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Sunday, March 10, 2024

March 10, 2024

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA SUNDAY, MARCH 10, 2024 ALL TIMES ARE…

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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

SUNDAY, MARCH 10, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0604E
SUNSET:  1745E

HEAVY RAIN OVERNIGHT BRINGS OVER 1″ OF WATER, DRIER, BUT MILD
CONDITIONS BEING OBSERVED TODAY…

Just a note; Here at BHO we do not use DST, thus all times within
our discussions will continue to be in EST. We do this for continuity
purposes, as well as to keep our record keeping/reporting simplified.

A quick moving, but potent system moved through the region overnight
and early this morning bringing with it another bout of heavy rainfall
and gusty winds. Rainfall totalled 1.28″, and marks the 3rd 1+ inch
event within the first 10 days of the month. The monthly precipitation
total is now up to 4.33″, a solid 2.76″ above what we’d normally
expect by today’s date.

The rain and drizzle tapered off by 9am this morning, and the clouds
broke soon after. A mix of sun and clouds has been the theme since.

Temperatures have been on the mild side today with readings in the
mid-upper 40s.

The wind became gusty overnight, and has remained that way through
today so far. The average speed so far for the day has been around
18mph. Frequent gusts of 20-30mph have been occurring during the
daylight hours, however gusts over 40mph were observed during the
overnight hours into early this morning. The peak gust so far for
today is 43mph, occurring at around 5am this morning.

Visibility has improved markedly from this morning. We started the
day in dense fog and visibility under 1/4 mile. The view has reached
up to 80 miles by early this afternoon.

The maximum temperature so far today is 49F degrees, which is
7 degrees above the normal high of 42F. The minimum temperature
since midnight is 38F degrees, which is 13 degrees above the normal
low of 25F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle
Temperature: 48F; Dew Point: 48F; Relative Humidity: 100%
Wind: S @ 16G28 kts, peak wind SSE 41mph at 6:25 A.M.
Sea-level pressure: 990.3 mb; 29.24 in. Hg: falling, then more slowly
Visibility: 1/4 mile, fog
6-hr Max temp: 48F
6-hr Min temp: 39F
24-hr Precip:  1.28 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 X W2 1/4L-F 903/48/48/1816G28/924/ PK WND 1636/25/ 8////
56053 6087/ 70128 10048 20039

10 A.M.
Weather: Broken stratocumulus, broken cirrus
Temperature: 46F; Dew Point: 41F; Relative Humidity: 83%
Wind: W @ 18G25 kts
Sea-level pressure: 990.8 mb; 29.26 in. Hg: rising, then falling
Visibility: 60 miles
3-hr Precip:  Trace
3-hr Snowfall: 0.0 inches
BHO SA 1455 E12 BKN 250 BKN 60 908/46/41/2818G25/926/ 8/501 50005 6000/

1 P.M.
Weather: Overcast stratocumulus, few breaks in overcast all quadrants,
higher clouds visible distant NE-ESE, virga distant WNW-NNW
Temperature: 47F; Dew Point: 36F; Relative Humidity: 64%
Wind: WNW @ 15G25 kts, peak wind WNW 35mph at 12:18 P.M.
Sea-level pressure: 990.3 mb; 29.24 in. Hg: rising, then falling
Visibility: 80 miles
6-hr Max temp: 49F
6-hr Min temp: 45F
6-hr Precip:  Trace
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 E32 OVC 80 903/47/36/2915G25/924/ FEW BINOVC ALQDS HIER
CLDS VSBL DSNT NE-ESE VIRGA DSNT WNW-NNW PK WND 2930/18/ 8/5// 58005
6000/ 10049 20045

————————————————————–

SUMMARY FOR SATURDAY, MARCH 9, 2024

TEMPERATURE (DEGREES F)
MAX…….40   NORMAL…..42
MIN…….32   NORMAL…..25
MEAN……36   NORMAL…..33

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………+3
TOTAL DEPARTURE FOR THE MONTH…………………..+71 [+7.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………29  DEPARTURE……..-3
TOTAL HEATING UNITS FOR THE MONTH…………..223  DEPARTURE…….-71
TOTAL HEATING UNITS FOR THE SEASON…………4111  DEPARTURE……-616
TOTAL HEATING UNITS LAST SEASON TO DATE…….3986  DEPARTURE……+125

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)……….E32 E    @  11:55 P.M.
VECTOR #1 (1-Sec)……….32 E    @  11:55 P.M.
VECTOR #2 (1-Sec)……….32 ESE  @  08:47 P.M.
DAVIS #1……………….32 E    @  11:55 P.M.
DAVIS #2 ………………30 ESE  @  08:52 P.M.
RMY #1 (Instantaneous)…..31 E    @  11:55 P.M.
RMY #2 (Instantaneous)…..32 ESE  @  08:47 P.M.
MERLIN………………….M
RICHARDS (C5C) (Inst)……31      @  11:55 P.M.

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………25 E    @  11:25 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..22      @  11:52 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..22      @  11:52 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 E    @  11:52 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 E    @  11:52 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..22 E    @  11:52 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..22 E    @  11:52 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………22      @  11:52 P.M.

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……11.0 SSE [264 total miles] VECTOR #1…………….10.8
VECTOR #2…………….11.4
DAVIS #1……………..11.0 SE
DAVIS #2……………..11.1 SE
RMY #1……………….10.6 SE
RMY #2……………….11.3 SE
RICHARDS (C5C)………..11.4

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..1.28 DEPARTURE…..+1.09
TOTAL PRECIPITATION FOR THE MONTH…………..4.33 DEPARTURE…..+2.76
TOTAL PRECIPITATION FOR THE YEAR (2024)…….14.89 DEPARTURE…..+4.82

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-5.5
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.1 DEPARTURE…..-31.3

————————————————————–

PRELIMINARY CLIMATE SUMMARY FOR MARCH 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
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

3/1   41/18/30/-1/0.00/0.0/649/96         30 NW  VEC1 30 WNW RMY 33
3/2   50/32/41/+9/1.16/0.0/000/00         44 SSE VEC1 46 SE  RMY 42
3/3   55/42/49/+17/0.24/0.0/130/19        32 SSE VEC1 33 SSE RMY 32
3/4   49/36/43/+11/0.01/0.0/116/17        24 ENE VEC1 22 ENE RMY 23
3/5   42/36/39/+7/0.14/0.0/000/00         21 E   VEC1 21 E   RMY 21
3/6   51/39/45/+12/0.44/0.0/000/00        28 NE  VEC1 28 NE  RMY 29
3/7   42/37/40/+7/1.06/0.0/000/00         44 NNE VEC1 44 NNE RMY 42
3/8   45/32/39/+6/0.00/0.0/…/..         35 NNE VEC1 36 NNE RMY 38
3/9   40/32/36/+3/0.21/0.0/…/..         32 E   VEC1 32 E   RMY 31

3/10 The low since midnight is 38F, the daily normal low is 25F.

————————————————————–

MARCH DAILY RECORDS TO DATE

NONE…

————————————————————–

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)

RECORDS FOR MARCH 10
HIGH 69 IN 1977
LOW 2 IN 1984
PRECIP 2.00 INS. IN 1994
SNOWFALL 5.5 INS. IN 1918
PEAK GUST 80 MPH NW IN 1974

RECORDS FOR MARCH 11
HIGH 71 IN 2021
LOW 4 IN 1939, 1960
PRECIP 2.11 INS. IN 1901
SNOWFALL 6.3 INS. IN 1934
PEAK GUST 66e MPH W IN 1980

TODAY’S REPORT PREPARED BY: Matt Douglas

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
§ 01

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