Friday, November 10, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, NOVEMBER 10, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0628E
SUNSET: 1627E
OVERCAST, COOL, AND BREEZY TODAY AT GREAT BLUE HILL…
The morning started off cool and breezy and continued that way
for the remainder of the afternoon. Although our temperatures
were warmer than yesterday, it hasn’t felt that way with the
wind gusts.
Temperatures have remained below normal today, not quite making
it to 50F by the last daily observation. The dew points have
hovered in the mid 30’s which adding to the breeze has given
quite a raw feel to the air.
Today has been overall breezy with an average of about 12 mph so
far. The winds have shifted between West and WSW for most of the
day. Our peak gust recorded so far has been about 23 mph which
occurred before 1am.
Visibility started with about 30 miles for most of the morning and
improved to around 60 miles by the afternoon.
The maximum temperature so far today is 48F, which is 4 degrees
below the normal high of 52F. The minimum temperature since
midnight is 38F, which is 2 degrees above the normal low of 36F.
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Today’s Observations:
7 A.M.
Weather: Scattered altocumulus, broken cirrostratus, lightly
broken cirrus
Temperature: 39F; Dew Point: 37F; Relative Humidity: 90%
Wind: WSW @ 9 kts
Sea-level pressure: 1017.5 mb; 30.05 in. Hg: rising, then more
slowly
Visibility: 30 miles, thin fog all quadrants
6-hr Max temp: 39F
6-hr Min temp: 34F
24-hr Precip: 0.11 inches
24-hr Snowfall: 0.00 inches
BHO SA 1155 150 SCT 200 BKN 250 -BKN 30 175/39/37/2409/005/
THN F ALQDS 8/076 51018 70011 10039 20034
10 A.M.
Weather: Overcast altostratus, few lower stratocumulus distant
SE-SW-NNW, sun dimly visible
Temperature: 45F; Dew Point: 37F; Relative Humidity: 77%
Wind: W @ 10 kts
Sea-level pressure: 1018.2 mb; 30.07 in. Hg: rising steadily
Visibility: 30 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.00 inches
BHO SA 1455 130 OVC 30 182/45/37/2610/007/ FEW LWR SC DSNT
SE-SW-NNW SUN DIMLY VSBL 8/51/ 52007
1 P.M.
Weather: Overcast altostratus, few stratocumulus all quadrants,
virga ESE-SSW, sun dimly visible
Temperature: 47F; Dew Point: 36F; Relative Humidity: 65%
Wind: WSW @ 8 kts
Sea-level pressure: 1017.1 mb; 30.03 in. Hg: falling unsteadily
Visibility: 60 miles
6-hr Max temp: 48F
6-hr Min temp: 39F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.00 inches
BHO SA 1755 120 OVC 60 171/47/36/2508/003/ FEW SC ALQDS VIRGA ESE-SSW
SUN DIMLY VSBL 8/51/ 57011 10048 20039
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SUMMARY FOR THURSDAY, NOVEMBER 9, 2023
TEMPERATURE (DEGREES F)
MAX…….42 NORMAL…..52
MIN…….32 NORMAL…..36
MEAN……37 NORMAL…..44
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-7
TOTAL DEPARTURE FOR THE MONTH………………….-8 [-1.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………28 DEPARTURE……..+7
TOTAL HEATING UNITS FOR THE MONTH…………..182 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE SEASON………….532 DEPARTURE……-156
TOTAL HEATING UNITS LAST SEASON TO DATE……..487 DEPARTURE…….+45
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all Main Tower.
E=Estimated
F420C (Official)……….E20 WNW @ 11:57 P.M.
VECTOR #1 (1-Sec)……….20 WNW @ 11:49 P.M.
VECTOR #2 (1-Sec)……….19 WNW @ 11:44 P.M.
DAVIS #1……………….19 WNW @ 11:50 P.M.
DAVIS #2 ………………18 WNW @ 11:45 P.M.
RMY #1 (Instantaneous)…..20 WNW @ 11:49 P.M.
RMY #2 (Instantaneous)…..20 NW @ 10:03 P.M.
MERLIN…………………20 W
RICHARDS (C5C) (Inst)……20 @ 11:49 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………14 NW @ 11:47 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14 @ 11:46 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14 @ 11:47 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 W @ 11:50 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………14 WNW @ 11:50 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..14 ESE @ 11:06 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 WNW @ 11:47 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………14 @ 11:50 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………6.8 WNW [162 total miles]
VECTOR #1……………….7.8
VECTOR #2……………….8.2
DAVIS #1………………..7.7 NNW
DAVIS #2………………..7.7 NNE
RMY #1………………….7.7 NNW
RMY #2………………….8.2 NNW
RICHARDS (C5C)…………..8.3
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.11 DEPARTURE…..-0.04
TOTAL PRECIPITATION FOR THE MONTH…………..0.17 DEPARTURE…..-1.15
TOTAL PRECIPITATION FOR THE YEAR…………..49.36 DEPARTURE…..+3.88
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.00 DEPARTURE…….0.0
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-0.3
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-1.0
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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
PEAK GUST: F420C (Official)
VEC1: Vector #1 1-second gust
RMY: R.M. Young #1 wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
11/1 42/31/37/-10/0.01/T/056/09 23 ENE VEC1 21 ENE RMY 23
11/2 45/28/37/-10/0.00/0.0/618/100 23 NNW VEC1 23 NNW RMY 22
11/3 55/36/46/0/0.00/0.0/541/88 32 SW VEC1 33 SSW RMY 33
11/4 59/44/52/+6/0.00/0.0/049/08 32 SW VEC1 31 SW RMY 32
11/5 61/42/52/+6/0.00/0.0/360/59 24 NNW VEC1 27 NNW RMY 27
11/6 50/40/45/+/0.00/0.0/067/11 28 S VEC1 27 S RMY 25
11/7 65/46/56/+11/0.05/0.0/272/45 38 WNW VEC1 37 WNW RMY 37
11/8 48/33/41/-4/0.00/0.0/440/73 36 NNW VEC1 38 NNW RMY 39
11/9 42/32/37/+7/0.11/T/000/00 20 WNW VEC1 20 WNW RMY 20
11/10 The low since midnight is 38F, the daily normal low is 36F
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NOVEMBER DAILY RECORDS TO DATE
11/1 TIED RECORD FOR SNOWFALL WITH A TRACE, TIED WITH 1906, 1951
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR NOVEMBER 10
HIGH 75 IN 1931
LOW 20 IN 2004
PRECIP 2.11 INCHES IN 1888
SNOWFALL 2.2 IN 1987
PEAK GUST 83e S IN 1942
RECORDS FOR NOVEMBER 11
HIGH 73 IN 2020
LOW 17 IN 1956
PRECIP 1.14 INCHES IN 1991
SNOWFALL 2.5 IN 1986
PEAK GUST 64 NW IN 1962
TODAY’S REPORT PREPARED BY: Amanda Joly
