Tuesday, April 19, 2022
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
TUESDAY, APRIL 19, 2022
ALL TIMES ARE IN EASTERN STANDARD TIME
SUNRISE: 0457E
SUNSET: 1830E
COASTAL STORM BROUGHT HEAVY RAIN OVERNIGHT; DRYING OUT THIS AFTERNOON….
A coastal storm moving northward through southern New England
early this morning brought periods of heavy rainfall to the
region during the overnight hours. 0.96″ of needed rain was
measured here on the hill.
In addition to heavy rain, gusty winds were also observed with
a peak gust of 55mph occuring this morning.
As the storm moves into northern New England this afternoon,
breaks in the clouds this afternoon are allowing for partial sunshine
and drying conditions. However this sunshine is also helping to build
up more rain/snow showers to the southwest through northwest of
the Hill.
Temperatures are responding to the sunshine with readings getting
into the low to mid 50s.
It has remained windy with the wind shifting to the southwest this
afternoon. Gusts exceeding 40mph continue to occur frequently.
Visibility is improving as well, getting upwards to 50 miles this
afternoon after being limited by fog this morning.
The high so far today is 55F, which is 3 degrees below the
normal maximum of 58F. The low since midnight is 40F, which
is 1 degree above the normal minimum of 39F.
————————————————————–
Today’s Observations:
7 A.M.
Weather: Broken stratus fractus, overcast stratus, light drizzle
Temperature: 53F; Dew Point: 53F; Relative Humidity: 99%
Wind: SSE @ 26G42 kts, peak wind SSE 48 mph at 6:51 A.M.
Sea-level pressure: 998.2 mb; 29.48 in. Hg: falling, then more slowly
Visibility: 5 miles, fog
6-hr Max temp: 53F
6-hr Min temp: 40F
24-hr Precip: 0.96 ins.
24-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1155 E3 BKN 100 OVC 5L-F 982/53/53/1626G42/948/ R-E10L-B10
PCPN VRY LGT PK WND 1642/51/ 8/7// 56041 6095/ 70096 10053 20040
10 A.M.
Weather: Overcast stratus
Temperature: 48F; Dew Point: 45F; Relative Humidity: 89%
Wind: S @ 20G31 kts, peak wind S 50 mph at 9:14 A.M.
Sea-level pressure: 998.3 mb; 29.48 in Hg: falling, then rising
Visibility: 15 miles, thin fog
3-hr Precip: Trace
3-hr Snowfall: 0.0 ins.
BHO SA 1455 E10 OVC 15 983/48/45/1820G31/948/ THN F ALQDS L-E11
PK WND 1743/14/ 8/6// 53001 6000/
1 P.M.
Weather: Broken stratocumulus, broken altocumulus/altostratus,
virga distant SW-NW
Temperature: 50F, Dew point: 38F; Relative Humidity: 62%
Wind: SW @ 22G36 kts, peak wind SW 45 mph at 12:42 P.M.
Sea-level pressure: 1001.9 mb; 29.59 in Hg: rising, then more rapidly
Visibility: 50 miles
6-hr Max temp: 55F
6-hr Min temp: 46F
6-hr Precip: Trace
6-hr Snowfall: 0.0 ins.
Snow Depth: 0 ins.
BHO SA 1755 E30 BKN 120 50 019/50/38/2222G36/959/ VIRGA DSNT SW-NW
PK WND 2239/42/ 8/570 53036 6000/ 10055 20046
————————————————————–
SUMMARY FOR MONDAY, APRIL 18, 2022
TEMPERATURE (DEGREES F)
MAX…….55 NORMAL…..58
MIN…….32 NORMAL…..39
MEAN……44 NORMAL…..48
DEPARTURE FROM 30-YEAR (1991-2020) NORMAL…….-4
TOTAL DEPARTURE FOR THE MONTH………………+67 [+3.5 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON: JUL 2021 THRU JUN 2022)
TOTAL HEATING UNITS FOR YESTERDAY………….21 DEPARTURE……..+4
TOTAL HEATING UNITS FOR THE MONTH…………300 DEPARTURE…….-69
TOTAL HEATING UNITS FOR THE SEASON……….5163 DEPARTURE……-552
TOTAL HEATING UNITS LAST SEASON TO DATE…..5168 DEPARTURE……..-5
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)…….35 E @ 11:44 P.M.
AEROVANE……………….30 E @ 11:43 P.M.
VECTOR #2 (Instantaneous)..37 @ 11:44 P.M.
DAVIS #2 ………………33 E @ 11:43 P.M.
RMY #2 (Instantaneous)…..34 E @ 11:44 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………………24 E @ 11:42 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..23 @ 11:45 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………24 E @ 11:45 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..23 E @ 11:45 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……..10.3 ESE [248 total miles]
VECTOR #2………………10.8
DAVIS #2……………….10.7 ESE
RMY #2…………………10.7 E
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…….0.96 DEPARTURE…..+0.81
TOTAL PRECIPITATION FOR THE MONTH………….2.67 DEPARTURE…..-0.36
TOTAL PRECIPITATION FOR THE YEAR………….15.98 DEPARTURE…..-1.07
SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………….0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH……………..TRACE DEPARTURE……-2.5
TOTAL SNOWFALL FOR THE SEASON (2021-2022)…..70.7 DEPARTURE……+1.3
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/+11/0.06/0.0/349/44 32 W AERO 30 W RMY 31
4/13 71/47/59/+13/0.00/0.0/670/84 33 S AERO 31 S RMY 35
4/14 50/43/47/0/0.16/0.0/000/00 19 N AERO 18 N RMY 18
4/15 66/43/55/+8/T/0.0/691/86 37 S AERO 37 S RMY 39
4/16 70/40/55/+8/0.40/0.0/314/39 42 S AERO 53 SSW RMY 45
4/17 48/36/42/-6/0.01/T/461/57 38 N AERO 36 N RMY 39
4/18 55/32/44/-4/0.00/0.0/616/76 35 E AERO 30 E RMY 34
4/19 The low since midnight is 40F, the daily normal low is 39F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated)
RECORDS FOR APRIL 19
HIGH 94 IN 1976 [RECORD FOR MONTH]
LOW 21 IN 1890
PRECIP 1.71 IN 1969
SNOWFALL 1.3 IN. IN 1967
PEAK GUST 66 MPH E IN 1984
RECORDS FOR APRIL 20
HIGH 88 IN 1927
LOW 18 IN 1897
PRECIP 1.14 IN 1972
SNOWFALL 2.5 IN. IN 1904, 1972
PEAK GUST 76 MPH WNW IN 1963
TODAY’S REPORT PREPARED BY: Matt Douglas
