Alert archive / Colorado / Tornado Warnings in 2007

Tornado Warning 4, NWS Pueblo, CO

April 21, 2007Kiowa County, Prowers County, Colorado

NWS Pueblo, CO issued this tornado warning at Apr 21, 2007, 4:41 PM MDT for Kiowa County, Prowers County, Colorado. It was in force for 64 min. 2 reports 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 21, 2007, 4:41 PM MDT (22:41 UTC)
Expired
Apr 21, 2007, 5:45 PM MDT
In force
64 min
Issued by
NWS Pueblo, CO
Area
Counties, with a storm outline in the text

Counties Kiowa County, CO, Prowers County, CO

The radar

The Goodland radar (KGLD), 156 km from the middle of the area, began a volume at 22:40 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 21, 5:07 PM MDTHAIL 0.255 W Granada, CO
Apr 21, 5:07 PM MDTHAIL 15 W Granada, 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 21, 2:10 PM MDTTornado WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.7 hours before the alert went out and 212 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 2007-04-21Temperature 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 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 2007-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939587897Sfc1 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
2628 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
178 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.

000 
WFUS55 KPUB 212240
TORPUB
COC061-099-212345-
/O.NEW.KPUB.TO.W.0004.070421T2241Z-070421T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE PUEBLO CO
441 PM MDT SAT APR 21 2007

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN KIOWA COUNTY IN SOUTHEAST COLORADO...
  CENTRAL PROWERS COUNTY IN SOUTHEAST COLORADO...

* UNTIL 545 PM MDT...

* AT 436 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE STORM WHICH WAS RAPIDLY ROTATING AND CAPABLE OF PRODUCING A
  TORNADO.  THIS SEVERE STORM WAS LOCATED 15 MILES SOUTHWEST OF
  GRANADA...OR 16 MILES SOUTHEAST OF LAMAR...AND WAS MOVING TOWARD
  THE NORTHEAST AT 30 MPH.

* LOCATIONS IMPACTED INCLUDE...
  GRANADA.
  HARTMAN.
  SHERIDAN LAKE.

DAMAGING WINDS AND VERY LARGE HAIL ARE LIKELY IN THE WARNED AREA.

THE SAFEST PLACE TO BE IN A HOUSE IS IN A BASEMENT...UNDER STURDY
FURNITURE. IF NO BASEMENT IS AVAILABLE...GO TO THE LOWEST FLOOR...IN
AN INTERIOR HALLWAY OR SMALL INTERIOR ROOM...SUCH AS A CLOSET OR
BATHROOM. USE BLANKETS OR PILLOWS TO COVER AND PROTECT YOUR BODY FROM
FLYING DEBRIS. ALWAYS STAY AWAY FROM WINDOWS.

IF YOU ARE OUTDOORS...OR IN A MOBILE HOME...OR IN A VEHICLE...GO TO A
NEARBY STURDY STRUCTURE AND GET IN A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE AWAY FROM WINDOWS. IF THERE IS NO STURDY
STRUCTURE AVAILABLE...AS A LAST RESORT...GO TO A CULVERT...DITCH...OR
OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3788 10262 3777 10236 3833 10205 3852 10232

$$
2 follow-up statements
000 
WWUS55 KPUB 212248
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
447 PM MDT SAT APR 21 2007

COC061-099-212345-
/O.CON.KPUB.TO.W.0004.000000T0000Z-070421T2345Z/
PROWERS CO-KIOWA CO-
447 PM MDT SAT APR 21 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR
SOUTHEASTERN KIOWA AND CENTRAL PROWERS COUNTIES...

AT 444 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH RAPID ROTATION CAPABLE OF
PRODUCING A TORNADO.  THIS SEVERE STORM WAS CENTERED 10 MILES
SOUTHWEST OF GRANADA...OR 15 MILES SOUTHEAST OF LAMAR...AND WAS
MOVING TOWARD THE NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
  GRANADA.
  BRISTOL.
  HARTMAN.
  SHERIDAN LAKE.

THE SAFEST PLACE TO BE IN A HOUSE IS IN A BASEMENT...UNDER STURDY
FURNITURE. IF NO BASEMENT IS AVAILABLE...GO TO THE LOWEST FLOOR...IN
AN INTERIOR HALLWAY OR SMALL INTERIOR ROOM...SUCH AS A CLOSET OR
BATHROOM. USE BLANKETS OR PILLOWS TO COVER AND PROTECT YOUR BODY FROM
FLYING DEBRIS. ALWAYS STAY AWAY FROM WINDOWS.

IF YOU ARE OUTDOORS...OR IN A MOBILE HOME...OR IN A VEHICLE...GO TO A
NEARBY STURDY STRUCTURE AND GET IN A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR POSSIBLE AWAY FROM WINDOWS. IF THERE IS NO STURDY
STRUCTURE AVAILABLE...AS A LAST RESORT...GO TO A CULVERT...DITCH...OR
OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3788 10262 3777 10236 3833 10205 3852 10232
      3805 10252

$$
000 
WWUS55 KPUB 212303
SVSPUB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PUEBLO CO
502 PM MDT SAT APR 21 2007

COC061-099-212345-
/O.CON.KPUB.TO.W.0004.000000T0000Z-070421T2345Z/
PROWERS CO-KIOWA CO-
502 PM MDT SAT APR 21 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR
SOUTHEASTERN KIOWA AND CENTRAL PROWERS COUNTIES...

AT 501 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS SEVERE STORM WAS CENTERED NEAR GRANADA...OR
14 MILES EAST OF LAMAR...AND WAS MOVING TOWARD THE NORTHEAST AT 45
MPH.

LOCATIONS IMPACTED INCLUDE...
  BRISTOL.
  HARTMAN.
  SHERIDAN LAKE.

LAT...LON 3788 10262 3777 10236 3833 10205 3852 10232
      3805 10252

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 21, 3:54 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers66 min
Apr 21, 4:55 PM MDTSevere Thunderstorm WarningPUBBaca65 min
Apr 21, 5:30 PM MDTTornado WarningPUBBaca60 min
Apr 21, 5:44 PM MDTTornado WarningPUBKiowa, Prowers61 min

Nearby

Tornado Warnings in Colorado, 2007Every tornado warning in 2007Tornadoes in 2007

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.