BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS 02186
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 17, 2008
ALL TIMES ARE IN EASTERN STANDARD TIME
POSTPONED: EXTREME WEATHER PRESENTATION AND
BOOK SIGNING WITH AUTHOR H. MICHAEL MOGIL;
RESCHEDULED FOR SUNDAY MAY 4, 2008
On Sunday May 4, H. Michael Mogil, author of Tornadoes
and his new book Extreme Weather, will give an engaging
talk about all kinds of weather including blizzards,
hurricanes, tornadoes and more! For more information,
please visit our website: http://www.bluehill.org
Today's observations:
7 A.M.
Weather: Thin broken cirrus
Temperature: 22F, Dew point: 8F, Wind: SSE at 12G16 kt
Sea-level pressure: 30.36 inches Hg, rising
Visibility: 55 miles
6-hour min temp: 18F
BHO SA 1155 200 SCT 250 -BKN 55 282/22/8/1612G16/036/
8/001 51008 10022 20018
10 A.M.
Weather: Thin scattered cirrus
Temperature: 33F, Dew point: 15F, Wind: S at 15G23
Sea-level pressure: 30.33 inches Hg, falling
Visibility: 40 miles
BHO SA 1455 250 -SCT 40 272/33/15/1715G23/033/ 8/001 58010
WEATHER SUMMARY FOR SATURDAY, FEBRUARY 16
TEMPERATURE (DEGREES F)
MAX.....29 NORMAL.....36
MIN.....16 NORMAL.....20
MEAN....23 NORMAL.....28
DEPARTURE FROM 30-YEAR NORMAL..........- 5
TOTAL DEPARTURE FOR THE MONTH..........+73 [+4.6 DEGREES/DAY]
HEATING DEGREE DAYS
TOTAL HEATING UNITS FOR YESTERDAY............42 DEPARTURE......+ 5
TOTAL HEATING UNITS FOR THE MONTH...........534 DEPARTURE......-75
TOTAL HEATING UNITS FOR THE SEASON.........3771 DEPARTURE.....-375
TOTAL HEATING UNITS LAST SEASON TO DATE....3654 DIFFERENCE....+117
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY............32 W AT 12:42 A.M.
AEROVANE.............29 W AT 12:40 A.M.
ASOS.................31 W AT 12:42 A.M.
DAVIS................34 WSW AT 12:41 A.M.
FASTEST MILE FOR YESTERDAY..............24 W AT 1:43 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE...........22 WNW AT 1:44 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE..........24 W AT 12:43 A.M.
AVERAGE WIND SPEED AND DIRECTION......10.0 W
ASOS................9.7
DAVIS..............10.5 WNW [285 deg]
* last of sveral occurrences...
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..........6.37 DEPARTURE......+4.06
ASOS..............N/A #
TOTAL PRECIPITATION FOR THE YEAR...........10.24 DEPARTURE......+3.15
ASOS..............N/A #
# ASOS PRECIPITATION DATA ERROR ON 2/13/08
MONTHLY AND 2008 ASOS TOTAL NOT AVAILABLE
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M..........0.0 DEPARTURE.....-0.5
TOTAL SNOWFALL FOR THE MONTH................7.4 DEPARTURE.....-2.6
TOTAL SNOWFALL FOR THE SEASON..............51.5 DEPARTURE....+12.1
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2008 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, records not finalized
2/1 53/26/40/+14/1.16/0.1/000/00 54 SSE Aero 59 MPH SSE TSTM
2/2 51/34/43/+17/T/0/391/65 52 SW Aero 52 MPH SW
2/3 45/33/39/+13/0/0/381/63 21 SW
2/4 38/29/34/+8/0/0/006/01 18 SE
2/5 45/33/39/+12/0.42/0/000/00 36 SE Aero 37 MPH SE
2/6 46/34/40/+13/0.88/0/000/00 36 NE Aero 33 MPH NE TSTM
2/7 34/26/30/+3/0.59/1.9/000/00 40 NE Aero 40 MPH NE TSTM
2/8 28/24/26/-1/0.08/0.5/000/00 21 W
2/9 36/21/29/+2/0.09/1.0/118/19 30 ESE
2/10 40/11/26/-1/0.08/0.9/090/11 56 W Aero 61 MPH W
2/11 22/7/15/-12/0/0/612/98 56 W Aero 60 MPH W
2/12 26/9/18/-10/0.27/2.0/.../.. 25 W
2/13 53/22/38/+10/2.80/1.0/000/00 52 S Aero 54 MPH S
2/14 36/26/31/+3/0/0/.../.. 39 WNW
2/15 46/24/35/+7/0/0/.../.. 47 W Aero 50 MPH W
2/16 29/16/23/-5/0/0/.../.. 32 W
NEW DAILY RECORDS FOR FEBRUARY 2008:
2/13 - New record daily precipitation 2.80 inches;
surpasses previous record of 1.90 inches in 1966
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 17
HIGH 61F IN 1981
LOW -16F IN 1896
PRECIP 1.86 INCHES IN 2003
SNOWFALL 20.0 INCHES IN 2003
PEAK GUST 72 MPH NW IN 1968
RECORDS FOR FEBRUARY 18
HIGH 65F IN 1981
LOW -10F IN 1958
PRECIP 1.97 INCHES IN 1887
SNOWFALL 9.2 INCHES IN 1952
PEAK GUST 65e MPH NNW IN 1952
TODAY'S REPORT PREPARED By: Andrew Hoell