Friday, February 18, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
FRIDAY, FEBRUARY 18, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0636E
SUNSET: 1720E
RECORD WARMTH, GUSTY WINDS, RAIN BEFORE COLD FRONT SWEEPS THROUGH…
Hopefully you took your winter gear along this morning as things will
turn noticeably colder as we approach sunset! But first things first:
Yesterday’s minimum temperature of 43F set a new record for the highest
low temp for the date – this beats the old value of 38F observed in
1981. To coincide, winds cranked from the southwest allowing for this
abnormally warm air to invade the region. 593 miles of air traversed
over the summit for a daily average of 24.7 MPH!
The mild, windy conditions once again greeted us here at sunrise. 58F
read the mercury with a dew point of 58F(!) at 7am. However, soon after
the observation, a cold front finally passed switching the wind direction
from the SSW to NW. In response, the temperature and dew point have crashed.
As of 1pm, the dry bulb was noted at 42F with a dew point of 27F and falling
…a sharp change!
The high today is 59F, 21 degrees over the normal high of 38F. The low since
midnight is 42F, which is 22 degrees above the normal minimum of 20F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Overcast Stratus Fractus, Light Drizzle, Fog
Temperature: 58F; Dew Point: 58F; Relative Humidity: 100%
Wind: SW @ 31G47 kts (Peak Wind: 54 MPH (47kts) SW @ 6:47am)
Sea-level pressure: 990.1mb; 29.24 in. Hg: Falling, then falling more slowly
Visibility: 3 miles
6-hr Max temp: 58F
6-hr Min temp: 53F
24-hr Precip: 0.62 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0.0 ins.
BHO SA 1155 13 OVC 3L-F 901/58/58/2331G47/924/ PCPN VRY LGT
PK WND 2347/46/ 8/6// 56040 70062 10058 20053
10 A.M.
Weather: Overcast Altocumulus (few stratocumulus NE-SE)
Temperature: 47F; Dew Point: 37F; Relative Humidity: 68%
Wind: NW @ 25G47 kts (Peak Wind: 54 MPH (47 kts) NW @ 9:52am)
Sea-level pressure: 994.2 mb; 29.36 in Hg: Rising rapidly
Visibility: 80 miles
3-hr Precip: 0.11 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 80 OVC 80 942/47/37/3125G47/936/ FEW BINOVC OVHD
FEW SC DSNT NE-SE PRESRR PK WND 3147/52/ 8/67/ 55041 6011/
1 P.M.
Weather: Scattered Stratocumulus
Temperature: 42F, Dew point: 27F; Relative Humidity: 55%
Wind: NW @ 25G36 kts (Peak Wind: 41 MPH (36 kts) NW @ 12:50pm)
Sea-level pressure: 1001.5 mb; 29.57 in Hg: Rising rapidly
Visibility: 75 miles
6-hr Max temp: 59F
6-hr Min temp: 42F
6-hr Precip: 0.11 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0.0 ins.
BHO SA 1755 45 SCT 75 015/42/27/3125G36/957/ PRESRR
PK WND 3136/50/ 8/400 52073 6011/ 10059 20042
SUMMARY FOR THURSDAY, FEBRUARY 17, 2022
TEMPERATURE (DEGREES F)
MAX…….59 NORMAL…..37
MIN…….43 NORMAL…..20
MEAN……51 NORMAL…..29
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…………..+22
TOTAL DEPARTURE FOR THE MONTH……………………..+75 [+4.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………14 DEPARTURE…….-22
TOTAL HEATING UNITS FOR THE MONTH…………..568 DEPARTURE…….-75
TOTAL HEATING UNITS FOR THE SEASON…………3709 DEPARTURE……-337
TOTAL HEATING UNITS LAST SEASON TO DATE…….3684 DEPARTURE…….+25
PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….49 SW @ 7:47 P.M.
AEROVANE……………….48 SW @ 7:47 P.M.
VECTOR #2 (Instantaneous)..56 @ 7:47 P.M.
DAVIS #2 ………………49 SW @ 11:18 P.M.
RMY #2 (Instantaneous)…..53 SW @ 7:47 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………………36 SSW @ 8:18 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..36 @ 8:18 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………35 SW @ 2:19 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..36 SSW @ 8:18 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…….24.7 SSW [593 total miles]
VECTOR #2……………..24.5
DAVIS #2………………23.8 SW
RMY #2………………..24.8 SW
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…….0.62 DEPARTURE…..+0.47
TOTAL PRECIPITATION FOR THE MONTH………….3.72 DEPARTURE…..+1.41
TOTAL PRECIPITATION FOR THE YEAR…………..8.31 DEPARTURE…..+1.50
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……-1.5
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..57.8 DEPARTURE…..+12.9
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 59/43/51/22/…/0.0/…/.. 49 SW AERO 48 SW RMY 53
2/18 The low since midnight is 47F, 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
2/17/22: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 43F,
SURPASSES PREVIOUS RECORD OF 38F SET IN 1981
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
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
RECORDS FOR FEBRUARY 19
HIGH 66F IN 1981
LOW -5F IN 1923
PRECIP 2.73 INCHES IN 1972
SNOWFALL 8.9 INCHES IN 1964
PEAK GUST 76 MPH ENE IN 1972
TODAY’S REPORT PREPARED BY: Andrew Swanson
