Aviation Weather for the Lehigh Valley at a glance.

(courtesy Lehigh Valley General Aviation Association)

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Philadelphia Area Forecast Discussion

The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG,
KILG, KMIV, KACY and surrounding areas.

A line of showers and thunderstorms will pass across KTTN, KPNE,
KPHL and KILG within the next 45 minutes to an hour dropping
ceilings to MVFR levels with visibilities dropping to 2-4 SM on
average in moderate rain. Winds should shift to more of an
easterly direction and drop closer to 5-7 kts once the line of
showers and thunderstorms passes. Local erratic higher winds
gusts may occur near thunderstorms. KMIV and KACY should see
activity pass through after 03Z Tuesday within 1-3 hours with
similar drops in ceilings and visibility. Ceilings may rise
behind the showers and thunderstorms for a few hours.

Conditions will deteriorate further tonight once the rain has moved
out. Expect ceilings to start dropping to around 1500-2500 feet,
with some locations falling below 1000ft by late tonight/early
Tuesday morning. Additionally, some fog may form overnight and
visibilities will drop, mainly after midnight. Winds will become
light and variable through the overnight period.

Tuesday...MVFR/IFR conditions will prevail through much of the TAF
period. Guidance shows that some clearing to VFR may occur by early
afternoon but confidence is low that things will clear out that
quickly. Easterly flow will remain at the terminals with winds
around 10 knots or less.

There is some potential for MVFR in low clouds associated with
a frontal system from Thursday into Friday. This potential may
linger into Saturday in ACY and MIV as the southward progression
of the front slows. In addition, any showers or thunderstorms
during this time frame may briefly reduce ceilings and
visibility`s to IFR. Otherwise, VFR for the remainder of the

PA Area Forecast

 Synopsis... low pressure eastern MA. warm front from low into MA coastal waters.  
 cold front from low across CT and RI coastal waters.  

WRN-Central PA... 5000 ft broken, top 060. 11PM (04Z) 3500 ft broken, top 040. 3AM (08Z) occasional visibility 
 3-5SM mist. 
 Outlook...  MVFR ceiling 10AM (15Z) VFR.  
Eastern PA / NJ... 2500 ft broken, top FL200. widely scattered thunderstorms-rain. CB top FL400. thunderstorms 
 POSS SEV. 1AM (06Z) 1500 ft broken. isolated rain showers. 4AM (09Z) 1000 ft overcast. occasional visibility 5SM rain showers 
 Outlook...  IFR ceiling rain showers mist 10AM (15Z) MVFR ceiling 1PM (18Z) VFR.  

Click here Area Forecast Legend Popup


Airmets (click on images to get full size graphic)

10PM (03Z)1AM (06Z)4AM (09Z)7AM (12Z)10AM (15Z)

Surface Prog Charts

Latest 12 hrs 24 hrs 36 hrs

SigWx Prog Charts

Ever have problems finding the correct 12-hour/24-hour prog maps to use? They are released approximately every 6 hours, but you need to know which ones are the most current, and which 24 hour maps are replaced by 12 hour maps (which are based on more recent data). The following takes out the guesswork and arranges the 12 and 24 hour maps in a "best of" sequence for your convenience and ignores the out-of-date 24 hour maps.

1PM (18Z) prior7PM (00Z) prior1AM (06Z)7AM (12Z)1PM (18Z)

Click here Sigwx Legend Popup
Click here WX Symbols Popup


Satellite (visible)

Satellite (infrared)

Winds Aloft

Wilkes Barre, PA (Avoca)

ValidFor Use3000'6000'9000'
1AM (06Z)9PM (02Z) - 4AM (09Z) 230@09 270@16 +10C 250@28 +07C
7AM (12Z)4AM (09Z) - 1PM (18Z) 330@10 330@09 +09C 320@11 +05C
7PM (00Z)1PM (18Z) - 1AM (06Z) 350@13 990@00 +09C 340@10 +08C


For additional NOTAMs you will need to access this site. Paste in: KXLL KABE N43. Click here for NOTAM popup

Click here NOTAM Abbreviations #1 Popup
Click here NOTAM Abbreviations #2 Popup


Disclaimer - the information above is only intended to supplement a pilot's official weather briefing. Be smart and always get an official weather briefing. From fltplan.com: When planes crash, both the FAA and NTSB go looking for a wide spectrum of information, including what kind of flight planning and weather information were obtained by the PIC. Unfortunately in some cases, the pilots have not documented that they indeed did check the weather or performed adequate preflight planning for their flight. When we say 'documented', we are referring to using a source of weather and notams that keeps a record of your weather requests and preflight planning (such as FltPlan.com, Duats, or FSS does).

Other useful weather links are here.

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