Area Forecast Discussion
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS61 KPBZ 261913
AFDPBZ

Area Forecast Discussion
National Weather Service Pittsburgh PA
313 PM EDT Fri Aug 26 2016

.SYNOPSIS...
Hot and mainly dry weather can be expected until late Sunday.

&&

.NEAR TERM /THROUGH TONIGHT/...
Upper ridge will maintain it`s hold on the region tonight. A weak
impulse riding along the periphery of the upper ridge supported an
area of thunderstorms over Indiana that have since dissipated.
However, outflow from those storms may support additional
development over southeastern Ohio early where some instability
and weak shear exists. Have opted to keep low PoPs for now and
will monitor development over the next few hours.

Otherwise, expect decreasing dewpoints and clear, calm conditions
to allow for lows near normal overnight. Some patchy fog may be
possible, mainly in river valleys in the morning.

&&

.SHORT TERM /SATURDAY THROUGH MONDAY/...
Strong high pressure will build over the Mid Atlantic states
through the weekend. Despite weak southerly flow on Saturday,
expect above average temperatures, as 850hpa temperatures
approach 21C. Better Gulf moisture will remain along the periphery
of the ridge on Saturday but a shortwave crossing the northern
Great Lakes will begin to break down this ridge late Sunday. Will
return pop chances by late afternoon, with PoPs continuing with
the passage of a weak front through Monday.

&&

.LONG TERM /MONDAY NIGHT THROUGH THURSDAY/...
Shortwave energy and tropical encroachment on the Southeastern
Coast is progged to flatten flow across the northern tier of the
CONUS next week. The disturbances in flow would support periodic,
and diurnally-enhanced precip chances, but confidence in timing
and the magnitude of the pattern change are low, so the forecast
was constructed with chance PoPs and an ease away from the warmth
by the latter half of the week.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
VFR conditions are expected through the forecast period. Limited
patchy river valley fog saturday morning in southern parts of the
county warning area.

.OUTLOOK /FRIDAY NIGHT THROUGH TUESDAY/...
The next chance for restrictions should come with the approach of
a front late Sunday and Monday.

&&

.CLIMATE...
So far as of today 8-26-2016 Pittsburgh International has had an
average temperature of 76.0 degrees for the month of August. That
is 4.3 degrees above normal. So far KPIT is tied for the 4th
warmest August

Current top 10 warmest August for PIT
78.7 August 1900
77.7 August 1995
76.6 August 1947
76.6 August 1918
76.0 August 1881
75.6 August 1906
75.2 August 1878
75.2 August 1937
75.1 August 1988
75.0 August 1901

&&

.PBZ WATCHES/WARNINGS/ADVISORIES...
MD...None.
OH...None.
PA...None.
WV...None.

&&

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.