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The Data originates at the National Weather Service, and is made available here by the UAlbany Department of Atmospheric and Environmental Sciences

Decoded Surface Observations


The weather observed at ALLENTOWN, PA (KABE) at 02:51 AM EST was:
  The skies were cloudy.
  Temperature: 27F ( -3C)  Dewpoint:  16F ( -9C)  Relative Humidity:  63%
  Winds from the NW (330 degs) at  8 mph.
  Pressure: 1031.7 millibars.  Altimeter:30.45 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at WASHINGTON, PA (KAFJ) at 02:56 AM EST was:
  The skies were clear.
  Temperature: 17F ( -8C)  Dewpoint:  14F (-10C)  Relative Humidity:  88%
  Winds from the CLM(CLM degs) at  0 mph.
  Pressure: 1036.0 millibars.  Altimeter:30.54 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at PITTSBURGH/ALLEG, PA (KAGC) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 18F ( -8C)  Dewpoint:  14F (-10C)  Relative Humidity:  86%
  Winds from the NW (310 degs) at  3 mph.
  Pressure: 1035.1 millibars.  Altimeter:30.50 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at ALTOONA, PA (KAOO) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 19F ( -7C)  Dewpoint:   9F (-13C)  Relative Humidity:  62%
  Winds from the NW (310 degs) at 17 mph.
  Pressure: 1033.2 millibars.  Altimeter:30.44 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at AVOCA/WILKES B., PA (KAVP) at 02:54 AM EST was:
  The skies were mostly cloudy.
  Temperature: 19F ( -7C)  Dewpoint:  10F (-12C)  Relative Humidity:  68%
  Winds from the NW (320 degs) at  8 mph.
  Pressure: 1031.5 millibars.  Altimeter:30.43 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at BRADFORD, PA (KBFD) at 02:53 AM EST was:
  The skies were clear.
  Temperature:  7F (-14C)  Dewpoint:   3F (-16C)  Relative Humidity:  85%
  Winds from the W  (280 degs) at  5 mph.
  Pressure: 1032.6 millibars.  Altimeter:30.38 inches of mercury.
  The prevailing visibility was 9 miles.

The weather observed at BUTLER CO., PA (KBTP) at 02:56 AM EST was:
  The skies were clear.
  Temperature: 11F (-12C)  Dewpoint:   7F (-14C)  Relative Humidity:  84%
  Winds from the CLM(CLM degs) at  0 mph.
  Pressure: 1036.1 millibars.  Altimeter:30.51 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at DU BOIS, PA (KDUJ) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 11F (-12C)  Dewpoint:   7F (-14C)  Relative Humidity:  84%
  Winds from the W  (260 degs) at  5 mph.
  Pressure: 1033.1 millibars.  Altimeter:30.42 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at DOYLESTOWN, PA (KDYL) at 02:54 AM EST was:
  The skies were mostly cloudy.
  Temperature: 25F ( -4C)  Dewpoint:  14F (-10C)  Relative Humidity:  63%
  Winds from the NNW(340 degs) at  8 mph.
  Pressure: 1031.4 millibars.  Altimeter:30.43 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at ERIE, PA (KERI) at 02:51 AM EST was:
  The skies were clear.
  Temperature:  8F (-13C)  Dewpoint:   4F (-16C)  Relative Humidity:  83%
  Winds from the SSE(160 degs) at  3 mph.
  Pressure: 1036.0 millibars.  Altimeter:30.55 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at CLEARFIELD, PA (KFIG) at 02:54 AM EST was:
  The skies were mostly clear.
  Temperature: 16F ( -9C)  Dewpoint:  10F (-12C)  Relative Humidity:  79%
  Winds from the SW (240 degs) at  6 mph.
  Pressure: 1033.6 millibars.  Altimeter:30.45 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at MEADVILLE, PA (KGKJ) at 02:53 AM EST was:
  The skies were clear.
  Temperature:  9F (-13C)  Dewpoint:   6F (-14C)  Relative Humidity:  88%
  Winds from the NE (030 degs) at  3 mph.
  Pressure: 1034.7 millibars.  Altimeter:30.48 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at INDIANA/STEWART, PA (KIDI) at 02:55 AM EST was:
  The skies were clear.
  Temperature: 16F ( -9C)  Dewpoint:  12F (-11C)  Relative Humidity:  85%
  Winds from the CLM(CLM degs) at  0 mph.
  Altimeter:30.51 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at WILLIAMSPORT, PA (KIPT) at 02:54 AM EST was:
  The skies were clear.
  Temperature: 21F ( -6C)  Dewpoint:  10F (-12C)  Relative Humidity:  63%
  Winds from the NW (310 degs) at  5 mph.
  Pressure: 1032.7 millibars.  Altimeter:30.47 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at JOHNSTOWN, PA (KJST) at 02:54 AM EST was:
  The skies were cloudy.
  Temperature: 14F (-10C)  Dewpoint:   9F (-13C)  Relative Humidity:  80%
  Winds from the WNW(290 degs) at  9 mph.
  Pressure: 1032.7 millibars.  Altimeter:30.38 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at LATROBE/WESTMORL, PA (KLBE) at 02:55 AM EST was:
  The skies were clear.
  Temperature: 18F ( -8C)  Dewpoint:  14F (-10C)  Relative Humidity:  86%
  Winds from the CLM(CLM degs) at  0 mph.
  Altimeter:30.51 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at LANCASTER, PA (KLNS) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 28F ( -2C)  Dewpoint:  16F ( -9C)  Relative Humidity:  59%
  Winds from the NW (320 degs) at  8 mph.
  Pressure: 1031.7 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at MT. POCONO, PA (KMPO) at 02:53 AM EST was:
  The skies were cloudy.
  The weather reported was light snow.
  Temperature: 14F (-10C)  Dewpoint:   9F (-13C)  Relative Humidity:  80%
  Winds from the NW (300 degs) at 13 mph.
  Pressure: 1030.0 millibars.  Altimeter:30.32 inches of mercury.
  The prevailing visibility was 9 miles.
  There has been 0.00 inches of precipitation in the past hour.

The weather observed at MUIR AAF/INDIANT, PA (KMUI) at 02:56 AM EST was:
  The skies were cloudy.
  Temperature: 26F ( -3C)  Dewpoint:  13F (-11C)  Relative Humidity:  56%
  Winds from the CLM(CLM degs) at  0 mph.
  Pressure: 1032.3 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at PHILADELPHIA, PA (KPHL) at 02:54 AM EST was:
  The skies were mostly clear.
  Temperature: 30F ( -1C)  Dewpoint:  15F ( -9C)  Relative Humidity:  53%
  Winds from the NW (330 degs) at 13 mph.
  Pressure: 1031.5 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at PITTSBURGH, PA (KPIT) at 02:51 AM EST was:
  The skies were partly cloudy.
  Temperature: 16F ( -9C)  Dewpoint:  12F (-11C)  Relative Humidity:  85%
  Winds from the NW (330 degs) at  5 mph.
  Pressure: 1035.9 millibars.  Altimeter:30.51 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at PHILADELPHIA/NE, PA (KPNE) at 02:54 AM EST was:
  The skies were clear.
  Temperature: 28F ( -2C)  Dewpoint:  16F ( -9C)  Relative Humidity:  59%
  Winds from the N  (360 degs) at 14 mph.
  Pressure: 1031.8 millibars.  Altimeter:30.47 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at POTTSTOWN, PA (KPTW) at 02:54 AM EST was:
  The skies were clear.
  Temperature: 25F ( -4C)  Dewpoint:  10F (-12C)  Relative Humidity:  54%
  Winds from the NW (330 degs) at  7 mph.
  Pressure: 1031.6 millibars.  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at READING, PA (KRDG) at 02:54 AM EST was:
  The skies were clear.
  Temperature: 27F ( -3C)  Dewpoint:  16F ( -9C)  Relative Humidity:  63%
  Winds from the NW (330 degs) at 15 mph.
  Pressure: 1032.1 millibars.  Altimeter:30.45 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at SELINSGROVE, PA (KSEG) at 02:53 AM EST was:
  The skies were mostly clear.
  Temperature: 24F ( -4C)  Dewpoint:  11F (-12C)  Relative Humidity:  57%
  Winds from the NW (300 degs) at  8 mph.
  Pressure: 1033.2 millibars.  Altimeter:30.49 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at YORK, PA (KTHV) at 02:53 AM EST was:
  The skies were clear.
  Temperature: 27F ( -3C)  Dewpoint:  16F ( -9C)  Relative Humidity:  63%
  Winds from the NW (330 degs) at  7 mph.
  Pressure: 1032.7 millibars.  Altimeter:30.47 inches of mercury.
  The prevailing visibility was 10 miles.

The weather observed at STATE COLLEGE, PA (KUNV) at 02:56 AM EST was:
  The skies were clear.
  Temperature: 18F ( -8C)  Dewpoint:  10F (-12C)  Relative Humidity:  73%
  Winds from the CLM(CLM degs) at  0 mph.
  Altimeter:30.46 inches of mercury.
  The prevailing visibility was 10 miles.