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the following is a special weather briefing from the National Weather
Service office in Spokane Washington produced Friday
august thirtieth 2013 taking a look at the weather for the next seven days
we're looking at some very nice weather for the weekend
dry and warm conditions will effect olive the
in the northwest with temperatures rising in the nineties and most value
locations by the time we get
Sunday will also see plenty of sunshine through the weekend as well
by the time we get the Labor Day things will become a little more cloudy as a
low pressure system begins to move toward the
Washington coast as it does we will increase the atmospheric moisture and
this will result in a slight chance of thunderstorms mainly over the mountains
that be mainly near the cascades and perhaps over the Idaho Panhandle
by the time we get to Tuesday and Friday that low pressure system drifts even farther
toward the coast in a result in a chance of thunderstorms
for most areas thunderstorms could be possible just about anywhere in the
Inland Northwest and could occur
either during the daytime or nighttime hours at this point there's a lot of
uncertainty in the forecast as to which locations will see the most
precipitation
at this point or what time it will see the precipitation and what makes this
setup fairly unusual is the atmosphere will be unusually moist but this time
year with
almost double the amount a normal atmospheric moisture expected throughout
much of the week
potential impacts with all that moisture coming in we could see some flooding
thunderstorms and showers which we see should be primarily quite wet
generally much wetter than we would see earlier in the summer when thunderstorm
bases are very high and
rainfall amounts could be like that's not be the situation this
setup. Areas which are most susceptible
to flooding would be near the burn scars along the Cascade crest area
and also urban areas which have plenty of asphalt
roads and parking lots where runoff could be difficult at times
will also see plenty of lightning in this pattern it could result in a few
wildfire
ignitions however the fact that the storms will contain as much rainfall is there
expected
we do not expect to see a widespread outbreak
of fires at this time also we could see wind gusts and some hail reports through
the week
as well taking a look at the atmospheric pattern
over the next couple days through the weekend we're going to have a large
ridge of high pressure
over all of Washington and Idaho which will bring us our warm temperatures
however
by the time we get into Monday and Friday up the upcoming week this low
pressure system which is currently
over the Gulf of Alaska well begin to drift slowly eastward with time and as
it does
it'll draw plenty of moisture up from the desert southwest
resulting in an increased chance of showers and thunderstorms
each day and by the time we get to the end the week it looks like we should see
a very good chance
of showers and thunderstorms across much of the Inland
Northwest this is a look at the potential precipitation amounts we could
see
over next week everyone in the Inland Northwest should get some rain
throughout the week it's just a question of how much will fall
thunderstorms could develop just about anywhere and will impact these totals
we could see considerably more and what this map is showing
however it looks like this point the heaviest rainfall amounts are expected
near the cascades were anywhere from one to two inches of rain could fall through
the week
also for North Idaho we are looking at the same thing
lighter rainfall amounts are expected over the Columbia Basin
and into the Lower Columbia Valley
where rainfall amounts could range anywhere from a quarter inch
to a half-inch of rain stay tuned for the latest information on this
developing weather situation either through our web page at weather.gov
slash Spokane you can like us on our Facebook page
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