Alert archive / Colorado / Tornado Warnings in 2007
Tornado Warning 23, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 4, 2007, 8:15 PM MDT for Lincoln County, Colorado. It was in force for 45 min. 6 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
- May 4, 2007, 8:15 PM MDT (02:15 UTC)
- Expired
- May 4, 2007, 9:00 PM MDT
- In force
- 45 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Lincoln County, CO
The radar
The Denver radar (KFTG), 95 km from the middle of the area, began a volume at 02:17 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 4, 8:20 PM MDT | HAIL 0.75 | Limon, CO | |
| May 4, 8:22 PM MDT | HAIL 1 | Limon, CO | |
| May 4, 8:29 PM MDT | HAIL 0.88 | Limon, CO | |
| May 4, 8:40 PM MDT | HAIL 1.75 | 12 Nnw Arriba, CO | |
| May 4, 8:45 PM MDT | HAIL 1.75 | 2 Nw Genoa, CO | |
| May 4, 8:59 PM MDT | HAIL 1 | 3 N Genoa, 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 4, 5:36 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 2.3 hours before the alert went out and 69 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1202 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 201 m²/s²
- 0-3 km storm-relative helicity
- 761 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS55 KBOU 050215
TORBOU
COC073-050300-
/O.NEW.KBOU.TO.W.0023.070505T0215Z-070505T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
815 PM MDT FRI MAY 4 2007
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
NORTH CENTRAL LINCOLN COUNTY IN EAST CENTRAL COLORADO
* UNTIL 900 PM MDT
* AT 815 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 5 MILES
SOUTHWEST OF LIMON. THIS STORM WAS MOVING NORTHEAST AT 25 MPH.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LIMON AND
GENOA.
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 3933 10372 3910 10372 3913 10355 3953 10328
3954 10371
$$
BARJENBRUCH2 follow-up statements
000
WWUS55 KBOU 050234
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
833 PM MDT FRI MAY 4 2007
COC073-050300-
/O.CON.KBOU.TO.W.0023.000000T0000Z-070505T0300Z/
LINCOLN CO-
833 PM MDT FRI MAY 4 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR
NORTHEASTERN LINCOLN COUNTY...
AT 833 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
STORM WAS LOCATED 4 MILES WEST OF GENOA...OR ABOUT 6 MILES EAST OF
LIMON. ANOTHER STORM LOCATED ABOUT 12 MILES NORTHEAST OF GENOA WAS
ALSO CAPABLE OF PRODUCING A TORNADO. THE STORMS WERE MOVING
NORTHEAST AT 25 MPH.
LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GENOA.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT SATURDAY MORNING
FOR NORTHEASTERN COLORADO.
LAT...LON 3930 10362 3922 10356 3928 10337 3956 10318
3956 10355
$$
BARJENBRUCH000
WWUS55 KBOU 050235 CCA
SVSBOU
SEVERE WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE DENVER CO
833 PM MDT FRI MAY 4 2007
COC073-050300-
/O.CON.KBOU.TO.W.0023.000000T0000Z-070505T0300Z/
LINCOLN CO-
833 PM MDT FRI MAY 4 2007
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM MDT FOR NORTH
CENTRAL LINCOLN COUNTY...
AT 833 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS
STORM WAS LOCATED 4 MILES WEST OF GENOA...OR ABOUT 6 MILES EAST OF
LIMON. ANOTHER STORM LOCATED ABOUT 12 MILES NORTHEAST OF GENOA WAS
ALSO CAPABLE OF PRODUCING A TORNADO. THE STORMS WERE MOVING
NORTHEAST AT 25 MPH.
LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GENOA.
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.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 100 AM MDT SATURDAY MORNING
FOR NORTHEASTERN COLORADO.
LAT...LON 3930 10362 3922 10356 3928 10337 3956 10318
3956 10355
$$
BARJENBRUCHThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 6:21 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 39 min |
| May 4, 6:39 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 38 min |
| May 4, 6:41 PM MDT | Tornado Warning | BOU | Arapahoe | 31 min |
| May 4, 6:58 PM MDT | Tornado Warning | BOU | Washington | 47 min |
| May 4, 8:42 PM MDT | Tornado Warning | BOU | Elbert, Lincoln | 48 min |
| May 4, 8:44 PM MDT | Tornado Warning | BOU | Washington | 46 min |
| May 4, 9:00 PM MDT | Tornado Warning | BOU | Lincoln | 45 min |
| May 4, 9:28 PM MDT | Tornado Warning | BOU | Lincoln | 47 min |
| May 4, 9:32 PM MDT | Tornado Warning | BOU | Washington | 43 min |
| May 4, 10:15 PM MDT | Tornado Warning | BOU | Lincoln | 30 min |
| May 4, 11:00 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 60 min |
| May 4, 11:22 PM MDT | Tornado Warning | BOU | Phillips, Sedgwick | 38 min |
| May 5, 11:25 AM MDT | Severe Thunderstorm Warning | BOU | Logan | 16 min |
| May 5, 11:58 AM MDT | Tornado Warning | BOU | Logan | 47 min |
| May 5, 12:37 PM MDT | Tornado Warning | BOU | Logan | 28 min |
| May 5, 4:01 PM MDT | Tornado Warning | BOU | Adams | 29 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.