Friday, November 11, 2016
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 11, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
ARCTIC COLD FRONT BRINGS GUSTY NW WINDS,
TEMPS EXPECTED TO PLUMMET WITH ITS PASSAGE
Winds began to increase late this morning with the passage of a cold
front and continued to gust above 25 knots through the early afternoon.
The peak gust by 1:00PM EST was 32 kts (37 MPH) WNW at 12:53 PM.
Temperatures rose to 59F by the last observation and had not yet begun to
drop from the arrival of arctic air behind the front. Visibility had
improved to 70 miles by late morning. Clear morning skies turned partly
cloudy with scattered cumulus as the cold front passed.
7 A.M.
Weather: Few altocumulus SW-NE
Temperature: 47F; Dew Point: 31F; Wind: SW at 13G21 kts
Sea-level pressure: 29.50 ins. Hg, falling then rising
Visibility: 35 miles
6-hr Max temp: 47F
6-hr Min temp: 44F
24-hr precip: 0.00 in.
BHO SA 1155 CLR 35 991/47/31/2313G21/950/ FEW AC SW-NE/
8/030 55004 10047 20044
10 A.M.
Weather: Few cumulus SE-NE
Temperature: 56F; Dew Point: 34F; Wind: W at 15G24 kts
Peak Wind: 26 kts (30 MPH) W at 9:24 AM EST
Sea-level pressure: 29.53 ins. Hg, rising then steady
Visibility: 70 miles
BHO SA 1455 CLR 70 000/56/34/2815G24/953/ FEW CU SE-NE PK
WND 2626/24/ 8/100 51009
1 P.M.
Weather: Scattered cumulus
Temperature: 56F; Dew Point: 32F; Wind: WNW at 21G32 kts
Peak Wind: 32 kts (37 MPH) WNW at 12:53PM EST
Sea-level pressure: 29.59 ins. Hg, rising, then more quickly
Visibility: 70 miles
6-hr Max. temp: 59F
6-hr Min. temp: 47F
BHO SA 1755 54 SCT 70 022/56/32/3021G32/959/ PK WND 3032/53/
8/100 53022 10059 20047
SUMMARY FOR THURSDAY, NOVEMBER 10, 2016
TEMPERATURE (DEGREES F)
MAX…..52 NORMAL…..52
MIN…..34 NORMAL…..35
MEAN….43 NORMAL…..44
DEPARTURE FROM 30-YEAR NORMAL……………………-1
TOTAL DEPARTURE FOR THE MONTH…………………..+25 [+2.3 DEGREES/DAY]
COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0 DEPARTURE………..0
TOTAL COOLING UNITS FOR THE MONTH……………0 DEPARTURE………..0
TOTAL COOLING UNITS FOR THE SEASON…………901 DEPARTURE……..+299
TOTAL COOLING UNITS LAST SEASON TO DATE…….811 DIFFERENCE……..+90
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..22 DEPARTURE……….+1
TOTAL HEATING UNITS FOR THE MONTH………….175 DEPARTURE………-25
TOTAL HEATING UNITS FOR THE SEASON…………596 DEPARTURE……..-167
TOTAL HEATING UNITS LAST SEASON TO DATE…….538 DIFFERENCE……..+42
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….28 SSW AT 7:40 P.M.
ASOS……………………31 SSW AT 7:41 P.M.
DAVIS…………………..30 SSW AT 7:40 P.M. RMY 31
FASTEST MILE FOR YESTERDAY…………………22 SSW AT 9:33 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………22 SSW AT 9:52 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..22 SSW AT 9:52 P.M.
AVERAGE WIND SPEED AND DIRECTION………….11.3 SSW
ASOS………………….11.4
DAVIS…………………10.3 WSW [250 Deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.05 DEPARTURE……-1.51
ASOS…………..0.07
TOTAL PRECIPITATION FOR THE YEAR……….34.41 DEPARTURE…..-10.92
ASOS………….34.77
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
11/1 55/29/42/-4/0.00/…/.. 22 SSE AERO 22 S RMY N/A
11/2 69/45/57/+11/0.00/…/.. 24 SSW AERO 24 S RMY 26
11/3 65/49/57/+11/0.01/…/.. 38 W AERO 41 W RMY 38
11/4 56/35/46/+1/0.00/…/.. 26 NW AERO 26 NW RMY 30
11/5 55/32/44/-1/0.00/…/.. 24 W AERO 23 W RMY 24
11/6 49/39/44/-1/0.04/…/.. 23 N AERO 23 N RMY 23
11/7 46/33/40/-5/0.00/…/.. 21 N AERO 21 N RMY 20
11/8 64/36/50/+6/0.00/…/.. 17 W AERO 15 SSW RMY N/A
11/9 60/43/52/+8/T/…/.. 22 NNW AERO 22 NW RMY N/A
11/10 52/34/43/-1/0.00/…/.. 28 SSW AERO 30 SSW RMY 31
11/11 Low temp since midnight is 44F; normal low is now 35F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 11
HIGH 68 IN 1984
LOW 17 IN 1956
PRECIP 1.14 INCHES IN 1991
SNOWFALL 2.5 IN 1986
PEAK GUST 64 NW IN 1962
RECORDS FOR NOVEMBER 12
HIGH 74 IN 1909
LOW 18 IN 1926
PRECIP 3.25 INCHES IN 1947
SNOWFALL 8.1 INCHES IN 1987
PEAK GUST 79e MPH NW IN 1947
TODAY’S REPORT PREPARED BY: Cecilia Borries-Strigle
