Alert archive / Colorado / Tornado Warnings in 2015

Tornado Warning 9, NWS Denver/Boulder, CO

May 9, 2015Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 9, 2015, 4:17 PM MDT for Lincoln County, Colorado. It was in force for 17 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, 4:17 PM MDT (22:17 UTC)
Expired: May 9, 2015, 4:34 PM MDT
In force: 17 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 68 km from the middle of the area, began a volume at 22:20 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, 10.3 hours before the alert went out and 126 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.

328 
WFUS55 KBOU 092217
TORBOU
COC073-092245-
/O.NEW.KBOU.TO.W.0009.150509T2217Z-150509T2245Z/

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

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

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

* UNTIL 445 PM MDT
    
* AT 416 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER KARVAL...OR 37 MILES SOUTH OF LIMON... 
  MOVING NORTH AT 25 MPH. A SPOTTER REPORTED A TORNADO 8 MILES SOUTH 
  OF KARVAL. 

  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...
  PUNKIN CENTER AND KARVAL. 

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 3865 10338 3866 10363 3886 10373 3894 10336
TIME...MOT...LOC 2216Z 187DEG 21KT 3873 10352 

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

$$

ENTREKIN

2 follow-up statements

143 
WWUS55 KBOU 092225
SVSBOU

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

COC073-092245-
/O.CON.KBOU.TO.W.0009.000000T0000Z-150509T2245Z/
LINCOLN CO-
425 PM MDT SAT MAY 9 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM MDT FOR SOUTH
CENTRAL LINCOLN COUNTY...
    
AT 424 PM MDT...A CONFIRMED TORNADO WAS LOCATED 6 MILES NORTH OF
KARVAL...OR 31 MILES SOUTH OF LIMON...MOVING NORTH AT 25 MPH.

HAZARD...DAMAGING TORNADO. 

SOURCE...WEATHER SPOTTERS CONFIRMED A TORNADO AT 415 PM AT 1 MILE 
NORTH OF KARVAL.  

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...
PUNKIN CENTER AND KARVAL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A TORNADO IS ON THE GROUND. 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 3865 10338 3866 10363 3886 10373 3894 10336
TIME...MOT...LOC 2224Z 187DEG 21KT 3882 10357 

TORNADO...OBSERVED
HAIL...<.75IN

$$

ENTREKIN

780 
WWUS55 KBOU 092234
SVSBOU

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

COC073-092242-
/O.CAN.KBOU.TO.W.0009.000000T0000Z-150509T2245Z/
LINCOLN CO-
434 PM MDT SAT MAY 9 2015

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

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

LAT...LON 3865 10338 3866 10363 3886 10373 3894 10336
TIME...MOT...LOC 2230Z 187DEG 21KT 3886 10357 

$$

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, 4:37 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	23 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.