Tuesday, March 24, 2009

Short term weather...(tonight - tomorrow)

Good evening
to all. As you can see by the latest rardar imagery, that a PSCZ is currently ongoing and is over the South Snohomish/ North King county line and stretching into the central Cascades. This CZ looks to last into the evening hours as the 12zWRF shows 850mb Westerly flow continuing through the night. But at the same time, showers look to become wide spread into later on this evening into early morning hours as frontal system/ trough nears the CA/WA border and then slides through Western WA.

As seen by the current inferred satellite image, the frontal system is clearly seen with back egde of the front currently over southern BC. This is the system that slide in here during the day tomorrow with precip looking to end from North to south(3hr precip charts 27hr & 33hr). So as mentioned this morning, should see gradual improving weather through the day with perhaps some evening clearing. And lastly, 12zWRF still showing Thursday to be a dry day.

2 comments:

  1. Andy,

    Do you see anything on the long(er) range models that might be a bit interesting to watch play out? By the sounds of the Long Term sections of the NWS Forecast Discussion, it could be quite cold for this time of year next week. Anything about that?

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  2. Yes Brian, you would be correct in seeing what you read. In fact, it does look quite cool( probably 40`s for highs)for next week. And this looks to be due to NW-WNWLY flow with embedded troughs at times coming through our region. It`s a little ways out there yet, but was seeing that the 12zWRF is showing some lowland snow over the central sound for next Wed. Will it happen? We`ll have to wait and see, but I`ll give a slim chance for right now.

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