Alert archive / Colorado / Tornado Warnings in 2018
Tornado Warning 5, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 27, 2018, 4:37 PM MDT for Morgan County, Colorado. It was in force for 23 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, 2018, 4:37 PM MDT (22:37 UTC)
- Expired
- May 27, 2018, 5:00 PM MDT
- In force
- 23 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
County Morgan County, CO
The radar
The Denver radar (KFTG), 109 km from the middle of the area, began a volume at 22:36 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, 1:13 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 10.6 hours before the alert went out and 67 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
- 4365 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
155
WFUS55 KBOU 272237
TORBOU
COC087-272300-
/O.NEW.KBOU.TO.W.0005.180527T2237Z-180527T2300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Denver CO
437 PM MDT SUN MAY 27 2018
The National Weather Service in Denver Colorado has issued a
* Tornado Warning for...
Northeastern Morgan County in northeastern Colorado...
* Until 500 PM MDT.
* At 437 PM MDT, a severe thunderstorm capable of producing a tornado
was located 4 miles northwest of Snyder, or 11 miles northeast of
Fort Morgan, moving north at 25 mph.
HAZARD...Tornado and golf 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...
Hillrose and Snyder.
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 4031 10348 4031 10371 4052 10369 4053 10356
4052 10347
TIME...MOT...LOC 2237Z 176DEG 24KT 4038 10363
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
RPK1 follow-up statement
378
WWUS55 KBOU 272246
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
446 PM MDT SUN MAY 27 2018
COC087-272300-
/O.CON.KBOU.TO.W.0005.000000T0000Z-180527T2300Z/
Morgan CO-
446 PM MDT SUN MAY 27 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM MDT FOR
NORTHEASTERN MORGAN COUNTY...
At 446 PM MDT, a severe thunderstorm capable of producing a tornado
was located 4 miles east of Antelope Springs, or 14 miles northeast
of Fort Morgan, moving north at 30 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Hillrose and Snyder.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4031 10348 4031 10371 4052 10369 4053 10356
4052 10347
TIME...MOT...LOC 2246Z 176DEG 24KT 4044 10364
TORNADO...RADAR INDICATED
HAIL...1.75IN
$$
RPKThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 12:27 PM MDT | Special Weather Statement | BOU | Larimer | 33 min |
| May 27, 1:45 PM MDT | Tornado Warning | BOU | Adams, Weld | 30 min |
| May 27, 2:14 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 31 min |
| May 27, 2:23 PM MDT | Severe Thunderstorm Warning | BOU | Phillips | 50 min |
| May 27, 2:44 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 31 min |
| May 27, 2:47 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 31 min |
| May 27, 3:06 PM MDT | Tornado Warning | BOU | Morgan, Weld | 24 min |
| May 27, 3:36 PM MDT | Special Weather Statement | BOU | Lincoln | 24 min |
| May 27, 4:20 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 40 min |
| May 27, 4:28 PM MDT | Tornado Warning | BOU | Morgan | 17 min |
| May 27, 4:58 PM MDT | Tornado Warning | BOU | Morgan, Weld | 18 min |
| May 27, 5:21 PM MDT | Special Weather Statement | BOU | Logan | 39 min |
| May 27, 5:38 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 52 min |
Nearby
Tornado Warnings in Colorado, 2018Every tornado warning in 2018Tornadoes in 2018
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.