Alert archive / Colorado / Tornado Warnings in 2009
Tornado Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 7, 2009, 3:24 PM MDT for Adams County, Colorado. It was in force for 31 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
- Jun 7, 2009, 3:24 PM MDT (21:24 UTC)
- Expired
- Jun 7, 2009, 3:55 PM MDT
- In force
- 31 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
County Adams County, CO
The radar
The Denver radar (KFTG), 61 km from the middle of the area, began a volume at 21:26 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.
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 7, 11:02 AM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.4 hours before the alert went out and 53 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
- 2464 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 23 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 072124 TORBOU COC001-072215- /O.NEW.KBOU.TO.W.0009.090607T2124Z-090607T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 324 PM MDT SUN JUN 7 2009 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... EASTERN ADAMS COUNTY IN NORTHEAST COLORADO * UNTIL 415 PM MDT * AT 324 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES SOUTHWEST OF SHAMROCK...OR 35 MILES SOUTH OF FORT MORGAN. THIS STORM WAS MOVING EAST AT 20 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHAMROCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 4000 10372 3975 10372 3974 10404 4000 10403 TIME...MOT...LOC 2124Z 260DEG 9KT 3978 10395 $$ RPK
3 follow-up statements
000 WWUS55 KBOU 072132 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 332 PM MDT SUN JUN 7 2009 COC001-072215- /O.CON.KBOU.TO.W.0009.000000T0000Z-090607T2215Z/ ADAMS CO- 332 PM MDT SUN JUN 7 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM MDT FOR EASTERN ADAMS COUNTY... AT 332 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS LOCATED 10 MILES SOUTHWEST OF SHAMROCK...OR 35 MILES SOUTH OF FORT MORGAN. THIS STORM WAS MOVING EAST AT 20 MPH. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHAMROCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 4000 10372 3975 10372 3974 10404 4000 10403 TIME...MOT...LOC 2132Z 264DEG 9KT 3978 10392 $$
000 WWUS55 KBOU 072147 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 347 PM MDT SUN JUN 7 2009 COC001-072215- /O.CON.KBOU.TO.W.0009.000000T0000Z-090607T2215Z/ ADAMS CO- 347 PM MDT SUN JUN 7 2009 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM MDT FOR EASTERN ADAMS COUNTY... AT 347 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS LOCATED 6 MILES SOUTHEAST OF SHAMROCK...OR 31 MILES SOUTH OF FORT MORGAN. THIS STORM WAS MOVING EAST AT 20 MPH. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SHAMROCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 4000 10372 3975 10372 3974 10404 4000 10403 TIME...MOT...LOC 2147Z 259DEG 17KT 3981 10374 $$
000 WWUS55 KBOU 072155 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 355 PM MDT SUN JUN 7 2009 COC001-072205- /O.CAN.KBOU.TO.W.0009.000000T0000Z-090607T2215Z/ ADAMS CO- 355 PM MDT SUN JUN 7 2009 ...THE TORNADO WARNING FOR EASTERN ADAMS COUNTY IS CANCELLED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS EXITED THE AREA. LAT...LON 4000 10372 3975 10372 3974 10404 4000 10403 TIME...MOT...LOC 2155Z 259DEG 17KT 3982 10369 $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 7:48 PM MDT | Special Weather Statement | BOU | Sedgwick | 27 min |
| Jun 6, 8:18 PM MDT | Severe Thunderstorm Warning | BOU | Sedgwick | 42 min |
| Jun 6, 11:27 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 48 min |
| Jun 7, 12:08 AM MDT | Severe Thunderstorm Warning | BOU | Logan, Sedgwick | 38 min |
| Jun 7, 12:01 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 59 min |
| Jun 7, 12:55 PM MDT | Areal Flood Advisory | BOU | Larimer, Weld | 55 min |
| Jun 7, 1:16 PM MDT | Tornado Warning | BOU | Adams, Broomfield, Weld | 19 min |
| Jun 7, 1:28 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 62 min |
| Jun 7, 1:40 PM MDT | Tornado Warning | BOU | Arapahoe, Denver | 35 min |
| Jun 7, 1:53 PM MDT | Tornado Warning | BOU | Arapahoe, Douglas, Elbert | 37 min |
| Jun 7, 2:12 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer, Weld | 20 min |
| Jun 7, 2:24 PM MDT | Tornado Warning | BOU | Arapahoe, Elbert | 51 min |
| Jun 7, 3:12 PM MDT | Tornado Warning | BOU | Arapahoe, Elbert | 33 min |
| Jun 7, 3:43 PM MDT | Tornado Warning | BOU | Lincoln, Washington | 47 min |
| Jun 7, 4:05 PM MDT | Tornado Warning | BOU | Washington | 40 min |
Nearby
Tornado Warnings in Colorado, 2009Every tornado warning in 2009Tornadoes in 2009
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.