Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
|Sunrise 7:33AM||Sunset 5:30PM||Saturday January 25, 2020 3:07 AM EST (08:07 UTC)||Moonrise 8:18AM||Moonset 6:17PM||Illumination 0%|
7 Day Forecast for Marine Location Near West Homestead , PAHourly EDIT Help
Area Discussion for - Pittsburgh, PA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS61 KPBZ 250554 AFDPBZ
Area Forecast Discussion National Weather Service Pittsburgh PA 1254 AM EST Sat Jan 25 2020
SYNOPSIS. Rain will change to snow showers late Saturday. Snow showers are then expected through the remainder of the weekend.
NEAR TERM /THROUGH TODAY/. Evening update . have cancelled the wind advisory. Lowering saturation levels is hampering the ability for the very strong wind aloft to maneuver down through the saturated column. Wind gusts have remained below advisory criteria. Gusts around 40mph are still possible this evening. PoPs have been updated in line with the latest radar imagery and hires model guidance. A plume of moisture, on the eastern flank of the northeastward moving upper low, will keep in widespread rain showers through the evening hours. Decreasing upper level support and a surface low drifting away from the region, will allow for rain intensity to decrease later this evening. Removed the mention of snow flakes overnight. Model thicknesses remain to warm to support the development of snow. Temperatures have been modified with a blend of hires model guidance.
Previous discussion . As for precipitation type, persistent warm advection and overall surface temperature above freezing will support widespread rain through the remainder of the period.
Cooler, drier air will filter in behind the frontal boundary Saturday morning. The temperature will remain steady (upper 30s) for much of the day with a few light showers possible.
SHORT TERM /TONIGHT THROUGH MONDAY/. Another shortwave axis rotating around the vertically-stacked low pressure system will cross the region Saturday evening. This appears to be the best period for snow efficiency given steep low-level lapse rates and a decent moisture profile through the dendritic growth zone. However, warm surface temperature should hamper ground accumulation to less than an inch in most locations.
Sunday will be quite similar to Saturday w/ temps steady in the 30s. A few snow/rain showers will be possible through the day. Analysis of forecast soundings suggests that moisture in the snow-growth zone will be quite limited on Sunday. It's possible seeder-feeder mechanism may alleviate this such that light snow falls rather than freezing drizzle. In any case, QPF looks minimal and any accumulation should be non-significant.
Yet another shortwave axis will cross over the region Sunday night, resulting in more light snow showers. Little to no accumulation anticipated.
LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. Each day next week will be remarkably similar to one another. A nearly continuous overcast sky will keep the diurnal range to a minimum. Highs will generally be in the upper 30s, lows 25-30, and no significant precipitation.
AVIATION /06Z SATURDAY THROUGH WEDNESDAY/. A variety of flight conditions are in place at the start of the TAF period, but expect that most will drop into IFR as the low levels remain saturated. Steady rain will continue to pull east through the night, but stratus/fog will continue to provide restrictions.
Low clouds will remain in place through the daylight hours. Improvement to MVFR conditions is expected around the midday hours, with a few scattered showers remaining. The next shortwave will arrive after 00Z Sunday, bringing continued shower chances and a return of IFR ceilings.
Wind will remain light for the most part overnight, before taking on more of a southwesterly direction later Saturday morning, with gusts to 15 to 20 knots possible.
Outlook. Widespread restrictions are expected through Sunday with crossing low pressure.
PBZ WATCHES/WARNINGS/ADVISORIES. MD . None. OH . None. PA . None. WV . None.
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Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Pittsburgh - Allegheny County Airport, PA||4 mi||75 min||N 0||1.75 mi||Light Rain Fog/Mist||43°F||42°F||97%||1011.6 hPa|
|Pittsburgh, Pittsburgh International Airport, PA||18 mi||77 min||E 8||10.00 mi||Overcast||42°F||39°F||92%||1011.4 hPa|
Link to 5 minute data for KAGC
Wind History from AGC (wind in knots)
|1 day ago||NE||NE||Calm||Calm||Calm||Calm||SE||SE||SE||S||SE||S||SE||Calm||E||E||E||E||NE||NE||S||SE||E||E|
|2 days ago||S||S||S||S||S||S||S||S||SW||Calm||S||Calm||SE||Calm||E||SE||SE||SE||SE||Calm||Calm||Calm||NE |
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GEOS Local Image of Mid-Atlantic EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Pittsburgh, PA (3,6,7,8)(on/off)  Help
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