Monday, February 13, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, FEBRUARY 13, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0644E
SUNSET: 1714E
OVERCAST SKIES WITH A BRISK ONSHORE WIND, BUT STILL MILDER THAN NORMAL….
As an ocean storm passes off to the southeast of the region,
clouds and a gusty northeasterly flow off the ocean has been
the theme overnight and through all of the day today so far.
Despite this, temperatures remain on the mild side as there
is just no arctic air anywhere near the region. Not even in
southern Canada! While not as “warm” as yesterday, we’ve still
managed to reach the lower 40s here on the hill.
Also of note, not even a drop of rain has fallen here with
most of the moisture limited to southeastern areas of the
state. Liquid precipitation for the month has only amounted
to 0.01″. This is in stark contrast to the 6.79″ that fell
during the month of January. The month to date is 1.60″ below
normal in terms of precipitation.
As mentioned, the wind has been busy, averaging around 14mph
for the day so far. We’ve seen gusts as high as 25-30mph,
mainly out of the northeast.
Visibility was limited all morning to around 20 miles, but
has improved markedly early this afternoon to around 60
miles as drier air tries to work into the area.
The high so far today is 42F, which is 5 degrees above the
normal maximum of 37F. The low since midnight is 36F, which
is 17 degrees above the normal low of 19F.
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Today’s Observations:
7 A.M.
Weather: Broken stratocumulus, broken altocumulus/altostratus,
overcast cirrostratus, few breaks in overcast overhead-W-NW
Temperature: 38F; Dew Point: 34F; Relative Humidity: 85%
Wind: NE @ 13G24 kts
Sea-level pressure: 1004.6 mb; 29.67 in. Hg: falling steadily
Visibility: 20 miles, thin fog
6-hr Max temp: 38F
6-hr Min temp: 36F
24-hr Precip: 0.00
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 E15 BKN 150 BKN 220 OVC 20 046/38/34/0513G24/967/
FEW BINOVC OVHD-W-NW THN F ALQDS/ 8/557 57017 10038 20036
10 A.M.
Weather: Broken stratocumulus, overcast cirrostratus, few breaks
in overcast WNW-NW
Temperature: 40F; Dew Point: 33F; Relative Humidity: 88%
Wind: NE @ 10G18 kts
Sea-level pressure: 1003.3 mb; 29.63 in. Hg: falling, then more rapidly
Visibility: 20 miles, hazy
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E20 BKN 220 OVC 20 033/40/33/0410G18/063/
FEW BINOVC WNW-NW HAZY/ 8/507 58013
1 P.M.
Weather: Overcast stratocumulus
Temperature: 39F; Dew Point: 31F; Relative Humidity: 83%
Wind: NNE @ 13G22 kts
Sea-level pressure: 1002.2 mb; 29.59 in. Hg: falling, then more rapidly
Visibility: 60 miles
6-hr Max temp: 42F
6-hr Min temp: 38F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 E20 OVC 60 022/39/31/0313G22/959/ 8/5// 58011 10042 20038
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SUMMARY FOR SUNDAY, FEBRUARY 12, 2023
TEMPERATURE (DEGREES F)
MAX…….48 NORMAL…..36
MIN…….28 NORMAL…..19
MEAN……38 NORMAL…..28
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……..+10
TOTAL DEPARTURE FOR THE MONTH………………..+40 [+3.1 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…………..419 DEPARTURE…….-40
TOTAL HEATING UNITS FOR THE SEASON…………3242 DEPARTURE……-620
TOTAL HEATING UNITS LAST SEASON TO DATE…….3522 DEPARTURE……-280
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
420C, Contacting, Merlin and Richards are all Main Tower.
420C (Official)…………22 SW @ 3:17 A.M.
VECTOR #1 (1-Sec)……….M
VECTOR #2 (1-Sec)……….24 @ 2:58 A.M.
DAVIS #1……………….23 SW @ 3:17 A.M.
DAVIS #2 ………………23 SSW @ 3:17 A.M.
RMY #1 (Instantaneous)…..M
RMY #2 (Instantaneous)…..24 SW @ 2:58 A.M.
MERLIN…………………M
RICHARDS (C5C)………….M
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………18 SW @ 3:04 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..M
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..18 @ 3:05 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………16 SW @ 1:17 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………18 SSW @ 12:48 A.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..M
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..32 WNW @ 2:37 A.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………M
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……8.8 WSW [210 total miles]
VECTOR #1…………….M
VECTOR #2…………….9.4
DAVIS #1……………..8.6 SW
DAVIS #2……………..9.2 SSW
RMY #1……………….M
RMY #2……………….9.4 SW
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…..-1.60
TOTAL PRECIPITATION FOR THE YEAR……………6.80 DEPARTURE…..+0.69
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………..0.1 DEPARTURE……-8.0
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……15.0 DEPARTURE…..-26.8
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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/…/.. 30 NW VEC1 N/A RMY 34
2/9 49/33/41/+14/T/0.0/…/.. 31 SSE VEC1 N/A RMY 32
2/10 60/31/46/+19/0.00/0.0/…/.. 43 W VEC1 N/A RMY 51
2/11 43/31/37/+10/0.00/0.0/…/.. 41 WNW VEC1 N/A RMY 46
2/12 48/28/38/+10/0.00/0.0/…/.. 22 SW VEC1 N/A RMY 24
2/13 The low since midnight is 36F, 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 13
HIGH 64F IN 1951
LOW -10F IN 1967
PRECIP 2.80 INCHES IN 2008
SNOWFALL 9.0 INCHES IN 1899
PEAK GUST 60 MPH SE IN 1972
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
TODAY’S REPORT PREPARED BY: Matt Douglas
