Atmos washington edu mm5rt

Flab 5 park bench kickin' the pigeons story Saturday, March 14, Staring out the Window So, this morning, trying to get some firm footing on the flab 5 website, i'm staring out the window deep in thought, when, thru the rain and increasingly darker skies, comes a hummingbird, to the feeder!!!!!! With the forecast of snow at my level tonight, it's another reminder of just how strange things are out there in the weather world Thursday, February 12, i should be out kicking the pigeons Remember when You will also notice the wind shift How about Hoquiam or Ellensburg over the past two weeks?

See the attached graphics. You will see a strong daily diurnal variation in wind speed. So why do winds vary during the day so much?

A few reasons. The first is that winds generally increase with height in the atmosphere since friction or drag is greatest near the rough surface. During the night when the surface cools, the atmosphere is more stable in the vertical less mixing when cooler, dense air is low down. During the day, the surface warms and the air tends to mix in the vertical, as less dense, heated air rises.

More mixing brings the winds down from aloft and thus the winds tend to be stronger. But there is another reason At night land and water are similar in temperature around here, but during day, and particularly warm days, the land heats and pressure tends to fall over land compared to water. The result are sea breeze circulations that increase winds. On the coast near Hoquiam there is a classic sea breeze across the coast. For Ellensburg , there is a huge "sea breeze" between the strongly heated eastern side of the state and the cooler west.

If you want to learn more about these diurnal circulation, my book has a whole chapter on it. Talking of weather, today Saturday is slightly cooler than Friday since there was more marine air moving in last night.

Even more marine air will move into the western interior on Sunday. But temps will remain in the 70s and no precipitation is forecast. We have serious dry conditions, particularly east of the Cascade crest. The threat of major fires is quite real. Corie July 18, at PM. Chris Christensen July 18, at PM. Joe July 18, at PM. Bonnie Story July 19, at AM. These gridded and tablular netcdf files contain information of the monthly climatology and individual properties of the identified echo objects.

So, for example, the broad stratiform data from January of is contained in 4 files - strong thresholds and gridded, strong thresholds and tabular, moderate thresholds and gridded, and moderate thresholds and tabular.

The UW database contains information on six types of radar echo objects derived from the interpolated Cartesian data described above. The statistics for each event in the tabular output describie both the core and its associated storm. Each core and storm are also identified by 2-dimensional masks in the interpolated data files. For example, if a storm contains three different DCC objects, they are numbered 1, 2 and 3 in the tabular output and the correspoinding DCC mask is filled with 1's, 2's and 3's at the appropriate grid points.

All remaining points in the mask are filled with the missing value.