Alert archive / Colorado / Tornado Warnings in 2019
Tornado Warning 13, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 27, 2019, 4:00 PM MDT for Weld County, Colorado. It was in force for 15 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 27, 2019, 4:00 PM MDT (22:00 UTC)
- Expired
- May 27, 2019, 4:15 PM MDT
- In force
- 15 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Weld County, CO
The radar
The Cheyenne radar (KCYS), 39 km from the middle of the area, began a volume at 22:00 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 27, 12:56 PM MDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 10.0 hours before the alert went out and 158 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
- 1644 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
176
WFUS55 KBOU 272200
TORBOU
COC123-272215-
/O.NEW.KBOU.TO.W.0013.190527T2200Z-190527T2215Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
400 PM MDT Mon May 27 2019
The National Weather Service in Denver Colorado has issued a
* Tornado Warning for...
North central Weld County in northeastern Colorado...
* Until 415 PM MDT.
* At 359 PM MDT, a severe thunderstorm capable of producing a tornado
was located 10 miles east of Rockport, or 22 miles southeast of
Cheyenne, moving northeast at 15 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.
* This tornadic thunderstorm will remain over mainly rural areas of
north central Weld County.
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 4078 10460 4086 10470 4094 10458 4084 10446
TIME...MOT...LOC 2159Z 233DEG 14KT 4085 10461
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
RPK1 follow-up statement
823
WWUS55 KBOU 272212
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
412 PM MDT Mon May 27 2019
COC123-272222-
/O.EXP.KBOU.TO.W.0013.000000T0000Z-190527T2215Z/
Weld CO-
412 PM MDT Mon May 27 2019
...THE TORNADO WARNING FOR NORTH CENTRAL WELD COUNTY WILL EXPIRE AT
415 PM MDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 900 PM MDT for northeastern
Colorado.
LAT...LON 4078 10460 4086 10470 4094 10458 4084 10446
TIME...MOT...LOC 2212Z 233DEG 14KT 4088 10456
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 6:10 PM MDT | Tornado Warning | BOU | Weld | 21 min |
| May 26, 6:13 PM MDT | Tornado Warning | BOU | Lincoln | 32 min |
| May 26, 6:41 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 49 min |
| May 27, 4:36 AM MDT | Winter Storm Watch | BOU | Boulder, Grand, Jackson, Larimer | 10 hr |
| May 27, 12:50 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe | 40 min |
| May 27, 1:28 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Weld | 47 min |
| May 27, 1:42 PM MDT | Tornado Warning | BOU | Adams | 33 min |
| May 27, 2:00 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 45 min |
| May 27, 2:41 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Morgan, Weld | 49 min |
| May 27, 3:01 PM MDT | Winter Storm Warning | BOU | Boulder, Grand, Jackson, Larimer | 33 hr |
| May 27, 3:01 PM MDT | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 2 more | 33 hr |
| May 27, 3:03 PM MDT | Tornado Warning | BOU | Logan, Morgan, Weld | 27 min |
| May 27, 3:30 PM MDT | Tornado Warning | BOU | Logan | 30 min |
| May 27, 3:40 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 35 min |
| May 27, 3:59 PM MDT | Tornado Warning | BOU | Logan | 31 min |
| May 27, 4:28 PM MDT | Tornado Warning | BOU | Logan, Sedgwick | 47 min |
| May 27, 4:49 PM MDT | Tornado Warning | BOU | Adams, Weld | 26 min |
| May 27, 4:55 PM MDT | Areal Flood Advisory | BOU | Logan, Sedgwick | 65 min |
| May 27, 4:55 PM MDT | Tornado Warning | BOU | Logan, Phillips, Sedgwick | 35 min |
| May 27, 4:58 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 47 min |
| May 27, 5:26 PM MDT | Tornado Warning | BOU | Sedgwick | 32 min |
| May 27, 5:40 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 50 min |
| May 27, 5:52 PM MDT | Flash Flood Warning | BOU | Logan | 83 min |
Nearby
Tornado Warnings in Colorado, 2019Every tornado warning in 2019Tornadoes in 2019
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.