Monday, October 14, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, OCTOBER 14, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0556E
SUNSET: 1703E
STUCK IN THE CLOUDS WITH LIGHT DRIZZLE AND FOG….
What a gloomy fall day it has been! Definitely not the kind of weather
we’d hope for on a Monday holiday, but it is a good one to sit inside
and enjoy a nice book. Since I arrived at the observatory this morning,
we have remained in the clouds. Light drizzle and fog has been the theme,
though a few very light rain showers have passed by. Accumulation since
7am has been minimal, with only an additional 0.01″ in the gauge. This
brings the storm total to 0.25″.
The temperature has changed little today. Our high temperature actually
occurred just after 9am this morning, when we briefly reached 51F. Since
then, a shift in the winds has caused the temperature to fall, and we are
currently holding in the upper 40s.
The wind has been rather light, even going calm for the 1pm observation.
Direction-wise, the flow was at first out of the north-northeast, and is
now from the northwest. Our average speed so far is 9mph, with a peak gust
of 28mph taking place a bit after 4:30am.
Visibility has remained extremely poor today, with views at best reaching
a measly 1/8 mile due to the dense fog.
The maximum temperature so far today is 51F, which is 11 degrees below
the normal high of 62F. The minimum temperature since midnight is 47F,
which is 2 degrees above the normal low of 45F.
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Today’s Observations:
7 A.M.
Weather: Light drizzle and fog, sky obscured, vertical visibility 200ft
Temperature: 50F; Dew Point: 50F; Relative Humidity: 100%
Wind: NNE @ 8 kts
Sea-level pressure: 1003.7 mb; 29.64 in. Hg: rising, then falling
Visibility: 1/8 mile, fog
6-hr Max temp: 50F
6-hr Min temp: 48F
24-hr Precip: 0.24 inches
BHO SA 1155 X W2 1/8L-F 037/50/50/0308/964/ 8//// 58010 70024 10050 20048
10 A.M.
Weather: Light drizzle and fog, sky obscured, vertical visibility 200ft
Temperature: 49F; Dew Point: 49F; Relative Humidity: 100%
Wind: NW @ 5 kts, wind light
Sea-level pressure: 1003.2 mb; 29.62 in. Hg: falling, then steady
Visibility: 1/16 mile
3-hr Precip: Trace
BHO SA 1455 X W2 1/16L-F 032/49/49/3205/962/ WND LGT/ 8//// 56005 6000/
1 P.M.
Weather: Fog, sky obscured, vertical visibility 200ft
Temperature: 49F; Dew Point: 49F; Relative Humidity: 100%
Wind: Wind calm
Sea-level pressure: 1001.5 mb; 29.57 in. Hg: falling unsteadily
Visibility: 1/8 mile
6-hr Max temp: 51F
6-hr Min temp: 47F
6-hr Precip: 0.01 inches
BHO SA 1755 X W2 1/8F 015/49/49/0000/957/ WND CALM/ 8//// 57017 6001/
10051 20047
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SUMMARY FOR SUNDAY, OCTOBER 13, 2024
TEMPERATURE (DEGREES F)
MAX…….50 NORMAL…..62
MIN…….44 NORMAL…..45
MEAN……47 NORMAL…..54
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..-7
TOTAL DEPARTURE FOR THE MONTH…………………….+16 [+1.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………18 DEPARTURE……..+6
TOTAL HEATING UNITS FOR THE MONTH…………..103 DEPARTURE…….-22
TOTAL HEATING UNITS FOR THE SEASON………….173 DEPARTURE…….-69
TOTAL HEATING UNITS LAST SEASON TO DATE……..166 DEPARTURE……..+7
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….0 DEPARTURE……..-5
TOTAL COOLING UNITS FOR THE SEASON………….757 DEPARTURE…….+81
TOTAL COOLING UNITS LAST SEASON TO DATE……..704 DEPARTURE…….+53
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated
F420C (Official)……….E32 ENE @ 07:53 P.M.
VECTOR #1 (1-Sec)……….32 ENE @ 07:53 P.M.
VECTOR #2 (1-Sec)……….30 NE @ 07:57 P.M.
DAVIS #1……………….29 ENE @ 07:53 P.M.
DAVIS #2 ………………28 ENE @ 08:12 P.M.
RMY #1 (Instantaneous)…..30 ENE @ 07:53 P.M.
RMY #2 (Instantaneous)…..31 NE @ 08:12 P.M.
MERLIN…………………28 NE
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………22 NE @ 08:00 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..20 @ 07:49 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21 @ 05:52 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………21 E @ 05:52 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………21 E @ 05:52 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..20 E @ 05:52 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 ENE @ 05:52 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..9.0 NE [216 total miles]
VECTOR #1………………9.1
VECTOR #2………………9.7
DAVIS #1……………….9.4 NE
DAVIS #2……………….9.6 ENE
RMY #1…………………9.1 NNE
RMY #2…………………9.5 NNE
RICHARDS (C5C)………….OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.24 DEPARTURE…..+0.07
TOTAL PRECIPITATION FOR THE MONTH…………..0.51 DEPARTURE…..-1.52
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.55 DEPARTURE…..+2.85
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PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
10/1 66/55/61/+3/T/134/19 28 ENE VEC1 28 ENE RMY 29
10/2 66/52/59/+1/T/252/36 21 ENE VEC1 20 ENE RMY 20
10/3 72/52/62/+5/0.00/592/85 23 S VEC1 23 S RMY 23
10/4 74/54/64/+7/0.00/438/63 23 SW VEC1 22 SW RMY 22
10/5 72/52/62/+5/T/457/66 24 NNW VEC1 23 NNW RMY 24
10/6 65/47/56/0/0.00/655/95 20 SE VEC1 19 SE RMY 18
10/7 60/51/56/0/0.27/021/03 29 SSE VEC1 29 SSE RMY 31
10/8 64/45/55/0/0.00/649/95 21 NW VEC1 21 NW RMY 21
10/9 64/46/55/0/T/632/93 24 W VEC1 23 WNW RMY 23
10/10 60/42/51/-4/0.00/…/.. 36 NW VEC1 36 NW RMY 38
10/11 67/40/54/0/0.00/…/.. 28 WSW VEC1 27 WSW RMY 27
10/12 71/48/60/+6/0.00/…/.. 46 NW VEC1 43 NW RMY 45
10/13 50/44/47/-7/…./…/.. 32 ENE VEC1 32 ENE RMY 30
10/14 The low since midnight is 47F, the daily normal low is 45F.
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OCTOBER 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 OCTOBER 14
HIGH 79F IN 2000
LOW 28F IN 1958
PRECIP 2.69 INCHES IN 1990
SNOWFALL 2.0 INCHES IN 1913
PEAK GUST 63e W IN 1976
RECORDS FOR OCTOBER 15
HIGH 83F IN 1897
LOW 29F IN 1887,1937
PRECIP 4.58 INCHES IN 2005
SNOWFALL TRACE IN 1961,1972
PEAK GUST 69 MPH W IN 2003
TODAY’S REPORT PREPARED BY: Joshua Polen
