Monday, May 4, 2015

Showers and Thunderstorms on Tap for Today

The weather the past few days has been pretty disappointing with only an isolated shower here and there, but today looks to be a bit juicier and a bit more interesting.  It's not even 11 and cumulus congestus are on the rise over the Oquirrhs.

Soundings for the last 3 mornings (including today) show only subtle changes thermodynamically, but a gradual moistening with the integrated water vapor (a.k.a., precipitable water or PWAT) increasing from 13.8 to 16.4 mm.

That moisture should allow for an increase in the coverage of showers and thunderstorms today.  Stuff bubbling up over the mountains looks fairly likely.

These storms won't show much movement, however, as the flow is very weak.  In addition, this afternoon, the NAM is calling for easterly or southeasterly flow below 500 mb.
It would be nice if those easterlies can pull something from the Wasatch over the Salt Lake Valley.  Despite a shower last night, it would be nice to get additional watering for the lawns and gardens.

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