Alert archive / Colorado / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 88, NWS Pueblo, CO

July 30, 2012El Paso County, Colorado

NWS Pueblo, CO issued this severe thunderstorm warning at Jul 30, 2012, 2:55 PM MDT for El Paso County, Colorado. It was in force for 33 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 30, 2012, 2:55 PM MDT (20:55 UTC)
Expired
Jul 30, 2012, 3:28 PM MDT
In force
33 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 56 km from the middle of the area, began a volume at 20:58 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, 8.9 hours before the alert went out and 162 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 2012-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 36 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 2012-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
36 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
2058 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
4 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.

208 
WUUS55 KPUB 302055
SVRPUB
COC041-302200-
/O.NEW.KPUB.SV.W.0088.120730T2055Z-120730T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
255 PM MDT MON JUL 30 2012

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL EL PASO COUNTY IN EAST CENTRAL COLORADO...

* UNTIL 400 PM MDT

* AT 249 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
  STORM WAS LOCATED IN COLORADO SPRINGS...AND MOVING EAST AT 15
  MPH.

  AT 243 PM HAIL UP TO THE SIZE OF NICKELS WAS REPORTED IN NEAR THE
  BROADMOOR WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  COLORADO SPRINGS...SECURITY...PETERSON AFB...FALCON...SCHRIEVER AFB
  AND ELLICOTT.

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 3897 10437 3873 10432 3872 10490 3888 10494
TIME...MOT...LOC 2054Z 260DEG 14KT 3881 10480
WIND...HAIL <50MPH 1.00IN

$$
2 follow-up statements
424 
WWUS55 KPUB 302110
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
310 PM MDT MON JUL 30 2012

COC041-302200-
/O.CON.KPUB.SV.W.0088.000000T0000Z-120730T2200Z/
EL PASO CO-
310 PM MDT MON JUL 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL EL
PASO COUNTY UNTIL 400 PM MDT...

AT 307 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL.  THIS
STORM WAS LOCATED NEAR CENTRAL COLORADO SPRINGS...MOVING EAST AT 15
MPH.

LOCATIONS IMPACTED INCLUDE...
  COLORADO SPRINGS...PETERSON AFB...FALCON...SCHRIEVER AFB AND
  ELLICOTT.

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 3897 10437 3873 10432 3872 10490 3888 10494
TIME...MOT...LOC 2109Z 260DEG 14KT 3882 10473
WIND...HAIL <50MPH 1.00IN

$$
550 
WWUS55 KPUB 302128
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
328 PM MDT MON JUL 30 2012

COC041-302138-
/O.CAN.KPUB.SV.W.0088.000000T0000Z-120730T2200Z/
EL PASO CO-
328 PM MDT MON JUL 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL EL PASO COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3897 10437 3873 10432 3872 10490 3888 10494
TIME...MOT...LOC 2128Z 260DEG 14KT 3883 10464

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 2:45 PM MDTAreal Flood AdvisoryPUBEl Paso105 min
Jul 30, 5:18 PM MDTFlash Flood WarningPUBEl Paso3 hr
Jul 30, 5:37 PM MDTFlash Flood WarningPUBEl Paso3 hr
Jul 30, 5:46 PM MDTSevere Thunderstorm WarningPUBEl Paso44 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.