Alert archive / Colorado / Tornado Warnings in 2008
Tornado Warning 33, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 20, 2008, 12:08 PM MDT for Lincoln County, Colorado. It was in force for 37 min. 1 report 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 20, 2008, 12:08 PM MDT (18:08 UTC)
- Expired
- Jun 20, 2008, 12:45 PM MDT
- In force
- 37 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
County Lincoln County, CO
The radar
The Denver radar (KFTG), 120 km from the middle of the area, began a volume at 18:10 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 |
|---|---|---|---|
| Jun 20, 12:10 PM MDT | TORNADO | 7 N Arriba, CO | TORNADO 3 WAS ON GROUND FOR 13 MINUTES WITH POTENTIAL STRUCTURAL DAMAGE. TORNADO EVENTUALLY BECAME OBSCURED BY RAIN. |
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 |
|---|---|---|---|
| Jun 19, 6:22 PM MDT | Severe Thunderstorm Watch | SPC | 27 hr |
| Jun 20, 11:56 AM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 6.1 hours before the alert went out and 57 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
- 359 J/kg
- Mixed-layer CIN
- -185 J/kg
- Mixed-layer LCL
- 1200 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KBOU 201808 TORBOU COC073-201845- /O.NEW.KBOU.TO.W.0033.080620T1808Z-080620T1845Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 1208 PM MDT FRI JUN 20 2008 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN LINCOLN COUNTY IN EAST CENTRAL COLORADO * UNTIL 1245 PM MDT * AT 1208 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES NORTH OF ARRIBA...OR 26 MILES EAST OF LIMON. THIS STORM WAS MOVING SOUTHEAST AT 15 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ARRIBA. 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 SAFE SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 3925 10317 3924 10337 3953 10339 3953 10317 TIME...MOT...LOC 1808Z 323DEG 26KT 3939 10322 $$ RPK
3 follow-up statements
000 WWUS55 KBOU 201818 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1218 PM MDT FRI JUN 20 2008 COC073-201845- /O.CON.KBOU.TO.W.0033.000000T0000Z-080620T1845Z/ LINCOLN CO- 1218 PM MDT FRI JUN 20 2008 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 PM MDT FOR NORTHEASTERN LINCOLN COUNTY... AT 1218 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS LOCATED 6 MILES NORTH OF ARRIBA...OR 24 MILES EAST OF LIMON. THIS STORM WAS MOVING SOUTHEAST AT 15 MPH. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ARRIBA. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 3925 10317 3924 10337 3953 10339 3953 10317 TIME...MOT...LOC 1818Z 323DEG 26KT 3934 10323 $$ RPK
000 WWUS55 KBOU 201828 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1228 PM MDT FRI JUN 20 2008 COC073-201845- /O.CON.KBOU.TO.W.0033.000000T0000Z-080620T1845Z/ LINCOLN CO- 1227 PM MDT FRI JUN 20 2008 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 PM MDT FOR NORTHEASTERN LINCOLN COUNTY... AT 1227 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO TRACK A TORNADO. THIS STORM WAS LOCATED 4 MILES NORTHEAST OF ARRIBA...OR 26 MILES EAST OF LIMON. THIS STORM WAS MOVING SOUTHEAST AT 15 MPH. LAW ENFORCEMENT HAS REPORTED DAMAGE WITH THIS TORNADO NORTH OF ARRIBA. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ARRIBA. 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 3925 10317 3924 10337 3953 10339 3953 10317 TIME...MOT...LOC 1827Z 323DEG 26KT 3929 10318 $$ RPK
000 WWUS55 KBOU 201845 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 1245 PM MDT FRI JUN 20 2008 COC073-201855- /O.EXP.KBOU.TO.W.0033.000000T0000Z-080620T1845Z/ LINCOLN CO- 1245 PM MDT FRI JUN 20 2008 ...THE TORNADO WARNING FOR NORTHEASTERN LINCOLN COUNTY HAS EXPIRED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE AREA AND MOVED INTO WESTERN KIT CARSON COUNTY. LAT...LON 3925 10317 3924 10337 3953 10339 3953 10317 TIME...MOT...LOC 1845Z 323DEG 26KT 3919 10308 $$ RPK
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 8:26 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 49 min |
| Jun 19, 8:58 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 33 min |
| Jun 19, 9:06 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 23 min |
| Jun 19, 9:43 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 28 min |
| Jun 20, 11:37 AM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 38 min |
| Jun 20, 1:09 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 51 min |
| Jun 20, 3:31 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 44 min |
| Jun 20, 5:14 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 46 min |
| Jun 20, 5:49 PM MDT | Tornado Warning | BOU | Morgan | 26 min |
Nearby
Tornado Warnings in Colorado, 2008Every tornado warning in 2008Tornadoes in 2008
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.