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Area forecast discussion 
National Weather Service Spokane Washington
436 PM PDT Friday Jul 25 2014

Synopsis...
one more day of near average temperatures before a warming and
drying trend begins on Sunday. Hot and dry Summer conditions will
continue through the middle of next week. Hot temperatures persist
into the weekend with an increasing risk for thunderstorms.



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Discussion...

Tonight and tomorrow...Flat Ridge of high pressure continues
to amplify through this time interval allowing for a drying and
warming trend ending with the region back to near normal
temperatures for this time of year. Weak weather disturbance
passing across the north Cascades this evening may allow for a
small area of isolated light rain or sprinkles and an uptick in
west winds but by late evening all should stabilize and allow the
warming/drying trend to continue. /Pelatti

Saturday night through monday: The Four Corners ridge will
continue to build northward into the inland northwest. Hot
temperatures are expected beginning Sunday and continuing through
next week. Temperatures in the 90s will be common on Sunday, with
temperatures a few degrees warmer on Monday. Precipitation chances
do not look very high, although some monsoonal moisture may try
and creep up and through the western portion of the ridge on
Monday. The previous forecast already had slight chances for
thunderstorms on Monday for the southern Idaho Panhandle. No
change was made to the location or probabilities. TY

Monday night through friday: a strong ridge of high pressure
centered along the northern rockies will bring hot temperatures
back to the inland northwest during this time frame. 850mb
temperatures via the GFS/ec and ensemble means average 27c Tue/Wed
then cool 25-26c Thu/Fri as the ridge axis slips slightly east.
This will equate to high temperatures in the mid to upper 90's for
most locations with lower 100's in the lowest elevations from Omak
to Wenatchee, across the lower Columbia Basin, and into the l-c
valley. Meanwhile, we will closely monitoring the evolution of
monsoonal moisture trickling northward and weak shortwave energy
ejecting from the Pacific near the California coast. Some models indicate
this moisture will arrive Wednesday night while others favor
thur/Fri. The accompanying lift will be weak so we do not
anticipate a major severe weather outbreak as we saw last
Wednesday but the threat for showers and thunderstorms (likely
elevated in nature to start) will increase given the large scale
pattern. Initial concerns will be directly related to wildland
fire starts with the hot/dry days in place before hand. However,
as moisture continues to transport northward...layer precipitable
water values increase between 1.10-1.40" favoring much wetter
storms. /Sb

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Aviation...
00z tafs: high pressure starts to build in over the next 24 hrs,
leading to dry, VFR conditions at taf sites, with light diurnal
winds with speeds of 10 kts or less. /Ek







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Preliminary point temps/pops...
Spokane 54 83 57 91 64 94 / 0 0 0 0 0 0
Coeur D'Alene 50 81 52 90 59 93 / 0 0 0 0 0 0
Pullman 47 83 49 91 55 93 / 0 0 0 0 10 10
Lewiston 57 91 61 97 66 100 / 0 0 0 0 10 10
Colville 51 85 52 94 55 97 / 0 0 0 0 0 0
Sandpoint 47 78 48 88 52 93 / 0 0 0 0 0 0
Kellogg 51 79 54 89 60 92 / 0 0 0 0 0 10
Moses Lake 56 89 59 95 63 98 / 0 0 0 0 0 0
Wenatchee 59 88 61 93 66 96 / 0 0 0 0 0 0
Omak 53 89 56 94 60 97 / 0 0 0 0 0 0

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Otx watches/warnings/advisories...
Idaho...none.
Washington...none.
&&

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