Monday, March 6, 2023
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
MONDAY, MARCH 6, 2023
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0612E
SUNSET: 1740E
BRILLIANT SUNSHINE, SEASONABLY MILD, BUT WINDY TODAY ON THE HILL…
There was not a clouds in the sky this morning, however some cirrus
is now moving in from two different directions this afternoon. A
weak system to our west is pushing it’s envelope of cirrus clouds
in from the west. Meanwhile an ocean storm near Nova Scotia is
backing westward and it’s envelope of cirrus can be seen to the
distant northeast moving southwestward. Either way, an abundance
of sunshine continues.
Temperatures are in the mid 40s, which is only a few degrees above
normal for this time of year.
The wind has been quite gusty mainly out of a northwest direction.
The average speed for the day so far is around 15mph. Frequent
gusts over 30mph have been occurring with a peak so far of 39mph.
Visibility has been perfect with views of 80-90 miles today.
We can see the snow covered top of Mt. Monadnock in SW New
Hampshire pretty very clearly!
The high so far today is 46F, which is 5 degrees above the normal
maximum of 41F. The low since midnight is 31F, which is 7 degrees
above the normal low of 24F.
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Today’s Observations:
7 A.M.
Weather: Clear
Temperature: 32F; Dew Point: 25F; Relative Humidity: 74%
Wind: WNW @ 12 kts
Sea-level pressure: 1017.3 mb; 30.04 in. Hg: falling, then rising
Visibility: 70 miles
6-hr Max temp: 33F
6-hr Min temp: 31F
24-hr Precip: 0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 3 ins.
BHO SA 1155 CLR 70 173/32/25/2912/004/ 8/000 4/003 53003
10033 20031
10 A.M.
Weather: Clear
Temperature: 41F; Dew Point: 21F; Relative Humidity: 44%
Wind: NW @ 14G22 kts, peak wind WNW 32mph at 9:17 A.M.
Sea-level pressure: 1015.2 mb; 29.98 in. Hg: falling, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 CLR 80 152/41/21/3214G22/998/ PK WND 3028/17/
8/000 56021
1 P.M.
Weather: Clear, few cirrus all quadrants
Temperature: 45F; Dew Point: 16F; Relative Humidity: 31%
Wind: WNW @ 16G28 kts, peak wind NW 37mph at 11:57 A.M.
Sea-level pressure: 1012.7 mb; 29.91 in. Hg: falling, then more rapidly
Visibility: 90 miles
6-hr Max temp: 46F
6-hr Min temp: 32F
6-hr Precip: 0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 2 ins.
BHO SA 1755 CLR 90 127/45/16/3016G28/991/ FEW CI ALQDS
PK WND 3232/57/ 8/001 4/002 58025 10046 20032
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SUMMARY FOR SUNDAY, MARCH 5, 2023
TEMPERATURE (DEGREES F)
MAX…….41 NORMAL…..41
MIN…….25 NORMAL…..24
MEAN……33 NORMAL…..32
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……….+1
TOTAL DEPARTURE FOR THE MONTH…………………+14 [+2.6 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2022 THRU JUN 2023)
TOTAL HEATING UNITS FOR YESTERDAY……………32 DEPARTURE……..-1
TOTAL HEATING UNITS FOR THE MONTH…………..152 DEPARTURE…….-14
TOTAL HEATING UNITS FOR THE SEASON…………3872 DEPARTURE……-726
TOTAL HEATING UNITS LAST SEASON TO DATE…….4266 DEPARTURE……-394
PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
420C, Contacting, Merlin and Richards are all Main Tower.
420C (Official)…………35 NW @ 4:06 P.M.
VECTOR #1 (1-Sec)……….36 NW @ 4:06 P.M.
VECTOR #2 (1-Sec)……….36 NW @ 4:12 P.M.
DAVIS #1……………….34 WNW @ 4:05 P.M.
DAVIS #2 ………………33 NW @ 4:13 P.M.
RMY #1 (Instantaneous)…..37 NW @ 4:06 P.M.
RMY #2 (Instantaneous)…..37 NW @ 4:12 P.M.
MERLIN…………………35 NW
RICHARDS (C5C) (Inst)……36 @ 4:06 P.M.
FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………24 NW @ 4:07 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..23 @ 4:07 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..24 @ 4:07 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………24 WNW @ 4:07 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………23 NW @ 4:07 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..23 NW @ 4:07 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 NW @ 4:07 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE………23 @ 4:07 P.M.
AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……11.0 NW [265 total miles]
VECTOR #1…………….10.8
VECTOR #2…………….12.0
DAVIS #1……………..11.2 WNW
DAVIS #2……………..11.6 NW
RMY #1……………….10.5 WNW
RMY #2……………….11.7 NW
RICHARDS (C5C)………..11.2
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M……..0.00 DEPARTURE…..-0.17
TOTAL PRECIPITATION FOR THE MONTH…………..1.14 DEPARTURE…..+0.28
TOTAL PRECIPITATION FOR THE YEAR……………9.79 DEPARTURE…..+0.43
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………..3.4 DEPARTURE……+0.1
TOTAL SNOWFALL FOR THE SEASON (2022-2023)……27.7 DEPARTURE…..-27.5
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PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
VEC1: Vector #1 1-second gust
RMY: R.M. Young wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
3/1 43/27/35/+4/0.00/0.0/…/.. 20 NW VEC1 21 SE RMY 21
3/2 40/34/37/+5/0.31/0.0/…/.. 35 NW VEC1 36 NW RMY 39
3/3 44/29/37/+5/0.01/0.1/…/.. 33 NW VEC1 34 NW RMY 36
3/4 33/28/31/-1/0.82/3.3/…/.. 48 E VEC1 49 NE RMY 52
3/5 41/25/33/+1/0.00/0.0/…/.. 35 NW VEC1 36 NW RMY 37
3/6 The low since midnight is 31, the daily normal low is 24F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR MARCH 7
HIGH 66 IN 1946
LOW -1 IN 1890
PRECIP 2.05 INS. IN 1967
SNOWFALL 11.5 INS. IN 2013
PEAK GUST 66 MPH NE IN 1962
TODAY’S REPORT PREPARED BY: Matt Douglas
