Alert archive / Colorado / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 12, NWS Pueblo, CO

April 26, 2012Baca County, Prowers County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Apr 26, 2012, 4:26 PM MDT for Baca County, Prowers County, Colorado. It was in force for 17 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 26, 2012, 4:26 PM MDT (22:26 UTC)
Expired
Apr 26, 2012, 4:43 PM MDT
In force
17 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Baca County, CO, Prowers County, CO

The radar

The Pueblo radar (KPUX), 167 km from the middle of the area, began a volume at 22:27 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 26, 4:29 PM MDTHAIL 110 N Springfield, CO

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 26, 2:42 PM MDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.4 hours before the alert went out and 233 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, Dodge City, at 12:00Z on 2012-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2012-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 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
2951 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
52 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.

400 
WUUS55 KPUB 262226
SVRPUB
COC009-099-262315-
/O.NEW.KPUB.SV.W.0012.120426T2226Z-120426T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
426 PM MDT THU APR 26 2012

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL BACA COUNTY IN SOUTHEAST COLORADO...
  SOUTH CENTRAL PROWERS COUNTY IN SOUTHEAST COLORADO...

* UNTIL 515 PM MDT

* AT 422 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 11
  MILES NORTH OF SPRINGFIELD...AND MOVING NORTHEAST AT 20 MPH.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF NORTHERN BACA AND SOUTHERN PROWERS COUNTIES.
  HIGHWAY 287 AROUND 10 MILES NORTH OF SPRINGFIELD.

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.

&&

LAT...LON 3785 10252 3770 10230 3745 10261 3756 10278
TIME...MOT...LOC 2225Z 220DEG 18KT 3758 10262
WIND...HAIL 60MPH 1.00IN

$$
2 follow-up statements
116 
WWUS55 KPUB 262234
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
434 PM MDT THU APR 26 2012

COC009-099-262315-
/O.CON.KPUB.SV.W.0012.000000T0000Z-120426T2315Z/
BACA CO-PROWERS CO-
434 PM MDT THU APR 26 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
PROWERS AND NORTH CENTRAL BACA COUNTIES UNTIL 515 PM MDT...

AT 431 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
WEST OF TWO BUTTES...OR 13 MILES NORTH OF SPRINGFIELD...MOVING
NORTHEAST AT 20 MPH.

IN ADDITION...AT 429 PM QUARTER SIZE HAIL WAS REPORTED IN 10 MILES 
NORTH OF SPRINGFIELD WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF EXTREME NORTHERN BACA AND SOUTHERN PROWERS 
  COUNTIES EAST OF HIGHWAY 287 AND NORTH OF HIGHWAY 160.

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

LAT...LON 3759 10272 3785 10252 3770 10230 3749 10257
TIME...MOT...LOC 2233Z 220DEG 18KT 3760 10255
WIND...HAIL 60MPH 1.00IN

$$
268 
WWUS55 KPUB 262243
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
443 PM MDT THU APR 26 2012

COC009-099-262253-
/O.CAN.KPUB.SV.W.0012.000000T0000Z-120426T2315Z/
BACA CO-PROWERS CO-
443 PM MDT THU APR 26 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PROWERS AND
NORTH CENTRAL BACA COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA...HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS THUNDERSTORM. 
ANOTHER SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR NORTHEAST 
BACA AND SOUTHEAST PROWERS COUNTY UNTIL 530 PM. 

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

LAT...LON 3759 10272 3785 10252 3770 10230 3749 10257
TIME...MOT...LOC 2243Z 220DEG 18KT 3764 10251

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 26, 3:10 PM MDTSevere Thunderstorm WarningPUBBent, Kiowa21 min
Apr 26, 3:13 PM MDTSevere Thunderstorm WarningPUBBent, Prowers29 min
Apr 26, 3:16 PM MDTSevere Thunderstorm WarningPUBBent, Kiowa20 min
Apr 26, 3:31 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers44 min
Apr 26, 4:42 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers48 min
Apr 26, 5:28 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers32 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2012Every 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.