Alert archive / Colorado / Tornado Warnings in 2001

Tornado Warning 22, NWS Denver/Boulder, CO

June 9, 2001Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 9, 2001, 4:01 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 39 min. 3 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 9, 2001, 4:01 PM MDT (22:01 UTC)
Expired: Jun 9, 2001, 4:40 PM MDT
In force: 39 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Elbert County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 85 km from the middle of the area, began a volume at 22:01 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
Jun 9, 4:06 PM MDT	Hail 0.88	Limon, CO
Jun 9, 4:18 PM MDT	Tornado F0	Limon, CO	A small tornado touched down but did no damage.
Jun 9, 4:35 PM MDT	Tornado F0	Hugo, CO	A large tornado, between 1/2 mile and 1 mile wide, touched down briefly. No damage however was reported.

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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 9, 3:00 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.0 hours before the alert went out and 92 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: 47 J/kg
Mixed-layer CIN: -424 J/kg
Mixed-layer LCL: 2745 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 72 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 
WFUS55 KBOU 092202
TORDEN

COC039-073-092240-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
401 PM MDT SAT JUN 9 2001

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL ELBERT COUNTY IN EAST CENTRAL COLORADO
  CENTRAL LINCOLN COUNTY IN EAST CENTRAL COLORADO
  THIS INCLUDES THE CITY OF LIMON

* UNTIL 440 PM MDT

* AT 400 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO 7 MILES NORTHWEST OF HUGO...OR
  ABOUT 8 MILES SOUTHEAST OF LIMON...MOVING SOUTH AT 10 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...GENOA...
HUGO...LIMON AND MATHESON.

LATEST REPORTS FROM THE LIMON AREA...INDICATED NO FUNNEL CLOUDS OR 
TORNADOES AT THIS TIME. HOWEVER...THIS STORM IS RE-INTENSIFYING AND 
COULD PRODUCE A TORNADO AT ANY TIME. 

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
SATURDAY EVENING FOR NORTHEASTERN COLORADO.

LAT...LON 3906 10402 3905 10336 3931 10339 3926 10402

SWE

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 8, 8:27 PM MDT	Severe Thunderstorm Warning	BOU	Douglas, Jefferson	33 min
Jun 9, 2:14 PM MDT	Tornado Warning	BOU	Lincoln	46 min
Jun 9, 2:31 PM MDT	Tornado Warning	BOU	Lincoln	44 min
Jun 9, 3:17 PM MDT	Tornado Warning	BOU	Lincoln	43 min
Jun 9, 4:39 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	36 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; radar from the NEXRAD Level II archive.