Scientific Forecaster Discussion
Area forecast discussion
National Weather Service Tulsa OK
610 PM CDT Monday Jul 27 2015
concerning taf sites ktul/krvs/kbvo/kmlc/kxna/kfyv/kfsm/krog.
VFR conditions are expected to prevail at area taf sites through
the valid period.
Previous discussion... /issued 400 PM CDT Monday Jul 27 2015/
another hot and dry afternoon across eastern Oklahoma and western
Arkansas. By early afternoon...heat indices had reached between
105-110 degrees across much of eastern Oklahoma and western
Arkansas...with east central Oklahoma rising between 110-115. As
daytime heating reaches its maximum...a few isolated pulse storms
will be possible this afternoon...mainly across far eastern
Oklahoma and into western Arkansas. Any shower and storm activity
should diminish shortly after sunset. Conditions Tuesday will be
a degree or two cooler...with slightly drier conditions...however
heat indices will again reach just at or above criteria tomorrow
afternoon across much of eastern Oklahoma and western Arkansas. A
few locations...mainly across east central Oklahoma...could reach
into the lower 110s again. A heat advisory has been issued for a
large portion of the forecast area for Tuesday afternoon and early
evening. The large area of high pressure that has brought the hot
and dry weather to the region will begin to weaken and shift
toward the southwest on Wednesday. This will allow a cold front to
push into the area from the Central Plains Wednesday afternoon.
Scattered showers and thunderstorms will develop along this
frontal boundary...and push into northeast Oklahoma by late
Wednesday. Chances for precipitation will persist into the latter
half of the work week...as the large area of high pressure remains
southwest of the area...and convection forms along the outer
periphery of the high.
OK...heat advisory until 8 PM CDT this evening for okz049-053>068-
Heat advisory from noon to 8 PM CDT Tuesday for okz049-053>068-
Arkansas...heat advisory until 8 PM CDT this evening for arz019-020-029.
Heat advisory from noon to 8 PM CDT Tuesday for arz019-020-029.