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October General Obs/Disc


Ellinwood

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PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

401 PM EDT MON OCT 3 2011

...PUBLIC INFORMATION STATEMENT...

...OCTOBER 2011 OFF TO A CHILLY START...

AN ANOMALOUSLY COLD AND PERSISTENT UPPER-LEVEL CUTOFF LOW PRESSURE

SYSTEM THAT SETTLED OVER THE REGION EARLY SATURDAY HAS BROUGHT

CLOUDY... RAINY AND UNSEASONABLY CHILLY CONDITIONS ACROSS THE

REGION. COOL TEMPERATURES OF 15 TO 20 DEGREES BELOW NORMAL MAKE

IT SEEM MORE LIKE EARLY NOVEMBER THEN EARLY OCTOBER.

ALSO...OVER THE WEEKEND SNOW FELL IN THE HIGHER ELEVATIONS OF

SKYLINE DRIVE NATIONAL PARK IN VIRGINIA...IN HIGH-ELEVATION AREAS

OF FAR WESTERN VIRGINIA AND THE UPPER POTOMAC HIGHLANDS OF WEST

VIRGINIA AND WESTERN MARYLAND. IN SHENANDOAH NATIONAL PARK ALONG

PORTIONS OF SKYLINE DRIVE IN WEST-CENTRAL VIRIGINIA...PARK RANGERS

NOTED A LIGHT ACCUMULATION OF SNOW.

A FEW NOTABLE FEATURES OF THIS COLD PATTERN...

FOR WASHINGTON DC...FOR THE FIRST TWO DAYS OF OCTOBER 2011...

THE 2-DAY AVERAGE TEMPERATURE IN WASHINGTON DC OF 51.8

DEGREES...AS MEASURED AT REAGAN NATIONAL AIRPORT...RANKS 3RD

LOWEST BEHIND 46.3 DEGREES MEASURED FOR THE SAME PERIOD IN 1899

AND 50.3 DEGREES IN 1916. RECORDS DATE BACK TO 1872. THE NORMAL

AVERAGE TEMPERATURE FOR THE FIRST TWO DAYS IN OCTOBER IN

WASHINGTON DC IS 65 DEGREES.

THE 2-DAY AVERAGE MAXIMUM TEMPERATURE IN WASHINGTON DC FOR THE

SAME PERIOD WAS 56.5 DEGREES...WHICH NOW RANKS AS THE COOLEST 2

DAY START IN OCTOBER. THIS SURPASSES THE PREVIOUS COOLEST OCTOBER

2-DAY START OF 57.5 DEGREES SET IN 1940. THE NORMAL AVERAGE HIGH

TEMPERATURE FOR OCTOBER 1ST AND 2ND IN WASHINGTON IS 73.5 DEGREES.

YESTERDAY...OCTOBER 2ND...THE HIGH OF 52 DEGREES TIED THE RECORD LOW

MAXIMUM TEMPERATURE IN WASHINGTON DC OF 52 DEGREES SET IN 1939.

FOR BALTIMORE MD...FOR THE FIRST TWO DAYS OF OCTOBER 2011...

THE 2-DAY AVERAGE TEMPERATURE IN BALTIMORE OF 50.8 DEGREES...AS

MEASURED AT BWI AIRPORT...RANKS 2ND LOWEST BEHIND 48.0 DEGREES

MEASURED FOR THE SAME PERIOD IN 1899. RECORDS DATE BACK TO 1872.

THE NORMAL AVERAGE TEMPERATURE FOR THE FIRST TWO DAYS IN OCTOBER

IN BALTIMORE IS 61.5 DEGREES.

THE 2-DAY AVERAGE MAXIMUM TEMPERATURE IN BALTIMORE FOR THE SAME

PERIOD WAS 55.5 DEGREES...WHICH NOW RANKS AS THE COOLEST 2-DAY

START IN OCTOBER. THIS SURPASSES THE PREVIOUS COOLEST OCTOBER 2-

DAY START OF 57.5 DEGREES SET IN 1899. THE NORMAL AVERAGE HIGH

TEMPERATURE FOR OCTOBER 1ST AND 2ND IN BALTIMORE IS 72 DEGREES.

YESTERDAY...OCTOBER 2ND...THE HIGH OF 51 DEGREES SET A NEW RECORD

LOW MAXIMUM TEMPERATURE IN BALTIMORE...BREAKING THE OLD RECORD OF 53

DEGREES SET IN 1939.

FINALLY...AS TEMPERATURES CONTINUE UNSEASONABLY COOL TODAY...OCTOBER

3RD...THE FIRST THREE DAYS OF OCTOBER 2011 LIKELY WILL RANK NEAR

THE TOP COOLEST STARTS IN OCTOBER.

$$

SMZ

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We won't have to deal with this for a while

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

0130 AM EDT TUE OCT 04 2011

...RECORD LOW MAXIMUM TEMPERATURE WAS TIED AT WASHINGTON NATIONAL

DC...

A RECORD LOW MAXIMUM TEMPERATURE OF 53 DEGREES WAS TIED AT

WASHINGTON NATIONAL DC YESTERDAY. THIS TIES THE OLD RECORD OF 53

DEGREES SET IN 1974.

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Great fall weekend coming up.

GFSX MOS (MEX)  KDCA   GFSX MOS GUIDANCE  10/04/2011  0000 UTC   
FHR  24| 36  48| 60  72| 84  96|108 120|132 144|156 168|180 192   
TUE  04| WED 05| THU 06| FRI 07| SAT 08| SUN 09| MON 10| TUE 11 CLIMO
X/N  71| 52  73| 49  69| 49  71| 53  76| 56  81| 55  77| 57  76 49 71
TMP  63| 54  65| 51  62| 50  64| 55  69| 58  72| 57  68| 59  68 	
DPT  47| 46  48| 40  43| 43  45| 49  54| 52  56| 51  51| 53  53 	
CLD  PC| CL  CL| CL  CL| CL  CL| CL  CL| CL  CL| CL  CL| CL  CL      
WND  13| 10  11|  8   6|  5   7|  5   7|  5   7|  6   8|  6   9  
P12   6|  1   0|  2   0|  1   1|  5   6|  9   7| 11  10| 15  15 18 16
P24    |      1|      2|      1|      6|      9| 	14| 	21    25
Q12   0|  0   0|  0   0|  0   0|  0   0|  0   0|  0    | 	
Q24    |      0|      0|      0|      0|      0|   	|        
T12   2|  3   1|  0   0|  0   1|  2   2|  3   3|  4   4|  3   0   
T24    |  3    |  1    |  1    |  3    |  4    |  6    |  4   	
PZP   0|  0   0|  0   0|  0   0|  0   0|  0   0|  0   0|  0   0    
PSN   0|  0   0|  0   0|  0   0|  0   1|  0   0|  0   2|  0   0    
PRS   2|  0   1|  0   1|  0   1|  0   0|  1   1|  1   1|  1   1    
TYP   R|  R   R|  R   R|  R   R|  R   R|  R   R|  R   R|  R   R 	
SNW    |      0|      0|      0|      0|      0|   	|            

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