Alert archive / Colorado / Tornado Warnings in 2005

Tornado Warning 24, NWS Denver/Boulder, CO

June 27, 2005Logan County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 27, 2005, 6:23 PM MDT for Logan County, Colorado. It was in force for 52 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
Jun 27, 2005, 6:23 PM MDT (00:23 UTC)
Expired
Jun 27, 2005, 7:15 PM MDT
In force
52 min
Issued by
NWS Denver/Boulder, CO
Area
Counties, with a storm outline in the text

County Logan County, CO

The radar

The Cheyenne radar (KCYS), 158 km from the middle of the area, began a volume at 00:26 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
Jun 27, 7:09 PM MDTTORNADO7 N Iliff, COON THE GROUND UNTIL 715 PM.
Jun 27, 7:16 PM MDTHAIL 0.8810 Nw Crook, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.4 hours before the alert went out and 116 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 2005-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2005-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939587897117Sfc1 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
9 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
4529 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
64 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 280026
TORBOU
COC075-280115-
/O.NEW.KBOU.TO.W.0024.050628T0023Z-050628T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
623 PM MDT MON JUN 27 2005

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN LOGAN COUNTY IN NORTHEAST COLORADO

* UNTIL 715 PM MDT

* AT 622 PM MDT...DOPPLER WEATHER RADAR INDICATED A TORNADO 9        
  MILES WEST OF SIDNEY NEBRASKA. THIS STORM WAS MOVING SOUTHEAST AT 
  10 MPH AND WILL BE NEAR THE TOWN OF PEETZ AROUND 650 PM.  THIS STORM 
  HAS A HISTORY OF PRODUCING MULTIPLE TORNADOES IN NEBRASKA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TWIN
  BUTTES...PROCTOR...PEETZ...PADRONI...ILIFF AND CROOK.

THIS IS AN EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING
SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE
TORNADO...TAKE COVER IMMEDIATELY.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 4100 10278 4100 10335 4074 10320 4074 10268

$$
4 follow-up statements
000 
WWUS55 KBOU 280040
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
640 PM MDT MON JUN 27 2005

COC075-280115-
/O.CON.KBOU.TO.W.0024.000000T0000Z-050628T0115Z/
LOGAN CO-
640 PM MDT MON JUN 27 2005

...A TORNADO WARNING CONTINUES UNTIL 715 PM MDT FOR NORTHEASTERN
LOGAN COUNTY...

AT 637 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS
STORM WAS LOCATED 5 MILES NORTHEAST OF PEETZ...OR ABOUT 9 MILES
SOUTHWEST OF SIDNEY. THIS STORM WAS MOVING SOUTH AT 10 MPH.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TWIN BUTTES...PROCTOR...PEETZ...PADRONI...ILIFF AND CROOK.

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

LAT...LON 4100 10278 4100 10335 4074 10320 4074 10268

$$
000 
WWUS55 KBOU 280054
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
652 PM MDT MON JUN 27 2005

COC075-280115-
/O.CON.KBOU.TO.W.0024.000000T0000Z-050628T0115Z/
LOGAN CO-
652 PM MDT MON JUN 27 2005

...A TORNADO WARNING CONTINUES UNTIL 715 PM MDT FOR NORTHEASTERN
LOGAN COUNTY...

AT 647 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL
CLOUD LOCATED 3 MILES NORTH OF CROOK...OR ABOUT 10 MILES WEST 
OF SEDGWICK. THIS STORM WAS MOVING SOUTHEAST AT 15 MPH.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TWIN BUTTES...PROCTOR...PEETZ...PADRONI...ILIFF AND CROOK.

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.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 4100 10278 4100 10335 4074 10320 4074 10268

$$
000 
WWUS55 KBOU 280105
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
701 PM MDT MON JUN 27 2005

COC075-280115-
/O.CON.KBOU.TO.W.0024.000000T0000Z-050628T0115Z/
LOGAN CO-
701 PM MDT MON JUN 27 2005

...A TORNADO WARNING CONTINUES UNTIL 715 PM MDT FOR NORTHEASTERN
LOGAN COUNTY...

AT 657 PM MDT...AN INTENSE THUNDERSTORM WAS LOCATED IN EXTREME 
NORTHERN LOGAN COUNTY ALONG THE NEBRASKA BORDER EAST OF HIGHWAY 
113.  TRAINED WEATHER SPOTTERS CONTINUE TO REPORT FUNNEL CLOUDS 
ABOUT 5 MILES EAST OF PEETZ. THIS STORM WAS MOVING SOUTHEAST AT 10 
MPH.  THIS STORM HAS A HISTORY OF PRODUCING MULTIPLE TORNADOES IN 
NEBRASKA.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TWIN BUTTES...PROCTOR...PEETZ...PADRONI...ILIFF AND CROOK.

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.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 4100 10278 4100 10335 4074 10320 4074 10268

$$
000 
WWUS55 KBOU 280110
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
709 PM MDT MON JUN 27 2005

COC075-280115-
/O.CON.KBOU.TO.W.0024.000000T0000Z-050628T0115Z/
LOGAN CO-
709 PM MDT MON JUN 27 2005

...A TORNADO WARNING CONTINUES UNTIL 715 PM MDT FOR NORTHEASTERN
LOGAN COUNTY...

AT 707 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 7 MILES 
NORTH OF ILIFF.  THIS STORM WAS MOVING SOUTHEAST AT 10 MPH.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
TWIN BUTTES...PROCTOR...PEETZ...PADRONI...ILIFF AND CROOK.

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.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 4100 10278 4100 10335 4074 10320 4074 10268

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 7:11 PM MDTTornado WarningBOULogan, Sedgwick49 min
Jun 27, 7:57 PM MDTTornado WarningBOULogan, Sedgwick33 min
Jun 27, 8:25 PM MDTSevere Thunderstorm WarningBOUPhillips, Sedgwick50 min
Jun 28, 5:30 PM MDTSevere Thunderstorm WarningBOULogan30 min

Nearby

Tornado Warnings in Colorado, 2005Every tornado warning in 2005Tornadoes in 2005

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.