Alert archive / Colorado / Tornado Warnings in 2008

Tornado Warning 48, NWS Denver/Boulder, CO

August 6, 2008Douglas County, Elbert County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Aug 6, 2008, 6:30 PM MDT for Douglas County, Elbert County, Colorado. It was in force for 30 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
Aug 6, 2008, 6:30 PM MDT (00:30 UTC)
Expired
Aug 6, 2008, 7:00 PM MDT
In force
30 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon

Counties Douglas County, CO, Elbert County, CO

The radar

The Denver radar (KFTG), 62 km from the middle of the area, began a volume at 00:32 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 nearest sounding before it

Grand Junction, CO (KGJT), launched 00:00Z, 0.5 hours before the alert went out and 334 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-pSkew-T log-p diagram, Grand Junction, CO at 00:00Z on 2008-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Grand Junction, CO at 00:00Z on 2008-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
68 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1760 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
83 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 070030
TORBOU
COC035-039-070100-
/O.NEW.KBOU.TO.W.0048.080807T0030Z-080807T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
630 PM MDT WED AUG 6 2008

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL ELBERT COUNTY IN EAST CENTRAL COLORADO
  SOUTHEASTERN DOUGLAS COUNTY IN NORTHEAST COLORADO

* UNTIL 700 PM MDT

* AT 630 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES SOUTH OF
  ELIZABETH...OR 30 MILES NORTH OF COLORADO SPRINGS. THIS STORM WAS
  MOVING SOUTH AT 10 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ELIZABETH
  AND ELBERT.

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 SAFE SHELTER IS AVAILABLE...LIE FLAT IN
THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR
HANDS.

LAT...LON 3914 10472 3938 10474 3937 10449 3913 10449
TIME...MOT...LOC 0030Z 096DEG 6KT 3927 10464

$$

RPK
2 follow-up statements
000 
WWUS55 KBOU 070040
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
640 PM MDT WED AUG 6 2008

COC035-039-070100-
/O.CON.KBOU.TO.W.0048.000000T0000Z-080807T0100Z/
ELBERT CO-DOUGLAS CO-
640 PM MDT WED AUG 6 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM MDT FOR
SOUTHEASTERN DOUGLAS AND WEST CENTRAL ELBERT COUNTIES...

AT 640 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
STORM WAS LOCATED 6 MILES WEST OF ELBERT...OR 27 MILES NORTH OF
COLORADO SPRINGS. THIS STORM WAS MOVING SOUTH AT 10 MPH.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
ELIZABETH AND ELBERT.

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 3914 10472 3938 10474 3937 10449 3913 10449
TIME...MOT...LOC 0040Z 096DEG 6KT 3923 10465

$$

RPK
000 
WWUS55 KBOU 070100
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
700 PM MDT WED AUG 6 2008

COC035-039-070110-
/O.EXP.KBOU.TO.W.0048.000000T0000Z-080807T0100Z/
ELBERT CO-DOUGLAS CO-
700 PM MDT WED AUG 6 2008

...THE TORNADO WARNING FOR SOUTHEASTERN DOUGLAS AND WEST CENTRAL
ELBERT COUNTIES HAS EXPIRED...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO
LONGER EXPECTED TO PRODUCE SEVERE WEATHER.

LAT...LON 3914 10472 3938 10474 3937 10449 3913 10449
TIME...MOT...LOC 0100Z 096DEG 6KT 3923 10469

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 6:00 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert45 min
Aug 6, 6:18 PM MDTAreal Flood AdvisoryBOUWeld87 min
Aug 6, 6:22 PM MDTAreal Flood AdvisoryBOUDouglas, Elbert83 min
Aug 6, 6:26 PM MDTAreal Flood AdvisoryBOUArapahoe, Elbert94 min
Aug 6, 6:39 PM MDTTornado WarningBOUAdams, Broomfield, Denver, Weld36 min
Aug 6, 6:47 PM MDTAreal Flood AdvisoryBOUBroomfield, Weld88 min
Aug 6, 6:59 PM MDTTornado WarningBOUBoulder, Larimer, Weld31 min
Aug 6, 7:20 PM MDTAreal Flood AdvisoryBOUAdams, Arapahoe, Boulder, Broomfield, Denver, Jefferson and 1 more85 min
Aug 6, 7:32 PM MDTFlash Flood WarningBOUWeld3 hr
Aug 6, 7:36 PM MDTAreal Flood AdvisoryBOUAdams, Arapahoe, Denver, Elbert, Lincoln, Morgan and 2 more3 hr
Aug 6, 8:56 PM MDTAreal Flood AdvisoryBOUMorgan, Washington109 min
Aug 6, 9:50 PM MDTFlash Flood WarningBOUMorgan, Washington85 min
Aug 6, 10:30 PM MDTAreal Flood AdvisoryBOUWashington90 min
Aug 6, 10:48 PM MDTAreal Flood AdvisoryBOUWeld87 min
Aug 7, 11:37 AM MDTFlash Flood WatchBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 7 more8 hr

Nearby

Tornado Warnings in Colorado, 2008Every tornado warning in 2008Tornadoes in 2008

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.