BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, OCTOBER 9, 2004
ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted]

DENSE EARLY MORNING FOG LIFTS TO PARTIAL SUNSHINE...
Sunrise arrived today with the summit in very dense fog that
dropped the visibility to zero near 8 AM EDT.  This began to
lift within an hour, with the sun occasionally breaking through
dense cirrus by late morning.  By early afternoon, the partial
sunshine has warmed the temperature to 70 degrees and visibility
has climbed to more than 30 miles.

Today's observations:

8 A.M. EDT
Weather: Sky obscured with heavy fog and 0 visibility
Temperature: 57F, Dewpoint: 57F, Wind: S 16 mph,
Sea-level pressure: 30.22 inches, steady
BHO SA 1155 W1 X 0F 234/57/57/1914/022/ 8//// 54000 10057
20056

11 A.M. EDT
Weather: Overcast with stratocumulus and cirrostratus
Temperature: 64F, Dew Point: 54F, Wind: SSW 20 mph
Visibility: 20 miles
BHO SA 1455 15 SCT 180 BKN 220 OVC 20 224/64/54/2017/019/
BINOVC E THN SPTS IOVC ALQDS SUN DMLY VSBL/ 8/508 58010



WEATHER SUMMARY FOR FRIDAY, OCTOBER 8:

TEMPERATURE (DEGREES F)
MAX.....74    NORMAL.....63    ASOS.....74 AT 1:42 P.M.
MIN.....54    NORMAL.....45    ASOS.....54 AT 6:19 A.M.
MEAN....64    NORMAL.....54
DEPARTURE FROM 30-YEAR NORMAL.....+10
TOTAL DEPARTURE FOR THE MONTH......+6  (+0.6 DEGREES/DAY)

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........23 S AT 11:53 P.M.
                   AEROVANE.........25 S AT 11:53 P.M.
                   ASOS.............23 S AT 10:45 P.M.
                   DAVIS............26 S AT 7:16 P.M.
FASTEST MILE FOR YESTERDAY..........18 S AT 11:44 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE.......18 S AT 11:53 P.M.
AVERAGE WIND SPEED AND DIRECTION..11.8 S
                   ASOS...........12.0

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE....-0.14
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.01   DEPARTURE....-1.11
                         ASOS..............0.01*
TOTAL PRECIPITATION FOR THE YEAR..........42.27   DEPARTURE....+3.55
                         ASOS.............40.61*
*New ASOS weighing gage installed 6/24/04 replaced former tipping gage.


PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2004......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

10/1  68/51/60/+3/0/591/84    16 MPH ESE
10/2  68/52/60/+4/0.01/056/08 22 MPH S
10/3  59/46/53/-3/0/621/89    27 MPH NNW
10/4  68/46/57/+1/0/626/90    23 MPH W
10/5  55/40/48/-7/0/665/96    32 MPH NW   Aero 35 MPH NW
10/6  61/37/49/-6/0/669/97    23 MPH SSW
10/7  71/46/59/+4/0/.../..    17 MPH WSW
10/8  74/54/64/+10/0/.../..   23 MPH S
10/9  ...overnight low 56

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR OCTOBER 9
HIGH 81 IN 1909
LOW  29 IN 1907,1937
PRECIP 2.54 INCHES IN 1976
SNOWFALL 0.2 INCHES IN 1888
PEAK GUST 81e MPH S IN 1976 (RECORD FOR MONTH)

RECORDS FOR OCTOBER 10
HIGH 85 IN 1949
LOW  27 IN 1929
PRECIP 2.02 INCHES IN 1998
SNOWFALL 6.8 INCHES IN 1979 (RECORD FOR MONTH)
PEAK GUST 59 MPH WNW IN 1958

TODAY'S REPORT BY: Mike Iacono