Thursday, April 14, 2022

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

THURSDAY, APRIL 14, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0505E
SUNSET:  1825E

WARMER THAN NORMAL TEMPERATURES WITH OVERCAST SKIES
THIS AFTERNOON….

Today we observed 15 miles of visibility due to a thin
fog in the distance. Wind is currently around 5 mph with
a max gust around 15 mph. The wind has a northerly component
and definitely makes conditions cooler than initially
projected.

Skies are overcast with a thick layer of stratus clouds. A
very light drizzle was observed around 10 A.M. This
eventuality only left a trace (at best).

Temperatures today are cooler than normal so far.

The high so far today is 50F, which is 6 degrees below the
normal maximum of 56F. The low since midnight is 44F, which
is 7 degrees above the normal minimum of 37F.

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Today’s Observations:

7 A.M.
Weather: Overcast stratus
Temperature: 47F; Dew Point: 43F; Relative Humidity: 89%
Wind: N @ 5 kts, wind light
Sea-level pressure: 1010.9 mb; 29.85 in. Hg: rising unsteadily
Visibility: 15 miles, thin fog
6-hr Max temp: 47F
6-hr Min temp: 44F
24-hr Precip:  0.00 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 10 OVC 15 109/47/43/3605/985/ THN F ALQDS WND LGT/
8/6// 52010 10047 20044

10 A.M.
Weather: Overcast stratus, very light drizzle
Temperature: 48F; Dew Point: 45F; Relative Humidity: 90%
Wind: N @ 7 kts
Sea-level pressure: 1010.9 mb; 29.85 in Hg: falling then rising
Visibility: 15 miles, thin fog
3-hr Precip:  Trace
3-hr Snowfall: 0.0 ins.
BHO SA 1455 10 OVC 15L- 109/48/45/3607/985/ THN F ALQDS L-B45
PCPN VRY LGT/ 8/6// 50000 6000/

1 P.M.
Weather: Overcast stratus
Temperature: 49F, Dew point: 45F; Relative Humidity: 86%
Wind: ENE @ 7 kts
Sea-level pressure: 1015.3 mb; 29.97 in Hg: falling then rising
Visibility: 15 miles, thin fog
6-hr Max temp: 50F
6-hr Min temp: 46F
6-hr Precip:  Trace
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 10 OVC 15 107/49/45/0707/984/ THN F ALQDS/ 8/6//
56002 6000/ 10050 20046

————————————————————–

SUMMARY FOR WEDNESDAY, APRIL 13, 2022

TEMPERATURE (DEGREES F)
MAX…….71     NORMAL…..55
MIN…….47     NORMAL…..37
MEAN……59     NORMAL…..46

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……+13
TOTAL DEPARTURE FOR THE MONTH………………+61 [+4.5 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY…………….6  DEPARTURE…….-13
TOTAL HEATING UNITS FOR THE MONTH…………..218  DEPARTURE…….-62
TOTAL HEATING UNITS FOR THE SEASON…………5081  DEPARTURE……-546
TOTAL HEATING UNITS LAST SEASON TO DATE…….5060  DEPARTURE…….+21

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………0
TOTAL COOLING UNITS FOR THE SEASON……………0  DEPARTURE………0
TOTAL COOLING UNITS LAST SEASON TO DATE……….0  DEPARTURE………0

PEAK WIND GUST (MPH):
Official (1-Sec AVG)…….33 S   @  4:33 P.M.
AEROVANE……………….31 S   @  3:58 P.M.
VECTOR #2 (Instantaneous)..34     @  4:46 P.M.
DAVIS #2 ………………35 S   @  1:26 P.M.
RMY #2 (Instantaneous)…..35 S   @  4:33 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………………25 S   @  4:34 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..25     @  4:34 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………25 SSW @  4:34 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..26 S   @  4:34 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…….10.0 S [240 total miles] VECTOR #2……………..10.8
DAVIS #2………………10.4 SW
RMY #2………………..10.8 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…….0.00  DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH………….1.14  DEPARTURE…..-1.11
TOTAL PRECIPITATION FOR THE YEAR………….14.45  DEPARTURE…..-1.82

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……-2.0
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7  DEPARTURE……+1.8

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  The low since midnight is 44F, 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 APRIL 14
HIGH 80 IN 1945
LOW 21 IN 1923
PRECIP 1.86 IN. IN 1935
SNOWFALL 8.4 IN. IN 1953
PEAK GUST 71e MPH W IN 1943

RECORDS FOR APRIL 15
HIGH 81 IN 1896
LOW 23 IN 1943
PRECIP 1.75 IN. IN 2007
SNOWFALL 1.0 IN. IN 1916, 1962
PEAK GUST 66 MPH E IN 2007

TODAY’S REPORT PREPARED BY: Benjamin Turner