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

DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, FEBRUARY 14, 2004
ALL TIMES ARE IN EASTERN STANDARD TIME

SUNNY AND WARM WEATHER TODAY TO BE REPLACED BY
ARCTIC AIR TONIGHT...
After a high temperature of 38 on Friday, the high so
far today has climbed to nearly 40 by 1 PM.  Much colder
air will arrive tonight following the passage of an arctic
cold front.  February precipitation has now fallen below
normal with just 1.71 inches through Friday, though the
month continues to average warmer than normal by more
than 2 degrees.  Precipitation for the year is now more
than three inches below normal.


Today's observations:

7 A.M.
Weather: Thin scattered cirrus, hazy; Visibility: 20 miles
Temperature: 29F, Dewpoint: 18F, Wind: SW 14 mph,
Sea-level pressure: 29.79 inches, rising
BHO SA 1155 250 -SCT 20 088/29/18/2312/979/ HAZY FEW LWR CI E/
8/001 53010 10032 20028

10 A.M.
Weather: Thin scattered cirrus, hazy;  Visibility: 25 miles
Temperature: 35F, Dew Point: 18F, Wind: WSW 16 mph, gusting to 25 mph
BHO SA 1455 250 -SCT 25 091/35/18/2414G22/980/ WND 21V27 PK WND
2526/13/ 8/001 51003

1 P.M.
Weather: Thin cirrus overcast with scattered lower cirrus, hazy
Temperature: 39F, Dew Point: 18F, Wind: W 17 mph, gusting to 27 mph
Sea-Level pressure: 29.76 inches, falling
BHO SA 1755 200 SCT 250 -OVC 25 077/39/18/2615G23/976/ HAZY WND 23V29
PK WND 2627/28/ 8/001 56014 10039 20029


WEATHER SUMMARY FOR FRIDAY, FEBRUARY 13:

TEMPERATURE (DEGREES F)
MAX.....38    NORMAL.....36    ASOS.....38 AT 3:05 PM
MIN.....26    NORMAL.....20    ASOS.....26 AT 7:32 AM
MEAN....32    NORMAL.....28
DEPARTURE FROM 30-YEAR NORMAL......+4
TOTAL DEPARTURE FOR THE MONTH.....+28  (+2.0 DEGREES/DAY)

HEATING DEGREE DAYS
TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......33   DEPARTURE.....-4
TOTAL HEATING DEGREE DAYS FOR THE MONTH......468   DEPARTURE....-31
TOTAL HEATING DEGREE DAYS FOR THE SEASON....4071   DEPARTURE....+36
TOTAL HEATING DEGREE DAYS FOR LAST SEASON...4261   DIFFERENCE..-190


PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........37 W AT 11:02 A.M.
                   AEROVANE.........37 W AT 11:02 A.M.
                   ASOS.............32 WSW AT 2:33 P.M.
FASTEST MILE FOR YESTERDAY..........27 W AT 2:32 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE.......26 W AT 2:34 P.M.
AVERAGE WIND SPEED AND DIRECTION..16.3 SW
                   ASOS...........16.4


PRECIPITATION (INCHES)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00   DEPARTURE....-0.14
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........1.71   DEPARTURE....-0.18
                         ASOS..............1.56
TOTAL PRECIPITATION FOR THE YEAR...........3.43   DEPARTURE....-3.24
                         ASOS..............2.96

SNOWFALL (INCHES)
TOTAL SNOWFALL FOR 24 HRS ENDING 7 A.M......0.0   DEPARTURE....-0.5
TOTAL SNOWFALL FOR THE MONTH................2.5   DEPARTURE....-4.0
TOTAL SNOWFALL FOR THE SEASON..............41.2   DEPARTURE....+5.6


PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY, 2004......CALENDAR DAY DATA

DATA REPORTED:
DATE  MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST

AERO: Aerovane recording wind system when significant
TSTM: Thunderstorm day
....: Data not yet available

2/1   31/09/20/-06/   0/  0/599/100   33 NW    Aerovane 38 MPH NW
2/2   37/18/28/+02/   0/  0/578/96    21 NNW
2/3   42/25/34/+08/0.51/0.2/000/00    47 SSE   Aerovane 49 MPH SSE
2/4   42/24/33/+07/   T/  0/564/93    46 W     Aerovane 47 MPH W
2/5   34/21/28/+01/   0/  0/451/74    33 WNW
2/6   33/24/29/+02/1.08/2.3/000/00    28 SSE
2/7   39/24/32/+05/0.12/  T/092/15    37 WNW
2/8   24/12/18/-09/   0/  0/616/100   59 WNW   Aerovane 62 MPH WNW
2/9   41/20/31/+04/   0/  0/279/45    47 SSW   Aerovane 48 MPH SSW
2/10  44/32/38/+11/   0/  0/546/88    31 WSW
2/11  35/21/28/+01/   0/  0/618/99    46 W     Aerovane 46 MPH W
2/12  35/16/26/-02/   0/  0/.../..    25 SW
2/13  38/26/32/+04/   0/  0/.../..    37 W
2/14  morning low 28


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

RECORDS FOR FEBRUARY 14
HIGH 56F IN 1949
LOW -08F IN 1979
PRECIP 1.95 INCHES IN 1940
SNOWFALL 11.0 INCHES IN 1914
PEAK GUST 83 MPH SSW IN 2000

RECORDS FOR FEBRUARY 15
HIGH 60F IN 1954
LOW -18F IN 1943
PRECIP 1.28 INCHES IN 1950
SNOWFALL 11.2 INCHES IN 1940
PEAK GUST 94e MPH WNW IN 1946


TODAY'S REPORT BY: Mike Iacono