Tuesday, March 5, 2024
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, MARCH 5, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0612E
SUNSET: 1740E
CHILLY AND RAW ONSHORE FLOW WITH FOG AND DEVELOPING LIGHT RAIN…
We have been stuck in the clouds all day with visibility no more
than 1/16th of a mile. Light drizzle early this morning tapered off
for a time before light rain began moving into the area by the mid
to late morning hours.
Temperatures have spent much of the day in the 30s upto around
noon-time, when the mercury finally reached 40 degrees. Either way,
with the dampness and a light wind off the ocean, it’s a very raw
feel out there today.
Winds have been light for the most part with the onshore flow
averaging only around 6mph. The peak gust for the day so far is
around 16mph, occurring just before 5am this morning.
The maximum temperature so far today is 41F degrees, which is
equal to the normal high of 41F. The minimum temperature since
midnight is 36F degrees, which is 12 degrees above the normal low
of 24F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Sky obscured, vertical visibility 200ft, light drizzle
Temperature: 37F; Dew Point: 37F; Relative Humidity: 100%
Wind: ENE @ 5 kts, wind light
Sea-level pressure: 1028.0 mb; 30.36 in. Hg: falling, then rising
Visibility: 1/16 mile, fog
6-hr Max temp: 37F
6-hr Min temp: 36F
24-hr Precip: 0.04 inches
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 X W2 1/16L-F 280/37/37/0705/036/ PCPN VRY LGT WND LGT/
8//// 55004 6002/ 70004 10037 20036
10 A.M.
Weather: Sky obscured, vertical visibility 200ft
Temperature: 39F; Dew Point: 39F; Relative Humidity: 100%
Wind: E @ 5 kts, wind light
Sea-level pressure: 1026.9 mb; 30.32 in. Hg: steady, then falling
Visibility: 1/16 mile, fog
3-hr Precip: Trace
3-hr Snowfall: 0.0 inches
BHO SA 1455 X W2 1/16F 269/39/39/0805/032/ WND LGT/ 8//// 58011 6000/
1 P.M.
Weather: Sky obscured, vertical visibility 200ft, light rain
Temperature: 39F; Dew Point: 39F; Relative Humidity: 100%
Wind: ENE @ 8 kts
Sea-level pressure: 1024.0 mb; 30.24 in. Hg: falling, then more slowly
Visibility: 1/16 mile, fog
6-hr Max temp: 41F
6-hr Min temp: 37F
6-hr Precip: 0.02 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 X W2 1/16R-F 240/39/39/0708/024/ 8//// 56029 6002/
10041 20037
————————————————————–
SUMMARY FOR MONDAY, MARCH 4, 2024
TEMPERATURE (DEGREES F)
MAX…….49 NORMAL…..41
MIN…….36 NORMAL…..23
MEAN……43 NORMAL…..32
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………..+11
TOTAL DEPARTURE FOR THE MONTH…………………..+36 [+8.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2023 THRU JUN 2024)
TOTAL HEATING UNITS FOR YESTERDAY……………22 DEPARTURE…….-11
TOTAL HEATING UNITS FOR THE MONTH……………97 DEPARTURE…….-36
TOTAL HEATING UNITS FOR THE SEASON…………3985 DEPARTURE……-580
TOTAL HEATING UNITS LAST SEASON TO DATE…….3840 DEPARTURE……+145
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)……….E24 ENE @ 02:44 P.M.
VECTOR #1 (1-Sec)……….22 ENE @ 07:58 A.M.
VECTOR #2 (1-Sec)……….24 ENE @ 07:59 A.M.
DAVIS #1……………….24 E @ 02:42 P.M.
DAVIS #2 ………………22 E @ 07:59 A.M.
RMY #1 (Instantaneous)…..23 ENE @ 02:45 P.M.
RMY #2 (Instantaneous)…..24 ENE @ 07:59 A.M.
MERLIN…………………21 ENE
RICHARDS (C5C) (Inst)……23 @ 02:45 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………16 ENE @ 08:44 A.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..16 @ 02:34 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..17 @ 01:56 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………17 ENE @ 02:34 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………17 E @ 01:56 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..16 ENE @ 02:34 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..16 ENE @ 01:56 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………16 @ 02:34 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….9.6 ENE [230 total miles]
VECTOR #1……………..9.1
VECTOR #2…………….10.0
DAVIS #1……………..10.1 ENE
DAVIS #2……………..10.0 ENE
RMY #1………………..9.3 ENE
RMY #2………………..9.8 ENE
RICHARDS (C5C)…………9.9
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.04 DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..1.44 DEPARTURE…..+0.75
TOTAL PRECIPITATION FOR THE YEAR (2024)…….12.00 DEPARTURE…..+2.81
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-2.6
TOTAL SNOWFALL FOR THE SEASON (2023-2024)……26.1 DEPARTURE…..-28.4
————————————————————–
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/…/.. 30 NW VEC1 30 WNW RMY 33
3/2 50/32/41/+9/1.16/0.0/…/.. 44 SSE VEC1 46 SE RMY 42
3/3 55/42/49/+17/0.24/0.0/…/.. 32 SSE VEC1 33 SSE RMY 32
3/4 49/36/43/+11/0.01/0.0/…/.. 24 ENE VEC1 22 ENE RMY 23
3/5 The low since midnight is 36F, the daily normal low is 24F.
————————————————————–
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 5
HIGH 64 IN 1979
LOW -2 IN 1948
PRECIP 1.76 INS. IN 1920, 2001
SNOWFALL 12.0 INS. IN 1917
PEAK GUST 76e MPH WNW IN 1971
RECORDS FOR MARCH 6
HIGH 66 IN 1894
LOW 3 IN 1948, 2007
PRECIP 1.85 INS. IN 2001
SNOWFALL 15.5 INS. IN 2001
PEAK GUST 82 MPH S IN 1959
TODAY’S REPORT PREPARED BY: Matt Douglas
