Alert archive / Colorado / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 19, NWS Pueblo, CO

May 20, 2001Las Animas County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at May 20, 2001, 7:24 PM MDT for Las Animas County, Colorado. It was in force for 66 min. 1 report 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: May 20, 2001, 7:24 PM MDT (01:24 UTC)
Expired: May 20, 2001, 8:30 PM MDT
In force: 66 min
Issued by: NWS Pueblo, CO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Las Animas County, CO

The radar

The Pueblo radar (KPUX), 113 km from the middle of the area, began a volume at 01:25 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

Time	Report	Where	Remark
May 20, 8:03 PM MDT	Thunderstorm Wind 51 M	Springfield, CO	An extremely strong cold front moved rapidly south across the southeast plains during the evening of the 20th. Temperatures were in the 70s to lower 80s before the front moved through and quickly dropped into the 40s and 50s. By late evening temperatures had

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, 1.4 hours before the alert went out and 275 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 600 m above ground
0-6 km bulk shear: 68 kt
0-1 km storm-relative helicity: -184 m²/s²
0-3 km storm-relative helicity: 510 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.

260 
WUUS55 KPUB 210125
SVRPUB
COC071-210230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
724 PM MDT SUN MAY 20 2001

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAS ANIMAS COUNTY IN SOUTHEAST COLORADO

* UNTIL 830 PM MDT

* AT 724 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THE
  SEVERE THUNDERSTORMS 17 MILES SOUTHEAST OF THATCHER...OR ABOUT 41
  MILES NORTHEAST OF TRINIDAD...MOVING SOUTHEAST AT 25 MPH.

* SOME LOCATIONS AFFECTED WILL BE...
  TRINCHERA AROUND 730 PM MDT
  TOBE AROUND 750 PM MDT
  VILLE GREEN AROUND 755 PM MDT
  TRINIDAD AROUND 800 PM MDT
  KIM AROUND 815 PM MDT

THUNDERSTORMS SHOULD STAY EAST OF TRINIDAD BUT STRONG WIND GUSTS CAN 
BE EXPECTED.

AT THIS TIME THE MOST LIKELY KIND OF SEVERE WEATHER IS HAIL AROUND
ONE INCH IN DIAMETER AND DAMAGING WINDS OVER 60 MPH. GET INDOORS
AND IN AN INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT CAN OFFER THE
BEST PROTECTION.

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 3761 10377 3762 10410 3776 10438 3742 10468
          3700 10466 3701 10310 3762 10308

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 6:05 PM MDT	Severe Thunderstorm Warning	PUB	Bent, Prowers	55 min
May 20, 6:16 PM MDT	Severe Thunderstorm Warning	PUB	Crowley	29 min
May 20, 6:26 PM MDT	Severe Thunderstorm Warning	PUB	Pueblo	64 min
May 20, 7:00 PM MDT	Severe Thunderstorm Warning	PUB	Bent	45 min
May 20, 7:30 PM MDT	Severe Thunderstorm Warning	PUB	Otero	45 min
May 20, 7:56 PM MDT	Severe Thunderstorm Warning	PUB	Baca	49 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2001 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.