Alert archive / Colorado / Tornado Warnings in 2015

Tornado Warning 10, NWS Denver/Boulder, CO

May 9, 2015Elbert County, Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 9, 2015, 4:37 PM MDT for Elbert County, Lincoln County, Colorado. It was in force for 23 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: May 9, 2015, 4:37 PM MDT (22:37 UTC)
Expired: May 9, 2015, 5:00 PM MDT
In force: 23 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Elbert County, CO, Lincoln County, CO

The radar

The Pueblo radar (KPUX), 73 km from the middle of the area, began a volume at 22:40 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
May 9, 11:55 AM MDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.6 hours before the alert went out and 105 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: 53 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 660 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

835 
WFUS55 KBOU 092237
TORBOU
COC039-073-092300-
/O.NEW.KBOU.TO.W.0010.150509T2237Z-150509T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
437 PM MDT SAT MAY 9 2015

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 500 PM MDT
    
* AT 436 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 4 MILES NORTH OF PUNKIN CENTER...OR 24 MILES 
  SOUTH OF LIMON...MOVING NORTHWEST AT 40 MPH. LAW ENFORCEMENT 
  REPORTED A TORNADO NEAR PUNKIN CENTER. 

  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. 

* THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  SOUTHEASTERN ELBERT AND CENTRAL LINCOLN COUNTIES.

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 IN A MOBILE
HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3894 10355 3884 10373 3909 10401 3918 10371
TIME...MOT...LOC 2236Z 144DEG 34KT 3891 10373 

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

$$

ENTREKIN

2 follow-up statements

746 
WWUS55 KBOU 092253
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
453 PM MDT SAT MAY 9 2015

COC039-073-092300-
/O.CON.KBOU.TO.W.0010.000000T0000Z-150509T2300Z/
ELBERT CO-LINCOLN CO-
453 PM MDT SAT MAY 9 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM MDT FOR
SOUTHEASTERN ELBERT AND CENTRAL LINCOLN COUNTIES...
    
AT 451 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED 13 MILES SOUTH OF LIMON...MOVING NORTH AT 40 MPH. A 
SPOTTER REPORTED A TORNADO 9 MILES WEST AND SOUTHWEST OF LIMON. 

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. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHEASTERN ELBERT AND CENTRAL LINCOLN COUNTIES.

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 3894 10355 3884 10373 3909 10401 3918 10371
TIME...MOT...LOC 2251Z 164DEG 34KT 3908 10371 

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

$$

ENTREKIN

701 
WWUS55 KBOU 092301
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
501 PM MDT SAT MAY 9 2015

COC039-073-092310-
/O.EXP.KBOU.TO.W.0010.000000T0000Z-150509T2300Z/
ELBERT CO-LINCOLN CO-
501 PM MDT SAT MAY 9 2015

...THE TORNADO WARNING FOR SOUTHEASTERN ELBERT AND CENTRAL LINCOLN
COUNTIES HAS EXPIRED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS DISSIPATED. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM MDT FOR EAST CENTRAL
COLORADO.

LAT...LON 3894 10355 3884 10373 3909 10401 3918 10371
TIME...MOT...LOC 2259Z 144DEG 34KT 3908 10371 

$$

ENTREKIN

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 9:24 PM MDT	Areal Flood Warning	BOU	Boulder, Broomfield, Larimer, Weld	12 hr
May 8, 10:02 PM MDT	River Flood Warning	BOU	Weld	5 days
May 8, 10:02 PM MDT	River Flood Warning	BOU	Logan, Morgan, Washington	6 days
May 8, 11:19 PM MDT	Flash Flood Warning	BOU	Elbert	3 hr
May 9, 3:07 AM MDT	Flash Flood Warning	BOU	Morgan	3 hr
May 9, 3:26 AM MDT	Severe Thunderstorm Warning	BOU	Logan	34 min
May 9, 4:49 AM MDT	Flash Flood Warning	BOU	Logan	3 hr
May 9, 5:10 AM MDT	Flash Flood Watch	BOU	Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more	15 hr
May 9, 5:12 AM MDT	Areal Flood Advisory	BOU	Douglas, Elbert	3 hr
May 9, 5:15 AM MDT	Winter Storm Warning	BOU	Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 14 more	25 hr
May 9, 5:51 AM MDT	Areal Flood Advisory	BOU	Arapahoe	3 hr
May 9, 6:53 AM MDT	Areal Flood Advisory	BOU	Adams, Arapahoe, Elbert, Morgan, Weld	3 hr
May 9, 7:51 AM MDT	Flash Flood Warning	BOU	Adams, Arapahoe, Morgan	3 hr
May 9, 8:25 AM MDT	Flash Flood Warning	BOU	Morgan	3 hr
May 9, 8:50 AM MDT	Areal Flood Warning	BOU	Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 3 more	12 hr
May 9, 8:56 AM MDT	Areal Flood Advisory	BOU	Elbert, Lincoln	3 hr
May 9, 9:09 AM MDT	Winter Storm Watch	BOU	Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 11 more	4 hr
May 9, 9:21 AM MDT	Areal Flood Advisory	BOU	Logan	3 hr
May 9, 10:52 AM MDT	Areal Flood Warning	BOU	Adams, Arapahoe, Elbert, Logan, Morgan, Washington and 1 more	9 hr
May 9, 11:43 AM MDT	Areal Flood Advisory	BOU	Elbert, Lincoln	3 hr
May 9, 12:23 PM MDT	River Flood Warning	BOU	Morgan	5 days
May 9, 12:23 PM MDT	River Flood Warning	BOU	Sedgwick	8 days
May 9, 12:23 PM MDT	River Flood Warning	BOU	Weld	7 days
May 9, 12:34 PM MDT	Areal Flood Warning	BOU	Weld	9 hr
May 9, 1:07 PM MDT	Winter Weather Advisory	BOU	Park, Phillips, Sedgwick	20 hr
May 9, 4:10 PM MDT	Tornado Warning	BOU	Elbert	35 min
May 9, 4:17 PM MDT	Tornado Warning	BOU	Lincoln	17 min
May 9, 4:41 PM MDT	Tornado Warning	BOU	Elbert	34 min
May 9, 5:36 PM MDT	Special Weather Statement	BOU	Lincoln	54 min

Nearby

Tornado Warnings in Colorado, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.