National Weather Service Raw Text Product

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NOUS44 KAMA 180109
PNSAMA
OKZ001>003-TXZ001>020-317-181315-

Public Information Statement
National Weather Service Amarillo TX
809 PM CDT Fri Jul 17 2020

...NWS DAMAGE SURVEY FOR 07/14/20 TORNADO EVENT...

.Overview...Record warm temperatures, a weak frontal boundary in 
the area and an upper level disturbance moving around the north 
side of a area of high pressure to the southwest led to the 
development of a storm complex which moved east across the 
northern Texas Panhandle on Tuesday evening, July 14th. A weak 
tornado developed briefly along the leading edge of a 
strengthening line of thunderstorms around 7 miles west-northwest
of Gruver. The tornado was on the ground for around 4 minutes in 
open country before dissipating.

.7 WNW Gruver...

Rating:                 EF-U
Estimated Peak Wind:    Unknown
Path Length /statute/:  1.34 miles
Path Width /maximum/:   50.0 yards
Fatalities:             0 
Injuries:               0

Start Date:             07/14/2020
Start Time:             08:02 PM CDT
Start Location:         7 WNW Gruver / Hansford County / TX
Start Lat/Lon:          36.298 / -101.5286

End Date:               07/14/2020
End Time:               08:06 PM CDT
End Location:           6 WNW Gruver / Hansford County / TX
End Lat/Lon:            36.2945 / -101.505

Survey Summary:
The tornado touched down in open country and while it appeared
weak, it encountered no damage indicators for a rating.
Confirmation of the touch down was based on picture evidence from 
a storm chaser and also local rancher in the area.

EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:

EF0...Weak......65 to 85 mph
EF1...Weak......86 to 110 mph
EF2...Strong....111 to 135 mph
EF3...Strong....136 to 165 mph
EF4...Violent...166 to 200 mph
EF5...Violent...>200 mph

NOTE:
The information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
Storm Data.

$$