Tuesday, January 18, 2022

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

TUESDAY, JANUARY 18, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0709E
SUNSET:  1641E

MIX OF SUN AND CLOUDS, COLD AND STILL WINDY….

Still plenty of wind to deal with in the wake of yesterday’s
powerful storm system. A mix of sun and clouds have been the
theme today, however temperatures have been struggling to get
out of the 20s. Add the gusty winds and it feels like it’s
mainly in the teens today.. brrr!

Frequent gusts over 40mph have been occurring today with a peak
gust so far measured at 46mph. The average speed for the day
thus far is around 21mph out of the WNW to NW!

Visibility is good, but not as great as one might think
considering how low the dew point is. Generally we’re seeing
around 60 miles early this afternoon, up from 40 miles early
this morning.

The high so far today is 32F which occurred back at midnight,
this is 2 degrees below the normal high of 34F. The low since
midnight is 23F, which is 5 degrees above the normal low of 18F.

————————————————————–

Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus distant all quadrants, few cirrus
all quadrants
Temperature: 23F; Dew Point: 15F; Relative Humidity: 71%
Wind: WNW @ 18G30 kts, peak wind 38 mph WNW at 6:36 A.M.
Sea-level pressure: 998.8 mb; 29.50 in. Hg: rising, then more rapidly
Visibility: 40 miles
6-hr Max temp: 30F
6-hr Min temp: 23F
24-hr Precip:  0.44 ins.
24-hr Snowfall: Trace
Snow Depth: 0 ins.
BHO SA 1155 CLR 40 988/23/15/2918G30/950/ FEW SC DSNT ALQDS FEW CI ALQDS
PK WND 2933/36/ 8/501 53054 70044 10030 20023

10 A.M.
Weather: Broken cirrus, few stratocumulus all quadrants
Temperature: 25F; Dew Point: 14F; Relative Humidity: 62%
Wind: WNW @ 16G25 kts, peak wind 46mph WNW at 9:13 A.M.
Sea-level pressure: 1003.9 mb; 29.65 in Hg; rising, then more rapidly
Visibility: 60 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E200 BKN 250 BKN 60 039/25/14/2916G25/965/ FEW SC ALQDS
PK WND 2940/13/ 8/502 53051

1 P.M.
Weather: Scattered stratocumulus
Temperature: 28F, Dew point: 12F; Relative Humidity: 51%
Wind: NW @ 18G30 kts, peak wind 36 mph NW at 12:13 P.M.
Sea-level pressure: 1005.8 mb; 29.70 in Hg; rising steadily
Visibility: 60 miles
6-hr Max temp: 31F
6-hr Min temp: 23F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 45 SCT 60 058/28/12/3218G30/970/ PK WND 3131/13/ 8/500 52019
10031 20023

SUMMARY FOR MONDAY, JANUARY 17, 2022

TEMPERATURE (DEGREES F)
MAX…….46     NORMAL…..34
MIN…….31     NORMAL…..18
MEAN……39     NORMAL…..26

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………+13
TOTAL DEPARTURE FOR THE MONTH……………………….-2 [-0.3 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY……………26  DEPARTURE…….-13
TOTAL HEATING UNITS FOR THE MONTH…………..646  DEPARTURE……..+1
TOTAL HEATING UNITS FOR THE SEASON…………2532  DEPARTURE……-323
TOTAL HEATING UNITS LAST SEASON TO DATE…….2471  DEPARTURE…….+61

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….65 ESE @  6:55 A.M.
AEROVANE……………….74 ESE @  6:55 A.M.
VECTOR #2 (Instantaneous)..74     @  6:55 A.M.
DAVIS #2 ………………69 SE  @  6:54 A.M.
RMY #2 (Instantaneous)…..72 ESE @  6:55 A.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………………43 ESE @  6:55 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..42     @  6:56 A.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………43 ESE @  6:56 A.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..41 ESE @  6:56 A.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…..22.7 SSW  [545 total miles] VECTOR #2……………22.4
DAVIS #2…………….22.7 S
RMY #2………………22.5 S
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…….0.44  DEPARTURE…..+0.29
TOTAL PRECIPITATION FOR THE MONTH………….2.51  DEPARTURE…..-0.05
TOTAL PRECIPITATION FOR THE YEAR…………. 2.51  DEPARTURE…..-0.05

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………..TRACE  DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………16.1  DEPARTURE……+6.4
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..18.8  DEPARTURE……-6.0

PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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

1/01  51/43/47/+18/0.08/0.0/000/00        21 SSE AERO 21 SSE RMY 22
1/02  48/29/39/+11/0.29/0.0/000/00        35 NW  AERO 36 NW  RMY 35
1/03  29/18/24/-4/0.00/0.0/000/00         31 NNW AERO 30 N   RMY 30
1/04  30/12/21/-7/0.00/0.0/546/99         25 S   AERO 24 S   RMY 25
1/05  49/25/37/+9/0.21/0.0/000/00         45 S   AERO 48 S   RMY 47
1/06  40/27/34/+6/0.00/0.0/316/57         36 WNW AERO 36 WNW RMY 36
1/07  28/17/23/-4/0.78/15.7/000/00        39 WNW AERO 38 WNW RMY 39
1/08  26/11/19/-8/0.00/0.0/556/100        34 WNW AERO 32 WNW RMY 34
1/09  41/19/30/+3/0.01/T/017/03           50 SW  AERO 51 SW  RMY 53
1/10  36/17/27/0/T/T/469/84               44 WNW AERO 43 WNW RMY 46
1/11  17/4/11/-16/T/0.1/560/100           36 NW  AERO 37 NW  RMY 35
1/12  40/5/23/-4/42/0.00/0.0/533/95       43 SSW AERO 44 SSW RMY 44
1/13  45/28/37/+11/0.00/0.0/332/59        22 SW  AERO 22 SW  RMY 22
1/14  38/12/25/-1/0.00/0.0/470/83         44 NW  AERO 41 N   RMY 43
1/15  13/1/7/-19/0.00/0.0/488/86          40 NW  AERO 39 NW  RMY 40
1/16  31/0/16/-10/0.00/0.0/…/..         29 ESE AERO 28 ESE RMY 30
1/17  46/31/39/+13/1.14/0.3/…/..        65 ESE AERO 74 ESE RMY 72

1/18  The low since midnight is 23F, the daily normal low is 18F

DAILY RECORDS FOR JANUARY 2022

1/1/22: DAILY RECORD HIGH MINIMUM TEMPERATURE OF 43F
SURPASSES PREVIOUS RECORD OF 42F SET IN 1966

1/17/22: DAILY RECORD PEAK GUST OF 65 MPH ESE,
SURPASSES THE PREVIOUS RECORD OF 62 MPH S IN 1994

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

RECORDS FOR JANUARY 18
HIGH 62F IN 1973, 1990
LOW -10F IN 1982
PRECIP 1.68 INS. IN 1915
SNOWFALL 13.0 INS. IN 1948
PEAK GUST 85 MPH SSE IN 2006

RECORDS FOR JANUARY 19
HIGH 59F IN 1973
LOW -11F IN 1887
PRECIP 2.34 INS. IN 1936
SNOWFALL 10.5 INS. IN 1936
PEAK GUST 93e MPH WNW IN 1943

TODAY’S REPORT PREPARED BY: Matt Douglas