Alert archive / Colorado / Tornado Warnings in 2007

Tornado Warning 2, NWS Denver/Boulder, CO

March 24, 2007Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Mar 24, 2007, 4:59 PM MDT for Phillips County, Sedgwick County, Colorado. It was in force for 48 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
Mar 24, 2007, 4:59 PM MDT (22:59 UTC)
Expired
Mar 24, 2007, 5:47 PM MDT
In force
48 min
Issued by
NWS Denver/Boulder, CO
Area
Counties, with a storm outline in the text

Counties Phillips County, CO, Sedgwick County, CO

The radar

The Goodland radar (KGLD), 165 km from the middle of the area, began a volume at 23:01 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, 11.0 hours before the alert went out and 131 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 2007-03-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLEL10008507005003002001001 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 2007-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
3 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
499 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
126 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 KBOU 242302
TORBOU
COC095-115-242345-
/O.NEW.KBOU.TO.W.0002.070324T2259Z-070324T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
459 PM MDT SAT MAR 24 2007

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  EASTERN SEDGWICK COUNTY IN NORTHEAST COLORADO
  NORTHEASTERN PHILLIPS COUNTY IN NORTHEAST COLORADO

* UNTIL 545 PM MDT

* AT 459 PM MDT...PHILLIPS COUNTY SHERIFFS REPORTED A TORNADO 
  2 MILES SOUTHEAST OF SIXTEEN-MILE CORNER...OR ABOUT 15 MILES       
  NORTHEAST OF HOLYOKE. THIS STORM WAS MOVING NORTH AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  SIXTEEN-MILE CORNER AND AMHERST.

THIS WARNING REPLACES THE EARLIER TORNADO WARNING FOR PHILLIPS 
COUNTY.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4068 10234 4068 10206 4095 10206 4095 10235
      4079 10239

$$
2 follow-up statements
000 
WWUS55 KBOU 242316
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
516 PM MDT SAT MAR 24 2007

COC095-115-242345-
/O.CON.KBOU.TO.W.0002.000000T0000Z-070324T2345Z/
SEDGWICK CO-PHILLIPS CO-
516 PM MDT SAT MAR 24 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR
NORTHEASTERN PHILLIPS AND EASTERN SEDGWICK COUNTIES...

AT 516 PM MDT...TRAINED WEATHER SPOTTERS CONTINUED TO REPORT A
TORNADO.  THIS STORM WAS LOCATED 6 MILES NORTH OF SIXTEEN-MILE
CORNER...OR ABOUT 10 MILES SOUTH OF JULESBURG. THIS STORM WAS MOVING
NORTH AT 20 MPH.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
SIXTEEN-MILE CORNER...JULESBURG.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4066 10240 4065 10206 4099 10206 4099 10236
      4079 10239

$$
000 
WWUS55 KBOU 242347
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
543 PM MDT SAT MAR 24 2007

COC095-115-242353-
/O.CAN.KBOU.TO.W.0002.000000T0000Z-070324T2345Z/
SEDGWICK CO-PHILLIPS CO-
543 PM MDT SAT MAR 24 2007

...THE TORNADO WARNING FOR NORTHEASTERN PHILLIPS AND EASTERN SEDGWICK
COUNTIES IS CANCELLED...

THE LINE OF STORMS RESPONSIBLE FOR THE TORNADOES HAS LIFTED NORTH 
INTO NEBRASKA.  

RESIDENTS OF PHILLIPS AND SEDGWICK COUNTIES WILL CONTINUE TO HAVE 
SHOWERS AND THUNDERSTORMS THIS EVENING...AND THERE IS A TORNADO 
WATCH IN EFFECT ACROSS THE STATE LINE IN NEBRASKA.  TORNADOES MAY 
AGAIN DEVELOP...SO BE CAUTIOUS THIS EVENING AND REPORT ANY SEVERE
WEATHER TO YOUR COUNTY SHERIFF.  


LAT...LON 4066 10240 4065 10206 4099 10206 4099 10236
      4079 10239

$$

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 23, 7:04 PM MDTSevere Thunderstorm WarningBOUMorgan48 min
Mar 24, 4:58 AM MDTSnow AdvisoryBOUPark13 hr
Mar 24, 4:22 PM MDTTornado WarningBOUPhillips38 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.