Alert archive / Colorado / Tornado Warnings in 2010

Tornado Warning 46, NWS Pueblo, CO

July 20, 2010El Paso County, Colorado

NWS Pueblo, CO issued this tornado warning at Jul 20, 2010, 6:46 PM MDT for El Paso County, Colorado. It was in force for 31 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 20, 2010, 6:46 PM MDT (00:46 UTC)
Expired
Jul 20, 2010, 7:17 PM MDT
In force
31 min
Issued by
NWS Pueblo, CO
Area
Storm-based polygon

County El Paso County, CO

The radar

The Pueblo radar (KPUX), 56 km from the middle of the area, began a volume at 00:48 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 00:00Z, 0.8 hours before the alert went out and 153 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 00:00Z on 2010-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 261 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 00:00Z on 2010-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 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
261 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1296 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

915 
WFUS55 KPUB 210046
TORPUB
COC041-210130-
/O.NEW.KPUB.TO.W.0046.100721T0046Z-100721T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
646 PM MDT TUE JUL 20 2010

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL EL PASO COUNTY IN EAST CENTRAL COLORADO...

* UNTIL 730 PM MDT

* AT 644 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED NEAR SCHRIEVER AFB...OR 12 MILES EAST OF COLORADO
  SPRINGS...AND MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ELLICOTT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3902 10446 3890 10428 3872 10456 3885 10471
TIME...MOT...LOC 0045Z 224DEG 12KT 3885 10457

$$
2 follow-up statements
438 
WWUS55 KPUB 210108
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
708 PM MDT TUE JUL 20 2010

COC041-210130-
/O.CON.KPUB.TO.W.0046.000000T0000Z-100721T0130Z/
EL PASO CO-
708 PM MDT TUE JUL 20 2010

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL EL PASO COUNTY
UNTIL 730 PM MDT...

AT 702 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS 
STORM WAS LOCATED NORTHEAST OF SCHRIEVER AFB...OR 15 MILES EAST OF 
COLORADO SPRINGS...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
  ELLICOTT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3887 10463 3902 10446 3890 10428 3876 10450
TIME...MOT...LOC 0107Z 224DEG 12KT 3883 10450

$$
383 
WWUS55 KPUB 210117
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
717 PM MDT TUE JUL 20 2010

COC041-210126-
/O.CAN.KPUB.TO.W.0046.000000T0000Z-100721T0130Z/
EL PASO CO-
717 PM MDT TUE JUL 20 2010

...THE TORNADO 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.

REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
CENTRAL AND EAST CENTRAL EL PASO COUNTY UNTIL 730 PM. HEAVY RAINFALL 
CAN ALSO BE EXPECTED AS THESE STORMS CONTINUE TO WEAKEN. 

LAT...LON 3887 10463 3902 10446 3890 10428 3876 10450
TIME...MOT...LOC 0116Z 224DEG 12KT 3884 10446

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 6:04 PM MDTSevere Thunderstorm WarningPUBEl Paso56 min
Jul 20, 6:10 PM MDTSevere Thunderstorm WarningPUBProwers65 min
Jul 20, 6:19 PM MDTSevere Thunderstorm WarningPUBBent, Las Animas, Otero41 min
Jul 20, 6:22 PM MDTAreal Flood AdvisoryPUBEl Paso2 hr
Jul 20, 6:29 PM MDTSevere Thunderstorm WarningPUBCrowley, Otero, Pueblo46 min
Jul 20, 6:30 PM MDTSevere Thunderstorm WarningPUBEl Paso60 min
Jul 20, 6:43 PM MDTFlash Flood WarningPUBEl Paso99 min
Jul 20, 6:52 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers53 min
Jul 20, 6:58 PM MDTSevere Thunderstorm WarningPUBBaca, Bent, Crowley, Las Animas, Otero, Pueblo46 min
Jul 20, 7:36 PM MDTFlash Flood WarningPUBEl Paso3 hr
Jul 20, 7:36 PM MDTSevere Thunderstorm WarningPUBKiowa51 min
Jul 20, 7:43 PM MDTSevere Thunderstorm WarningPUBKiowa25 min
Jul 21, 9:19 AM MDTFlash Flood WatchPUBChaffee, Conejos, El Paso, Fremont, Lake, Mineral and 3 more12 hr
Jul 21, 5:50 PM MDTAreal Flood AdvisoryPUBEl Paso3 hr

Nearby

Tornado Warnings in Colorado, 2010Every tornado warning in 2010Tornadoes in 2010

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.