Alert archive / Colorado / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 5, NWS Pueblo, CO

April 11, 2012Baca County, Bent County, Las Animas County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Apr 11, 2012, 5:13 PM MDT for Baca County, Bent County, Las Animas County, Colorado. It was in force for 47 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 11, 2012, 5:13 PM MDT (23:13 UTC)
Expired: Apr 11, 2012, 6:00 PM MDT
In force: 47 min
Issued by: NWS Pueblo, CO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Baca County, CO, Bent County, CO, Las Animas County, CO

The radar

The Pueblo radar (KPUX), 139 km from the middle of the area, began a volume at 23:15 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
Apr 11, 5:31 PM MDT	FUNNEL CLOUD	4 Nw Kim, CO	CONDENSATION FUNNEL 3/4 WAY TO GROUND. HAS LIFTED.

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.

Issued	Product	Office	Lasted
Apr 11, 2:11 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.2 hours before the alert went out and 262 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: 9 J/kg
Mixed-layer CIN: -468 J/kg
Mixed-layer LCL: 724 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 48 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.

650 
WUUS55 KPUB 112313
SVRPUB
COC009-011-071-120000-
/O.NEW.KPUB.SV.W.0005.120411T2313Z-120412T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
513 PM MDT WED APR 11 2012

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN BACA COUNTY IN SOUTHEAST COLORADO...
  SOUTHEASTERN BENT COUNTY IN SOUTHEAST COLORADO...
  NORTHEASTERN LAS ANIMAS COUNTY IN SOUTHEAST COLORADO...

* UNTIL 600 PM MDT

* AT 511 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
  NORTH OF KIM...OR 43 MILES SOUTH OF LA JUNTA...AND MOVING EAST AT
  25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PRITCHETT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

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

LAT...LON 3782 10280 3719 10271 3724 10356 3734 10361
      3768 10334
TIME...MOT...LOC 2313Z 257DEG 22KT 3737 10338
WIND...HAIL 60MPH 1.00IN

$$

KAM

3 follow-up statements

995 
WWUS55 KPUB 112324
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
524 PM MDT WED APR 11 2012

COC009-011-071-120000-
/O.CON.KPUB.SV.W.0005.000000T0000Z-120412T0000Z/
BACA CO-BENT CO-LAS ANIMAS CO-
524 PM MDT WED APR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
LAS ANIMAS...SOUTH CENTRAL BENT AND NORTHWESTERN BACA COUNTIES UNTIL
600 PM MDT...

AT 520 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8
MILES NORTHWEST OF KIM...OR 44 MILES SOUTH OF LA JUNTA...MOVING EAST
AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
  KIM AND PRITCHETT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

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

LAT...LON 3736 10355 3768 10334 3782 10280 3719 10271
      3724 10356
TIME...MOT...LOC 2324Z 257DEG 21KT 3735 10341
WIND...HAIL 60MPH 1.50IN

$$

KAM

857 
WWUS55 KPUB 112345
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
545 PM MDT WED APR 11 2012

COC009-011-071-120000-
/O.CON.KPUB.SV.W.0005.000000T0000Z-120412T0000Z/
BACA CO-BENT CO-LAS ANIMAS CO-
545 PM MDT WED APR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
LAS ANIMAS...SOUTHEASTERN BENT AND NORTHWESTERN BACA COUNTIES UNTIL
600 PM MDT...

AT 542 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 9 MILES
NORTHEAST OF KIM...OR 36 MILES WEST OF SPRINGFIELD...MOVING EAST AT
25 MPH.

LOCATIONS IMPACTED INCLUDE...
  PRITCHETT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

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

LAT...LON 3736 10355 3748 10338 3777 10279 3719 10271
      3724 10356
TIME...MOT...LOC 2345Z 257DEG 21KT 3738 10326
WIND...HAIL 60MPH 1.00IN

$$

KAM

176 
WWUS55 KPUB 112357
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
557 PM MDT WED APR 11 2012

COC009-011-071-120008-
/O.EXP.KPUB.SV.W.0005.000000T0000Z-120412T0000Z/
BACA CO-BENT CO-LAS ANIMAS CO-
557 PM MDT WED APR 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LAS ANIMAS...
SOUTHEASTERN BENT AND NORTHWESTERN BACA COUNTIES IS BEING REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

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

LAT...LON 3736 10355 3748 10338 3777 10279 3719 10271
      3724 10356
TIME...MOT...LOC 2358Z 257DEG 21KT 3739 10317

$$

KAM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 2:31 PM MDT	Severe Thunderstorm Warning	PUB	Las Animas	37 min
Apr 11, 2:47 PM MDT	Fire Weather Watch	PUB	Alamosa, Conejos, Costilla, Rio Grande, Saguache	24 hr
Apr 11, 2:47 PM MDT	Red Flag Warning	PUB	Alamosa, Chaffee, Conejos, Costilla, Custer, Fremont and 6 more	29 hr
Apr 11, 3:23 PM MDT	Severe Thunderstorm Warning	PUB	Crowley, Otero, Pueblo	32 min
Apr 11, 3:50 PM MDT	Severe Thunderstorm Warning	PUB	Baca, Bent, Las Animas, Otero	40 min
Apr 11, 4:27 PM MDT	Severe Thunderstorm Warning	PUB	Baca, Bent, Las Animas, Otero	48 min
Apr 11, 5:01 PM MDT	Tornado Warning	PUB	Baca, Las Animas	44 min
Apr 11, 5:59 PM MDT	Severe Thunderstorm Warning	PUB	Baca, Las Animas	25 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2012 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.