Alert archive / Colorado / Tornado Warnings in 2013
Tornado Warning 34, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 22, 2013, 5:40 PM MDT for Adams County, Morgan County, Washington County, Colorado. It was in force for 35 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 22, 2013, 5:40 PM MDT (23:40 UTC)
- Expired
- Jun 22, 2013, 6:15 PM MDT
- In force
- 35 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Adams County, CO, Morgan County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 75 km from the middle of the area, began a volume at 23:42 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 22, 6:03 PM MDT | HAIL 1 | 3 Nnw Woodrow, 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 |
|---|---|---|---|
| Jun 22, 4:18 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.7 hours before the alert went out and 39 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
- 9 J/kg
- Mixed-layer CIN
- -479 J/kg
- Mixed-layer LCL
- 1617 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
656
WFUS55 KBOU 222340
TORBOU
COC001-087-121-230015-
/O.NEW.KBOU.TO.W.0034.130622T2340Z-130623T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
540 PM MDT SAT JUN 22 2013
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN WASHINGTON COUNTY IN NORTHEAST COLORADO...
EXTREME SOUTHEASTERN MORGAN COUNTY IN NORTHEAST COLORADO...
EXTREME NORTHEASTERN ADAMS COUNTY IN NORTHEAST COLORADO...
* UNTIL 615 PM MDT
* AT 540 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 6 MILES WEST OF WOODROW...OR 21 MILES SOUTH OF
FORT MORGAN...MOVING EAST AT 15 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.
* LOCATIONS IMPACTED INCLUDE...
WOODROW AND SHAMROCK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3982 10383 4005 10381 4005 10346 3982 10346
TIME...MOT...LOC 2340Z 272DEG 14KT 3996 10369
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
RPK2 follow-up statements
969
WWUS55 KBOU 222351
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
551 PM MDT SAT JUN 22 2013
COC001-222359-
/O.CAN.KBOU.TO.W.0034.000000T0000Z-130623T0015Z/
ADAMS CO-
551 PM MDT SAT JUN 22 2013
...THE TORNADO WARNING FOR EXTREME NORTHEASTERN ADAMS COUNTY IS
CANCELLED...
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT
OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 4005 10346 3982 10346 3982 10370 4005 10370
TIME...MOT...LOC 2349Z 270DEG 19KT 3996 10360
$$
COC087-121-230015-
/O.CON.KBOU.TO.W.0034.000000T0000Z-130623T0015Z/
WASHINGTON CO-MORGAN CO-
551 PM MDT SAT JUN 22 2013
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM MDT FOR WESTERN
WASHINGTON AND EXTREME SOUTHEASTERN MORGAN COUNTIES...
AT 549 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER WOODROW...OR 23 MILES SOUTHEAST OF FORT MORGAN...
MOVING EAST AT 20 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...SPORADIC DAMAGE TO MOBILE HOMES...ROOFS AND VEHICLES.
LOCATIONS IMPACTED INCLUDE...
WOODROW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A
VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4005 10346 3982 10346 3982 10370 4005 10370
TIME...MOT...LOC 2349Z 270DEG 19KT 3996 10360
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
Rpk454
WWUS55 KBOU 230010
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
610 PM MDT SAT JUN 22 2013
COC087-121-230019-
/O.EXP.KBOU.TO.W.0034.000000T0000Z-130623T0015Z/
WASHINGTON CO-MORGAN CO-
610 PM MDT SAT JUN 22 2013
...THE TORNADO WARNING FOR WESTERN WASHINGTON AND EXTREME
SOUTHEASTERN MORGAN COUNTIES WILL EXPIRE AT 615 PM MDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER APPEARS CAPABLE OF PRODUCING A TORNADO.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
ADDITIONAL SEVERE THUNDERSTORM DEVELOPMENT REMAINS POSSIBLE...AND A
TORNADO WATCH REMAINS IN EFFECT UNTIL 11 pm mdt.
LAT...LON 4005 10346 3982 10346 3982 10370 4005 10370
TIME...MOT...LOC 0005Z 272DEG 14KT 3996 10360
$$
RJKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 3:24 PM MDT | Special Weather Statement | BOU | Adams | 36 min |
| Jun 22, 3:48 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 42 min |
| Jun 22, 4:14 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 31 min |
| Jun 22, 4:31 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 29 min |
| Jun 22, 4:34 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 26 min |
| Jun 22, 4:59 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 31 min |
Nearby
Tornado Warnings in Colorado, 2013Every tornado warning in 2013Tornadoes in 2013
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.