LOCAL WEATHER CONDITIONS AT Franklin, Venango Regional Airport Temperature 48.2 F / 9 C Dew Point 46.4 F / 8 C Humidity 94% Wind Speed 4.6 Wind Direction W 270 Degrees Visibility 10 Miles Sky Conditions scattered at 3800 feet broken at 5500 feet overcast at 7000 feet Current Weather Barometer 30.19 Inches Issued At 08/27/2025 06:56 $$ |
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No current warnings, advisories or statements
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Area Forecast Discussion
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FXUS61 KPBZ 270726 AFDPBZ Area Forecast Discussion National Weather Service Pittsburgh PA 326 AM EDT Wed Aug 27 2025 .SYNOPSIS... Lake effect showers are expected to continue this morning. An ejecting trough over the Great Lakes will likely created additional rain showers Thursday into Friday. High temperatures will remain near or below normal into the holiday weekend. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... KEY MESSAGES: - Lake effect showers mainly north of Pittsburgh this morning - Temperature near 10 degrees below normal --------------------------------------------------------------- With warm lake surface temperatures (near 72 degrees), sufficiently cool 850mb (around 6 degrees Celsius), and a passing shortwave, isolated lake effect showers will continue through late morning. Coverage will remain primarily north of Pittsburgh. Weak fetch across the lake and winds shifting from the west will likely decrease the potential for lake effect by late morning. Below average temperatures are expected to continue under northwest flow. Temperatures could be within 3-4 degrees from record LowMax and LowMin at a few climate sites today. && .SHORT TERM /6 PM THIS EVENING THROUGH THURSDAY NIGHT/... KEY MESSAGES: - High confidence in cool temperatures - Showers chances return Thursday evening ---------------------------------------------------------------- Despite a brief period of ridging late tonight into early Thursday, below average temperatures will continue across the region. A closed upper-level low out of Ontario will increase cloud coverage and precipitation chances late Thursday evening and continue into Thursday night. The National Blend of Models (NBM) suggests higher probabilities (above 60%) for measurable precipitation north of I-80 through midnight; areas south of Pittsburgh are 20% or lower. && .LONG TERM /FRIDAY THROUGH TUESDAY/... KEY MESSAGES: - Precipitation chances early Friday - Cool weather pattern continues through at least Sunday - Dry conditions over the weekend ------------------------------------------------------------------- The short-term trough noted earlier will likely pass near the region early Friday, brining ongoing precipitation before 8am. As mid-level subsidence builds in from the northwest after daybreak, rain chances should diminish late morning, through a few upslope showers may linger over the ridges. Cooler air aloft, lingering clouds, and residual precipitation will keep Friday's high 10 degrees below normal, ranging from mid-60s to low-70s. Dry and quiet weather is expected this weekend as the mature low weakens, shifts east, and opens into a wave. A ridge building to our west Sunday will support a rebound in temperatures by 5 degrees when compared to Saturday's highs. By Monday and Tuesday, temperatures should return to near average under strengthening high pressure. Ensemble guidance keeps precipitation probabilities at 20% or less early next week. && .AVIATION /07Z WEDNESDAY THROUGH SUNDAY/... Patchy VFR stratocumulus continue to make their way overhead, with chances of MVFR only maximizing at 30% in the vicinity of MGW before daybreak. Patchy fog is possible at valley ports but not favored enough to denote prevailing groups; amendments will be issued should this trend change. Fog may be locally dense. Into today, mixing is expected to raise and scatter ceiling slightly, with scattered VFR cu expected in the 5kft-8kft layer as winds veer west- northwest. Decoupling, and backing of winds southerly is south-southwest is most favored overnight, with a dissipation of low clouds, with broken VFR high decks taking their place. .OUTLOOK... Approaching upper trough may lead to area showers and restrictions favoring northwest PA Thursday afternoon into Friday morning. This will give way to VFR and dry weather over the Labor Day weekend. && .PBZ WATCHES/WARNINGS/ADVISORIES... PA...None. OH...None. WV...None. && $$ SYNOPSIS...Hefferan NEAR TERM...Hefferan SHORT TERM...Hefferan LONG TERM...Hefferan AVIATION...Milcarek |