Sunday, February 11, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
SUNDAY, FEBRUARY 11, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0647E
SUNSET: 1711E
MAINLY CLOUDY SKIES, A BIT COOLER, AND BRISK TODAY….
While today is still on the mild side, a cold front pushed
through last evening bringing a bit of a cooler air mass into
the region. The front was accompanied by some light rain
showers which deposited 0.02″ of water in the rain gauge.
Skies have remained mainly on the cloudy side with only some
filtered sunshine through high clouds today.
A brisk west-northwest wind has been blowing today as well with
frequent gusts over 20mph. The average speed so far for the day
is around 13mph. The peak gust so far is 30mph, occurring at
around 10:30am this morning.
Visibility started the day a bit limited, with a view of around
40 miles. However the view improved markedly during the mid
morning hours, and has reached 80 miles by early this afternoon.
The maximum temperature so far today is 45F degrees, which is
9 degrees above the normal high of 36F. The minimum temperature
since midnight is 37F degrees, which is 18 degrees above the
normal low of 19F.
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Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus, thin broken cirrus
Temperature: 37F; Dew Point: 32F; Relative Humidity: 80%
Wind: W @ 13 kts
Sea-level pressure: 1010.7 mb; 29.85 in. Hg: rising, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 43F
6-hr Min temp: 37F
24-hr Precip: 0.02 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 40 SCT E250 -BKN 40 107/37/32/2813/985/ HAZY/ 8/501
53013 70002 10043 20037
10 A.M.
Weather: Overcast cirrostratus, few stratocumulus W-NW-NNE,
few stratocumulus standing lenticularis NW-NNE, few altocumulus S-WNW
Temperature: 42F; Dew Point: 32F; Relative Humidity: 66%
Wind: WNW @ 13G20 kts
Sea-level pressure: 1011.1 mb; 29.86 in. Hg: rising, then falling
Visibility: 70 miles
3-hr Precip: 0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E220 OVC 70 111/42/32/3013G20/986/ FEW SC W-NW-NNE
FEW SCSL NW-NNE FEW AC S-WNW SUN DMLY VSBL/ 8/557 50004
1 P.M.
Weather: Broken altocumulus, overcast cirrostratus,
few stratocumulus all quadrants
Temperature: 43F; Dew Point: 30F; Relative Humidity: 58%
Wind: WNW @ 10G18 kts
Sea-level pressure: 1010.6 mb; 29.84 in. Hg: rising, then falling
Visibility: 80 miles
6-hr Max temp: 45F
6-hr Min temp: 37F
6-hr Precip: 0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E150 BKN 200 OVC 80 106/43/30/3010G18/984/ FEW SC ALQDS/
8/557 58005 10045 20037
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SUMMARY FOR SATURDAY, FEBRUARY 10, 2024
TEMPERATURE (DEGREES F)
MAX…….58 NORMAL…..36
MIN…….35 NORMAL…..19
MEAN……47 NORMAL…..27
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+20
TOTAL DEPARTURE FOR THE MONTH…………………..+83 [+8.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………18 DEPARTURE…….-20
TOTAL HEATING UNITS FOR THE MONTH…………..301 DEPARTURE…….-83
TOTAL HEATING UNITS FOR THE SEASON…………3267 DEPARTURE……-520
TOTAL HEATING UNITS LAST SEASON TO DATE…….3187 DEPARTURE…….+80
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)……….E26 NW @ 08:11 P.M.
VECTOR #1 (1-Sec)……….26 NW @ 08:11 P.M.
VECTOR #2 (1-Sec)……….27 NW @ 08:11 P.M.
DAVIS #1……………….25 NW @ 08:11 P.M.
DAVIS #2 ………………24 NNW @ 08:11 P.M.
RMY #1 (Instantaneous)…..30 NW @ 08:11 P.M.
RMY #2 (Instantaneous)…..28 NW @ 08:10 P.M.
MERLIN…………………25 NNW
RICHARDS (C5C) (Inst)……28 @ 08:11 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 NW @ 08:19 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..17 @ 08:20 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18 @ 08:17 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 NW @ 08:17 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 NNW @ 08:12 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 NNW @ 08:20 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..17 NW @ 08:17 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 @ 08:20 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……10.9 SSW [261 total miles]
VECTOR #1…………….11.2
VECTOR #2…………….11.4
DAVIS #1……………..10.8 SW
DAVIS #2……………..11.2 SW
RMY #1……………….11.2 SW
RMY #2……………….11.4 SW
RICHARDS (C5C)………..10.9
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.02 DEPARTURE…..-0.11
TOTAL PRECIPITATION FOR THE MONTH…………..0.05 DEPARTURE…..-1.29
TOTAL PRECIPITATION FOR THE YEAR (2024)……..9.29 DEPARTURE…..+3.45
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-6.8
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……20.9 DEPARTURE…..-19.6
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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 58/35/47/+20/0.02/0.0/…/.. 26 NW VEC1 26 NW RMY 30
2/11 The low since midnight is 37F, the daily normal low is 19F
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FEBRUARY DAILY RECORDS TO DATE
NONE…
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR FEBRUARY 12
HIGH 59F IN 2022
LOW -14F IN 1914
PRECIP 4.85 INCHES IN 1886 [RECORD FOR MONTH]
SNOWFALL 15.0 INCHES IN 2006
PEAK GUST 70 MPH E IN 1985
TODAY’S REPORT PREPARED BY: Matt Douglas
