Alert archive / Colorado / Tornado Warnings in 2016

Tornado Warning 25, NWS Denver/Boulder, CO

July 28, 2016Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jul 28, 2016, 7:24 PM MDT for Lincoln County, Colorado. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 28, 2016, 7:24 PM MDT (01:24 UTC)
Expired: Jul 28, 2016, 8:00 PM MDT
In force: 36 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.5 in

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 44 km from the middle of the area, began a volume at 01:24 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.

What was reported inside it

Time	Report	Where	Remark
Jul 28, 7:41 PM MDT	HAIL 1	21 N Ordway, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 1.4 hours before the alert went out and 149 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: 1611 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1861 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 8.4

Open this sounding in Storm Lab

The text

As transmitted.

738 
WFUS55 KBOU 290124
TORBOU
COC073-290200-
/O.NEW.KBOU.TO.W.0025.160729T0124Z-160729T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
724 PM MDT THU JUL 28 2016

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 800 PM MDT
    
* AT 724 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 5 MILES SOUTH OF FORDER...OR 43 MILES NORTH OF
  LA JUNTA... MOVING SOUTH AT 30 MPH.

  HAZARD...TORNADO AND PING PONG 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. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  SOUTH CENTRAL 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 YOU ARE OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3852 10378 3865 10380 3867 10354 3852 10357
TIME...MOT...LOC 0124Z 347DEG 28KT 3860 10369 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

BARJENBRUCH

2 follow-up statements

818 
WWUS55 KBOU 290143
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
743 PM MDT THU JUL 28 2016

COC073-290200-
/O.CON.KBOU.TO.W.0025.000000T0000Z-160729T0200Z/
LINCOLN CO-
743 PM MDT THU JUL 28 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM MDT FOR SOUTH
CENTRAL LINCOLN COUNTY...
    
AT 743 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 10 MILES SOUTH OF FORDER...OR 38 MILES NORTH OF LA
JUNTA... MOVING SOUTH AT 20 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. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTH CENTRAL 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 YOU ARE OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3852 10378 3865 10380 3867 10354 3852 10357
TIME...MOT...LOC 0143Z 354DEG 19KT 3853 10369 

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

$$

BARJENBRUCH

568 
WWUS55 KBOU 290157
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
757 PM MDT THU JUL 28 2016

COC073-290206-
/O.EXP.KBOU.TO.W.0025.000000T0000Z-160729T0200Z/
LINCOLN CO-
757 PM MDT THU JUL 28 2016

...THE TORNADO WARNING FOR SOUTH CENTRAL LINCOLN COUNTY WILL EXPIRE
AT 800 PM MDT...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3852 10378 3865 10380 3867 10354 3852 10357
TIME...MOT...LOC 0156Z 347DEG 28KT 3853 10369 

$$

BARJENBRUCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 6:00 PM MDT	Special Weather Statement	BOU	Weld	30 min
Jul 28, 6:49 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	41 min
Jul 28, 7:03 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	42 min
Jul 28, 8:26 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	34 min
Jul 28, 8:51 PM MDT	Special Weather Statement	BOU	Jefferson	24 min
Jul 28, 9:06 PM MDT	Severe Thunderstorm Warning	BOU	Jefferson	24 min
Jul 28, 9:23 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	52 min
Jul 28, 9:30 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Denver, Douglas, Jefferson	30 min
Jul 28, 10:06 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	39 min
Jul 29, 12:10 AM MDT	Special Weather Statement	BOU	Elbert	65 min
Jul 29, 4:35 PM MDT	Severe Thunderstorm Warning	BOU	Weld	40 min
Jul 29, 5:12 PM MDT	Severe Thunderstorm Warning	BOU	Larimer, Weld	48 min
Jul 29, 5:17 PM MDT	Special Weather Statement	BOU	Elbert	28 min
Jul 29, 5:57 PM MDT	Severe Thunderstorm Warning	BOU	Weld	63 min

Nearby

Tornado Warnings in Colorado, 2016 Every tornado warning in 2016 Tornadoes in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.