Special Weather Statement
Issued by NWS Grand Junction, CO

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WWUS85 KGJT 200611
SPSGJT

Special Weather Statement
National Weather Service Grand Junction CO
1211 AM MDT THU JUL 20 2017

COZ021-UTZ022-200715-
Four Corners/Upper Dolores River CO-Southeast Utah UT-
1211 AM MDT THU JUL 20 2017

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN MONTEZUMA AND
SOUTHEASTERN SAN JUAN COUNTIES UNTIL 115 AM MDT...

At 1208 AM MDT, Doppler radar and satellite was tracking strong
thunderstorms along a line extending from near Twin Falls to 12
miles north of Shiprock.
Movement was northwest at 15 mph.

Frequent cloud to ground lightning and winds in excess of 40 mph
will be possible with these storms.  Very heavy rainfall is also
possible with this storm which could lead to localized flash
flooding.

Locations impacted include...
Aneth and the Four Corners area southwest of Towaoc in southwest
Colorado and southeast of Aneth and Montezuma Creek in southeast
Utah.

This includes the following highways...
 U.S. Highway 491 in Colorado between mile markers 1 and 6.
 U.S. Highway 160 in Colorado between mile markers 1 and 19.
 Utah 162 between mile markers 25 and 31.
 Colorado 41 between mile markers 1 and 9.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall is also occurring with these storms, and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

Persons in campgrounds should consider seeking sturdy shelter until
these storms pass.

&&

LAT...LON 3700 10935 3711 10945 3729 10886 3700 10865
TIME...MOT...LOC 0608Z 138DEG 13KT 3685 10914 3697 10875

$$

MDA



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