Alert archive / Colorado / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 9, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 7, 2016, 2:35 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 40 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
- May 7, 2016, 2:35 PM MDT (20:35 UTC)
- Expired
- May 7, 2016, 3:15 PM MDT
- In force
- 40 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Adams County, CO, Arapahoe County, CO
The radar
The Denver radar (KFTG), 49 km from the middle of the area, began a volume at 20:38 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 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, 12:31 PM MDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 8.6 hours before the alert went out and 66 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
- 5 J/kg
- Mixed-layer CIN
- -219 J/kg
- Mixed-layer LCL
- 776 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
717
WUUS55 KBOU 072035
SVRBOU
COC001-005-072115-
/O.NEW.KBOU.SV.W.0009.160507T2035Z-160507T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
235 PM MDT SAT MAY 7 2016
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN ARAPAHOE COUNTY IN NORTHEASTERN COLORADO...
EASTERN ADAMS COUNTY IN NORTHEASTERN COLORADO...
* UNTIL 315 PM MDT
* AT 235 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED OVER DEER TRAIL...
OR 32 MILES NORTHWEST OF LIMON...MOVING NORTHEAST AT 40 MPH.
HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL
DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT
WIND DAMAGE TO ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
DEER TRAIL...BYERS...LEADER AND SHAMROCK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMAIN ALERT FOR A POSSIBLE TORNADO! TORNADOES CAN DEVELOP QUICKLY
FROM SEVERE THUNDERSTORMS. IF YOU SPOT A TORNADO GO AT ONCE INTO THE
BASEMENT OR SMALL CENTRAL ROOM IN A STURDY STRUCTURE.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM MDT FOR NORTHEASTERN
COLORADO.
LAT...LON 3957 10395 3970 10426 3999 10403 3985 10371
TIME...MOT...LOC 2035Z 205DEG 33KT 3964 10407
TORNADO...POSSIBLE
HAIL...1.75IN
WIND...60MPH
$$
RPK1 follow-up statement
798
WWUS55 KBOU 072113
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
313 PM MDT SAT MAY 7 2016
COC001-005-072123-
/O.EXP.KBOU.SV.W.0009.000000T0000Z-160507T2115Z/
ARAPAHOE CO-ADAMS CO-
313 PM MDT SAT MAY 7 2016
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN ARAPAHOE AND EASTERN
ADAMS COUNTIES WILL EXPIRE AT 315 PM MDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 700 PM MDT FOR NORTHEASTERN
COLORADO.
LAT...LON 3957 10395 3970 10426 3999 10403 3985 10371
TIME...MOT...LOC 2112Z 205DEG 33KT 3964 10407
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 6:40 PM MDT | Special Weather Statement | BOU | Clear Creek | 50 min |
| May 7, 11:36 AM MDT | Special Weather Statement | BOU | Jackson | 24 min |
| May 7, 12:41 PM MDT | Special Weather Statement | BOU | Douglas | 34 min |
| May 7, 12:55 PM MDT | Tornado Warning | BOU | Elbert | 22 min |
| May 7, 1:14 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert | 31 min |
| May 7, 1:29 PM MDT | Tornado Warning | BOU | Arapahoe, Elbert | 16 min |
| May 7, 1:43 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 32 min |
| May 7, 2:08 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert | 52 min |
| May 7, 2:10 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 35 min |
| May 7, 2:14 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 31 min |
| May 7, 2:17 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 28 min |
| May 7, 2:31 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 29 min |
| May 7, 2:46 PM MDT | Tornado Warning | BOU | Morgan, Weld | 29 min |
| May 7, 3:03 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 27 min |
| May 7, 3:12 PM MDT | Tornado Warning | BOU | Morgan, Weld | 33 min |
| May 7, 3:34 PM MDT | Tornado Warning | BOU | Morgan | 26 min |
| May 7, 3:36 PM MDT | Tornado Warning | BOU | Weld | 24 min |
| May 7, 3:54 PM MDT | Tornado Warning | BOU | Weld | 36 min |
| May 7, 3:58 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 32 min |
| May 7, 4:39 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 36 min |
| May 7, 4:47 PM MDT | Areal Flood Advisory | BOU | Adams, Morgan, Washington | 3 hr |
| May 7, 5:17 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 28 min |
| May 7, 5:44 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 31 min |
| May 7, 5:54 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 36 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2016Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.