Sunday, February 3, 2019

| February 3, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 3, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDY WARM DAY WITH LIGHT WIND SHIFTING TO THE EAST
FROM THE WEST…

Today has been seasonal with a high so far of 35F. Low level
clouds dominated the sky today, creating overcast
conditions at each observation. Early this morning, winds
prevailing from the west shifted to easterly winds around
4 A.M. Haze has stuck around in the area, restricting
visibility to only about 20 miles all day.

Today’s Observations:

7 A.M.
Weather: Overcast stratus
Temperature: 27F; Dew Point: 20F; Wind: E at 6 kts,
Wind: light
Sea-level pressure: 30.17 ins. Hg, rising unsteadily
Visibility: 20 miles, distant haze in all directions
6-hr Max temp: 30F
6-hr Min temp: 27F
24-hr Precip: 0.00 ins.
24-hr snowfall: 0.0 ins.
Snow depth: Trace
BHO SA 1155 E30 OVC 20 216/27/20/0906/017/ DSNT HZ
ALQDS WND LGT/ 8/600 53015 10030 20027

10 A.M.
Weather: Overcast stratus
Temperature: 30F; Dew Point: 22F; Wind: SE at 4 kts
Wind: light
Sea-level pressure: 30.21 ins. Hg, rising, then more slowly
Visibility: 20 miles, distant haze in all directions
3-hr Precip: 0.00 ins.
BHO SA 1455 E30 OVC 20 231/30/22/1404/021/ DSNT HZ ALQDS
WND LGT/ 8/600 51015

1 P.M.
Weather: Overcast stratus
Temperature: 35F; Dew Point: 24F; Wind: SSE at 7 kts
Sea-level pressure: 30.16 ins. Hg, falling, then more quickly
Visibility: 20 miles, distant haze in all directions
6-hr Max temp: 35F
6-hr Min temp: 27F
6-hr Precip:  0.00 ins.
6-hr snowfall: 0.0 ins.
Snow depth: Trace
BHO SA 1755 E30 OVC 20 212/35/24/1607/016/ DSNT HZ ALQDS/
8/600 58019 10035 20027

SUMMARY FOR SATURDAY, FEBRUARY 2, 2019

TEMPERATURE (DEGREES F)
MAX…..30   NORMAL…..34
MIN……7   NORMAL…..17
MEAN….19   NORMAL…..26

DEPARTURE FROM 30-YEAR NORMAL……………………-7
TOTAL DEPARTURE FOR THE MONTH…………………..-21 [-10.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..46   DEPARTURE………+7
TOTAL HEATING UNITS FOR THE MONTH…………..99   DEPARTURE………21
TOTAL HEATING UNITS FOR THE SEASON………..3549   DEPARTURE……..-14
TOTAL HEATING UNITS LAST SEASON TO DATE……3394   DIFFERENCE……+199

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..32 WSW AT  4:44 P.M.
AERO…………………….32 WSW AT  4:42 P.M.
ASOS…………………….33 SW  AT  4:45 P.M.
DAVIS……………………34 WSW AT  4:45 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………….26 SW  AT  6:05 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….24 SW  AT  6:06 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………25 SW  AT  6:06 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..13.1 WSW
ASOS…………………..13.2
DAVIS………………….13.4 WSW [252 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE…….-0.13
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.00  DEPARTURE…….-0.27
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE YEAR………..5.35  DEPARTURE…….+0.73
ASOS…………..5.48

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE……..-0.5
TOTAL SNOWFALL FOR THE MONTH…………….0.0  DEPARTURE……..-1.0
TOTAL SNOWFALL FOR THE SEASON…………..12.4  DEPARTURE…….-21.7

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

01/01 54/29/42/+15/…./0.0/386/72         53 W   AERO 53 W   RMY 54
01/02 34/24/29/+2/…./…/432/81          22 NW  AERO 22 NW  RMY N/A
01/03 42/28/35/+9/0.01/T/228/43            28 WNW AERO 30 WNW RMY 30
01/04 43/30/37/+11/…./…/354/66         29 SW  AERO 29 SW  RMY 29
01/05 41/32/37/+11/1.19/000/000/00         26 NE  AERO 25 NNW RMY 27
01/06 42/21/32/+6/0.00/0.0/300/56          42 NW  AERO 46 NW  RMY 50
01/07 26/14/20/-6/…/…/474/88     37 NW  AERO 41 NW  RMY N/A
01/08 40/24/32/+6/…/…/000/00           24 SSE AERO 23 SSE RMY N/A
01/09 42/31/37/+11/…/…/084/16          44 W   AERO 46 WNW RMY 45
01/10 32/20/26/+1/T/T/090/17               37 NW  AERO 41 NW  RMY 43
01/11 26/12/19/-6/0.00/0.0/366/68          36 WNW AERO 37 WNW RMY 38
01/12 26/9/18/-7/0.00/0.0/486/89           32 NW  AERO 32 NW  RMY 29
01/13 25/11/18/-7/0.00/0.0/456/84          18 NNW AERO 16 NW  RMY N/A
01/14 27/20/24/-1/0.00/0.0/120/22          20 NNE AERO 17 N   RMY N/A
01/15 34/18/26/1/0.00/0.0/402/73     22 NW  AERO 21 NNW RMY N/A
01/16 34/23/29/+4/0.00/0.0/270/47          33 W   AERO 32 W   RMY 35
01/17 27/13/20/-5/0.00/0.0/480/87          30 NNW AERO 28 NW  RMY N/A
01/18 40/21/31/+6/0.00/0.0/156/28          18 WNW AERO 18 WNW RMY N/A
01/19 31/24/28/+3/…/1.6/198/36           30 E   AERO 30 E   RMY N/A
01/20 33/3/18/-7/…/…/000/00            39 ENE AERO 43 ENE RMY 39
01/21 3/-2/1/-24/0.00/0.0/348/62           32*WNW AERO 41 WNW RMY M
01/22 24/0/12/-13/0.00/0.0/…/..          28 NW  AERO 30 NW  RMY 29
01/23 46/15/31/+6/0.00/0.0/…/..          37 SSW AERO 39 SSW RMY N/A
01/24 57/31/44/+19/1.44/0.0/…/..         77 S   AERO 79 S   RMY N/A
01/25 37/23/30/+5/0.00/0.0/…/..          41 WNW AERO 46 WNW RMY N/A
01/26 33/17/25/0/0.00/0.0/…/..           25 W   AERO 25 W   RMY 27
01/27 44/24/34/+9/0.00/0.0/…/..          39 S   AERO 39 S   RMY 41
01/28 30/19/28/+3/…./…/…/..          28 NW  AERO 28 NW  RMY N/A
01/29 32/19/26/+1/…./…/…/..          22 SE  AERO 21 E   RMY N/A
01/30 36/3/20/-6/…./0.5/…/..           52 W   AERO 53 W   RMY 57
01/31 14/-2/6/-20/0.00/0.0/…/..          33 WNW AERO 35 WNW RMY N/A

02/01 19/5/12/-14/0.00/0.0/…/..          29 W   AERO 28 W   RMY N/A
02/02 30/7/19/-7/0.00/0.0/…/..           32 WSW AERO 32 WSW RMY 31

02/03 Low temp since midnight is 27F; normal low is 17F

*Official gust chart reading low

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

RECORDS FOR FEBRUARY 3
HIGH 58F IN 1991
LOW -7F IN 1955
PRECIP 2.14 INS. IN 1970
SNOWFALL 7.0 INS. IN 1913
PEAK GUST 102 MPH S IN 1970 [RECORD FOR MONTH]

RECORDS FOR FEBRUARY 4
HIGH 63F IN 1991
LOW -4F IN 1886, 1908
PRECIP 1.80 INS. IN 1926
SNOWFALL 15.0 INS. IN 1961
PEAK GUST 89 MPH SSE IN 1972

TODAY’S REPORT PREPARED BY: Samantha Richard

Category: Daily Discussions

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