Alert archive / Colorado / Tornado Warnings in 2016
Tornado Warning 23, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 17, 2016, 5:42 PM MDT for Weld 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
- Jul 17, 2016, 5:42 PM MDT (23:42 UTC)
- Expired
- Jul 17, 2016, 6:15 PM MDT
- In force
- 33 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 2.0 in
County Weld County, CO
The radar
The Cheyenne radar (KCYS), 97 km from the middle of the area, began a volume at 23:44 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 |
|---|---|---|---|
| Jul 17, 5:54 PM MDT | HAIL 1.75 | 9 N New Raymer, CO | |
| Jul 17, 6:00 PM MDT | HAIL 2 | 10 Ne New Raymer, CO | GOLF BALL TO 2 INCH HAIL |
| Jul 17, 6:20 PM MDT | TSTM WND GST 73 | 2 Nw Stoneham, 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, 11.7 hours before the alert went out and 104 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
- 212 J/kg
- Mixed-layer CIN
- -367 J/kg
- Mixed-layer LCL
- 2162 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
412
WFUS55 KBOU 172342
TORBOU
COC123-180015-
/O.NEW.KBOU.TO.W.0023.160717T2342Z-160718T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
542 PM MDT SUN JUL 17 2016
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN WELD COUNTY IN NORTHEASTERN COLORADO...
* UNTIL 615 PM MDT
* AT 542 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 8 MILES NORTH OF NEW RAYMER...OR 31 MILES
NORTH OF FORT MORGAN...MOVING SOUTHEAST AT 30 MPH.
HAZARD...TORNADO AND HAIL UP TO TWO INCHES IN DIAMETER.
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...
STONEHAM AND NEW RAYMER.
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 4085 10382 4064 10359 4052 10384 4053 10384
4075 10403
TIME...MOT...LOC 2342Z 329DEG 28KT 4072 10386
TORNADO...RADAR INDICATED
HAIL...2.00IN
$$
RPK1 follow-up statement
009
WWUS55 KBOU 172352
SVSBOU
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
552 PM MDT SUN JUL 17 2016
COC123-180015-
/O.CON.KBOU.TO.W.0023.000000T0000Z-160718T0015Z/
WELD CO-
552 PM MDT SUN JUL 17 2016
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM MDT FOR
NORTHEASTERN WELD COUNTY...
AT 551 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 4 MILES NORTH OF NEW RAYMER...OR 27 MILES NORTH OF FORT
MORGAN...MOVING SOUTHEAST AT 25 MPH.
HAZARD...TORNADO AND TENNIS BALL SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS...AND VEHICLES WILL OCCUR. TREE DAMAGE
IS LIKELY.
LOCATIONS IMPACTED INCLUDE...
STONEHAM AND NEW RAYMER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN
A MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4085 10382 4064 10359 4052 10384 4053 10384
4075 10403
TIME...MOT...LOC 2351Z 331DEG 22KT 4067 10383
TORNADO...RADAR INDICATED
HAIL...2.50IN
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 3:20 PM MDT | Special Weather Statement | BOU | Elbert | 25 min |
| Jul 17, 4:30 PM MDT | Special Weather Statement | BOU | Denver | 30 min |
| Jul 17, 4:33 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 27 min |
| Jul 17, 4:46 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 44 min |
| Jul 17, 5:23 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 52 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.