Thursday, November 16, 2023

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

THURSDAY, NOVEMBER 16, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0636E
SUNSET:  1622E

ABUNDANT SUNSHINE WITH UNSEASONABLY MILD TEMPERATURES TODAY…

What a brilliant day it is today. Plenty of bright sunshine is
being observed with only a few high thin wispy clouds floating
by aloft.

The temperature has reached the 60F degree mark early this
afternoon. This is above normal for a change as the normal high
for today is 50F. With the dew point holding in the mid 30s today,
it has been just a delightful feel out of doors, perfect for a
walk or hike!

Winds have been on a diminishing trend with gusty conditions just
after midnight, gradually decreasing to light speeds by the mid
morning hours. The average speed for the day is around 11mph,
however the average for the past 3 hours has only been around 5mph.
The peak gust for the day was just after midnight with a value of
30mph.

Visibility has been limited to around 30 miles all day due to
general haziness.

The maximum temperature so far today is 60F, which is 10 degrees
above the normal high of 50F. The minimum temperature since
midnight is 40F, which is 6 degrees above the normal low of 34F.

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Today’s Observations:

7 A.M.
Weather: Clear, few cirrus distant N
Temperature: 40F; Dew Point: 35F; Relative Humidity: 80%
Wind: W @ 11 kts
Sea-level pressure: 1023.2 mb; 30.22 in. Hg: rising, then more rapidly
Visibility: 30 miles, hazy
6-hr Max temp: 44F
6-hr Min temp: 40F
24-hr Precip:  0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 30 232/40/35/2611/022/ FEW CI DSNT N HAZY/
8/001 53007 10044 20040

10 A.M.
Weather: Clear, few cirrus distant WSW
Temperature: 51F; Dew Point: 35F; Relative Humidity: 52%
Wind: W @ 6 kts, wind light
Sea-level pressure: 1024.0 mb; 30.24 in. Hg: rising unsteadily
Visibility: 30 miles, hazy
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 30 240/51/35/2806/024/ FEW CI DSNT WSW HAZY WND LGT/
8/001 52008

1 P.M.
Weather: Clear, few cirrus all quadrants
Temperature: 60F; Dew Point: 36F; Relative Humidity: 40%
Wind: WSW @ 5 kts, wind light and variable
Sea-level pressure: 1022.5 mb; 30.19 in. Hg: falling, then more rapidly
Visibility: 30 miles, hazy
6-hr Max temp: 60F
6-hr Min temp: 40F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 30 225/60/36/2505/019/ FEW CI ALQDS HAZY WND L/V/
8/001 58015 10060 20040

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SUMMARY FOR WEDNESDAY, NOVEMBER 15, 2023

TEMPERATURE (DEGREES F)
MAX…….50   NORMAL…..50
MIN…….30   NORMAL…..34
MEAN……40   NORMAL…..42

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….-2
TOTAL DEPARTURE FOR THE MONTH…………………-34 [-2.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………25  DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH…………..341  DEPARTURE…….+33
TOTAL HEATING UNITS FOR THE SEASON………….691  DEPARTURE……-129
TOTAL HEATING UNITS LAST SEASON TO DATE……..587  DEPARTURE……+104

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)……….E30 SW   @  10:42 P.M.
VECTOR #1 (1-Sec)……….30 SW   @  10:42 P.M.
VECTOR #2 (1-Sec)……….30 WSW  @  11:50 P.M.
DAVIS #1……………….29 SW   @  10:42 P.M.
DAVIS #2 ………………30 W    @  11:59 P.M.
RMY #1 (Instantaneous)…..31 SW   @  10:42 P.M.
RMY #2 (Instantaneous)…..32 SW   @  10:42 P.M.
MERLIN…………………29 SW
RICHARDS (C5C) (Inst)……30      @  11:59 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 SW   @  10:55 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..23      @  10:44 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..23      @  10:44 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………23 SSW  @  10:44 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 SW   @  10:44 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..22 SW   @  10:44 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 SW   @  10:44 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………20      @  11:06 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.0 SW [239 total miles] VECTOR #1………………10.4
VECTOR #2………………10.8
DAVIS #1……………….10.1 WSW
DAVIS #2……………….10.5 WSW
RMY #1…………………10.3 WSW
RMY #2…………………10.8 W
RICHARDS (C5C)………….10.1

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH…………..0.17 DEPARTURE…..-2.00
TOTAL PRECIPITATION FOR THE YEAR…………..49.36 DEPARTURE…..+3.03

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-1.3

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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 49/38/44/0/0.00/0.0/024/04          23 W   VEC1 23 W   RMY 22
11/11 49/30/40/-3/0.00/0.0/590/99         29 NW  VEC1 26 NW  RMY 30
11/12 41/27/34/-9/0.00/0.0/475/80         20 N   VEC1 19 N   RMY 19
11/13 44/24/34/-9/T/T/456/77              20 NNW VEC1 20 N   RMY 19
11/14 47/31/39/-3/0.00/0.0/342/58         29 NW  VEC1 29 NW  RMY 29
11/15 50/30/40/-2/0.00/0.0/475/81         30 SW  VEC1 30 SW  RMY 31

11/16 The low since midnight is 40F, the daily normal low is 34F

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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 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