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Welcome to the official Monday weather briefing for August 5, 2013. This forecast will cover the weather for the upcoming week. As always,
forecasts are subject to change, so please check our website for the latest forecast.
The weather Tuesday through Thursday look warm and dry. But a storm system moving from the south will allow for thunderstorms to be
possible Friday through the weekend. Temperatures will likely begin to cool closer to normal as well. In the longer term,
warmer than normal temperatures and above normal precipitation is expected.
To start things off, we have reached our climatologically warmest portion of the year. The average high temperature will start its slow
decline from here on out. However, this weeks temperatures aren’t going to follow the “average.”
This image is a graphical temperature and precipitation display for the next 7 days. The dotted red line is our average temperature. As
you can see from Spokane and Wenatchee’s solid red line, we are expected above normal temperatures through the week. The
temperatures will begin to get closer to normal this weekend into early next week.
Why will we be hot and dry for next couple of days? A ridge of high pressure will tend to deflect rain-making systems away from the
Inland Northwest. The exception may be over the higher terrain of the Idaho panhandle.
Isolated thunderstorms will be possible there, although chances are still very low.
As mentioned earlier, a storm system will slowly move up the coast by Friday, nearing the Cascades by Saturday, and then possible
retreating toward the west by Sunday. Chances for precipitation, including thunderstorms will increase during this time period over most
areas. We will be closely monitoring the potential for flash flooding with any
thunderstorm, especially over the eastern Cascade burn scars.
This is an image of the track the storm will take from Friday through Sunday. As you can see by the green shading, almost all areas of the Inland
Northwest will have chances for thunderstorms. It is possible that the storm system will move closer into the region, which would enhance our
chances for thunderstorms on Sunday. This will be monitored over the coming days, and the forecast will likely undergo some modification.
Looking into next week, it looks like temperatures will be on the warm side of normal, while precipitation chances looks to be above
average.
This forecast is issued by the Climate Prediction Center.
So in summary, after a couple of days with warm and mostly dry conditions, a storm system will bring increased chances for
precipitation, including thunderstorms this weekend. We will be closely monitoring flash flooding potential with any thunderstorm,
especially over the eastern Cascade burn scars. And warmer than normal temperatures with
above average precipitation chances are expected next week.
If you have any questions regarding this forecast, or would like to make suggestions, please send us an email at
nws.spokane@noaa.gov . Thank you for tuning into this Special Weather Briefing.