Alert archive / Colorado / Tornado Warnings in 2010

Tornado Warning 3, NWS Pueblo, CO

April 21, 2010Las Animas County, Colorado

NWS Pueblo, CO issued this tornado warning at Apr 21, 2010, 5:09 PM MDT for Las Animas County, Colorado. It was in force for 49 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
Apr 21, 2010, 5:09 PM MDT (23:09 UTC)
Expired
Apr 21, 2010, 5:58 PM MDT
In force
49 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon

County Las Animas County, CO

The radar

The Pueblo radar (KPUX), 112 km from the middle of the area, began a volume at 23:11 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

TimeReportWhereRemark
Apr 21, 5:09 PM MDTTORNADO12 Se Thatcher, CODELAYED REPORT OF TORNADO FROM APPROXIMATELY 509 PM MDT TO 515 PM MDT. NO KNOWN DAMAGE.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 21, 2:49 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.2 hours before the alert went out and 276 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 12:00Z on 2010-04-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2010-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
617 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
32 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.

375 
WFUS55 KPUB 212309
TORPUB
COC071-220015-
/O.NEW.KPUB.TO.W.0003.100421T2309Z-100422T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
509 PM MDT WED APR 21 2010

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LAS ANIMAS COUNTY IN SOUTHEAST COLORADO...

* UNTIL 615 PM MDT

* AT 507 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 9 MILES SOUTH OF THATCHER...OR 33 MILES NORTHEAST
  OF TRINIDAD...AND MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  THATCHER.

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 900 PM MDT
WEDNESDAY EVENING FOR SOUTHEAST COLORADO.

LAT...LON 3763 10401 3759 10372 3732 10387 3731 10399
      3733 10408 3742 10417
TIME...MOT...LOC 2310Z 216DEG 17KT 3745 10400

$$
3 follow-up statements
720 
WWUS55 KPUB 212323
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
523 PM MDT WED APR 21 2010

COC071-220015-
/O.CON.KPUB.TO.W.0003.000000T0000Z-100422T0015Z/
LAS ANIMAS CO-
523 PM MDT WED APR 21 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL LAS ANIMAS COUNTY
UNTIL 615 PM MDT...

AT 521 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 6 MILES SOUTHEAST OF THATCHER...OR 37 MILES
NORTHEAST OF TRINIDAD...MOVING NORTHEAST AT 20 MPH.

IN ADDITION...THIS STORM IS LIKELY PRODUCING HAIL TO TENNIS BALL 
SIZE. 

LOCATIONS IMPACTED INCLUDE...
  THATCHER.

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.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
WEDNESDAY EVENING FOR SOUTHEAST COLORADO.

LAT...LON 3763 10401 3759 10372 3732 10387 3731 10399
      3733 10408 3742 10417
TIME...MOT...LOC 2323Z 216DEG 17KT 3750 10395

$$
956 
WWUS55 KPUB 212336
SVSPUB

SSEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
536 PM MDT WED APR 21 2010

COC071-220015-
/O.CON.KPUB.TO.W.0003.000000T0000Z-100422T0015Z/
LAS ANIMAS CO-
536 PM MDT WED APR 21 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL LAS ANIMAS COUNTY
UNTIL 615 PM MDT...

AT 534 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED 9 MILES SOUTHEAST OF THATCHER...OR 37 MILES
SOUTHWEST OF LA JUNTA...MOVING NORTHEAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN LAS ANIMAS 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.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
WEDNESDAY EVENING FOR SOUTHEAST COLORADO.

LAT...LON 3763 10401 3759 10372 3732 10387 3731 10399
      3733 10408 3742 10417
TIME...MOT...LOC 2336Z 216DEG 17KT 3752 10388

$$
785 
WWUS55 KPUB 212358
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
558 PM MDT WED APR 21 2010

COC071-220007-
/O.CAN.KPUB.TO.W.0003.000000T0000Z-100422T0015Z/
LAS ANIMAS CO-
558 PM MDT WED APR 21 2010

...THE TORNADO WARNING FOR CENTRAL LAS ANIMAS COUNTY IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA...HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL
POSSIBLE WITH THIS THUNDERSTORM.

REMEMBER...SEVERE THUNDERSTORM WARNINGS REMAIN IN EFFECT FOR CENTRAL 
AND NORTH CENTRAL PORTIONS OF LAS ANIMAS COUNTY UNTIL 645 PM MDT. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
WEDNESDAY EVENING FOR SOUTHEAST COLORADO.

LAT...LON 3763 10401 3759 10372 3732 10387 3731 10399
      3733 10408 3742 10417
TIME...MOT...LOC 2357Z 216DEG 17KT 3760 10381

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 3:57 AM MDTDense Fog AdvisoryPUBEl Paso3 hr
Apr 21, 2:55 PM MDTSevere Thunderstorm WarningPUBHuerfano, Las Animas, Pueblo65 min
Apr 21, 4:06 PM MDTSevere Thunderstorm WarningPUBHuerfano, Las Animas54 min
Apr 21, 4:10 PM MDTSevere Thunderstorm WarningPUBLas Animas65 min
Apr 21, 4:34 PM MDTSevere Thunderstorm WarningPUBLas Animas56 min
Apr 21, 4:41 PM MDTTornado WarningPUBLas Animas40 min
Apr 21, 5:18 PM MDTSevere Thunderstorm WarningPUBLas Animas, Otero, Pueblo22 min
Apr 21, 5:28 PM MDTSevere Thunderstorm WarningPUBLas Animas, Otero, Pueblo45 min
Apr 21, 5:52 PM MDTSevere Thunderstorm WarningPUBLas Animas53 min

Nearby

Tornado Warnings in Colorado, 2010Every tornado warning in 2010Tornadoes in 2010

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.