Monday, November 6, 2023

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

MONDAY, NOVEMBER 6, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0623E
SUNSET:  1632E

MAINLY CLOUDY AND COOLER TODAY WITH A LIGHT ONSHORE WIND…

Clouds have been dominating the sky today with a low stratocumulus
deck doing the honors. It’s also quite a bit cooler today than
it was yesterday with temperatures only reaching the upper 40s to
50F degrees early this afternoon, which is below normal for this
time of year.

The dew point has held in the low to mid 30s today, thus enhancing
the chilliness of the air.

The wind has been on the light side once again today, starting
out of a northerly direction, then gradually veering to an easterly,
then southeasterly direction late this morning and early this
afternoon. The average speed so far for the day is only around 8mph.
The peak gust for the day so far has been 23mph, occurring before
1am.

Visibility was decent this morning at 60 miles, but has reduced to
only 40 miles early this afternoon with an increase in general
haziness.

The maximum temperature so far today is 50F, which is 4 degrees
below the normal high of 54F. The minimum temperature since
midnight is 40F, which is 3 degrees above the normal low of 37F.

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Today’s Observations:

7 A.M.
Weather: Overcast stratocumulus, few breaks in overcast distant W-NNE
and distant ESE-SE
Temperature: 40F; Dew Point: 32F; Relative Humidity: 71%
Wind: NNE @ 5 kts, wind light
Sea-level pressure: 1023.1 mb; 30.21 in. Hg: rising, then more slowly
Visibility: 60 miles
6-hr Max temp: 42F
6-hr Min temp: 40F
24-hr Precip:  0.00 inches
24-hr Snowfall: 0.0 inches
BHO SA 1155 E35 OVC 60 231/40/32/0305/021/ FEW BINOVC DSNT W-NNE
AND DSNT ESE-SE WND LGT/ 8/5// 51015 10042 20040

10 A.M.
Weather: Overcast stratocumulus, few breaks in overcast distant WNW-NE,
higher clouds visible distant NW-NE
Temperature: 44F; Dew Point: 34F; Relative Humidity: 67%
Wind: ENE @ 4 kts, wind light
Sea-level pressure: 1023.5 mb; 30.22 in. Hg: rising, then falling
Visibility: 60 miles
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E35 OVC 60 235/44/34/0604/022/ FEW BINOVC DSNT WNW-NE
HIER CLDS VSBL DSNT NW-NE WND LGT/ 8/5// 50004

1 P.M.
Weather: Broken stratocumulus, broken cirrus
Temperature: 49F; Dew Point: 36F; Relative Humidity: 61%
Wind: SE @ 5 kts, wind light and variable
Sea-level pressure: 1021.2 mb; 30.16 in. Hg: falling, then more slowly
Visibility: 40 miles, hazy
6-hr Max temp: 50F
6-hr Min temp: 40F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
BHO SA 1755 E35 BKN 250 BKN 40 212/49/36/1305/016/ HAZY WND L/V/
8/501 56023 10050 20040

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SUMMARY FOR SUNDAY, NOVEMBER 5, 2023

TEMPERATURE (DEGREES F)
MAX…….61   NORMAL…..54
MIN…….42   NORMAL…..37
MEAN……52   NORMAL…..46

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+6
TOTAL DEPARTURE FOR THE MONTH………………….-8 [-1.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………13  DEPARTURE……..-7
TOTAL HEATING UNITS FOR THE MONTH…………..101  DEPARTURE……..+7
TOTAL HEATING UNITS FOR THE SEASON………….451  DEPARTURE……-155
TOTAL HEATING UNITS LAST SEASON TO DATE……..439  DEPARTURE…….+12

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)……….E24 NNW  @  09:43 P.M.
VECTOR #1 (1-Sec)……….27 NNW  @  09:43 P.M.
VECTOR #2 (1-Sec)……….24 N    @  11:03 P.M.
DAVIS #1……………….25 NW   @  09:43 P.M.
DAVIS #2 ………………21 NNW  @  11:06 P.M.
RMY #1 (Instantaneous)…..27 NNW  @  09:43 P.M.
RMY #2 (Instantaneous)…..23 N    @  10:59 P.M.
MERLIN…………………23 NNW
RICHARDS (C5C) (Inst)……26      @  09:43 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 W    @  12:54 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17      @  09:46 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16      @  11:01 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 NW   @  09:46 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 N    @  11:01 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 NNW  @  09:45 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 N    @  11:01 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16      @  09:45 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………7.0 NW [168 total miles] VECTOR #1……………….7.9
VECTOR #2……………….8.4
DAVIS #1………………..7.9 NW
DAVIS #2………………..7.9 NNW
RMY #1………………….7.7 NW
RMY #2………………….8.2 NW
RICHARDS (C5C)…………..8.3

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH…………..0.01 DEPARTURE…..-0.73
TOTAL PRECIPITATION FOR THE YEAR…………..49.20 DEPARTURE…..+4.30

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……-0.2
TOTAL SNOWFALL FOR THE SEASON (2023-2024)…..TRACE DEPARTURE……-0.9

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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/…/..          23 ENE VEC1 21 ENE RMY 23
11/2  45/28/37/-10/0.00/0.0/…/..        23 NNW VEC1 23 NNW RMY 22
11/3  55/36/46/0/0.00/0.0/…/..          32 SW  VEC1 33 SSW RMY 33
11/4  59/44/52/+6/0.00/0.0/…/..         32 SW  VEC1 31 SW  RMY 32
11/5  61/42/52/+6/0.00/0.0/…/..         24 NNW VEC1 27 NNW RMY 27

11/6 The low since midnight is 40F, the daily normal low is 37F

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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 6
HIGH 72 IN 2020
LOW 22 IN 1951
PRECIP 1.72 INCHES IN 1907
SNOWFALL 6.0 IN 1894
PEAK GUST 63 W IN 1973

RECORDS FOR NOVEMBER 7
HIGH 75 IN 1938, 2020
LOW 21 IN 1894, 1930
PRECIP 2.02 INCHES IN 1953
SNOWFALL 3.5 IN 2012
PEAK GUST 69e ENE IN 1953

TODAY’S REPORT PREPARED BY: Matt Douglas