Alert archive / Colorado / Tornado Warnings in 2001

Tornado Warning 13, NWS Denver/Boulder, CO

June 7, 2001Morgan County, Washington County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 7, 2001, 4:31 PM MDT for Morgan County, Washington County, Colorado. It was in force for 44 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: Jun 7, 2001, 4:31 PM MDT (22:31 UTC)
Expired: Jun 7, 2001, 5:15 PM MDT
In force: 44 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Morgan County, CO, Washington County, CO

The radar

The Denver radar (KFTG), 110 km from the middle of the area, began a volume at 22:32 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.

Issued	Product	Office	Lasted
Jun 7, 2:30 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.5 hours before the alert went out and 37 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: 499 J/kg
Mixed-layer CIN: -246 J/kg
Mixed-layer LCL: 1015 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

The text

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

000 
WFUS55 KBOU 072233
TORDEN

COC087-121-072315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
431 PM MDT THU JUN 7 2001

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL MORGAN COUNTY IN NORTHEAST COLORADO
  CENTRAL WASHINGTON COUNTY IN NORTHEAST COLORADO
  THIS INCLUDES THE CITY OF AKRON

* UNTIL 515 PM MDT

* AT 431 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO 6 MILES SOUTH OF 
MIDWAY...OR   ABOUT 10 MILES WEST OF AKRON...MOVING SLOWLY EAST.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...AKRON AND
MIDWAY.

DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY
TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A
TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO STRUCTURE
IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT.

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 TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT THURSDAY EVENING
FOR NORTHEASTERN COLORADO.

LAT...LON 4028 10351 4005 10352 4004 10313 4027 10314

KLEYLA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 4:15 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Washington	45 min
Jun 7, 4:32 PM MDT	Tornado Warning	BOU	Lincoln	43 min
Jun 7, 4:42 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	33 min
Jun 7, 5:03 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	42 min
Jun 7, 5:04 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	41 min
Jun 7, 5:15 PM MDT	Tornado Warning	BOU	Washington	30 min
Jun 7, 5:43 PM MDT	Tornado Warning	BOU	Washington	32 min
Jun 7, 5:57 PM MDT	Tornado Warning	BOU	Lincoln	33 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.