Sunday, November 14, 2021

| November 14, 2021 | Reply

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

SUNDAY, NOVEMBER 14, 2021
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0634E
SUNSET:  1623E

INCREASINGLY CLOUDY AFTER AN ALMOST CLEAR START….

Yesterday’s storms left us 0.32 inches at the 7 A.M. observation.
Today was almost clear in the morning hours, but clouds started
to move in during the early afternoon hours. Wind is 10 mph on
average, with a max gust so far today of 28 mph this morning.

Dew points are in the low 30’s, giving us a cool westerly
breeze. Bundle up!

Visibility is good at the summit, being 70 miles on average.

The high so far today is 47F, 4 degrees below the normal max
of 51F. The low since midnight is 33F, 2 degrees below the
normal low of 35F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few distant cumulus E-S and W-N, few distant
cirrus W-N
Temperature: 33F; Dew Point: 31F; Relative Humidity: 93%
Wind: W @ 10G14 kts
Sea-level pressure: 1010.9 mb; 29.85 in. Hg: rising unsteadily
Visibility: 65 miles
6-hr Max temp: 36F
6-hr Min temp: 33F
24-hr Precip: 0.32 ins.
BHO SA 1155 CLR 65 109/33/31/2610G14/985/ FEW CU DSNT E-S AND W-N
FEW CI DSNT W-N/ 8/801 52020 70032 10036 20033

10 A.M.
Weather: Scattered cirrus, few distant cumulus SE-S and
WNW-NNW
Temperature: 43F; Dew Point: 33F; Relative Humidity: 68%
Wind: W @ 7 kts
Sea-level pressure: 1012.6 mb; 29.90 in Hg; rising, then more
slowly
Visibility: 70 miles
3-hr Precip: 0.00 ins.
BHO SA 1455 250 SCT 70 126/43/33/2707/990/ FEW CU DSNT SE-S AND
WNW-NNW/ 8/801 51017

1 P.M.
Weather: Scattered stratocumulus, broken altocumulus, overcast
cirrostratus, breaks in overcast in all quadrants
Temperature: 45F, Dew point: 31F; Relative Humidity:57%
Wind: W @ 9G15 kts
Sea-level pressure: 1011.5 mb; 29.87 in Hg; falling unsteadily
Visibility: 65 miles
6-hr Max temp: 47F
6-hr Min temp: 33F
6-hr Precip: 0.00 ins.
BHO SA 1755 40 SCT 160 BKN 220 OVC 65 115/45/31/2709G15/987/ BINOVC
ALQDS/ 8/878 57011 10047 20033

SUMMARY FOR SATURDAY, NOVEMBER 13, 2021

TEMPERATURE (DEGREES F)
MAX…….60     NORMAL…..51
MIN…….36     NORMAL…..35
MEAN……48     NORMAL…..43

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………  +5
TOTAL DEPARTURE FOR THE MONTH………………………  +34 [+2.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………17  DEPARTURE……..-5
TOTAL HEATING UNITS FOR THE MONTH…………..227  DEPARTURE…….-36
TOTAL HEATING UNITS FOR THE SEASON………….554  DEPARTURE……-221
TOTAL HEATING UNITS LAST SEASON TO DATE……..598  DEPARTURE…… -44

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….53 SW  @  5:53 P.M.
AEROVANE……………….53 SW  @  5:46 P.M.
VECTOR #2 (Instantaneous)..54     @  5:52 P.M.
DAVIS #2 ………………51 SW  @  5:52 P.M.
RMY #2 (Instantaneous)…..54 SW  @  5:53 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………………35 SW  @  5:53 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..35     @  5:53 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………35 SW  @  5:53 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..35 SW  @  5:53 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……. 11.6 SE [279 total miles]
VECTOR #2…………….. 12.1
DAVIS #2……………… 11.9 SSW
RMY #2……………….. 12.0 S
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…….0.32  DEPARTURE…..+0.17
TOTAL PRECIPITATION FOR THE MONTH………….1.32  DEPARTURE…..-0.58
TOTAL PRECIPITATION FOR THE YEAR………….56.17  DEPARTURE….+10.37

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……-0.5
TOTAL SNOWFALL FOR THE SEASON (2021-2022)……0.0  DEPARTURE……-1.2

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/…./0.0/…/..     72 SSE AERO 78 SSE RMY 76
11/13   60/36/48/+5/…./0.0/…/..      53 SW  AERO 53 SW  RMY 54

11/14  The low since midnight is 33F, 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 14
HIGH 70 IN 1993
LOW 11 IN 1905
PRECIP 2.08 INCHES IN 2009
SNOWFALL 3.5 IN 1997, 2014
PEAK GUST 63 W IN 2003

RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 6.5 IN 2018
PEAK GUST 65 SSE IN 2008

TODAY’S REPORT PREPARED BY: Benjamin Turner

Category: Daily Discussions

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