Friday, November 22, 2019

| November 22, 2019 | Reply

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 22, 2019
ALL TIMES ARE IN EASTERN STANDARD TIME

OVERCAST WITH DISTANT FOG AND A SOUTHERLY WIND….

We observed cloudy skies today, along with an average
visibility of 25 miles due to a distant fog. We measured
0.01 inches from this morning’s rainfall. Pressure has
fallen by more than 6 millibars since the 7 A.M. observation.
Wind has been out of the south, with a max gust so far today
of 30 mph.

The high so far today is 52F, which is 4 degrees above
the daily normal maximum of 48F. The low since midnight
is 38F, which is 6 degrees above the normal minimum of 32F.

Today’s Observations:

7 A.M.
Weather: Overcast altostratus
Temperature: 46F; Dew Point: 41F; Wind: SSW at 17G19 kts,
Peak Wind: 30 MPH (26 kts) SSW at 6:48 A.M.
Sea-level pressure: 29.79 ins. Hg, falling steadily
Visibility: 25 miles, distant fog
6-hr Max temp: 46F
6-hr Min temp: 39F
24-hr Precip:  0.01 ins.
24-hr Snowfall: 0.0 ins.
BHO SA 1155 E65 OVC 25 088/46/41/2017G19/979/ DSNT FG
ALQDS PK WND 2026/48/ 8/02/ 70001 56023 10046 20039

10 A.M.
Weather: Overcast altostratus
Temperature: 50F; Dew Point: 40F; Wind: SSW at 14G22 kts
Sea-level pressure: 29.70 ins. Hg, falling steadily
Visibility: 25 miles, distant fog
3-hr Precip: 0.00 ins.
BHO SA 1455 E65 OVC 25 057/50/40/2014G22/970/ DSNT FG
ALQDS/ 8/02/ 56031

1 P.M.
Weather: Broken stratus, overcast altostratus
Temperature: 52F; Dew Point: 40F; Wind: SW at 14G22 kts
Sea-level pressure: 29.59 ins. Hg, falling, then more
rapidly
Visibility: 25 miles, distant fog
6-hr Max temp: 52F
6-hr Min temp: 46F
3-hr Precip: 0.00 ins.
BHO SA 1755 E60 BKN E90 OVC 25 020/52/40/2114G22/959/
DSNT FG ALQDS/ 8/62/ 58037 10052 20046

SUMMARY FOR THURSDAY, NOVEMBER 21, 2019

TEMPERATURE (DEGREES F)
MAX…..46   NORMAL…..48
MIN…..30   NORMAL…..32
MEAN….38   NORMAL…..40

DEPARTURE FROM 30-YEAR NORMAL………………. -2
TOTAL DEPARTURE FOR THE MONTH……………….-97 [-4.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………27  DEPARTURE……..+2
TOTAL HEATING UNITS FOR THE MONTH…………..568  DEPARTURE……+111
TOTAL HEATING UNITS FOR THE SEASON…………1008  DEPARTURE…….-12
TOTAL HEATING UNITS LAST SEASON TO DATE…….1031  DEPARTURE…….-23

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………..21 NW  AT  5:46 A.M.
AERO…………………….21 NNW AT  2:54 A.M
ASOS…………………….22 NW  AT  5:48 A.M.
DAVIS……………………22 NNW AT  2:56 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………….16 NW  AT  5:54 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………….16 NW  AT  5:54 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE………………16 NW  AT  5:53 A.M.
AVERAGE WIND SPEED AND DIRECTION……………9.4 NW
ASOS……………………9.9
DAVIS…………………..9.7 WNW [293 deg.]

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.01  DEPARTURE……-0.15
ASOS…………..0.01
TOTAL PRECIPITATION FOR THE MONTH……….1.71  DEPARTURE……-1.60
ASOS…………..1.78
TOTAL PRECIPITATION FOR THE YEAR……….47.05  DEPARTURE……-0.04
ASOS………….47.25

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE…….-0.1
TOTAL SNOWFALL FOR THE MONTH…………….0.1  DEPARTURE…….-0.9
TOTAL SNOWFALL FOR THE SEASON……………0.1  DEPARTURE…….-1.2

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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

11/01  67/35/51/+5/…./0.0/534/86            67 S   AERO M  M   RMY N/A
11/02  50/31/41/-5/0.00/0.0/612/99            17 WNW AERO 14 W   RMY N/A
11/03  53/35/44/-2/0.00/0.0/567/92            25 WSW AERO 23 W   RMY 26
11/04  53/33/43/-2/0.00/0.0/546/89            24 S   AERO 20 S   RMY 24
11/05  54/44/49/+4/0.33/0.0/000/00            22 S   AERO 18 WNW RMY 28
11/06  51/36/44/-1/0.00/0.0/596/98            28 WSW AERO 23 W   RMY 27
11/07  55/38/47/+2/0.27/0.0/000/00            30 S   AERO 26 SSW RMY 32
11/08  38/23/31/-13/0.00/0.0/555/92           38 NW  AERO 37 WNW RMY 44
11/09  39/20/30/-14/0.00/0.0/583/97           22 S   AERO 18 S   RMY N/A
11/10  51/30/41/-3/0.00/0.0/174/29            30 SW  AERO 30 SW  RMY 31
11/11  52/39/46/+3/T/0.0/000/00               23 NE  AERO 22 NE  RMY 23
11/12  42/20/31/-12/0.08/0.1/000/00           37 WNW AERO 37 WNW RMY 41
11/13  28/15/22/-21/0.00/0.0/592/100          32 WNW AERO 32 WNW RMY 35
11/14  36/17/28/-14/0.00/0.0/136/23           18 SW  AERO 17 SW  RMY 20
11/15  51/32/42/0/0.00/0.0/553/94             25 WNW AERO 25 WNW RMY N/A
11/16  35/22/29/-13/0.00/0.0/580/99           35 NNW AERO 35 NNW RMY N/A
11/17  40/21/31/-10/T/T/…/..                28 ENE AERO 27 ENE RMY 29
11/18  36/32/34/-7/…./0.0/…/..            28 NNE AERO 29 N   RMY 31
11/19  42/36/39/-2/…/0.0/…/..             12 SSW AERO  9 NNW RMY N/A
11/20  38/33/36/-4/…./T/…/..              20 NW  AERO 18 NW  RMY 21
11/21  46/30/38/-2/0.00/0.0/…/..            21 NW  AERO 21 NW  RMY N/A

11/22 The low since midnight is 39F, daily normal minimum is 32F

DAILY RECORDS FOR NOVEMBER

11/13/19: DAILY RECORD LOW MAXIMUM TEMPERATURE OF 28F,
BREAKS PREVIOUS RECORD OF 30F SET IN 1920.
It was also the third earliest maximum temperature
colder than 30F on record, behind only 28F on 11/8/1894
and 29F on 11/12/1894.

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

RECORDS FOR NOVEMBER 22
HIGH 70 IN 1931
LOW 9 IN 2018
PRECIP 1.78 INS IN 2005
SNOWFALL 9.0 INS IN 1971
PEAK GUST 70e SE IN 1945

RECORDS FOR NOVEMBER 23
HIGH 73 IN 1931
LOW 9 IN 1888, 2018
PRECIP 2.33 INS IN 2006
SNOWFALL 5.5 INS IN 1989
PEAK GUST 64e S IN 1953

TODAY’S REPORT PREPARED BY: Benjamin Turner

Category: Daily Discussions

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