Alert archive / Colorado / Tornado Warnings in 2014

Tornado Warning 31, NWS Denver/Boulder, CO

June 4, 2014Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 4, 2014, 8:32 PM MDT for Lincoln County, Colorado. It was in force for 28 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, 2014, 8:32 PM MDT (02:32 UTC)
Expired: Jun 4, 2014, 9:00 PM MDT
In force: 28 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

County Lincoln County, CO

The radar

The Denver radar (KFTG), 115 km from the middle of the area, began a volume at 02:32 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 4, 5:12 PM MDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 2.5 hours before the alert went out and 57 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: 168 J/kg
Mixed-layer CIN: -122 J/kg
Mixed-layer LCL: 3163 m above ground
0-6 km bulk shear: 75 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 262 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

875 
WFUS55 KBOU 050232
TORBOU
COC073-050300-
/O.NEW.KBOU.TO.W.0031.140605T0232Z-140605T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
832 PM MDT WED JUN 4 2014

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 900 PM MDT
    
* AT 831 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 10 MILES NORTH OF GENOA...OR 17 MILES NORTHEAST
  OF LIMON...MOVING EAST AT 30 MPH.

  HAZARD...TORNADO AND GOLF BALL SIZE HAIL. 

  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...
  ARRIBA.

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 3935 10352 3952 10344 3946 10315 3929 10315
      3921 10316
TIME...MOT...LOC 0231Z 289DEG 28KT 3942 10343 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

GIMMESTAD

2 follow-up statements

938 
WWUS55 KBOU 050249
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
849 PM MDT WED JUN 4 2014

COC073-050300-
/O.CON.KBOU.TO.W.0031.000000T0000Z-140605T0300Z/
LINCOLN CO-
849 PM MDT WED JUN 4 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
NORTHEASTERN LINCOLN COUNTY...
    
AT 849 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 9 MILES NORTHWEST OF ARRIBA...OR 17 MILES NORTHWEST OF
FLAGLER...MOVING EAST AT 25 MPH.

HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL. 

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. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHEASTERN LINCOLN COUNTY.

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 3939 10350 3950 10342 3946 10315 3926 10315
TIME...MOT...LOC 0249Z 286DEG 22KT 3941 10335 

TORNADO...RADAR INDICATED
HAIL...1.25IN

$$

GIMMESTAD

105 
WWUS55 KBOU 050302
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
902 PM MDT WED JUN 4 2014

COC073-050311-
/O.EXP.KBOU.TO.W.0031.000000T0000Z-140605T0300Z/
LINCOLN CO-
902 PM MDT WED JUN 4 2014

...THE TORNADO WARNING FOR NORTHEASTERN LINCOLN COUNTY HAS EXPIRED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM MDT
THURSDAY MORNING FOR NORTHEAST COLORADO.

LAT...LON 3939 10350 3950 10342 3946 10315 3926 10315
TIME...MOT...LOC 0259Z 289DEG 28KT 3941 10335 

$$

GIMMESTAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 6:00 PM MDT	Severe Thunderstorm Warning	BOU	Washington	45 min
Jun 4, 7:16 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Elbert	44 min
Jun 4, 7:38 PM MDT	Tornado Warning	BOU	Arapahoe, Lincoln, Washington	22 min
Jun 4, 7:58 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	32 min
Jun 4, 8:26 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	49 min
Jun 4, 8:41 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Douglas, Elbert	34 min
Jun 4, 9:15 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Elbert	45 min
Jun 4, 9:19 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	41 min
Jun 4, 9:24 PM MDT	Special Weather Statement	BOU	Douglas	51 min
Jun 4, 9:33 PM MDT	Areal Flood Advisory	BOU	Grand, Summit	4 days
Jun 4, 9:50 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	40 min
Jun 4, 10:11 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	34 min
Jun 4, 10:32 PM MDT	Tornado Warning Tornado observed	BOU	Lincoln	43 min
Jun 5, 2:47 PM MDT	Special Weather Statement	BOU	Arapahoe, Douglas	28 min
Jun 5, 2:58 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	47 min
Jun 5, 3:42 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	33 min
Jun 5, 4:13 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	47 min
Jun 5, 4:27 PM MDT	Special Weather Statement	BOU	Denver	33 min
Jun 5, 4:50 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	40 min
Jun 5, 4:55 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Denver	35 min
Jun 5, 5:00 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson	30 min
Jun 5, 5:24 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	51 min
Jun 5, 5:51 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Denver, Douglas	24 min

Nearby

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