Alert archive / Colorado / Tornado Warnings in 2021
Tornado Warning 40, NWS Goodland, KS
NWS Goodland, KS issued this tornado warning at Aug 19, 2021, 7:36 PM MDT for Yuma County, Colorado. It was in force for 24 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
- Aug 19, 2021, 7:36 PM MDT (01:36 UTC)
- Expired
- Aug 19, 2021, 8:00 PM MDT
- In force
- 24 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Yuma County, CO
The radar
The Goodland radar (KGLD), 116 km from the middle of the area, began a volume at 01:37 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 |
|---|---|---|---|
| Aug 19, 5:25 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.6 hours before the alert went out and 85 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
- 56 J/kg
- Mixed-layer CIN
- -210 J/kg
- Mixed-layer LCL
- 1497 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
135
WFUS53 KGLD 200136
TORGLD
COC125-200200-
/O.NEW.KGLD.TO.W.0040.210820T0136Z-210820T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Goodland KS
736 PM MDT Thu Aug 19 2021
The National Weather Service in Goodland has issued a
* Tornado Warning for...
North central Yuma County in northeastern Colorado...
* Until 800 PM MDT.
* At 735 PM MDT, a severe thunderstorm capable of producing a tornado
was located 11 miles northeast of Eckley, or 15 miles northwest of
Wray, moving northeast at 25 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 Yuma County.
This includes Highway 385 between mile markers 261 and 263.
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.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4020 10243 4025 10249 4039 10232 4032 10223
TIME...MOT...LOC 0135Z 226DEG 24KT 4027 10239
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
KMK/JRM2 follow-up statements
830
WWUS53 KGLD 200144
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
744 PM MDT Thu Aug 19 2021
COC125-200200-
/O.CON.KGLD.TO.W.0040.000000T0000Z-210820T0200Z/
Yuma CO-
744 PM MDT Thu Aug 19 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM MDT FOR NORTH
CENTRAL YUMA COUNTY...
At 744 PM MDT, a severe thunderstorm capable of producing a tornado
was located 16 miles northeast of Eckley, or 17 miles north of Wray,
moving northeast at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
north central Yuma County.
This includes Highway 385 between mile markers 261 and 263.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4022 10240 4026 10243 4039 10232 4032 10223
TIME...MOT...LOC 0144Z 226DEG 24KT 4031 10233
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
KMK/JRM684
WWUS53 KGLD 200155
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
755 PM MDT Thu Aug 19 2021
COC125-200204-
/O.EXP.KGLD.TO.W.0040.000000T0000Z-210820T0200Z/
Yuma CO-
755 PM MDT Thu Aug 19 2021
...THE TORNADO WARNING FOR NORTH CENTRAL YUMA COUNTY WILL EXPIRE AT
800 PM MDT...
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and
a Severe Thunderstorm Warning remains in effect for the area.
A Tornado Watch remains in effect until 1100 PM MDT for northeastern
Colorado.
LAT...LON 4022 10240 4026 10243 4039 10232 4032 10223
TIME...MOT...LOC 0154Z 226DEG 24KT 4035 10228
$$
KMK/JRMThe office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 6:28 PM MDT | Special Weather Statement | GLD | Phillips | 47 min |
| Aug 19, 6:31 PM MDT | Special Weather Statement | GLD | Yuma | 44 min |
| Aug 19, 6:46 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 44 min |
| Aug 19, 7:17 PM MDT | Special Weather Statement | GLD | Phillips | 28 min |
| Aug 19, 7:31 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 59 min |
| Aug 19, 7:50 PM MDT | Flash Flood Warning | GLD | Yuma | 5 hr |
| Aug 19, 8:08 PM MDT | Tornado Warning | GLD | Yuma | 22 min |
| Aug 19, 8:44 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 31 min |
| Aug 19, 9:14 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 46 min |
| Aug 19, 9:49 PM MDT | Special Weather Statement | GLD | Yuma | 26 min |
| Aug 19, 10:48 PM MDT | Special Weather Statement | GLD | Phillips | 42 min |
| Aug 19, 10:51 PM MDT | Special Weather Statement | GLD | Yuma | 39 min |
| Aug 20, 12:31 AM MDT | Areal Flood Warning | GLD | Yuma | 6 hr |
| Aug 20, 5:40 AM MDT | Special Weather Statement | GLD | Phillips | 35 min |
Nearby
Tornado Warnings in Colorado, 2021Every tornado warning in 2021Tornadoes in 2021
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.