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Early January 2014 cold snaps - featuring the polar vortex of doom


Ian

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Dulles broke a record?

 

Record daily minimum temperature set Washington Dulles DC...

A record minimum temperature of 1 degree was set at Washington
Dulles DC at 732 am... breaking the old record of 8 degrees which was
set in 1988.

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1205 PM EST TUE JAN 7 2014

...PUBLIC INFORMATION STATEMENT...

THE TEMPERATURE EQUIPMENT AT THE DULLES INTERNATIONAL AIRPORT
AUTOMATED SURFACE OBSERVING SYSTEM SUFFERED A MALFUNCTION DURING THE
EARLY MORNING HOURS. THE EQUIPMENT WAS REPAIRED SOON THEREAFTER.

THE NATIONAL WEATHER SERVICE WEATHER FORECAST OFFICE...WFO...IN
STERLING VIRGINIA MAINTAINS CERTIFIED TEMPERATURE OBSERVING
EQUIPMENT THAT IS USED FOR TAKING DAILY COOPERATIVE OBSERVATIONS.

AFTER A COMPARISON OF THE WFO STERLING TEMPERATURE DATA TO NEARBY
TEMPERATURE OBSERVATIONS...WE DETERMINED THE OFFICIAL LOW TEMPERATURE
FOR DULLES AIRPORT THIS MORNING WAS 1F DEGREE ABOVE ZERO. THIS
OCCURRED AT 732 AM EST.
 

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

1205 PM EST TUE JAN 7 2014

...PUBLIC INFORMATION STATEMENT...

THE TEMPERATURE EQUIPMENT AT THE DULLES INTERNATIONAL AIRPORT

AUTOMATED SURFACE OBSERVING SYSTEM SUFFERED A MALFUNCTION DURING THE

EARLY MORNING HOURS. THE EQUIPMENT WAS REPAIRED SOON THEREAFTER.

THE NATIONAL WEATHER SERVICE WEATHER FORECAST OFFICE...WFO...IN

STERLING VIRGINIA MAINTAINS CERTIFIED TEMPERATURE OBSERVING

EQUIPMENT THAT IS USED FOR TAKING DAILY COOPERATIVE OBSERVATIONS.

AFTER A COMPARISON OF THE WFO STERLING TEMPERATURE DATA TO NEARBY

TEMPERATURE OBSERVATIONS...WE DETERMINED THE OFFICIAL LOW TEMPERATURE

FOR DULLES AIRPORT THIS MORNING WAS 1F DEGREE ABOVE ZERO. THIS

OCCURRED AT 732 AM EST.

 

 

That makes sense now.  I was puzzled by the morning temperatures being reported at Dulles, since my temps were significantly lower and  my numbers usually correlate pretty well to Dulles.

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

1205 PM EST TUE JAN 7 2014

...PUBLIC INFORMATION STATEMENT...

THE TEMPERATURE EQUIPMENT AT THE DULLES INTERNATIONAL AIRPORT

AUTOMATED SURFACE OBSERVING SYSTEM SUFFERED A MALFUNCTION DURING THE

EARLY MORNING HOURS. THE EQUIPMENT WAS REPAIRED SOON THEREAFTER.

THE NATIONAL WEATHER SERVICE WEATHER FORECAST OFFICE...WFO...IN

STERLING VIRGINIA MAINTAINS CERTIFIED TEMPERATURE OBSERVING

EQUIPMENT THAT IS USED FOR TAKING DAILY COOPERATIVE OBSERVATIONS.

AFTER A COMPARISON OF THE WFO STERLING TEMPERATURE DATA TO NEARBY

TEMPERATURE OBSERVATIONS...WE DETERMINED THE OFFICIAL LOW TEMPERATURE

FOR DULLES AIRPORT THIS MORNING WAS 1F DEGREE ABOVE ZERO. THIS

OCCURRED AT 732 AM EST.

 

 

Sounds right with the Hazy Center around zero

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why is JYo always so warm? Jet fuel?

I wish I knew....seems like these small airports report high other than Frederick...what makes me nuts is that it is the official reporting station for leesburg so we are always high. It might be accurate though for that patch of land it's on but it's so close to here I can see it being wrong as well

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why is JYo always so warm? Jet fuel?

Maybe it's the fence they recently erected on the perimeter to contain the heat, or radiation from the terminal doppler?  Seriously though, I have spent enough nights practicing soccer across the street at Bolen park to confirm Bolen is the coldest spot on earth, perhaps the JYO cold drains into the bowl there.  Under clear skies and ideal radiational cooling condition, have seen my car thermometer climb 5*-6*F from the bottom of Bolen a mile or so up to Sycolin road, exiting right at the airport terminal.

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