Alert archive / Colorado / Tornado Warnings in 2019
Tornado Warning 39, NWS Goodland, KS
NWS Goodland, KS issued this tornado warning at Aug 11, 2019, 3:55 PM MDT for Yuma County, Colorado. It was in force for 50 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
- Aug 11, 2019, 3:55 PM MDT (21:55 UTC)
- Expired
- Aug 11, 2019, 4:45 PM MDT
- In force
- 50 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 2.5 in
County Yuma County, CO
The radar
The Goodland radar (KGLD), 119 km from the middle of the area, began a volume at 21:56 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 |
|---|---|---|---|
| Aug 11, 4:04 PM MDT | TORNADO | 7 S Clarkville, CO | PUBLIC REPORTED POSSIBLE TORNADO ON THE GROUND. |
| Aug 11, 4:20 PM MDT | TORNADO | 6 Nw Yuma, CO | PUBLIC REPORTED A TORNADO VIA TWITTER WITH A PICTURE. |
| Aug 11, 4:53 PM MDT | HAIL 2.5 | 9 N Yuma, CO | TRAINED SPOTTER REPORTED 2.5 INCH HAIL 9 MILES N OF YUMA. |
| Aug 11, 4:55 PM MDT | HAIL 2.75 | 9 N Yuma, CO | HAIL RANGED FROM GOLF BALL TO BASEBALL SIZE. SIGNIFICANT DAMAGE DONE TO WINDSHIELD. |
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 |
|---|---|---|---|
| Aug 11, 2:46 PM MDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.9 hours before the alert went out and 64 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
- 6 J/kg
- Mixed-layer CIN
- -342 J/kg
- Mixed-layer LCL
- 1668 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- -68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
880
WFUS53 KGLD 112155
TORGLD
COC125-112245-
/O.NEW.KGLD.TO.W.0039.190811T2155Z-190811T2245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
355 PM MDT Sun Aug 11 2019
The National Weather Service in Goodland has issued a
* Tornado Warning for...
Northwestern Yuma County in northeastern Colorado...
* Until 445 PM MDT.
* At 355 PM MDT, a severe thunderstorm capable of producing a tornado
was located 6 miles northwest of Yuma, moving east at 20 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...
Yuma.
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 4029 10243 3998 10256 4006 10279 4029 10279
TIME...MOT...LOC 2155Z 278DEG 17KT 4020 10280
TORNADO...RADAR INDICATED
HAIL...2.50IN
$$
Buller2 follow-up statements
946
WWUS53 KGLD 112210
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
410 PM MDT Sun Aug 11 2019
COC125-112245-
/O.CON.KGLD.TO.W.0039.000000T0000Z-190811T2245Z/
Yuma CO-
410 PM MDT Sun Aug 11 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM MDT FOR
NORTHWESTERN YUMA COUNTY...
At 410 PM MDT, a confirmed tornado was located 6 miles east of Otis,
or 6 miles northwest of Yuma, moving east at 15 mph.
HAZARD...Damaging tornado and tennis ball size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Yuma.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4029 10243 3998 10256 4006 10279 4029 10279
TIME...MOT...LOC 2210Z 265DEG 13KT 4017 10284
TORNADO...OBSERVED
HAIL...2.50IN
$$
Buller353
WWUS53 KGLD 112230
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
430 PM MDT Sun Aug 11 2019
COC125-112245-
/O.CON.KGLD.TO.W.0039.000000T0000Z-190811T2245Z/
Yuma CO-
430 PM MDT Sun Aug 11 2019
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM MDT FOR
NORTHWESTERN YUMA COUNTY...
At 429 PM MDT, a confirmed tornado was located 5 miles north of Yuma,
moving east at 15 mph.
HAZARD...Damaging tornado and tennis ball size hail.
SOURCE...Radar confirmed tornado.
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...
Yuma.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. 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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4029 10243 4008 10252 4013 10279 4029 10279
TIME...MOT...LOC 2229Z 265DEG 13KT 4021 10275
TORNADO...OBSERVED
HAIL...2.50IN
$$
BullerThe office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 7:55 PM MDT | Special Weather Statement | GLD | Cheyenne | 35 min |
| Aug 11, 3:42 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 63 min |
| Aug 11, 4:39 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 51 min |
| Aug 11, 4:44 PM MDT | Tornado Warning | GLD | Yuma | 31 min |
| Aug 11, 5:12 PM MDT | Tornado Warning | GLD | Yuma | 48 min |
| Aug 11, 5:30 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 25 min |
| Aug 11, 5:48 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 22 min |
| Aug 11, 5:52 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 53 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.