Alert archive / Colorado / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 21, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 24, 2016, 2:05 PM MDT for Arapahoe County, Denver County, Colorado. It was in force for 25 min. 4 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 24, 2016, 2:05 PM MDT (20:05 UTC)
- Expired
- May 24, 2016, 2:30 PM MDT
- In force
- 25 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Arapahoe County, CO, Denver County, CO
The radar
The Denver radar (KFTG), 24 km from the middle of the area, began a volume at 20:05 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 24, 2:13 PM MDT | HAIL 0.88 | 5 Sse Denver, CO | PLOWABLE HAIL |
| May 24, 2:15 PM MDT | HAIL 0.75 | 3 Se Denver, CO | PLOWABLE HAIL |
| May 24, 2:15 PM MDT | HAIL 1 | 3 Se Denver, CO | |
| May 24, 2:22 PM MDT | HAIL 1.75 | 6 Sse Denver, 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 24, 12:45 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 8.1 hours before the alert went out and 136 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1378 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
460
WUUS55 KBOU 242005
SVRBOU
COC005-031-242030-
/O.NEW.KBOU.SV.W.0021.160524T2005Z-160524T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
205 PM MDT TUE MAY 24 2016
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN ARAPAHOE COUNTY IN NORTHEASTERN COLORADO...
SOUTHERN DENVER COUNTY IN NORTHEASTERN COLORADO...
* UNTIL 230 PM MDT
* AT 204 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ENGLEWOOD...
OR 6 MILES SOUTH OF DENVER...MOVING NORTHEAST AT 25 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
* LOCATIONS IMPACTED INCLUDE...
DENVER...AURORA...NORTHERN CENTENNIAL...NORTHEASTERN LITTLETON...
ENGLEWOOD...GREENWOOD VILLAGE...SHERIDAN...
ARAPAHOE PARK AND BUCKLEY AFB.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT FOR NORTHEASTERN
COLORADO.
LAT...LON 3968 10503 3974 10485 3974 10476 3977 10475
3977 10476 3978 10474 3977 10474 3974 10475
3974 10468 3961 10461 3958 10501
TIME...MOT...LOC 2004Z 236DEG 21KT 3963 10495
HAIL...1.00IN
WIND...<50MPH
$$
DANKERS2 follow-up statements
489
WWUS55 KBOU 242017
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
217 PM MDT TUE MAY 24 2016
COC005-031-242030-
/O.CON.KBOU.SV.W.0021.000000T0000Z-160524T2030Z/
ARAPAHOE CO-DENVER CO-
217 PM MDT TUE MAY 24 2016
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM MDT
FOR WESTERN ARAPAHOE AND SOUTHWESTERN DENVER COUNTIES...
AT 215 PM MDT...A SEVERE THUNDERSTORM WAS LOCATED OVER SOUTHERN
DENVER...MOVING NORTHEAST AT 20 MPH.
HAZARD...HALF DOLLAR SIZE HAIL.
SOURCE...SPOTTERS HAVE BEEN REPORTING DIME SIZED HAIL NEAR THE
UNIVERSITY OF DENVER CAMPUS AND ACCUMULATING HAIL ACROSS
SOUTHERN DENVER AND SOUTHERN PARTS OF AURORA.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
LOCATIONS IMPACTED INCLUDE...
DENVER...AURORA...NORTHERN CENTENNIAL...NORTHEASTERN LITTLETON...
ENGLEWOOD...GREENWOOD VILLAGE...SHERIDAN...ARAPAHOE PARK AND BUCKLEY
AFB.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT FOR NORTHEASTERN
COLORADO.
LAT...LON 3968 10503 3974 10485 3974 10476 3977 10475
3977 10476 3978 10474 3977 10474 3974 10475
3974 10468 3961 10461 3958 10501
TIME...MOT...LOC 2015Z 227DEG 19KT 3968 10492
HAIL...1.25IN
WIND...<50MPH
$$
DANKERS291
WWUS55 KBOU 242027
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
227 PM MDT TUE MAY 24 2016
COC005-031-242037-
/O.EXP.KBOU.SV.W.0021.000000T0000Z-160524T2030Z/
ARAPAHOE CO-DENVER CO-
227 PM MDT TUE MAY 24 2016
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ARAPAHOE AND
SOUTHWESTERN DENVER COUNTIES WILL EXPIRE AT 230 PM MDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS
AND EXITED THE WARNED AREA. THEREFORE THE WARNING WILL BE ALLOWED TO
EXPIRE. HOWEVER SMALL HAIL AND GUSTY WINDS ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM MDT FOR NORTHEASTERN
COLORADO.
LAT...LON 3968 10503 3974 10485 3974 10476 3977 10475
3977 10476 3978 10474 3977 10474 3974 10475
3974 10468 3961 10461 3958 10501
TIME...MOT...LOC 2026Z 236DEG 21KT 3968 10492
$$
DANKERSThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 1:30 AM MDT | Severe Thunderstorm Warning | BOU | Washington | 30 min |
| May 24, 1:30 PM MDT | Severe Thunderstorm Warning | BOU | Jefferson | 30 min |
| May 24, 1:59 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Broomfield, Jefferson | 31 min |
| May 24, 2:30 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Broomfield, Weld | 45 min |
| May 24, 2:43 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 47 min |
| May 24, 3:58 PM MDT | Severe Thunderstorm Warning | BOU | Adams | 32 min |
| May 24, 4:36 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 24 min |
| May 24, 4:58 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 32 min |
| May 24, 5:18 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Washington | 27 min |
| May 24, 5:31 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan | 29 min |
| May 24, 5:44 PM MDT | Tornado Warning | BOU | Adams, Morgan | 31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.