Alert archive / Oklahoma / Tornado Warnings in 2021
Tornado Warning 42, NWS Amarillo, TX
NWS Amarillo, TX issued this tornado warning at Oct 12, 2021, 8:35 PM CDT for Texas County, Oklahoma. It was in force for 25 min. 1 report 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
- Oct 12, 2021, 8:35 PM CDT (01:35 UTC)
- Expired
- Oct 12, 2021, 9:00 PM CDT
- In force
- 25 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
County Texas County, OK
The radar
The Amarillo radar (KAMA), 166 km from the middle of the area, began a volume at 01:38 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 |
|---|---|---|---|
| Oct 12, 8:58 PM CDT | TSTM WND GST 67 | 1 Wsw Guymon, OK | ASOS STATION KGUY GUYMON. |
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 |
|---|---|---|---|
| Oct 12, 5:34 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 1.6 hours before the alert went out and 166 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
- 165 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 2910 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
480
WFUS54 KAMA 130135
TORAMA
OKC139-130200-
/O.NEW.KAMA.TO.W.0042.211013T0135Z-211013T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Amarillo TX
835 PM CDT Tue Oct 12 2021
The National Weather Service in Amarillo has issued a
* Tornado Warning for...
Central Texas County in the Panhandle of Oklahoma...
* Until 900 PM CDT.
* At 835 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Guymon, moving northeast 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...
Guymon and Optima.
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 3661 10158 3671 10164 3691 10136 3672 10117
TIME...MOT...LOC 0135Z 238DEG 27KT 3669 10153
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
$$
Ward1 follow-up statement
377
WWUS54 KAMA 130146
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
846 PM CDT Tue Oct 12 2021
OKC139-130200-
/O.CON.KAMA.TO.W.0042.000000T0000Z-211013T0200Z/
Texas OK-
846 PM CDT Tue Oct 12 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR CENTRAL
TEXAS COUNTY...
At 846 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Guymon, moving northeast at 30 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Guymon and Optima.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 3663 10151 3674 10156 3691 10136 3672 10117
TIME...MOT...LOC 0146Z 238DEG 27KT 3674 10144
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75IN
$$
WardThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 7:06 PM CDT | Special Weather Statement | AMA | Cimarron, Texas | 24 min |
| Oct 12, 7:57 PM CDT | Severe Thunderstorm Warning | AMA | Cimarron, Texas | 63 min |
| Oct 12, 8:06 PM CDT | Tornado Warning | AMA | Texas | 24 min |
| Oct 12, 8:28 PM CDT | Tornado Warning | AMA | Texas | 32 min |
| Oct 12, 8:52 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 53 min |
| Oct 12, 9:01 PM CDT | Tornado Warning | AMA | Texas | 44 min |
| Oct 12, 9:12 PM CDT | Tornado Warning | AMA | Texas | 33 min |
| Oct 12, 9:34 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 56 min |
| Oct 12, 9:47 PM CDT | Tornado Warning | AMA | Beaver, Texas | 28 min |
| Oct 12, 9:51 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 54 min |
| Oct 12, 11:00 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 60 min |
| Oct 12, 11:59 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 61 min |
Nearby
Tornado Warnings in Oklahoma, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.