Thursday, February 17, 2022

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

THURSDAY, FEBRUARY 17, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0638E
SUNSET:  1719E

EVEN MILDER THAN YESTERDAY, AND JUST AS WINDY ATOP
GREAT BLUE HILL….

Today we observed mostly cloudy skies becoming overcast in
the afternoon hours. Wind was significant with an average
speed over 20 mph and a max gust of around 40 mph. The wind
component is mostly southwesterly as a new, much warmer air mass
crashes into the region. Pressure has dropped by over 20 millibars
overnight, and any snow depth from the last event is complete
history as of this morning.

The weather is in no way characteristic of mid-February,
the temperatures are more in line with April or May.

The high so far today is 58F, 21 degrees over the normal
high of 37F. The low since midnight is 43F, which is 23 degrees
above the normal minimum of 20F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Scattered altocumulus, broken cirrocumulus
Temperature: 45F; Dew Point: 41F; Relative Humidity: 85%
Wind: SSW @ 19G25 kts
Sea-level pressure: 1023.3 mb; 30.22 in. Hg: falling, then
more rapidly
Visibility: 40 miles
6-hr Max temp: 47F
6-hr Min temp: 43F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1155 65 SCT 250 BKN 40 233/45/41/2019G25/022/ 8/079
58016 10047 20043

10 A.M.
Weather: Scattered altocumulus, broken cirrostratus
Temperature: 54F; Dew Point: 43F; Relative Humidity: 66%
Wind: SW @ 17G30 kts, peak of 42 mph SW at 9:01 A.M.
Sea-level pressure: 1021.6 mb; 30.17 in Hg: falling, then
more slowly
Visibility: 45 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 65 SCT 250 BKN 45 216/54/43/2217G30/017/
PK WND 2237/01/ 8/076 56017

1 P.M.
Weather: Scattered stratocumulus, broken altocumulus,
overcast cirrostratus
Temperature: 56F, Dew point: 45F; Relative Humidity: 66%
Wind: SSW @ 19G27 kts, peak of 32 mph SSW at 12:27 P.M.
Sea-level pressure: 1018.5 mb; 30.08 in Hg: falling, then
more rapidly
Visibility: 65 miles
6-hr Max temp: 58F
6-hr Min temp: 45F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: Trace
BHO SA 1755 40 SCT 65 BKN 250 OVC 60 185/56/45/2019G27/008/
PK WND 2228/27/ 8/877 58031 10058 20045

SUMMARY FOR WEDNESDAY, FEBRUARY 16, 2022

TEMPERATURE (DEGREES F)
MAX…….43     NORMAL…..37
MIN…….16     NORMAL…..20
MEAN……30     NORMAL…..28

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+2
TOTAL DEPARTURE FOR THE MONTH……………………..+53 [+3.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………35  DEPARTURE……..-2
TOTAL HEATING UNITS FOR THE MONTH…………..554  DEPARTURE…….-52
TOTAL HEATING UNITS FOR THE SEASON…………3695  DEPARTURE……-315
TOTAL HEATING UNITS LAST SEASON TO DATE…….3644  DEPARTURE…….+51

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….49 S   @  8:43 P.M.
AEROVANE……………….51 S   @  9:47 P.M.
VECTOR #2 (Instantaneous)..52     @  8:43 P.M.
DAVIS #2 ………………51 S   @  9:24 P.M.
RMY #2 (Instantaneous)…..52 S   @  9:49 P.M.
ASOS………..OUT OF SERVICE D/T RENOVATIONS
VECTOR #1……OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…….OUT OF SERVICE D/T RENOVATIONS
RMY #1………OUT OF SERVICE D/T RENOVATIONS
MERLIN………OUT OF SERVICE D/T RENOVATIONS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………34 S   @  9:50 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..35     @  9:49 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………35 S   @  9:30 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..35 S   @  9:49 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE…….OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE…OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE..OUT OF SERVICE D/T RENOVATIONS
MAXIMUM 2-MINUTE RMY #1 AVERAGE…..OUT OF SERVICE D/T RENOVATIONS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL…….18.9 WNW [453 total miles] VECTOR #2……………..19.0
DAVIS #2………………19.0 SSW
RMY #2………………..19.3 SSW
RMY #1…………..OUT OF SERVICE D/T RENOVATIONS
ASOS…………….OUT OF SERVICE D/T RENOVATIONS
VECTOR #1………..OUT OF SERVICE D/T RENOVATIONS
DAVIS #1…………OUT OF SERVICE D/T RENOVATIONS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….0.00  DEPARTURE…..-0.14
TOTAL PRECIPITATION FOR THE MONTH………….3.10  DEPARTURE…..+0.94
TOTAL PRECIPITATION FOR THE YEAR…………..7.69  DEPARTURE…..+1.03

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE MONTH……………….9.7  DEPARTURE……-0.9
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..57.8  DEPARTURE…..+13.5

PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 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

2/01  31/16/24/-2/T/0.2/018/03            19 NNE AERO 18 NNE RMY 19
2/02  44/31/38/+12/T/0.0/096/16           20 SSE AERO 21 SSE RMY 20
2/03  47/36/42/+16/0.16/0.0/000/00        27 SSW AERO 28 SSW RMY 28
2/04  49/19/34/+8/1.53/0.7/000/00         35 NNE AERO 37 NNE RMY 38
2/05  21/11/16/-11/0.01/0.2/251/41        25 NW  AERO 25 NW  RMY M
2/06  27/5/16/-11/0.00/0.0/570/93         20 NNW AERO 21 NNW RMY M
2/07  41/21/31/+4/0.59/0.2/000/00         25 ESE AERO 23 ESE RMY 25
2/08  39/30/35/+8/0.27/0.0/006/01         33 W   AERO 32 WNW RMY 34
2/09  42/24/33/+6/0.00/0.0/608/98         30 WNW AERO 29 WNW RMY 31
2/10  50/31/41/+14/0.00/0.0/312/50        36 W   AERO 37 SW  RMY 38
2/11  52/32/42/+15/0.00/0.0/569/91        32 S   AERO 31 S   RMY 34
2/12  59/35/47/+19/0.00/0.0/433/69        50 W   AERO 46 W   RMY 48
2/13  35/22/29/+1/0.41/5.7/000/00         26 WNW AERO 21 WNW RMY 26
2/14  22/6/14/-14/0.13/2.7/…/..         43 WNW AERO 40 WNW RMY 43
2/15  25/2/14/-14/0.00/0.0/…/..         31 W   AERO 28 W   RMY 31
2/16  43/16/30/+2/0.00/0.0/…/..         49 S   AERO 51 S   RMY 52

2/17  The low since midnight is 43F, the daily normal low is 20F

DAILY RECORDS FOR FEBRUARY 2022

2/12/22: DAILY RECORD HIGH MAXIMUM TEMPERATURE OF 59F,
SURPASSES PREVIOUS RECORD OF 56F SET IN 1999

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

RECORDS FOR FEBRUARY 17
HIGH 61F IN 1981
LOW -16F IN 1896
PRECIP 1.86 INCHES IN 2003
SNOWFALL 20.0 INCHES IN 2003
PEAK GUST 72 MPH NW IN 1968

RECORDS FOR FEBRUARY 18
HIGH 65F IN 1981
LOW -10F IN 1958
PRECIP 1.97 INCHES IN 1887, IN 1952
SNOWFALL 9.2 INCHES IN 1952
PEAK GUST 70 MPH S IN 2008

TODAY’S REPORT PREPARED BY: Benjamin Turner