Alert archive / Colorado / Tornado Warnings in 2015
Tornado Warning 44, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 24, 2015, 5:00 PM MDT for Arapahoe County, Denver County, Colorado. It was in force for 19 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
- Jun 24, 2015, 5:00 PM MDT (23:00 UTC)
- Expired
- Jun 24, 2015, 5:19 PM MDT
- In force
- 19 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Arapahoe County, CO, Denver County, CO
The radar
The Denver radar (KFTG), 31 km from the middle of the area, began a volume at 22:59 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 24, 5:16 PM MDT | HAIL 1.5 | 3 Sse Denver, CO | |
| Jun 24, 5:20 PM MDT | HAIL 1 | 7 Se Aurora, CO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 11.0 hours before the alert went out and 142 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
- 145 J/kg
- Mixed-layer CIN
- -342 J/kg
- Mixed-layer LCL
- 3002 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
379
WFUS55 KBOU 242300
TORBOU
COC005-031-242330-
/O.NEW.KBOU.TO.W.0044.150624T2300Z-150624T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
500 PM MDT WED JUN 24 2015
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
WESTERN ARAPAHOE COUNTY IN NORTHEASTERN COLORADO...
SOUTHWESTERN DENVER COUNTY IN NORTHEASTERN COLORADO...
* UNTIL 530 PM MDT
* AT 500 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED OVER SOUTHERN DENVER...MOVING EAST AT 15 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD.
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...
DENVER...AURORA...NORTHERN CENTENNIAL...NORTHEASTERN LITTLETON...
ENGLEWOOD...GREENWOOD VILLAGE...SHERIDAN...ARAPAHOE PARK AND
BUCKLEY AFB.
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 YOU ARE IN A MOBILE
HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 3961 10502 3974 10500 3974 10461 3960 10468
TIME...MOT...LOC 2300Z 277DEG 15KT 3970 10492
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
COOPER1 follow-up statement
859
WWUS55 KBOU 242319
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
519 PM MDT WED JUN 24 2015
COC005-031-242325-
/O.CAN.KBOU.TO.W.0044.000000T0000Z-150624T2330Z/
ARAPAHOE CO-DENVER CO-
519 PM MDT WED JUN 24 2015
...THE TORNADO WARNING FOR WESTERN ARAPAHOE AND SOUTHWESTERN DENVER
COUNTIES IS CANCELLED...
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED.
THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED.
A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN ADAMS AND
CENTRAL DENVER COUNTIES UNTIL 530 PM MDT.
LAT...LON 3961 10502 3974 10500 3974 10461 3960 10468
TIME...MOT...LOC 2315Z 277DEG 15KT 3969 10484
$$
COOPERThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 7:09 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 36 min |
| Jun 23, 7:15 PM MDT | Special Weather Statement | BOU | Denver | 30 min |
| Jun 23, 7:30 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 17 min |
| Jun 23, 7:32 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 28 min |
| Jun 23, 7:52 PM MDT | Special Weather Statement | BOU | Denver | 23 min |
| Jun 23, 9:15 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 30 min |
| Jun 24, 3:36 PM MDT | Special Weather Statement | BOU | Elbert | 39 min |
| Jun 24, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver, Jefferson | 45 min |
| Jun 24, 5:08 PM MDT | Areal Flood Advisory | BOU | Adams, Arapahoe, Denver | 52 min |
| Jun 24, 5:09 PM MDT | Tornado Warning | BOU | Adams, Denver | 21 min |
| Jun 24, 5:22 PM MDT | Flash Flood Warning | BOU | Adams, Arapahoe, Denver | 113 min |
Nearby
Tornado Warnings in Colorado, 2015Every tornado warning in 2015Tornadoes in 2015
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.