BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
 
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, NOVEMBER 4, 2007
ALL TIMES ARE IN EASTERN STANDARD TIME
 
EXTRATROPICAL STORM NOEL PASSED OFFSHORE YESTERDAY...
PEAK WIND GUSTS REACHED NEAR 50 MPH FROM N AND NNW
RAINFALL TOTAL 0.95 INCH ALL FELL WITHIN 12 HOURS
 
PEAK WIND GUSTS RECORDED....   
420C   ..............51 N   AT 10:49 A.M.
AEROVANE.............50 NNW AT  5:01 P.M.
ASOS.................48 NNW AT  5:01 P.M.
DAVIS................46 N   AT 10:49 A.M.
MAXIMUM, INC Maestro 52 
             Merlin  51 WNW (evening)
 
The strongest 2-minute sustained winds blew from the
WNW at 30 to 31 MPH during the mid-evening around the
time of the lowest pressure as the storm center was 
passing just east of Nantucket with a gust from the north
there to 71 MPH.  The final rainfall total there was 3.5 inches. 
 
Light rainfall began here  at 8:45 EDT this morning and continued
occasionally moderate through early this afternoon.
A dry slot developed in the precipitation shield over eastern Mass
during the afternoon which held down the rainfall amounts for at least
a couple of hours.  The heaviest rain for the storm began during the
late afternoon and the greatest intensity of precipitation was the
hour ending at 7 PM EDT when 0.16 inch accumulated.   
 
Our lowest barometer was not reached until evening when the
reading bottomed out at 29.38 inches at 9:08 P.M. EDT
The barometer fell rapidly during the afternoon, dropping 3.4 mb (0.10
inch) in the hour ending at 2 PM EDT and 8.8 mb (0.26 inch)
in 3 hours ending at 5 PM EDT.  
 
Today's observations:
 
7 A.M.  
Weather: Clear, middle and high clouds (Ac,Ci) NE-SE-WSW
Temperature: 37F, Dew point: 20F, Wind: WSW at 11 kts
Sea-level pressure: 29.76 inches Hg, rising
Visibility: 70 miles
6-hour min temp: 37F
24-hour precipitation: 0.95 inch
BHO SA 1155 CLR 70 077/37/20/2411/976/ FEW AC/ACSL NE-SE-WSW
FEW ACC/VIRGA DSNT SSE-SSW FEW CI/CC OVHD WND GRDLY BACKING/
8/081 51033 ASOS 70094 MANUAL 70095 10040 20037
 
10 A.M.  
Weather: Clear, few distant cirrus south and southwest thru west 
Temperature: 48F, Dew point: 26F, Wind: W at 09G17 kts
Wind: Variable WSW-WNW
Sea-level pressure: 29.79 inches Hg, falling
Visibility: 65 miles
BHO SA 1455 CLR 65 089/48/26/2809G17/979/ FEW CI DSNT S AND SW-W
WND 24V30/ 8/001 50012 
 
WEATHER SUMMARY FOR SATURDAY, NOVEMBER 3
 
TEMPERATURE (DEGREES F)
MAX.....46    NORMAL.....54
MIN.....40    NORMAL.....38
MEAN....43    NORMAL.....46
DEPARTURE FROM 30-YEAR NORMAL...........-3
TOTAL DEPARTURE FOR THE MONTH...........+2 [+0.5 DEGREES/DAY]  
 
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............51 N   AT 10:49 A.M.
                   AEROVANE.............50 NNW AT  5:01 P.M.
                   ASOS.................48 NNW AT  5:01 P.M.
                   DAVIS................46 N   AT 10:49 A.M.
FASTEST MILE FOR YESTERDAY..............31 WNW AT  9:17 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE...........30 WNW AT  9:16 P.M.        
MAXIMUM 2-MINUTE DAVIS AVERAGE..........31 WNW AT  8:47 P.M.      
AVERAGE WIND SPEED AND DIRECTION......22.7 N
                   ASOS...............20.3 
                   DAVIS..............21.6 N [360 deg]
* last of several occurrences...
 
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.95  DEPARTURE.....+0.80
                         ASOS..............0.94
TOTAL PRECIPITATION FOR NOVEMBER...........0.95  DEPARTURE.....+0.50
                         ASOS..............0.94   
TOTAL PRECIPITATION FOR THE YEAR..........36.49  DEPARTURE.....-5.98
                         ASOS.............35.77  
 
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 2007...CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
 
AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available
 
11/1  66/42/54/+7/0/050/08     37 S
11/2  50/37/44/-2/0/.../..     29 NE
11/3  46/40/43/-3/0.95/000/00  51 N  Aero 50 MPH NNW 
 
11/4  morning low temp. 37F; normal low temp. 38F
     
NEW DAILY RECORDS FOR NOVEMBER 2007:
 
None to date.
 
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
 
RECORDS FOR NOVEMBER 4
HIGH 77 IN 1987
LOW 22 IN 1891
PRECIP 3.27 INCHES IN 1910
SNOWFALL 6.4 IN 1945
PEAK GUST 73 WNW IN 1965
 
RECORDS FOR NOVEMBER 5
HIGH 76 IN 1994
LOW 18 IN 1908
PRECIP 4.26 INCHES IN 1955
SNOWFALL 1.5 IN 1892
PEAK GUST 69 W IN 2004
 
TODAY'S REPORT PREPARED By: Robert Skilling