Alert archive / Colorado / Tornado Warnings in 2001

Tornado Warning 2, NWS Denver/Boulder, CO

May 28, 2001Adams County, Arapahoe County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 28, 2001, 5:41 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 34 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: May 28, 2001, 5:41 PM MDT (23:41 UTC)
Expired: May 28, 2001, 6:15 PM MDT
In force: 34 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Adams County, CO, Arapahoe County, CO

What was reported inside it

Time	Report	Where	Remark
May 28, 5:50 PM MDT	Hail 1	Watkins, CO
May 28, 6:00 PM MDT	Hail 1	Bennett, CO

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 12:00Z, 11.7 hours before the alert went out and 98 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: 1725 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 42 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 282342
TORDEN
COC001-005-290015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
541 PM MDT MON MAY 28 2001

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL ADAMS COUNTY IN NORTHEAST COLORADO
  NORTH CENTRAL ARAPAHOE COUNTY IN NORTHEAST COLORADO

* UNTIL 615 PM MDT

* AT 541 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO 3 MILES NORTH OF MANILA
  VILLAGE...OR ABOUT 25 MILES EAST OF DENVER...MOVING NORTHEAST AT 15
  MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
BENNETT...BYERS...MANILA VILLAGE AND STRASBURG.

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.

LAT...LON 3999 10456 3969 10456 3969 10409 3999 10410

KLEYLA

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 3:53 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson, Park	37 min
May 28, 4:20 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Denver, Jefferson	40 min
May 28, 4:20 PM MDT	Severe Thunderstorm Warning	BOU	Boulder, Weld	40 min
May 28, 4:58 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver, Jefferson	32 min
May 28, 4:58 PM MDT	Severe Thunderstorm Warning	BOU	Weld	32 min
May 28, 5:27 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Weld	33 min
May 28, 5:27 PM MDT	Severe Thunderstorm Warning	BOU	Denver	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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.