe Thunderstorm Warning	PUB	Huerfano, Pueblo	90 min
Jun 20, 9:11 PM MDT	Severe Thunderstorm Warning	PUB	Fremont, Pueblo	64 min
Jun 20, 9:43 PM MDT	Severe Thunderstorm Warning	PUB	El Paso	92 min
Jun 21, 1:02 AM MDT	Severe Thunderstorm Warning	PUB	Pueblo	58 min
Jun 21, 1:18 AM MDT	Severe Thunderstorm Warning	PUB	Huerfano	57 min
Jun 21, 5:36 PM MDT	Severe Thunderstorm Warning	PUB	Las Animas	54 min

Nearby

Tornado Warnings in Colorado, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.