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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, MARCH 08, 2005

BAROMETER DROPS UNDER 29 INCHES....FIRST TIME SINCE 28.95 INS.
IN JANUARY 2003....

As the barometer plunged down past 29 inches early this
afternoon a look back at the records shows the last time this
happened here was in January 2003 with 28.95 inches.  Prior to
that for a lower reading we have to go back to ten years ago
with 28.67 inches in February 1995.
Update:  As of 1:30 p.m. the pressure had dropped to 28.93 inches
so we now have lowest pressure in ten years!

TODAY'S OBSERVATIONS....

7 A.M.  overcast with 8 miles visibility with thin fog; temp. 40; dewpoint 37;
wind south at 20 gusting 29 mph; six hourly min. temp. 39; six hourly precip.
a trace; snow on ground 7 inches

BHO SA 1155 65 SCT E75 BKN 130 OVC 8 880/40/37/1717G25/917/
THN F PK WND 1628/13/ RB10E35/ 8/57/ 4/007 58020 MANUAL 6000/ 10041 20039

10 A.M. obscurement with fog and visibility 1/16 mile very light drizzle and fog;
temp/dewoint 41 deg; wind south at 12 mph; barometer 29.12 and falling;
3-hourly precip. 0.05 inch...

BHO SA 1455 W2 X 1/16L-F 860/41/41/1810/912/ VSBY LWRG RELB45 PCPN VRY LGT/
8//// 58020 ASOS 60007 MANUAL 6005/

1 P.M. obscurement with fog and visibility 1/16 mile and light rain and fog;
temp/dewpoint 41; wind nnw at estimated 03 mph; barometer 29.00 ins. falling;
6 hourly precip. 0.21 inch; six hourly max. temp. 42 deg.

BHO SA 1755 W2 X 1/16R-F 821/41/41/E3402/900/ 8//// 58039
MANUAL 6021/ ASOS 60022 10042 20039

WEATHER SUMMARY FOR MONDAY MARCH 07:

TEMPERATURE (DEGREES F)
MAX.....47    NORMAL.....42
MIN.....33    NORMAL.....25
MEAN....40    NORMAL.....33

DEPARTURE FROM 30-YEAR NORMAL......+  7
TOTAL DEPARTURE FOR THE MONTH......- 30  [ -4.5 DAILY ]

PRECIPITATION (INCHES) THROUGH THIS MORNING
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....TRACE  DEPARTURE....-0.15
                         ASOS..............0.00
TOTAL PRECIPITATION FOR THE MONTH..........0.53   DEPARTURE....-0.52
                         ASOS..............0.46
TOTAL PRECIPITATION FOR THE YEAR..........10.87   DEPARTURE....+0.98
                         ASOS.............10.12

SNOWFALL (INCHES) THROUGH THIS MORNING
TOTAL SNOWFALL 24 HRS ENDING 7 A.M........  0.0   DEPARTURE.....-0.5
TOTAL SNOWFALL FOR THE MONTH............... 3.6   DEPARTURE.... +0.2
TOTAL SNOWFALL FOR THE SEASON..............97.8   DEPARTURE....+49.0
TOTAL SNOW ON THE GROUND.................... 07   INS.

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY........45   S AT  6:20 P.M.
                   AEROVANE.........50 SSE AT  3:58 P.M.
                   ASOS.............45 SSE AT  3:58 P.M.
                   DAVIS............48   S AT  4:02 P.M.

FASTEST MILE FOR YESTERDAY......... N/A
MAXIMUM 2-MINUTE ASOS AVERAGE.......38   S AT  4:04 P.M.
DAVIS MAXIMUM 1-MINUTE AVERAGE......37 SSE AT  4:04 P.M.

OUR AVERAGE WIND SPEED AND DIRECTION..  N/A
THE ASOS AVERAGE SPEED AND DIRECTION....18.7 MPH   S [ 180 deg ]
THE DAVIS AVERAGE WIND SPEED AND DIR....18.0 MPH   S [ 190 deg ]

THE PRELIMINARY CLIMATE SUMMARY FOR MARCH 2005......
CALENDAR DAY DATA DATA REPORTED HERE ENDING MIDNIGHT:
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

3/1   29/23/26/-6/0.53/3.6/000/00         52 MPH NNE Aero 52 MPH NNE
3/2   33/20/27/-5/T/T/264/39              42 MPH W   Aero 45 MPH W
3/3   28/15/22/-10/0/0/640/94             43 MPH W   Aero 43 MPH W
3/4   31/12/22/-11/0/0/561/82             40 MPH W   Aero 44 MPH W
3/5   39/18/29/-4/0/0/679/99              29 MPH W
3/6   40/24/32/-1/0/0/.../..              42 MPH SSW Aero 44 MPH SSW
3/7   47/33/40/+7/0/0/.../..              45 MPH S   Aero 50 MPH SSE

3/8   morning low temp. 39 deg; a trace of rainfall; and
      7 inches of old snow remaining on the ground

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

RECORDS FOR MARCH 8
HIGH 63 IN 1942, 1995
LOW   2 IN 1986
PRECIP 1.73 INS. IN 1933
SNOWFALL 8.3 INS. IN 1941
PEAK GUST 68e MPH NE IN 1941

RECORDS FOR MARCH 9
HIGH 71 IN 2000
LOW   5 IN 1885, 1943, 1996
PRECIP 2.67 INS. IN 1998
SNOWFALL 6.3 INS. IN 2001
PEAK GUST 102e MPH S IN 1942 [RECORD FOR MONTH]

TODAY'S REPORT BY: Robert Skilling