Alert archive / Colorado / Tornado Warnings in 2014

Tornado Warning 75, NWS Denver/Boulder, CO

June 23, 2014Elbert County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 23, 2014, 4:40 PM MDT for Elbert County, Colorado. It was in force for 14 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 23, 2014, 4:40 PM MDT (22:40 UTC)
Expired
Jun 23, 2014, 4:54 PM MDT
In force
14 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Elbert County, CO

The radar

The Denver radar (KFTG), 54 km from the middle of the area, began a volume at 22:41 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.

IssuedProductOfficeLasted
Jun 23, 4:06 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.7 hours before the alert went out and 131 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, Denver, CO at 12:00Z on 2014-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2014-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 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
24 J/kg
Mixed-layer CIN
-282 J/kg
Mixed-layer LCL
930 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
109 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.

296 
WFUS55 KBOU 232240
TORBOU
COC039-232315-
/O.NEW.KBOU.TO.W.0075.140623T2240Z-140623T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
440 PM MDT MON JUN 23 2014

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 515 PM MDT
    
* AT 440 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED NEAR ELIZABETH...OR 34 MILES SOUTHEAST OF
  DENVER...MOVING NORTHEAST AT 15 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* LOCATIONS IMPACTED INCLUDE...
  ELIZABETH...KIOWA AND PONDEROSA PARK. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3922 10466 3936 10466 3943 10449 3927 10437
TIME...MOT...LOC 2240Z 239DEG 12KT 3931 10460 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

RJK
1 follow-up statement
125 
WWUS55 KBOU 232254
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
454 PM MDT MON JUN 23 2014

COC039-232304-
/O.CAN.KBOU.TO.W.0075.000000T0000Z-140623T2315Z/
ELBERT CO-
454 PM MDT MON JUN 23 2014

...THE TORNADO WARNING FOR WEST CENTRAL ELBERT COUNTY IS CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT
MONDAY AFTERNOON FOR NORTHEAST COLORADO.

LAT...LON 3922 10466 3936 10466 3943 10449 3927 10437
TIME...MOT...LOC 2251Z 239DEG 12KT 3933 10455 

$$

RJK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 6:03 PM MDTSevere Thunderstorm WarningBOUWashington27 min
Jun 22, 6:07 PM MDTSevere Thunderstorm WarningBOUAdams, Weld23 min
Jun 22, 6:16 PM MDTSevere Thunderstorm WarningBOUMorgan29 min
Jun 22, 6:40 PM MDTSevere Thunderstorm WarningBOUMorgan35 min
Jun 22, 7:07 PM MDTSevere Thunderstorm WarningBOUMorgan, Washington23 min
Jun 22, 7:08 PM MDTAreal Flood AdvisoryBOUMorgan97 min
Jun 22, 7:45 PM MDTFlash Flood WarningBOUMorgan3 hr
Jun 22, 8:12 PM MDTAreal Flood AdvisoryBOUWashington93 min
Jun 23, 3:40 PM MDTSevere Thunderstorm WarningBOUArapahoe, Elbert35 min
Jun 23, 4:11 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Washington34 min
Jun 23, 4:46 PM MDTSevere Thunderstorm WarningBOUDouglas, Jefferson29 min
Jun 23, 5:07 PM MDTSevere Thunderstorm WarningBOULarimer, Weld23 min
Jun 23, 5:31 PM MDTSevere Thunderstorm WarningBOUWeld29 min
Jun 23, 5:57 PM MDTSevere Thunderstorm WarningBOUWeld16 min
Jun 23, 5:58 PM MDTSevere Thunderstorm WarningBOUMorgan32 min

Nearby

Tornado Warnings in Colorado, 2014Every tornado warning in 2014Tornadoes in 2014

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.