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Saturday, February 10, 2024

February 10, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SATURDAY, FEBRUARY 10, 2024 ALL TIMES ARE…

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

SATURDAY, FEBRUARY 10, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0648E
SUNSET:  1709E

BALMY FEBRUARY DAY WITH A MIX OF SUN AND CLOUDS….

It is quite warm outside, especially considering the time of
year! It remains possible that we will break or tie the record for high
temperature today, with the old record being 56F set in 1909. As of the
1pm observation we are 2 degrees shy; our high temperature so far is 54F.

We began this morning with dense fog, which dissipated by late morning.
Since then, sunshine has been somewhat limited by high level clouds
moving in from the west.

Winds have been steady today, with an average of around 12mph primarily
out of the south-southwest. Our peak gust so far is around 22mph, occurring
a little after 9:30am.

Visibility was poor this morning due to fog, being limited to 1/16 mile.
Since then, it has improved to 30 miles, but it remains hazy.

The maximum temperature so far today is 54F degrees, which is
18 degrees above the normal high of 36F. The minimum temperature
since midnight is 35F degrees, which is 16 degrees above the normal
low of 19F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Sky partially obscured, fog, thin scattered cirrus
Temperature: 36F; Dew Point: 36F; Relative Humidity: 100%
Wind: SSW @ 11 kts
Sea-level pressure: 1011.4 mb; 29.87 in. Hg: falling, then steady
Visibility: 1/16 mile, fog
6-hr Max temp: 37F
6-hr Min temp: 36F
24-hr Precip: 0.00 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 -X 250 -SCT 1/16F 114/36/36/2111/987/ SUN DMLY VSBL/
8/601 56006 10037 20036

10 A.M.
Weather: Broken cirrostratus, thin broken cirrus
Temperature: 45F; Dew Point: 40F; Relative Humidity: 100%
Wind: SW @ 10 kts
Sea-level pressure: 1011.0 mb; 29.85 in. Hg: rising, then falling
Visibility: 20 miles, hazy
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E220 BKN 250 -BKN 20 110/45/40/2310/985/ HAZY/ 8/006 58004

1 P.M.
Weather:
Temperature: 54F; Dew Point: 40F; Relative Humidity: 59%
Wind: SW @ 7 kts
Sea-level pressure: 1008.4 mb; 29.78 in. Hg: falling, then more slowly
Visibility: 30 miles, hazy
6-hr Max temp: 54F
6-hr Min temp: 35F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E200 BKN 250 -BKN 30 084/54/40/2307/978/ HAZY/ 8/006
56026 10054 20035

————————————————————–

SUMMARY FOR FRIDAY, FEBRUARY 9, 2024

TEMPERATURE (DEGREES F)
MAX…….47   NORMAL…..36
MIN…….30   NORMAL…..18
MEAN……39   NORMAL…..27

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………+12
TOTAL DEPARTURE FOR THE MONTH……………………+63 [+6.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………26  DEPARTURE…….-12
TOTAL HEATING UNITS FOR THE MONTH…………..283  DEPARTURE…….-63
TOTAL HEATING UNITS FOR THE SEASON…………3249  DEPARTURE……-500
TOTAL HEATING UNITS LAST SEASON TO DATE…….3168  DEPARTURE…….+81

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)……….E31 SSW  @  04:33 P.M.
VECTOR #1 (1-Sec)……….31 SSW  @  04:33 P.M.
VECTOR #2 (1-Sec)……….29 S    @  05:02 P.M.
DAVIS #1……………….31 S    @  04:03 P.M.
DAVIS #2 ………………34 S    @  03:58 P.M.
RMY #1 (Instantaneous)…..31 SSW  @  04:33 P.M.
RMY #2 (Instantaneous)…..31 S    @  01:29 P.M.
MERLIN…………………28 S
RICHARDS (C5C) (Inst)……29      @  04:33 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………22 SSW  @  03:44 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..22      @  03:56 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..23      @  04:34 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 S    @  04:34 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 S    @  04:35 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..22 SSW  @  03:56 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 S    @  04:34 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………22      @  03:56 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……13.7 SSW [328 total miles] VECTOR #1…………….13.9
VECTOR #2…………….14.3
DAVIS #1……………..13.4 SSW
DAVIS #2……………..14.7 SSW
RMY #1……………….13.7 SSW
RMY #2……………….14.6 SSW
RICHARDS (C5C)………..13.5

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.03 DEPARTURE…..-1.18
TOTAL PRECIPITATION FOR THE YEAR (2024)……..9.27 DEPARTURE…..+3.56

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-6.1
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……20.9 DEPARTURE…..-18.9

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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

2/1   40/30/35/+9/0.00/0.0/012/02         25 SW  VEC1 24 SW  RMY 26
2/2   39/31/35/+9/0.03/T/000/00           23 N   VEC1 24 N   RMY 25
2/3   35/26/31/+5/0.00/0.0/338/56         26 N   VEC1 26 NNW RMY 28
2/4   39/20/30/+4/0.00/0.0/607/100        28 NNW VEC1 28 NNW RMY 27
2/5   39/22/31/+4/0.00/0.0/597/98         29 N   VEC1 29 N   RMY 30
2/6   35/26/31/+4/0.00/0.0/251/41         26 N   VEC1 26 N   RMY 26
2/7   39/26/33/+6/0.00/0.0/436/71         21 NE  VEC1 21 NE  RMY 24
2/8   44/29/37/+10/0.00/0.0/…/..        16 S   VEC1 16 S   RMY 16
2/9   47/30/39/+12/0.00/0.0/…/..        31 SSW VEC1 31 SSW RMY 31

2/10 The low since midnight is 35F, the daily normal low is 19F

————————————————————–

FEBRUARY DAILY RECORDS TO DATE

NONE…

————————————————————–

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

RECORDS FOR FEBRUARY 10
HIGH 56F IN 1909
LOW -8F IN 1899
PRECIP 1.34 INS. IN 1909
SNOWFALL 12.1 INS. IN 1926
PEAK GUST 64 MPH W IN 2001

RECORDS FOR FEBRUARY 11
HIGH 60F IN 1981
LOW -10F IN 1899
PRECIP 1.07 INCHES IN 1955
SNOWFALL 9.6 INCHES IN 1933
PEAK GUST 95 MPH S IN 1981

TODAY’S REPORT PREPARED BY: Joshua Polen

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