Tuesday, February 14, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, FEBRUARY 14, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0642E
SUNSET: 1715E
MORE CLOUDS THAN SUN THIS MORNING, THEN INCREASING SUNSHINE….
More clouds than sun was the theme this morning, but clouds
have diminished in coverage as we progress through the early
afternoon hours. It has been brisk all day, so despite
temperatures rising into the upper 40s, there is still a bit
of a chill in the air. This chill is becoming even more
noticeable as the dew point slips into the mid 20s.
As mentioned, the wind has been busy, averaging around 13mph
for the day so far. We’ve seen gusts as high as 30-35mph
earlier this morning. The gusts have lessened as the day
progresses, but we’re still seeing occasional gusts of
20-25mph.
Visibility was limited a bit this morning to around 40 miles,
but has improved markedly early this afternoon, to a perfect
90 miles as the air continues to dry out.
The high so far today is 49F, which is 12 degrees above the
normal maximum of 37F. The low since midnight is 34F, which
is 15 degrees above the normal low of 19F.
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Today’s Observations:
7 A.M.
Weather: Broken stratocumulus
Temperature: 35F; Dew Point: 30F; Relative Humidity: 81%
Wind: WNW @ 10G16 kts
Sea-level pressure: 1010.1 mb; 29.83 in. Hg: rising, then more rapidly
Visibility: 40 miles, hazy
6-hr Max temp: 35F
6-hr Min temp: 34F
24-hr Precip: Trace
24-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1155 E45 BKN 40 101/35/30/3010G16/983/ HAZY/ 8/500 53047
6000/ 70000 10035 20034
10 A.M.
Weather: Broken stratocumulus
Temperature: 43F; Dew Point: 29F; Relative Humidity: 56%
Wind: NNW @ 10G16 kts
Sea-level pressure: 1013.9 mb; 29.94 in. Hg: rising, then more rapidly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E50 BKN 80 139/43/29/3310G16/994/ 8/500 53038
1 P.M.
Weather: Scattered stratocumulus
Temperature: 48F; Dew Point: 25F; Relative Humidity: 40%
Wind: NNW @ 10G17 kts
Sea-level pressure: 1015.3 mb; 29.98 in. Hg: rising, then more slowly
Visibility: 90 miles
6-hr Max temp: 49F
6-hr Min temp: 35F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 55 SCT 90 153/48/25/3410G17/998/ 8/500 51014 10049 20035
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SUMMARY FOR MONDAY, FEBRUARY 13, 2023
TEMPERATURE (DEGREES F)
MAX…….42 NORMAL…..37
MIN…….33 NORMAL…..19
MEAN……38 NORMAL…..28
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+10
TOTAL DEPARTURE FOR THE MONTH………………..+50 [+3.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………27 DEPARTURE…….-10
TOTAL HEATING UNITS FOR THE MONTH…………..446 DEPARTURE…….-50
TOTAL HEATING UNITS FOR THE SEASON…………3269 DEPARTURE……-630
TOTAL HEATING UNITS LAST SEASON TO DATE…….3558 DEPARTURE……-289
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
420C, Contacting, Merlin and Richards are all Main Tower.
420C (Official)…………28 NE @ 7:27 A.M.
VECTOR #1 (1-Sec)……….M
VECTOR #2 (1-Sec)……….33 @ 6:07 A.M.
DAVIS #1……………….30 ENE @ 6:07 A.M.
DAVIS #2 ………………31 NE @ 5:49 A.M.
RMY #1 (Instantaneous)…..M
RMY #2 (Instantaneous)…..36 NE @ 6:07 A.M.
MERLIN…………………29 NE
RICHARDS (C5C)………….M
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………20 NE @ 5:57 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..M
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21 @ 6:09 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 ENE @ 6:09 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 NE @ 6:09 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..M
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 NE @ 6:09 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………M
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……11.1 NE [266 total miles]
VECTOR #1…………….M
VECTOR #2…………….11.5
DAVIS #1……………..11.1 ENE
DAVIS #2……………..11.4 NE
RMY #1……………….M
RMY #2……………….11.3 NE
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.01 DEPARTURE…..-1.73
TOTAL PRECIPITATION FOR THE YEAR……………6.80 DEPARTURE…..+0.56
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..0.1 DEPARTURE……-8.6
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……15.0 DEPARTURE…..-27.4
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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
VEC1: Vector #1 1-second gust
RMY: R.M. Young 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 30/18/24/-2/T/T/552/92 17 NW VEC1 N/A RMY 20
2/2 38/19/29/+3/0.00/0.0/518/86 25 SW VEC1 N/A RMY 29
2/3 28/-11/9/-17/T/T/557/92 56 WNW VEC1 N/A RMY 64
2/4 14/-14/0/-26/0.00/0.0/473/78 45 NW VEC1 N/A RMY 51
2/5 49/14/32/+5/0.00/0.0/359/59 38 SW VEC1 N/A RMY 43
2/6 47/30/39/+12/0.00/0.0/025/04 28 NE VEC1 N/A RMY 29
2/7 31/22/27/0/0.01/0.1/461/75 29 SSW VEC1 N/A RMY 33
2/8 46/31/39/+12/0.00/0.0/413/67 30 NW VEC1 N/A RMY 34
2/9 49/33/41/+14/T/0.0/149/24 31 SSE VEC1 N/A RMY 32
2/10 60/31/46/+19/0.00/0.0/603/97 43 W VEC1 N/A RMY 51
2/11 43/31/37/+10/0.00/0.0/625/100 41 WNW VEC1 N/A RMY 46
2/12 48/28/38/+10/0.00/0.0/339/54 22 SW VEC1 N/A RMY 24
2/13 42/33/38/+10/0.00/0.0/069/11 28 NE VEC1 N/A RMY 36
2/14 The low since midnight is 34F, the daily normal low is 19F
DAILY RECORDS
02/03/2023: NEW RECORD MINIMUM TEMPERATURE OF -11F,
THIS BEATS THE OLD RECORD OF -7F SET IN 1955
02/04/2023: NEW RECORD MINIMUM TEMPERATURE OF -14F,
THIS BEATS THE OLD RECORD OF -4F SET IN 1886 AND 1908
02/10/2023: NEW RECORD MAXIMUM TEMPERATURE OF 60F,
THIS BEATS THE OLD RECORD OF 56 SET IN 1909
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR FEBRUARY 14
HIGH 56F IN 1949
LOW -14F IN 2016
PRECIP 2.09 INCHES IN 2007
SNOWFALL 11.0 INCHES IN 1914
PEAK GUST 83 MPH SSW IN 2000, S IN 2005
RECORDS FOR FEBRUARY 15
HIGH 60F IN 1954
LOW -18F IN 1943
PRECIP 2.07 INCHES IN 1940
SNOWFALL 14.4 INCHES IN 2015
PEAK GUST 94e MPH WNW IN 1946
TODAY’S REPORT PREPARED BY: Matt Douglas
