Tuesday, November 16, 2021

| November 16, 2021 | Reply

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

TUESDAY, NOVEMBER 16, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0637E
SUNSET:  1621E

PLENTY OF SUNSHINE, BUT A CHILLY BREEZE AT BLUE HILL….

Overall it’s been a beautiful day. Plenty of sunshine with
only a few decorative stratocumulus clouds dotting the sky.
Temperatures are on the chilly side, and with the dew point
down in the mid 20s, it is adding quite a chill to the air.

Also adding to the chill, winds have been gusty again today.
Wind speeds have been averaging around 15mph with a peak
gust of 36mph so far. The wind chill has been pretty
much in the mid-upper 30s!

Visibility has been excellent all day with a very crisp 80
miles being observed!

The high so far today is 46F, 4 degrees below the normal max
of 50F. The low since midnight is 31F, 3 degrees below the
normal low of 34F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus offshore distant NE-SE-SSW and distant NW-N,
few altocumulus standing lenticular distant N
Temperature: 31F; Dew Point: 25F; Relative Humidity: 78%
Wind: W @ 12G18 kts
Sea-level pressure: 1015.1 mb; 29.98 in. Hg: rising, then more slowly
Visibility: 80 miles
6-hr Max temp: 36F
6-hr Min temp: 31F
24-hr Precip: 0.00 ins.
BHO SA 1155 CLR 80 151/31/25/2812G18/998/ FEW SC OFFSHR DSNT NE-SE-SSW
AND DSNT NW-N FEW ACSL DSNT N/ 8/540 51025 10036 20031

10 A.M.
Weather: Clear, few stratocumulus distant all quadrants
Temperature: 40F; Dew Point: 24F; Relative Humidity: 52%
Wind: WNW @ 18G31 kts, peak wind WNW 36 mph at 9:50 A.M.
Sea-level pressure: 1016.7 mb; 30.02 in Hg; rising, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 CLR 80 167/40/24/2918G31/002/ FEW SC DSNT ALQDS PK WND 2931/50/
8/500 51016

1 P.M.
Weather: Clear, few stratocumulus all quadrants
Temperature: 45F, Dew point: 24F; Relative Humidity: 43%
Wind: WNW @ 13G23 kts
Sea-level pressure: 1016.3 mb; 30.01 in Hg; falling, then steady
Visibility: 80 miles
6-hr Max temp: 46F
6-hr Min temp: 31F
6-hr Precip: 0.00 ins.
BHO SA 1755 CLR 80 163/45/24/2913G23/001/ FEW SC ALQDS/ 8/500 56004 10046 20031

SUMMARY FOR MONDAY, NOVEMBER 15, 2021

TEMPERATURE (DEGREES F)
MAX…….48     NORMAL…..50
MIN…….36     NORMAL…..34
MEAN……42     NORMAL…..42

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………   0
TOTAL DEPARTURE FOR THE MONTH……………………… +32 [+1.9 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………23  DEPARTURE…….. 0
TOTAL HEATING UNITS FOR THE MONTH…………..275  DEPARTURE…….-33
TOTAL HEATING UNITS FOR THE SEASON………….602  DEPARTURE……-218
TOTAL HEATING UNITS LAST SEASON TO DATE……..643  DEPARTURE…… -41

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….35 W   @  9:37 P.M.
AEROVANE……………….36 W   @  9:37 P.M.
VECTOR #2 (Instantaneous)..39     @  9:37 P.M.
DAVIS #2 ………………33 W   @  9:37 P.M.
RMY #2 (Instantaneous)…..38 W   @  9:37 P.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………23 W   @  9:50 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..23     @  9:38 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 W   @  9:38 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 W   @  9:38 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE…….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE…..OUT OF SERVICE D/T RENOVATIONS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……. 12.6 W  [303 total miles]
VECTOR #2…………….. 13.3
DAVIS #2……………… 13.4 W
RMY #2……………….. 13.2 W
RMY #1…………..OUT OF SERVICE D/T RENOVATIONS
ASOS…………….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1………..OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…………OUT OF SERVICE D/T RENOVATIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….0.00  DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….1.42  DEPARTURE…..-0.75
TOTAL PRECIPITATION FOR THE YEAR………….56.27  DEPARTURE….+10.20

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………….0.0  DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE SEASON (2021-2022)……0.0  DEPARTURE……-1.3

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/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

11/01   59/41/50/+3/0.00/0.0/…/..      38 WNW AERO 39 WNW RMY 39
11/02   56/40/48/+1/0.00/0.0/…/..      25 SW  AERO 25 SW  RMY 26
11/03   51/35/43/-3/0.00/0.0/…/..      28 W   AERO 25 W   RMY 27
11/04   49/31/40/-6/0.00/0.0/…/..      17 NNE AERO 17 NNW RMY 16
11/05   49/32/41/-5/0.00/0.0/…/..      25 NW  AERO 24 NW  RMY 24
11/06   51/34/43/-2/0.00/0.0/…/..      18 SSW AERO 17 SW  RMY 19
11/07   55/37/46/+1/0.00/0.0/…/..      17 W   AERO 17 W   RMY 16
11/08   60/38/49/+4/0.00/0.0/…/..      20 N   AERO 18 N   RMY 19
11/09   69/45/57/+13/0.00/0.0/…/..     21 W   AERO 21 W   RMY 22
11/10   60/44/52/+8/0.00/0.0/…/..      36 NW  AERO 35 NW  RMY 35
11/11   56/40/48/+5/0.00/0.0/…/..      26 SE  AERO 28 SE  RMY 27
11/12   61/45/53/+10/1.00/0.0/…/..     72 SSE AERO 78 SSE RMY 76
11/13   60/36/48/+5/0.32/0.0/…/..      53 SW  AERO 53 SW  RMY 54
11/14   47/33/40/-2/0.03/0.0/…/..      29 W   AERO 28 W   RMY 28
11/15   48/36/42/0/0.07/0.0/…/..       35 W   AERO 36 W   RMY 38

11/16  The low since midnight is 31F, the daily normal low is 34F

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

RECORDS FOR NOVEMBER 16
HIGH 73 IN 1927
LOW 8 IN 1933
PRECIP 2.25 INCHES IN 1981
SNOWFALL 2.0 IN 1913
PEAK GUST 78 S IN 1989

RECORDS FOR NOVEMBER 17
HIGH 74 IN 1928
LOW 10 IN 1924
PRECIP 1.92 INCHES IN 1920
SNOWFALL 1.0 INS IN 1980
PEAK GUST 61 SSE IN 2006

TODAY’S REPORT PREPARED BY: Matt Douglas

Category: Daily Discussions

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