Alert archive / Colorado / Tornado Warnings in 2003

Tornado Warning 25, NWS Denver/Boulder, CO

June 4, 2003Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 4, 2003, 4:32 AM MDT for Lincoln County, Colorado. It was in force for 58 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: Jun 4, 2003, 4:32 AM MDT (10:32 UTC)
Expired: Jun 4, 2003, 5:30 AM MDT
In force: 58 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 77 km from the middle of the area, began a volume at 10:35 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, 10.5 hours before the alert went out and 120 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: 436 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 1368 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 341 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

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

583 
WFUS55 KBOU 041032
TORBOU
COC073-041130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
430 AM MDT WED JUN 4 2003

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN LINCOLN COUNTY IN EAST CENTRAL COLORADO

* UNTIL 530 AM MDT

* AT 429 AM MDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE   
  THUNDERSTORM WITH A POSSIBLE TORNADO 10 MILES SOUTHWEST OF         
  BOYERO...OR ABOUT 34 MILES SOUTHEAST OF LIMON...MOVING SOUTHEAST   
  AT 25 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...BOYERO.

HAIL UP TO ONE INCH IN DIAMETER HAS BEEN RECENTLY OBSERVED WITH THIS 
SEVERE THUNDERSTORM.

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.

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 3889 10355 3854 10342 3854 10318 3896 10317
          3895 10355

$$
BAKER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 7:57 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe	33 min
Jun 3, 8:13 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	47 min
Jun 3, 8:27 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	63 min
Jun 4, 3:30 AM MDT	Tornado Warning	BOU	Elbert, Lincoln	60 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.