Alert archive / Colorado / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 77, NWS Pueblo, CO

July 7, 2011Huerfano County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jul 7, 2011, 2:49 PM MDT for Huerfano County, Colorado. It was in force for 56 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
Jul 7, 2011, 2:49 PM MDT (20:49 UTC)
Expired
Jul 7, 2011, 3:45 PM MDT
In force
56 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Huerfano County, CO

The radar

The Pueblo radar (KPUX), 114 km from the middle of the area, began a volume at 20:50 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 nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.8 hours before the alert went out and 290 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 2011-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 371 joules per kilogram.LCLLFCEL10008507005003002001001 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, Denver, CO at 12:00Z on 2011-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.193958Sfc1 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
371 J/kg
Mixed-layer CIN
-105 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

642 
WUUS55 KPUB 072049
SVRPUB
COC055-072145-
/O.NEW.KPUB.SV.W.0077.110707T2049Z-110707T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
249 PM MDT THU JUL 7 2011

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL HUERFANO COUNTY IN SOUTHEAST COLORADO...

* UNTIL 345 PM MDT

* AT 246 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 7 MILES
  SOUTH OF FARISITA...OR 45 MILES NORTHWEST OF TRINIDAD...AND MOVING 
  EAST SOUTHEAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  LA VETA.

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 3767 10479 3745 10498 3763 10522 3778 10508
TIME...MOT...LOC 2049Z 309DEG 5KT 3765 10506
WIND...HAIL 60MPH 1.00IN

$$
3 follow-up statements
991 
WWUS55 KPUB 072108
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
308 PM MDT THU JUL 7 2011

COC055-072145-
/O.CON.KPUB.SV.W.0077.000000T0000Z-110707T2145Z/
HUERFANO CO-
308 PM MDT THU JUL 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
HUERFANO COUNTY UNTIL 345 PM MDT...

AT 304 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 8 MILES
EAST OF LA VETA PASS...OR 44 MILES NORTHWEST OF TRINIDAD...MOVING 
EAST SOUTHEAST AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
  LA VETA.

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 3763 10521 3776 10504 3767 10479 3745 10498
TIME...MOT...LOC 2108Z 309DEG 5KT 3763 10505
WIND...HAIL 60MPH 1.00IN

$$
023 
WWUS55 KPUB 072127
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
327 PM MDT THU JUL 7 2011

COC055-072145-
/O.CON.KPUB.SV.W.0077.000000T0000Z-110707T2145Z/
HUERFANO CO-
327 PM MDT THU JUL 7 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL
HUERFANO COUNTY UNTIL 345 PM MDT...

AT 322 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 8 MILES
SOUTHEAST OF FARISITA...OR 43 MILES NORTHWEST OF TRINIDAD...MOVING 
EAST SOUTHEAST AT 10 MPH.

LOCATIONS IMPACTED INCLUDE...
  TRAVELERS ALONG HIGHWAY 160 AND WEST OF INTERSTATE 25 BETWEEN LA   
  VETA AND WEST OF WALSENBURG.

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 3763 10521 3776 10504 3767 10479 3745 10498
TIME...MOT...LOC 2124Z 309DEG 5KT 3766 10497
WIND...HAIL 60MPH 1.00IN

$$
355 
WWUS55 KPUB 072137
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
337 PM MDT THU JUL 7 2011

COC055-072148-
/O.EXP.KPUB.SV.W.0077.000000T0000Z-110707T2145Z/
HUERFANO CO-
337 PM MDT THU JUL 7 2011

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HUERFANO COUNTY WILL
EXPIRE AT 345 PM MDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.

LAT...LON 3763 10521 3776 10504 3767 10479 3745 10498
TIME...MOT...LOC 2138Z 309DEG 5KT 3765 10495

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:49 PM MDTSevere Thunderstorm WarningPUBBent, Prowers56 min
Jul 6, 9:43 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers37 min
Jul 7, 2:16 PM MDTSevere Thunderstorm WarningPUBEl Paso, Teller34 min
Jul 7, 2:17 PM MDTSevere Thunderstorm WarningPUBHuerfano, Las Animas25 min
Jul 7, 2:29 PM MDTFlash Flood WarningPUBLas Animas89 min
Jul 7, 5:13 PM MDTSevere Thunderstorm WarningPUBPueblo62 min
Jul 7, 5:23 PM MDTAreal Flood AdvisoryPUBLas Animas, Otero102 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2011Every severe thunderstorm warning in 2011

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.