Waterville Plateau

 Severe Thunderstorm Warning  Statement as of 4:43 PM PDT on July 23, 2014


... A Severe Thunderstorm Warning remains in effect until 515 PM PDT
for western Lincoln... northeastern Douglas... southern Ferry...
southeastern Okanogan... western Stevens and northeastern Grant
counties...

At 443 PM PDT... the public reported a line of severe thunderstorms
producing destructive winds in excess of 70 mph. These storms were
located along a line extending from 15 miles northeast of Bridgeport
to 25 miles southeast of Nespelem community to 8 miles southwest of
Davenport... moving northeast at 50 mph.

Locations impacted include...
Omak... north Omak... Nespelem community... Lincoln... Coulee Dam... Grand
Coulee... Electric City... Wilbur... Almira... Riverside... Elmer City...
Nespelem... Creston... Telford... Disautel... Coffeepot Lake... Govan...
Bagdad Junction... Twin Lakes and Spring Canyon campground.

Precautionary/preparedness actions...

Severe thunderstorms produce damaging winds... destructive hail...
deadly lightning and very heavy rain. For your protection move to an
interior room on the lowest floor of your home or business. Heavy
rains flood roads quickly so do not drive into areas where water
covers the Road.

This is an extremely dangerous situation with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move immediately to a safe shelter or
to an interior room on the lowest floor of your home or business.
These storms have the potential to cause serious injury and
significant property damage.

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


Lat... Lon 4827 11824 4822 11818 4815 11820 4813 11825
      4807 11823 4804 11828 4805 11836 4802 11840
      4797 11834 4789 11834 4794 11821 4736 11840
      4771 11897 4784 11934 4855 11955
time... Mot... loc 2343z 221deg 43kt 4809 11936 4787 11877 4757 11828


Sb



 Special Statement  Statement as of 4:09 PM PDT on July 23, 2014


... A line of strong thunderstorms will affect the western Columbia
Basin and eastern Okanogan County along with Ferry County...

At 407 PM PDT... a line of strong thunderstorms was along a line
extending from 7 miles northwest of Chelan to 26 miles north of
Davenport... and moving north at 40 mph.

Wind gusts of 50 to 57 mph are possible with these storms. This
will be followed by heavy rainfall and potential hail. These storms
may intensify.

Locations impacted include...
Omak... Okanogan... Bridgeport... Brewster... Oroville... Sherman Pass...
north Omak... Nespelem community... Lincoln... Ferry... Coulee Dam...
Republic... Tonasket... Grand Coulee... Electric City... Pateros...
Riverside... Elmer City... Nespelem and Monse.

These storms may intensify... so be certain to monitor local radio and
TV stations... as well as local cable TV outlets... for additional
information and possible warnings from the National Weather Service.

Lat... Lon 4900 11832 4852 11820 4779 11841 4784 11987
      4796 11981 4797 12007 4801 12008 4819 11981
      4829 11978 4837 11969 4849 11962 4862 11958
      4876 11959 4891 11968 4900 11964
time... Mot... loc 2307z 184deg 67kt 4795 12011 4801 11836


Sb

409 PM PDT Wed Jul 23 2014

... A line of strong thunderstorms will affect the western Columbia
Basin and eastern Okanogan County along with Ferry County...

At 407 PM PDT... a line of strong thunderstorms was along a line
extending from 7 miles northwest of Chelan to 26 miles north of
Davenport... and moving north at 40 mph.

Wind gusts of 50 to 57 mph are possible with these storms. This
will be followed by heavy rainfall and potential hail. These storms
may intensify.

Locations impacted include...
Omak... Okanogan... Bridgeport... Brewster... Oroville... Sherman Pass...
north Omak... Nespelem community... Lincoln... Ferry... Coulee Dam...
Republic... Tonasket... Grand Coulee... Electric City... Pateros...
Riverside... Elmer City... Nespelem and Monse.

These storms may intensify... so be certain to monitor local radio and
TV stations... as well as local cable TV outlets... for additional
information and possible warnings from the National Weather Service.

Lat... Lon 4900 11832 4852 11820 4779 11841 4784 11987
      4796 11981 4797 12007 4801 12008 4819 11981
      4829 11978 4837 11969 4849 11962 4862 11958
      4876 11959 4891 11968 4900 11964
time... Mot... loc 2307z 184deg 67kt 4795 12011 4801 11836


Sb



 Record Report  Statement as of 8:45 am PDT on July 23, 2014


The precipitation at Asotin for the 24 hours ending at 700 am on
July 23rd was 0.33 inches. This sets the record for the most
precipitation for this period. The previous record of 0.26 inches
was set in 1993. Records have been kept at this site since 1976.



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