Thursday, November 21, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
THURSDAY, NOVEMBER 21, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0643E
SUNSET: 1617E
FINALLY GETTING SOME MUCH NEEDED RAINFALL; RAW AND CHILLY WITH GUSTY
EASTERLY WINDS….
Light drizzle/rain began late last evening and continued intermittently
through the overnight and well into today. Steadier rain has finally
reached the Observatory after the 1pm observation. 0.08″ of water was
measured in the gauge at 7am, which an additional 0.06″ falling through
1pm. While this isn’t a lot so far, the duration will be super helpful
in allowing the moisture to soak into the ground. Now the steadier rain
has arrived, we’ll likely see the amounts rise at a more quick pace
into this evening. This is exceptionally great news for firefighters
as this should put an end to the various brush fires across the region,
at least for now.
Temperatures have been fairly isothermal today with a max/min range
of 1 degree to this point, 44F/43F respectively. With the drizzle/rain
and gusty east wind, it is very raw out there today. Definitely a
perfect day for a hot drink or a bowl of soup or chili!
Winds have been ramping up since this morning. The east to east-northeast
flow has averaged around 12mph for the day so far, but has been
averaging closer to 20mph over the past 3 hours or so. Gusts have been
frequently reaching 30mph with a peak gust so far of 38mph, which
occurred twice, at 11:14am and 12:17pm.
Visibility has of course been limited today due to the precipitation
and fog. At times it has reached as high as 3 miles, but has generally
been 1.5 miles or less for most of the day.
The maximum temperature for today is 44 degrees, which is 4 degrees
below the normal high of 48F. The minimum temperature since midnight
is 43F degrees, which is 11 degrees above the normal low of 32F.
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Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, intermittent light
drizzle
Temperature: 43F; Dew Point: 43F; Relative Humidity: 100%
Wind: E @ 14G26 kts, peak wind E 30mph at 6:53 A.M.
Sea-level pressure: 1004.5 mb; 29.66 in. Hg: falling, then more rapidly
Visibility: 1/2 mile, 1 mile SSE-SW, fog
6-hr Max temp: 44F
6-hr Min temp: 43F
24-hr Precip: 0.08 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 X W2 1/2L-F 045/43/43/0814G26/966/ L- INTMT VSBY 1 SSE-SW
PK WND 0826/53/ 8//// 58019 6008/ 70008 10044 20043
10 A.M.
Weather: Overcast stratus, light drizzle
Temperature: 44F; Dew Point: 44F; Relative Humidity: 100%
Wind: ENE @ 10G18 kts
Sea-level pressure: 1004.3 mb; 29.66 in. Hg: falling unsteadily
Visibility: 2 miles, fog
3-hr Precip: 0.02 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 E2 OVC 2L-F 043/44/44/0610G18/966/ PRES UNSTDY/ 8/6//
57002 6002/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle
Temperature: 44F; Dew Point: 44F; Relative Humidity: 100%
Wind: ENE @ 18G27 kts, peak wind ENE 38mph at 12:17 P.M.
Sea-level pressure: 1000.9 mb; 29.56 in. Hg: falling, then steady
Visibility: 3/4 mile, fog
6-hr Max temp: 44F
6-hr Min temp: 43F
6-hr Precip: 0.06 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 X W2 3/4L-F 009/44/44/0718G27/956/ PK WND 0733/17/ 8////
56034 6006/ 10044 20043
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SUMMARY FOR WEDNESDAY, NOVEMBER 20, 2024
TEMPERATURE (DEGREES F)
MAX…….52 NORMAL…..49
MIN…….36 NORMAL…..32
MEAN……44 NORMAL…..40
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+4
TOTAL DEPARTURE FOR THE MONTH……………………+106 [+5.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………21 DEPARTURE……..-4
TOTAL HEATING UNITS FOR THE MONTH…………..327 DEPARTURE……-101
TOTAL HEATING UNITS FOR THE SEASON………….700 DEPARTURE……-240
TOTAL HEATING UNITS LAST SEASON TO DATE……..796 DEPARTURE…….-96
COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0 DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….5 DEPARTURE……..+5
TOTAL COOLING UNITS FOR THE SEASON………….768 DEPARTURE…….+91
TOTAL COOLING UNITS LAST SEASON TO DATE……..715 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)………..21 E @ 06:14 P.M.
VECTOR #1 (1-Sec)……….21 E @ 06:14 P.M.
VECTOR #2 (1-Sec)……….21 ENE @ 06:16 P.M.
DAVIS #1……………….20 ENE @ 06:14 P.M.
DAVIS #2 ………………20 E @ 06:18 P.M.
RMY #1 (Instantaneous)…..21 E @ 06:14 P.M.
RMY #2 (Instantaneous)…..20 E @ 06:16 P.M.
MERLIN………………….M M
RICHARDS (C5C) (Inst)…..OTS
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………14 ENE @ 06:18 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..14 @ 12:21 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..16 @ 06:16 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………15 E @ 06:16 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………16 E @ 06:16 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..14 ENE @ 06:45 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..15 ENE @ 06:16 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL………8.2 E [197 total miles]
VECTOR #1……………….8.2
VECTOR #2……………….8.8
DAVIS #1………………..8.9 NE
DAVIS #2………………..8.7 NE
RMY #1………………….8.5 NE
RMY #2………………….8.8 NE
RICHARDS (C5C)…………..OTS
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.08 DEPARTURE…..-0.05
TOTAL PRECIPITATION FOR THE MONTH…………..0.16 DEPARTURE…..-2.67
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.96 DEPARTURE…..-3.03
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-0.8
TOTAL SNOWFALL FOR THE SEASON (2024-2025)…….0.0 DEPARTURE……-1.5
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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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
11/1 77/49/63/+16/0.00/0.0/347/56 36 WNW VEC1 36 WNW RMY 37
11/2 55/37/46/-1/0.00/0.0/228/37 21 N VEC1 23 N RMY 21
11/3 48/30/39/-7/0.00/0.0/595/97 20 NNW VEC1 21 NNW RMY 21
11/4 49/33/41/-5/0.00/0.0/061/10 20 SSE VEC1 21 SSE RMY 21
11/5 73/46/60/+15/0.00/0.0/505/83 35 SW VEC1 35 SW RMY 37
11/6 80/59/70/+25/0.00/0.0/558/92 39 WSW VEC1 39 WSW RMY 42
11/7 69/47/58/+13/0.00/0.0/519/86 37 WNW VEC1 35 WNW RMY 42
11/8 63/41/52/+7/0.00/0.0/572/95 42 WNW VEC1 42 WNW RMY 47
11/9 50/36/43/-1/0.00/0.0/599/100 40 NW VEC1 42 NW RMY 43
11/10 60/32/46/+2/T/0.0/388/65 29 WSW VEC1 29 SW RMY 31
11/11 66/50/58/+15/0.08/0.0/457/77 40 SW VEC1 42 SW RMY 43
11/12 54/33/44/+1/0.00/0.0/545/92 48 NNW VEC1 50 NNW RMY 56
11/13 43/28/36/-7/0.00/0.0/584/99 32 N VEC1 33 N RMY 31
11/14 42/27/35/-7/0.00/0.0/542/92 22 NE VEC1 22 NE RMY 22
11/15 58/27/43/+1/0.00/0.0/580/99 28 NW VEC1 28 NW RMY 30
11/16 60/38/49/+7/0.00/0.0/572/98 33 NNW VEC1 35 NNW RMY 35
11/17 62/40/51/+10/0.00/0.0/553/95 26 NW VEC1 26 NW RMY 26
11/18 61/43/52/+11/T/0.0/418/72 29 NW VEC1 28 NW RMY 31
11/19 56/39/48/+7/0.00/0.0/565/98 29 NW VEC1 29 NW RMY 30
11/20 52/36/44/+4/T/0.0/564/98 21 E VEC1 21 E RMY 21
11/21 The low since midnight is 43F, the daily normal low is 32F.
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NOVEMBER DAILY RECORDS TO DATE
11/1 RECORD HIGH TEMPERATURE OF 77F, OLD RECORD WAS 75F IN 2003.
11/6 RECORD HIGH TEMPERATURE OF 80F, OLD RECORD WAS 74F IN 2022.
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DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR NOVEMBER 21
HIGH 69 IN 1931
LOW 10 IN 1888
PRECIP 3.41 INCHES IN 1950
SNOWFALL 4.0 INS IN 1929
PEAK GUST 69 NW IN 1989
RECORDS FOR NOVEMBER 22
HIGH 70 IN 1931
LOW 9 IN 2018
PRECIP 1.78 INS IN 2005
SNOWFALL 9.0 INS IN 1971
PEAK GUST 70e SE IN 1945
TODAY’S REPORT PREPARED BY: Matt Douglas
