Scientific Forecaster Discussion
fxus65 kslc 251623
Area forecast discussion
National Weather Service Salt Lake City Utah
1023 am MDT Tue Jul 25 2017
Synopsis...monsoonal moisture will remain in place across the
region through midweek. A gradual drying trend is expected for
the latter portion of the week.
Discussion...subtle features embedded within this deep monsoonal
moisture will continue to produce areas of heavy rain across the
County Warning Area today. The main feature appears to be a 700mb circulation over
Washington co this morning which has been producing widespread
heavy rainfall past several hours. This circulation will open up
and move northeast into northeastern Utah this afternoon. Although
it is not expected to be as potent as it moves northeast it will
produce widespread showers and isolated thunderstorms. Have raised
pops across southwest Utah this morning and for east central and
northeast Utah this afternoon.
The chance for strong thunderstorms is greatly reduced today as
the mid level lapse rates are between -5.5 and 6.5 degrees across
most of the County Warning Area. There is very skinny cape across the area so we
will see showers and isolated thunderstorms.
Have cooled temps across the region today due to cloud cover and
precipitation. Areas that remain under precip may end up much
below current forecasts but any breaks in rain or clouds will
allow temps to warm, so difficult to lower temps too much.
Aviation...VFR conditions should prevail at kslc this
morning/afternoon. Scattered showers will continue to pass in the
vicinity of the terminal over the next few hours with activity
beginning to thin out around 21-22z. Southeasterly winds should
switch to the northwest around 19z although winds may turn light and
variable for a while in the early afternoon.
Utah...Flash Flood Watch until 9 PM MDT this evening for utz010-012>016-
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