Alert archive / Oklahoma / Special Weather Statements in 2018
Special Weather Statement, NWS Amarillo, TX
NWS Amarillo, TX issued this special weather statement at Jun 20, 2018, 1:07 AM CDT for Cimarron County, Oklahoma. It was in force for 53 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
- Jun 20, 2018, 1:07 AM CDT (06:07 UTC)
- Expired
- Jun 20, 2018, 2:00 AM CDT
- In force
- 53 min
- Issued by
- NWS Amarillo, TX
County Cimarron County, OK
The radar
The Amarillo radar (KAMA), 170 km from the middle of the area, began a volume at 06:09 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 nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 6.1 hours before the alert went out and 171 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
- 1503 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1903 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted.
052
WWUS84 KAMA 200607
SPSAMA
Special Weather Statement
National Weather Service Amarillo TX
107 AM CDT WED JUN 20 2018
OKZ001-002-200700-
Cimarron OK-Texas OK-
107 AM CDT WED JUN 20 2018
...SIGNIFICANT WEATHER ADVISORY FOR WESTERN TEXAS AND EASTERN
CIMARRON COUNTIES UNTIL 200 AM CDT...
At 107 AM CDT, Doppler radar was tracking a strong thunderstorm 8
miles northwest of Keyes, or 17 miles northeast of Boise City, moving
southeast at 25 mph.
Wind gusts of 50 to 55 mph will be possible with this storm.
Locations impacted include...
Keyes, Eva, Griggs and Sturgis.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take shelter in a sturdy building if threatening weather approaches.
&&
LAT...LON 3699 10177 3672 10172 3651 10194 3650 10216
3650 10240 3699 10250
TIME...MOT...LOC 0607Z 336DEG 23KT 3692 10232
$$
LGThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 4:54 AM CDT | Special Weather Statement | AMA | Collingsworth, Donley, Wheeler | 66 min |
| Jun 19, 8:13 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 77 min |
| Jun 19, 8:26 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 79 min |
| Jun 19, 9:24 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 63 min |
| Jun 19, 10:26 PM CDT | Special Weather Statement | AMA | Beaver | 49 min |
| Jun 19, 11:28 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 92 min |
| Jun 20, 12:49 AM CDT | Special Weather Statement | AMA | Cimarron | 56 min |
| Jun 20, 1:33 AM CDT | Special Weather Statement | AMA | Cimarron | 57 min |
Nearby
Special Weather Statements in Oklahoma, 2018Every special weather statement 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.