Alert archive / Colorado / Tornado Warnings in 2003

Tornado Warning 6, NWS Denver/Boulder, CO

April 28, 2003Morgan County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Apr 28, 2003, 6:09 PM MDT for Morgan County, Colorado. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 28, 2003, 6:09 PM MDT (00:09 UTC)
Expired: Apr 28, 2003, 6:40 PM MDT
In force: 31 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

County Morgan County, CO

The radar

The Denver radar (KFTG), 73 km from the middle of the area, began a volume at 00:08 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 nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.2 hours before the alert went out and 82 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: 1013 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1510 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 127 m²/s²
0-3 km storm-relative helicity: 185 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

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

849 
WFUS55 KBOU 290009
TORBOU
COC087-290045-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
607 PM MDT MON APR 28 2003

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL MORGAN COUNTY IN NORTHEAST COLORADO

* UNTIL 640 PM MDT

* AT 606 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO NEAR WIGGINS...OR ABOUT 14
  MILES WEST OF FORT MORGAN...MOVING NORTHEAST AT 15 MPH.

* THIS SEVERE THUNDERSTORM MAY ALSO PRODUCE DAMAGING HAIL UP TO ONE  
  INCH IN DIAMETER. 

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
GOODRICH...JACKSON RESERVOIR...LOG LANE VILLAGE...ORCHARD...WELDONA
AND WIGGINS.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

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.

LAT...LON 4029 10415 4018 10408 4018 10377 4046 10388 4042 10407

BAKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:00 PM MDT	Severe Thunderstorm Warning	BOU	Adams	60 min
Apr 28, 8:00 PM MDT	Tornado Warning	BOU	Adams, Morgan	45 min
Apr 28, 8:18 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver	57 min
Apr 28, 8:49 PM MDT	Tornado Warning	BOU	Adams	41 min
Apr 28, 9:28 PM MDT	Severe Thunderstorm Warning	BOU	Washington	57 min
Apr 28, 10:11 PM MDT	Severe Thunderstorm Warning	BOU	Adams	19 min
Apr 28, 10:29 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Washington	56 min
Apr 29, 3:48 PM MDT	Severe Thunderstorm Warning	BOU	Adams	42 min
Apr 29, 4:15 PM MDT	Severe Thunderstorm Warning	BOU	Douglas	45 min
Apr 29, 4:28 PM MDT	Severe Thunderstorm Warning	BOU	Adams	32 min
Apr 29, 4:39 PM MDT	Severe Thunderstorm Warning	BOU	Weld	66 min
Apr 29, 4:48 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	57 min
Apr 29, 4:55 PM MDT	Tornado Warning	BOU	Lincoln	50 min
Apr 29, 4:58 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	62 min
Apr 29, 5:04 PM MDT	Severe Thunderstorm Warning	BOU	Adams	56 min
Apr 29, 5:11 PM MDT	Severe Thunderstorm Warning	BOU	Weld	64 min
Apr 29, 5:18 PM MDT	Severe Thunderstorm Warning	BOU	Weld	57 min
Apr 29, 5:38 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson	37 min
Apr 29, 5:58 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Denver, Douglas	47 min
Apr 29, 5:59 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	61 min

Nearby

Tornado Warnings in Colorado, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.