Alert archive / Colorado / Tornado Warnings in 2012

Tornado Warning 3, NWS Pueblo, CO

April 27, 2012Baca County, Colorado

NWS Pueblo, CO issued this tornado warning at Apr 27, 2012, 12:46 AM MDT for Baca County, Colorado. It was in force for 26 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
Apr 27, 2012, 12:46 AM MDT (06:46 UTC)
Expired
Apr 27, 2012, 1:12 AM MDT
In force
26 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon

County Baca County, CO

The radar

The Pueblo radar (KPUX), 155 km from the middle of the area, began a volume at 06:49 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
Apr 26, 9:00 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 6.8 hours before the alert went out and 268 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 00:00Z on 2012-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 95 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2012-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.19395878Sfc1 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
95 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
2538 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
175 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.

238 
WFUS55 KPUB 270646
TORPUB
COC009-270730-
/O.NEW.KPUB.TO.W.0003.120427T0646Z-120427T0730Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
1246 AM MDT FRI APR 27 2012

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN BACA COUNTY IN SOUTHEAST COLORADO...

* UNTIL 130 AM MDT

* AT 1244 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 5 MILES WEST OF PRITCHETT...OR 19 MILES WEST OF
  SPRINGFIELD...AND MOVING NORTH AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PRITCHETT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA. GO TO A BASEMENT OR SMALL INTERIOR
ROOM ON THE LOWEST FLOOR!

TAKE COVER NOW. MOVE TO 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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT FRIDAY
MORNING FOR SOUTHEAST COLORADO.

LAT...LON 3762 10304 3755 10266 3726 10286 3729 10308
TIME...MOT...LOC 0646Z 192DEG 41KT 3737 10295

$$
3 follow-up statements
498 
WWUS55 KPUB 270653
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1253 AM MDT FRI APR 27 2012

COC009-270730-
/O.CON.KPUB.TO.W.0003.000000T0000Z-120427T0730Z/
BACA CO-
1253 AM MDT FRI APR 27 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BACA COUNTY
UNTIL 130 AM MDT...

AT 1249 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 5 MILES NORTHWEST OF PRITCHETT...OR 18 MILES WEST
OF SPRINGFIELD...MOVING NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHWESTERN BACA COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO 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.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT FRIDAY
MORNING FOR SOUTHEAST COLORADO.

LAT...LON 3762 10304 3755 10266 3735 10285 3739 10304
TIME...MOT...LOC 0653Z 192DEG 41KT 3745 10293

$$
753 
WWUS55 KPUB 270659
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
1259 AM MDT FRI APR 27 2012

COC009-270730-
/O.CON.KPUB.TO.W.0003.000000T0000Z-120427T0730Z/
BACA CO-
1259 AM MDT FRI APR 27 2012

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN BACA COUNTY
UNTIL 130 AM MDT...

AT 1254 AM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTH OF PRITCHETT...OR 16 MILES WEST OF
SPRINGFIELD...MOVING NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHWESTERN BACA COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO 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.

TORNADOES ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT FRIDAY
MORNING FOR SOUTHEAST COLORADO.

LAT...LON 3740 10281 3744 10301 3762 10304 3755 10266
TIME...MOT...LOC 0659Z 197DEG 41KT 3751 10287

$$
324 
WWUS55 KPUB 270712
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
112 AM MDT FRI APR 27 2012

COC009-270722-
/O.CAN.KPUB.TO.W.0003.000000T0000Z-120427T0730Z/
BACA CO-
112 AM MDT FRI APR 27 2012

...THE TORNADO WARNING FOR NORTHWESTERN BACA COUNTY IS CANCELLED...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN
EFFECT FOR THE AREA...HOWEVER LARGE HAIL AND GUSTY WINDS ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM MDT FRIDAY
MORNING FOR SOUTHEAST COLORADO.

LAT...LON 3740 10281 3744 10301 3762 10304 3755 10266
TIME...MOT...LOC 0712Z 199DEG 39KT 3764 10281

$$

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 6:04 PM MDTSevere Thunderstorm WarningPUBBaca41 min
Apr 26, 6:36 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers24 min
Apr 26, 6:56 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers49 min
Apr 26, 7:30 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers30 min
Apr 26, 10:46 PM MDTSevere Thunderstorm WarningPUBBaca22 min
Apr 27, 12:22 AM MDTSevere Thunderstorm WarningPUBBaca, Bent, Las Animas, Otero53 min
Apr 27, 1:09 AM MDTSevere Thunderstorm WarningPUBBaca, Bent, Prowers51 min
Apr 27, 1:25 AM MDTTornado WarningPUBBent, Prowers50 min
Apr 27, 1:44 AM MDTTornado WarningPUBBent, Kiowa, Prowers19 min
Apr 27, 1:55 AM MDTTornado WarningPUBBent, Prowers50 min
Apr 27, 2:21 AM MDTTornado WarningPUBKiowa, Prowers39 min
Apr 27, 2:43 AM MDTTornado WarningPUBKiowa, Prowers32 min
Apr 27, 2:56 AM MDTTornado WarningPUBKiowa13 min

Nearby

Tornado Warnings in Colorado, 2012Every tornado warning in 2012Tornadoes in 2012

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.