Alert archive / Colorado / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 3, NWS Pueblo, CO

April 11, 20124 counties in Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Apr 11, 2012, 3:50 PM MDT for 4 counties in Colorado. It was in force for 40 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 11, 2012, 3:50 PM MDT (21:50 UTC)
Expired: Apr 11, 2012, 4:30 PM MDT
In force: 40 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, Otero County, CO

The radar

The Pueblo radar (KPUX), 106 km from the middle of the area, began a volume at 21:53 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
Apr 11, 2:11 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.8 hours before the alert went out and 235 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.

368 
WUUS55 KPUB 112150
SVRPUB
COC009-011-071-089-112230-
/O.NEW.KPUB.SV.W.0003.120411T2150Z-120411T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
350 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...
  SOUTHWESTERN BENT COUNTY IN SOUTHEAST COLORADO...
  NORTHEASTERN LAS ANIMAS COUNTY IN SOUTHEAST COLORADO...
  SOUTHEASTERN OTERO COUNTY IN SOUTHEAST COLORADO...

* UNTIL 430 PM MDT

* AT 348 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 12
  MILES SOUTHWEST OF HIGBEE...OR 25 MILES SOUTH OF LA JUNTA...AND
  MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  HIGBEE.

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 3805 10329 3761 10291 3742 10356 3768 10374
TIME...MOT...LOC 2150Z 230DEG 28KT 3763 10354
WIND...HAIL 60MPH 1.00IN

$$

KAM

3 follow-up statements

708 
WWUS55 KPUB 112206
SVSPUB

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

COC009-011-071-089-112230-
/O.CON.KPUB.SV.W.0003.000000T0000Z-120411T2230Z/
BACA CO-BENT CO-OTERO CO-LAS ANIMAS CO-
406 PM MDT WED APR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
LAS ANIMAS...SOUTHEASTERN OTERO...SOUTHWESTERN BENT AND NORTHWESTERN
BACA COUNTIES UNTIL 430 PM MDT...

AT 402 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 6
MILES SOUTH OF HIGBEE...OR 21 MILES SOUTH OF LA JUNTA...MOVING 
NORTHEAST AT 30 MPH.  THIS WILL IMPACT MOTORIST ON COLORADO STATE 
HIGHWAY 109 BETWEEN MILE MARKERS 15 AND 35.

LOCATIONS IMPACTED INCLUDE...
  HIGBEE.

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 3805 10329 3761 10291 3742 10356 3768 10374
TIME...MOT...LOC 2205Z 230DEG 28KT 3770 10342
WIND...HAIL 60MPH 1.50IN

$$

KAM

225 
WWUS55 KPUB 112218
SVSPUB

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

COC009-011-071-089-112230-
/O.CON.KPUB.SV.W.0003.000000T0000Z-120411T2230Z/
BACA CO-BENT CO-OTERO CO-LAS ANIMAS CO-
418 PM MDT WED APR 11 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
LAS ANIMAS...SOUTHEASTERN OTERO...SOUTHWESTERN BENT AND NORTHWESTERN
BACA COUNTIES UNTIL 430 PM MDT...

AT 416 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 14 MILES
SOUTH OF HIGBEE...OR 29 MILES SOUTH OF LA JUNTA...MOVING NORTHEAST AT
25 MPH.  MOTORIST ON COLORADO HIGHWAY 109 BETWEEN MILE MARKERS 18 
AND 31 SHOULD BE PREPARED FOR STRONG CROSS WINDS AND HAIL TO THE 
SIZE OF QUARTERS.

LOCATIONS IMPACTED INCLUDE...
  HIGBEE.

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 3760 10354 3769 10360 3805 10329 3761 10291
      3742 10356
TIME...MOT...LOC 2217Z 247DEG 22KT 3758 10340
WIND...HAIL 60MPH 1.00IN

$$

KAM

023 
WWUS55 KPUB 112229
SVSPUB

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

COC009-011-071-089-112238-
/O.EXP.KPUB.SV.W.0003.000000T0000Z-120411T2230Z/
BACA CO-BENT CO-OTERO CO-LAS ANIMAS CO-
429 PM MDT WED APR 11 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LAS ANIMAS...
SOUTHEASTERN OTERO...SOUTHWESTERN 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 3760 10354 3769 10360 3805 10329 3761 10291
      3742 10356
TIME...MOT...LOC 2228Z 247DEG 22KT 3760 10332

$$

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, 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, 5:13 PM MDT	Severe Thunderstorm Warning	PUB	Baca, Bent, Las Animas	47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.