Saturday, April 16, 2022

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

SATURDAY, APRIL 16, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0502E
SUNSET:  1827E

INCREASINGLY WINDY AND WARM WITH MOSTLY CLOUDY SKIES….

Today started windy and overcast with very thin upper
level cloud cover. Strong warm air advection is being
seen from the southwest, as winds are blowing in at
around 20 mph from that direction. The max gust seen
so far today is almost 40 mph!

Visibility is less than expected at 60 miles with dew
points in the mid to upper 30’s.

The high so far today is 69F, which is 12 degrees above the
normal maximum of 57F. The low since midnight is 50F, which
is 11 degrees above the normal minimum of 39F.

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Today’s Observations:

7 A.M.
Weather: Broken altostratus, thin overcast cirrostratus
Temperature: 55F; Dew Point: 30F; Relative Humidity: 38%
Wind: SSW @ 7G19 kts
Sea-level pressure: 1014.5 mb; 29.96 in. Hg: rising unsteadily
Visibility: 65 miles
6-hr Max temp: 55F
6-hr Min temp: 50F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 120 BKN 220 -OVC 65 145/55/30/2012G19/996/ SUN DMLY
VSBL/ 8/017 52004 10055 20050

10 A.M.
Weather: Broken altostratus, thin overcast cirrostratus
Temperature: 60F; Dew Point: 34F; Relative Humidity: 37%
Wind: SSW @ 19G26 kts
Peak Wind: 32 MPH (28 kts) SSW @ 9:28 A.M.
Sea-level pressure: 1013.8 mb; 29.94 in Hg: falling, then more
slowly
Visibility: 60 miles
3-hr Precip:  0.00 ins.
3-hr Snowfall: 0.0 ins.
BHO SA 1455 120 BKN 220 -OVC 60 138/60/34/2019G26/994/ SUN DMLY
VSBL PK WND 2028/28/ 8/017 56007

1 P.M.
Weather: Broken altocumulus, thin overcast cirrostratus,
few cumulus
Temperature: 68F, Dew point: 40F; Relative Humidity: 35%
Wind: SW @ 15G28 kts
Peak Wind: 37 MPH (32 kts) SW @ 12:37 PM
Sea-level pressure: 1011.6 mb; 29.87 in Hg: falling steadily
Visibility: 60 miles
6-hr Max temp: 69F
6-hr Min temp: 55F
6-hr Precip:  0.00 ins.
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 120 BKN 220 -OVC 60 116/68/40/2215G28/987/ FEW CU ALQDS
PK WND 2232/37/ 8/157 57022 10069 20055

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SUMMARY FOR FRIDAY, APRIL 15, 2022

TEMPERATURE (DEGREES F)
MAX…….66     NORMAL…..56
MIN…….43     NORMAL…..38
MEAN……55     NORMAL…..47

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….+8
TOTAL DEPARTURE FOR THE MONTH………………+69 [+4.4 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY………….10  DEPARTURE……..-8
TOTAL HEATING UNITS FOR THE MONTH…………246  DEPARTURE…….-71
TOTAL HEATING UNITS FOR THE SEASON……….5109  DEPARTURE……-555
TOTAL HEATING UNITS LAST SEASON TO DATE…..5097  DEPARTURE…….+12

COOLING DEGREE DAYS (SEASON: JAN 2022 THRU DEC 2022)
TOTAL COOLING UNITS FOR YESTERDAY…………..0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………..0  DEPARTURE……..-1
TOTAL COOLING UNITS FOR THE SEASON………….0  DEPARTURE……..-1
TOTAL COOLING UNITS LAST SEASON TO DATE……..0  DEPARTURE………0

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….37 S   @ 10:40 P.M.
AEROVANE……………….37 S   @ 10:39 P.M.
VECTOR #2 (Instantaneous)..39     @  6:23 P.M.
DAVIS #2 ………………37 SW  @  7:56 P.M.
RMY #2 (Instantaneous)…..39 S   @  6:23 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………………28 SSW @  8:26 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..29     @  8:25 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………28 SSW @  8:25 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..29 SSW @  8:25 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……..13.7 NW [328 total miles] VECTOR #2………………14.1
DAVIS #2……………….13.9 W
RMY #2…………………14.1 W
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…..-0.16
TOTAL PRECIPITATION FOR THE MONTH………….1.30  DEPARTURE…..-1.28
TOTAL PRECIPITATION FOR THE YEAR………….14.61  DEPARTURE…..-1.99

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0  DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………….0.0  DEPARTURE……-2.2
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+1.6

PRELIMINARY CLIMATE SUMMARY FOR APRIL 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

4/01  57/35/46/+5/0.41/0.0/183/24         56 WNW AERO 55 WNW RMY 58
4/02  52/34/43/+2/0.00/0.0/697/91         45 WNW AERO 43 WNW RMY 47
4/03  51/36/44/+2/0.03/0.0/215/28         23 NE  AERO 18 NE  RMY 23
4/04  56/35/46/+4/0.02/0.0/610/79         35 NW  AERO 30 NW  RMY 34
4/05  62/37/50/+7/0.00/0.0/698/90         25 SSW AERO 24 S   RMY 25
4/06  44/39/42/-1/0.22/0.0/000/00         33 ENE AERO 32 E   RMY 34
4/07  52/38/45/+1/0.06/0.0/000/00         50 ESE AERO 50 ESE RMY 53
4/08  61/42/52/+8/0.24/0.0/470/60         45 ESE AERO 45 SE  RMY 47 TSTM
4/09  59/39/49/+5/0.10/0.0/291/37         40 S   AERO 40 S   RMY 43
4/10  55/35/45/0/T/0.0/560/71             35 NW  AERO 32 NW  RMY 34
4/11  62/35/49/+4/T/0.0/728/92            31 NNW AERO 30 NNW RMY 31
4/12  68/46/57/+11/0.06/0.0/…/..        32 W   AERO 30 W   RMY 31
4/13  71/47/59/+13/0.00/0.0/…/..        33 S   AERO 31 S   RMY 35
4/14  50/43/47/0/…/0.0/…/..           19 N   AERO 18 N   RMY 18
4/15  66/43/55/+8/…./0.0/…/..         37 S   AERO 37 S   RMY 39

4/16  The low since midnight is 43F, the daily normal low is 38F

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

RECORDS FOR APRIL 16
HIGH 89 IN 2012
LOW 23 IN 1943
PRECIP 2.63 IN. IN 2018
SNOWFALL 3.6 IN. IN 2021
PEAK GUST 73 MPH E IN 2007

RECORDS FOR APRIL 17
HIGH 93 IN 2002
LOW 21 IN 1908
PRECIP 1.68 IN 1954
SNOWFALL 1.0 IN. IN 1899
PEAK GUST 63 MPH ESE IN 2011

TODAY’S REPORT PREPARED BY: Benjamin Turner