Alert archive / Colorado / Tornado Warnings in 2007

Tornado Warning 49, NWS Denver/Boulder, CO

July 3, 2007Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jul 3, 2007, 4:47 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 43 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: Jul 3, 2007, 4:47 PM MDT (22:47 UTC)
Expired: Jul 3, 2007, 5:30 PM MDT
In force: 43 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

Counties Elbert County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 92 km from the middle of the area, began a volume at 22:50 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
Jul 3, 2:25 PM MDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.8 hours before the alert went out and 336 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: 554 J/kg
Mixed-layer CIN: -647 J/kg
Mixed-layer LCL: 1266 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: -116 m²/s²
0-3 km storm-relative helicity: -65 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 032248
TORBOU
COC039-073-032330-
/O.NEW.KBOU.TO.W.0049.070703T2247Z-070703T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
447 PM MDT TUE JUL 3 2007

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 530 PM MDT

* AT 447 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 18 MILES
  WEST OF HUGO...OR ABOUT 12 MILES SOUTHWEST OF LIMON. THIS STORM WAS
  NEARLY STATIONARY.  A NEARLY STATIONARY BOUNDARY EXTENDING FROM
  NEAR ARRIBA TO ABOUT 5 MILES SOUTH OF LIMON...AND THEN TO 7 MILES
  SOUTHEAST OF MATHESON WILL BE THE FOCUS FOR POSSIBLE ADDITIONAL
  TORNADO DEVELOPMENT THROUGH 530 PM.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HUGO AND
  ARRIBA.

THE TORNADOES ARE EXPECTED TO GENERALLY BE SHORT LIVED AND WEAK...
HOWEVER...THEY ARE STILL CAPABLE OF PRODUCING DAMAGING AND BODILY 
INJURY.

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.


LAT...LON 3909 10315 3931 10316 3924 10376 3913 10405
      3899 10405 3910 10364

$$
BARJENBRUCH

1 follow-up statement

000 
WWUS55 KBOU 032328
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
527 PM MDT TUE JUL 3 2007

COC039-073-032337-
/O.EXP.KBOU.TO.W.0049.000000T0000Z-070703T2330Z/
LINCOLN CO-ELBERT CO-
527 PM MDT TUE JUL 3 2007

...THE TORNADO WARNING FOR EAST CENTRAL ELBERT AND CENTRAL LINCOLN
COUNTIES EXPIRED AT 530 PM MDT...

LAT...LON 3909 10315 3931 10316 3924 10376 3913 10405
      3899 10405 3910 10364

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 2:53 PM MDT	Severe Thunderstorm Warning	BOU	Larimer	37 min
Jul 3, 3:25 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson	35 min
Jul 3, 4:06 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	39 min
Jul 3, 4:19 PM MDT	Severe Thunderstorm Warning	BOU	Larimer	41 min
Jul 3, 4:43 PM MDT	Severe Thunderstorm Warning	BOU	Boulder, Gilpin	47 min
Jul 3, 4:55 PM MDT	Severe Thunderstorm Warning	BOU	Larimer	35 min
Jul 3, 4:57 PM MDT	Severe Thunderstorm Warning	BOU	Gilpin, Jefferson	48 min
Jul 3, 5:19 PM MDT	Severe Thunderstorm Warning	BOU	Clear Creek	43 min
Jul 3, 5:23 PM MDT	Severe Thunderstorm Warning	BOU	Boulder	23 min

Nearby

Tornado Warnings in Colorado, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.