Alert archive / Colorado / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 68, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 16, 2012, 1:31 PM MDT for Jefferson County, Park County, Colorado. It was in force for 29 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 16, 2012, 1:31 PM MDT (19:31 UTC)
- Expired
- Jun 16, 2012, 2:00 PM MDT
- In force
- 29 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Jefferson County, CO, Park County, CO
The radar
The Denver radar (KFTG), 78 km from the middle of the area, began a volume at 19:34 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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.5 hours before the alert went out and 188 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
- 3 J/kg
- Mixed-layer CIN
- -402 J/kg
- Mixed-layer LCL
- 1050 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -70 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
097 WUUS55 KBOU 161931 SVRBOU COC059-093-162000- /O.NEW.KBOU.SV.W.0068.120616T1931Z-120616T2000Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DENVER CO 131 PM MDT SAT JUN 16 2012 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN PARK COUNTY IN CENTRAL COLORADO WEST CENTRAL JEFFERSON COUNTY IN NORTHEAST COLORADO * UNTIL 200 PM MDT * AT 131 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL... AND DAMAGING WINDS UP TO ABOUT 60 MPH. THIS STORM WAS LOCATED NEAR PINE JUNCTION...OR 30 MILES SOUTHWEST OF DENVER...MOVING EAST AT 15 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PINE JUNCTION...PINE GROVE...WELLINGTON LAKE...CONIFER...BUFFALO CREEK...BAILEY AND ASPEN PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN. && LAT...LON 3957 10525 3930 10526 3930 10553 3956 10549 TIME...MOT...LOC 1931Z 268DEG 12KT 3946 10539 WIND...HAIL 60MPH 1.00IN $$
2 follow-up statements
232 WWUS55 KBOU 161940 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 140 PM MDT SAT JUN 16 2012 COC059-093-162000- /O.CON.KBOU.SV.W.0068.000000T0000Z-120616T2000Z/ PARK CO-JEFFERSON CO- 140 PM MDT SAT JUN 16 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MDT FOR WEST CENTRAL JEFFERSON AND NORTHEASTERN PARK COUNTIES... AT 140 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING ONE INCH DIAMETER HAIL...AND DAMAGING WINDS UP TO ABOUT 60 MPH. THIS STORM WAS LOCATED NEAR PINE JUNCTION...OR 29 MILES SOUTHWEST OF DENVER...MOVING EAST AT 15 MPH. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PINE JUNCTION...PINE GROVE...WELLINGTON LAKE...CONIFER...BUFFALO CREEK...BAILEY AND ASPEN PARK. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN EXCESS OF 58 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN. && LAT...LON 3957 10525 3930 10526 3930 10553 3956 10549 TIME...MOT...LOC 1940Z 268DEG 12KT 3946 10538 WIND...HAIL 60MPH 1.00IN $$
707 WWUS55 KBOU 161955 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 155 PM MDT SAT JUN 16 2012 COC059-093-162006- /O.EXP.KBOU.SV.W.0068.000000T0000Z-120616T2000Z/ PARK CO-JEFFERSON CO- 155 PM MDT SAT JUN 16 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL JEFFERSON AND NORTHEASTERN PARK COUNTIES WILL EXPIRE AT 200 PM MDT... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE SEVERE WEATHER. LAT...LON 3957 10525 3930 10526 3930 10553 3956 10549 TIME...MOT...LOC 1956Z 268DEG 12KT 3946 10531 $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 6:16 PM MDT | Special Weather Statement | BOU | Lincoln | 29 min |
| Jun 15, 6:47 PM MDT | Special Weather Statement | BOU | Lincoln | 28 min |
| Jun 15, 6:50 PM MDT | Special Weather Statement | BOU | Lincoln | 25 min |
| Jun 15, 7:24 PM MDT | Special Weather Statement | BOU | Crowley | 36 min |
| Jun 15, 7:42 PM MDT | Special Weather Statement | BOU | Phillips | 33 min |
| Jun 16, 1:51 AM MDT | Special Weather Statement | BOU | Elbert | 54 min |
| Jun 16, 2:43 AM MDT | Special Weather Statement | BOU | Elbert | 62 min |
| Jun 16, 3:42 AM MDT | Special Weather Statement | BOU | Washington | 63 min |
| Jun 16, 3:58 AM MDT | Fire Weather Watch | BOU | Boulder, Broomfield, Clear Creek, Douglas, Gilpin, Grand and 6 more | 10 hr |
| Jun 16, 12:00 PM MDT | Special Weather Statement | BOU | Park | 30 min |
| Jun 16, 1:01 PM MDT | Special Weather Statement | BOU | Park | 29 min |
| Jun 16, 1:37 PM MDT | Special Weather Statement | BOU | Douglas | 23 min |
| Jun 16, 1:53 PM MDT | Areal Flood Advisory | BOU | Jefferson | 82 min |
| Jun 16, 2:02 PM MDT | Red Flag Warning | BOU | Boulder, Broomfield, Clear Creek, Douglas, Gilpin, Grand and 7 more | 30 hr |
| Jun 16, 2:04 PM MDT | Special Weather Statement | BOU | Douglas | 26 min |
| Jun 16, 2:28 PM MDT | Special Weather Statement | BOU | Douglas | 32 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2012Every severe thunderstorm warning in 2012
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.