Tuesday, February 13, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, FEBRUARY 13, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0644E
SUNSET: 1713E
A QUICK MOVING, BUT INTENSE STORM BRINGS SNOW AND WIND TO BLUE HILL….
Snow began falling at 5:48am this morning with a temperature
of 35F degrees. Light, very wet snow continued through the
mid morning hours before a heavy band moved into the area.
Only a trace of snow was measured by 7am, with 0.8″ being
measured by 10am. The heavy snow band really got going just
after the 10am observation which also coincided with the
temperature slipping just below freezing. This allowed for
additional snow accumulation to quickly take place as the
snow became less dense (wet). An additional 3.2″ fell by the
1pm observation. Then finally another 0.3″ fell after that
time before the snow finally came to an end just before 2:30pm.
Total snowfall for the event is 4.3″ with 0.63″ total liquid.
The temperature has now dropped into the upper 20s with cloudy
skies remaining through the mid afternoon hours.
The wind started the day out of the north-northeast and north-
east, then veered to the east and east-northeast for a few hours
this morning. It has since backed to the north early to mid
afternoon. Winds are gusty with frequent gusts of 20-30mph. The
peak gust so far is around 40mph occurring just after 2pm.
The maximum temperature today is 35F degrees, which is 2 degrees
below the normal high of 37F. The minimum temperature since
midnight is 28F degrees, which is 9 degrees above the normal low
of 19F.
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Today’s Observations:
7 A.M.
Weather: Broken stratocumulus, overcast nimbostratus, light snow
Temperature: 34F; Dew Point: 32F; Relative Humidity: 94%
Wind: E @ 13G22 kts
Sea-level pressure: 1002.9 mb; 29.62 in. Hg: rising, then falling
Visibility: 12 miles, 8 miles SSW-NW, thin fog
6-hr Max temp: 35F
6-hr Min temp: 32F
24-hr Precip: 0.01 inches
24-hr Snowfall: Trace
Snow Depth: 0 inches
BHO SA 1155 E9 BKN 17 OVC 12S- 029/34/32/0813G22/962/ THN F ALQDS
VSBY 8 SSW-NW TOTAL NEW SNW PST 24 HRS TRACE/ 8/52/ 58019 6001/
70001 10035 20032
10 A.M.
Weather: Sky obscured, vertical visibility 200ft, light snow
Temperature: 32F; Dew Point: 32F; Relative Humidity: 100%
Wind: ENE @ 18G25 kts
Sea-level pressure: 999.2 mb; 29.51 in. Hg: falling, then more slowly
Visibility: 1/4 mile, fog
3-hr Precip: 0.22 inches
3-hr Snowfall: 0.8 inches
BHO SA 1455 X W2 1/4S-F 992/32/32/0718G25/951/ TOTAL NEW SNW PST 3 HRS
0.8 INS/ 8//// 56037 6022/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft, moderate snow
Temperature: 31F; Dew Point: 31F; Relative Humidity: 100%
Wind: NE @ 17G32 kts, peak wind NE 37mph at 12:52 P.M.
Sea-level pressure: 996.4 mb; 29.42 in. Hg: falling, then more rapidly
Visibility: 1/8 mile, fog
6-hr Max temp: 34F
6-hr Min temp: 31F
6-hr Precip: 0.62 inches
6-hr Snowfall: 4.0 inches
Snow Depth: 4 inches
BHO SA 1755 X W2 1/8SF 964/31/31/0417G32/942/ PK WND 0432/52/
TOTAL NEW SNW PST 6 HRS 4.0 INS/ 8//// 4/004 58028 6062/ 10034
20031
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SUMMARY FOR MONDAY, FEBRUARY 12, 2024
TEMPERATURE (DEGREES F)
MAX…….47 NORMAL…..36
MIN…….29 NORMAL…..19
MEAN……38 NORMAL…..28
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+10
TOTAL DEPARTURE FOR THE MONTH………………….+106 [+8.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………27 DEPARTURE…….-10
TOTAL HEATING UNITS FOR THE MONTH…………..353 DEPARTURE……-106
TOTAL HEATING UNITS FOR THE SEASON…………3319 DEPARTURE……-543
TOTAL HEATING UNITS LAST SEASON TO DATE…….3242 DEPARTURE…….+77
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)……….E21 N @ 09:37 P.M.
VECTOR #1 (1-Sec)……….20 N @ 09:21 P.M.
VECTOR #2 (1-Sec)……….21 N @ 09:42 P.M.
DAVIS #1……………….20 N @ 09:29 P.M.
DAVIS #2 ………………18 NNE @ 09:43 P.M.
RMY #1 (Instantaneous)…..20 N @ 09:36 P.M.
RMY #2 (Instantaneous)…..22 N @ 09:42 P.M.
MERLIN…………………M
RICHARDS (C5C) (Inst)……19 @ 09:36 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………15 N @ 09:44 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14 @ 09:56 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..14 @ 09:55 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………14 N @ 09:56 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………13 N @ 09:55 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..13 N @ 09:55 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..14 NNW @ 09:55 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………14 @ 09:55 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….7.1 NW [170 total miles]
VECTOR #1……………..7.5
VECTOR #2……………..7.9
DAVIS #1………………7.5 NW
DAVIS #2………………7.4 NNW
RMY #1………………..7.4 NW
RMY #2………………..7.7 WNW
RICHARDS (C5C)…………8.0
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.01 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.06 DEPARTURE…..-1.55
TOTAL PRECIPITATION FOR THE YEAR (2024)……..9.30 DEPARTURE…..+3.19
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-8.1
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……20.9 DEPARTURE…..-20.9
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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 45/34/40/+13/0.00/0.0/…/.. 30 NW VEC1 30 NW RMY 31
2/12 47/29/38/+10/0.00/0.0/…/.. 21 N VEC1 20 N RMY 20
2/13 The low since midnight is 28F, 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 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
