Alert archive / Colorado / Tornado Warnings in 2014
Tornado Warning 6, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 7, 2014, 4:15 PM MDT for Washington County, Colorado. It was in force for 45 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
- May 7, 2014, 4:15 PM MDT (22:15 UTC)
- Expired
- May 7, 2014, 5:00 PM MDT
- In force
- 45 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.25 in
County Washington County, CO
The radar
The Denver radar (KFTG), 126 km from the middle of the area, began a volume at 22:15 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 7, 4:22 PM MDT | TORNADO | 2 Ssw Platner, CO | |
| May 7, 4:30 PM MDT | TORNADO | 1 W Otis, 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 7, 12:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 10.3 hours before the alert went out and 25 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
- 97 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
996
WFUS55 KBOU 072215
TORBOU
COC121-072300-
/O.NEW.KBOU.TO.W.0006.140507T2215Z-140507T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
415 PM MDT WED MAY 7 2014
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN WASHINGTON COUNTY IN NORTHEAST COLORADO...
* UNTIL 500 PM MDT
* AT 411 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 6 MILES SOUTH OF AKRON...MOVING NORTHEAST AT
20 MPH. A SECOND POSSIBLE TORNADO WAS INDICATED NEAR OTIS OR 14
MILES SOUTHEAST OF AKRON.
HAZARD...TORNADO AND HALF DOLLAR SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED.
DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE
DAMAGE IS LIKELY.
* LOCATIONS IMPACTED INCLUDE...
AKRON...OTIS...PLATNER...ELBA AND BURDETT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3986 10321 4003 10336 4043 10298 4019 10280
TIME...MOT...LOC 2211Z 213DEG 18KT 4007 10323
TORNADO...RADAR INDICATED
HAIL...1.25IN
$$
BAKER1 follow-up statement
316
WWUS55 KBOU 072227
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
427 PM MDT WED MAY 7 2014
COC121-072300-
/O.CON.KBOU.TO.W.0006.000000T0000Z-140507T2300Z/
WASHINGTON CO-
427 PM MDT WED MAY 7 2014
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM MDT FOR
NORTHEASTERN WASHINGTON COUNTY...
AT 426 PM MDT...A CONFIRMED TORNADO WAS LOCATED SOUTHWEST OF
PLATNER...OR 6 MILES EAST OF AKRON...MOVING NORTHEAST AT 20 MPH.
HAZARD...DAMAGING TORNADO AND HALF DOLLAR SIZE HAIL.
SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
LOCATIONS IMPACTED INCLUDE...
AKRON...OTIS...PLATNER...ELBA AND BURDETT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW! MOVE TO A
BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3986 10321 4003 10336 4043 10298 4019 10280
TIME...MOT...LOC 2226Z 221DEG 17KT 4013 10310
TORNADO...OBSERVED
HAIL...1.25IN
$$
BAKERThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 8:46 PM MDT | Special Weather Statement | BOU | Weld | 29 min |
| May 6, 11:23 PM MDT | Special Weather Statement | BOU | Weld | 52 min |
| May 6, 11:49 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 41 min |
| May 7, 1:31 PM MDT | Special Weather Statement | BOU | Larimer | 44 min |
| May 7, 1:45 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 45 min |
| May 7, 1:51 PM MDT | Tornado Warning | BOU | Weld | 24 min |
| May 7, 1:51 PM MDT | Tornado Warning | BOU | Weld | 24 min |
| May 7, 2:26 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Washington | 49 min |
| May 7, 2:32 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| May 7, 2:33 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 27 min |
| May 7, 2:39 PM MDT | Tornado Warning | BOU | Weld | 36 min |
| May 7, 2:56 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 34 min |
| May 7, 3:00 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 45 min |
| May 7, 3:01 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 44 min |
| May 7, 3:04 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 41 min |
| May 7, 3:27 PM MDT | Tornado Warning | BOU | Weld | 33 min |
| May 7, 3:30 PM MDT | Tornado Warning | BOU | Washington | 45 min |
| May 7, 3:57 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 48 min |
| May 7, 4:00 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| May 7, 4:26 PM MDT | Tornado Warning | BOU | Weld | 34 min |
| May 7, 4:50 PM MDT | Tornado Warning | BOU | Logan, Phillips, Washington | 40 min |
| May 7, 4:52 PM MDT | Tornado Warning | BOU | Phillips | 23 min |
| May 7, 4:57 PM MDT | Tornado Warning | BOU | Logan, Sedgwick | 48 min |
| May 7, 5:10 PM MDT | Tornado Warning | BOU | Phillips | 35 min |
| May 7, 5:17 PM MDT | Special Weather Statement | BOU | Broomfield | 43 min |
| May 7, 5:24 PM MDT | Special Weather Statement | BOU | Broomfield | 36 min |
| May 7, 5:30 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 45 min |
| May 7, 5:30 PM MDT | Tornado Warning | BOU | Logan, Phillips | 30 min |
| May 7, 5:38 PM MDT | Tornado Warning | BOU | Phillips, Sedgwick | 37 min |
Nearby
Tornado Warnings in Colorado, 2014Every tornado warning in 2014Tornadoes in 2014
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.