Alert archive / Colorado / Tornado Warnings in 2016
Tornado Warning 28, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Sep 3, 2016, 6:27 PM MDT for Washington County, Colorado. It was in force for 33 min. 3 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
- Sep 3, 2016, 6:27 PM MDT (00:27 UTC)
- Expired
- Sep 3, 2016, 7:00 PM MDT
- In force
- 33 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Washington County, CO
The radar
The Denver radar (KFTG), 116 km from the middle of the area, began a volume at 00:31 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 |
|---|---|---|---|
| Sep 3, 6:30 PM MDT | HAIL 2.5 | 7 Se Akron, CO | STRONG WIND AND HEAVY RAIN ALSO OBSERVED. |
| Sep 3, 6:40 PM MDT | HAIL 2 | 2 Ssw Akron, CO | STRONG WINDS ALSO REPORTED ALONG WITH TWO BRIEF FUNNEL CLOUDS. |
| Sep 3, 7:05 PM MDT | HAIL 3 | 11 Se Akron, CO | ROOF AND VEHICLE DAMAGE W/ 1.25 INCHES OF RAINFALL. |
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 00:00Z, 0.5 hours before the alert went out and 27 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
- 14 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 2768 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
868
WFUS55 KBOU 040027
TORBOU
COC121-040100-
/O.NEW.KBOU.TO.W.0028.160904T0027Z-160904T0100Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
627 PM MDT SAT SEP 3 2016
THE NATIONAL WEATHER SERVICE IN DENVER COLORADO HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL WASHINGTON COUNTY IN NORTHEASTERN COLORADO...
* UNTIL 700 PM MDT
* AT 626 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 5 MILES SOUTHWEST OF AKRON...MOVING EAST AT 10
MPH.
HAZARD...TORNADO.
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.
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 OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4006 10338 4021 10339 4024 10307 4001 10307
TIME...MOT...LOC 0026Z 271DEG 10KT 4013 10330
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MEIER1 follow-up statement
925
WWUS55 KBOU 040043
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
643 PM MDT SAT SEP 3 2016
COC121-040100-
/O.CON.KBOU.TO.W.0028.000000T0000Z-160904T0100Z/
WASHINGTON CO-
643 PM MDT SAT SEP 3 2016
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM MDT FOR CENTRAL
WASHINGTON COUNTY...
AT 642 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR AKRON...MOVING EAST AT 10 MPH.
HAZARD...TORNADO.
SOURCE...WEATHER SPOTTERS REPORTED A FUNNEL CLOUD.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR. TREE DAMAGE
IS LIKELY.
LOCATIONS IMPACTED INCLUDE...
AKRON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4006 10333 4017 10330 4020 10307 4001 10307
TIME...MOT...LOC 0042Z 271DEG 10KT 4013 10324
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MEIERThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 6:07 PM MDT | Special Weather Statement | BOU | Morgan | 38 min |
| Sep 3, 6:09 PM MDT | Special Weather Statement | BOU | Washington | 51 min |
| Sep 3, 6:18 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 42 min |
| Sep 3, 6:26 PM MDT | Tornado Warning | BOU | Washington | 34 min |
| Sep 3, 7:00 PM MDT | Tornado Warning | BOU | Washington | 27 min |
| Sep 3, 7:35 PM MDT | Special Weather Statement | BOU | Washington | 25 min |
| Sep 4, 2:10 AM MDT | Special Weather Statement | BOU | Sedgwick | 35 min |
| Sep 4, 4:05 PM MDT | Special Weather Statement | BOU | Broomfield | 40 min |
| Sep 4, 4:12 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 48 min |
| Sep 4, 4:28 PM MDT | Special Weather Statement | BOU | Weld | 47 min |
| Sep 4, 4:42 PM MDT | Severe Thunderstorm Warning | BOU | Phillips, Sedgwick | 29 min |
| Sep 4, 5:06 PM MDT | Special Weather Statement | BOU | Morgan | 39 min |
| Sep 4, 5:27 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Washington | 48 min |
| Sep 4, 5:36 PM MDT | Tornado Warning | BOU | Morgan, Washington | 15 min |
| Sep 4, 5:55 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Washington | 18 min |
Nearby
Tornado Warnings in Colorado, 2016Every tornado warning in 2016Tornadoes in 2016
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.