Tuesday, November 3, 2020
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, NOVEMBER 3, 2020
ALL TIMES ARE IN EASTERN STANDARD TIME
ONCE AGAIN WINDY AND CHILLY, BUT MORE SUNSHINE….
Today is yet another chilly day with gusty winds. The biggest
difference is there is considerably more sun today after clouds
moved out this morning.
A weak disturbance moved through this morning with clouds
and a lot of virga, but no precipitation was observed here at
the hill. The low hanging clouds and virga with brighter skies
in the backdrop made for quite the picturesque view early this
morning!
Winds were gusty ahead of this disturbance blowing out of
southwest and then west-southwest. Then the wind diminished
for about an hour this morning before shifting to west-northwest
and increasing once again. Gusts have been frequently 30-35 mph
with a peak gust of 46 mph occurring at 9:57 A.M.
The air has dried out considerably as well following the
disturbance. The dew point was around 30 early this morning,
but has dropped into the mid teens early this afternoon.
Visibility has been excellent all day, holding at around 80 miles.
The high so far today is 43F, which is 11 degrees below the
daily normal maximum of 54F. The low since midnight is 31F,
which is 6 degrees below the daily normal minimum of 37F.
Today’s Observations:
7 A.M.
Weather: Scattered stratocumulus, overcast altostratus/nimbostratus,
few breaks in overcast all quadrants, virga all quadrants
Temperature: 35F; Dew Point: 30F; Relative Humidity: 81%
Wind: W at 16G21 kts, peak wind W 30 kts at 6:32 A.M.
Sea-level pressure: 29.74 ins. Hg: rising, then more rapidly
Visibility: 80 miles
6-hr Max temp: 37F
6-hr Min temp: 32F
24-hr Precip: Trace
24-hr Snow: Trace
Snow Depth: 0 ins.
BHO SA 1155 30 SCT E75 OVC 80 072/35/30/2616G21/974/
FEW BINOVC ALQDS VIRGA ALQDS PK WND 2730/32/ 8/52/
53034 70000 10037 20032
10 A.M.
Weather: Broken stratocumulus, broken cirrostratus, virga NW-NE-E
Temperature: 41F; Dew Point: 20F; Relative Humidity: 42%
Wind: WNW at 18G31 kts, peak wind WNW 34 kts at 9:31 A.M.
Sea-level pressure: 29.85 ins. Hg: rising, then more slowly
Visibility: 80 miles
3-hr Precip: 0.00 ins.
3-hr Snow: 0.0 ins.
BHO SA 1455 E50 BKN 220 BKN 80 107/41/20/3018G31/985/
VIRGA NW-NE-E PK WND 2934/31/ 8/508 51035
1 P.M.
Weather: Scattered stratocumulus, scattered cirrostratus,
thin broken cirrus
Temperature: 40F; Dew Point: 16F; Relative Humidity: 37%
Wind: WNW at 14G20 kts, peak wind WNW 28 kts at 12:16 P.M.
Sea-level pressure: 29.96 ins. Hg: rising, then more rapidly
Visibility: 80 miles
6-hr Max temp: 43F
6-hr Min temp: 35F
6-hr Precip: 0.00 ins.
6-hr Snow: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 60 SCT 220 SCT 250 -BKN 80 147/40/16/3014G20/996/
PK WND 3028/16/ 8/508 53040 10043 20035
SUMMARY FOR MONDAY, NOVEMBER 2, 2020
TEMPERATURE (DEGREES F)
MAX…….40 NORMAL…..55
MIN……..31 NORMAL…..37
MEAN…..36 NORMAL…..46
DEPARTURE FROM 30-YEAR NORMAL………………-10
TOTAL DEPARTURE FOR THE MONTH………………-13 [-6.7 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………….. 29 DEPARTURE…..+10
TOTAL HEATING UNITS FOR THE MONTH…………….. 51 DEPARTURE…..+13
TOTAL HEATING UNITS FOR THE SEASON…………..503 DEPARTURE….. -98
TOTAL HEATING UNITS LAST SEASON TO DATE……478 DEPARTURE…..+25
PEAK WIND GUST FOR YESTERDAY (MPH)
420C/Official…………………….61 WNW AT 11:22 A.M.
AEROVANE (south tower)…….62 WNW AT 11:22 A.M.
ASOS……………………………..60 WNW AT 11:23 A.M.
DAVIS #1………………………..59 WNW AT 11:22 A.M.
DAVIS #2 (south tower)……..56 WNW AT 11:22 A.M.
VECTOR………………………….71
RMY………………………………62
MERLIN…………………………..61
FASTEST MILE FOR YESTERDAY……………..41 WNW AT 11:22 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……….38 WNW AT 11:23 A.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE….41 WNW AT 11:23 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE….44 WNW AT 11:23 A.M.
AVERAGE WIND SPEED AND DIRECTION……20.5 WNW [491 total miles]
ASOS…………..18.6
DAVIS #1……..20.7 WNW [286 deg.]
DAVIS #2……..20.9 WNW [286 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…..Trace DEPARTURE….-0.16
ASOS…………0.00
TOTAL PRECIPITATION FOR THE MONTH…………0.69 DEPARTURE….+0.38
ASOS…………0.71
TOTAL PRECIPITATION FOR THE YEAR…………..41.86 DEPARTURE….-2.22
ASOS……….42.66
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HOURS ENDING 7 A.M……Trace DEPARTURE…. 0.0
TOTAL SNOWFALL FOR THE MONTH………………Trace DEPARTURE….-0.1
TOTAL SNOWFALL FOR THE SEASON……………. 6.5 DEPARTURE….+6.1
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
10/01 75/56/66/+9/0.00/591/84 28 SW AERO 28 SW RMY N/A
10/02 63/49/56/-1/0.02/203/29 20 NW AERO 21 NW RMY 20
10/03 65/45/55/-1/0.00/676/97 19 WNW AERO 19 WNW RMY 19
10/04 65/45/55/-1/0.00/659/95 17 ESE AERO 18 ESE RMY 18
10/05 62/52/57/+1/0.00/277/40 17 ENE AERO 17 ENE RMY N/A
10/06 69/51/60/+5/0.00/503/73 28 S AERO 28 S RMY 29
10/07 73/50/62/+7/0.14/316/46 76 W AERO 74 W RMY 70 TSTM
10/08 61/42/52/-2/0.00/676/99 41 W AERO 41 W RMY N/A
10/09 60/37/49/-5/0.00/646/95 25 SSW AERO 28 SSW RMY N/A
10/10 75/52/64/+10/0.00/549/81 40 SSW AERO 40 SSW RMY 38
10/11 64/47/56/+3/0.00/574/85 32 NNW AERO 35 NNW RMY N/A
10/12 52/48/50/-3/T/000/00 28 E AERO 27 E RMY N/A
10/13 57/49/53/0/1.74/000/00 32 E AERO 33 E RMY N/A
10/14 67/47/57/+5/0.00/606/91 23 WNW AERO 25 WNW RMY N/A
10/15 71/50/61/+9/0.00/511/77 43 S AERO 46 S RMY 42
10/16 68/48/58/+7/1.00/020/03 28 S AERO 30 S RMY N/A
10/17 56/39/48/-3/1.24/480/73 35 WNW AERO 40 WNW RMY 37
10/18 60/46/53/+2/0.00/622/95 20 ESE AERO 21 ESE RMY 20
10/19 61/46/54/+4/0.00/575/88 16 ESE AERO 16 SSE RMY N/A
10/20 66/49/58/+8/0.00/065/10 22 S AERO 22 S RMY 22
10/21 71/56/64/+14/0.06/000/00 26 SSW AERO 26 SSW RMY 26
10/22 70/54/62/+13/0.00/471/73 18 SSW AERO 17 SSW RMY N/A
10/23 68/52/60/+11/0.00/340/53 18 ESE AERO 18 ESE RMY 18
10/24 68/42/55/+6/0.00/217/34 32 NNW AERO 32 NNW RMY 32
10/25 50/40/45/-4/0.00/134/21 19 NNW AERO 19 NNW RMY N/A
10/26 52/43/48/0/0.02/000/00 20 E AERO 18 ESE RMY 20
10/27 52/43/48/0/T/…/.. 22 NNW AERO 22 NNW RMY N/A
10/28 49/42/46/-2/0.33/…/.. 18 W AERO 18 W RMY 18
10/29 46/41/44/-3/1.26/…/.. 39 NE AERO 38 NE RMY 38
10/30 41/26/34/-13/0.94/…/.. 37 NNE AERO 44 NNE RMY N/A
10/31 39/24/32/-15/0.00/…/.. 18 SSE AERO 20 SSE RMY 17
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/PEAK GUST/AERO/RMY GUST
AERO: Aerovane wind recording system gust
RMY: R.M. Young wind gust recording system
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M: Missing data
11/01 49/36/43/-3/0.69/0.0/…/.. 38 W AERO 40 W RMY 39
11/02 40/31/36/-10/T/T/…/.. 61 WNW AERO 62 WNW RMY 62
11/03 The low since midnight is 31F, the daily normal low is 37F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 3
HIGH 75 IN 1990
LOW 21 IN 1891
PRECIP 1.92 INCHES IN 1951
SNOWFALL 0.1 IN 1951
PEAK GUST 96e SSE IN 1951
RECORDS FOR NOVEMBER 4
HIGH 77 IN 1987
LOW 22 IN 1891
PRECIP 3.27 INCHES IN 1910
SNOWFALL 6.4 IN 1945
PEAK GUST 73 WNW IN 1965
TODAY’S REPORT PREPARED BY: Matt Douglas
