Friday, November 25, 2016
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, NOVEMBER 25, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
OVERCAST CONDITIONS CONTINUE TODAY WITH DRIZZLE
The sky has remained overcast for a second consecutive day today, with
no sunshine observed so far. Fog has been prevalent as well, but has
been broken enough at times to see higher cloud layers. Rain showers
yesterday evening left a total of 0.05 inches of rain at the summit. A
trace of snow was recorded for yesterday due to some ice pellets observed
mid-morning. Occasional light rain and drizzle has continued today, but no
additional measurable rain has fallen. Temperatures have climbed slowly
from a morning low of 38F to a high so far of 46F. Winds are very light
again today as well, with a peak gust for the day so far of only 14mph,
after just a 15mph peak gust yesterday.
7 A.M.
Weather: Sky partially obscured with fog and light drizzle
Temperature: 39F; Dew Point: 39F; Wind: ENE at 7 kts
Sea-level pressure: 30.29 ins. Hg, rising then rising more slowly
Visibility: 1/8 mile, except 1/16 mile NW-NNE, 1 mile ESE-S
6-hr Max temp: 41F
6-hr Min temp: 38F
24-hr precip: 0.05 in.
24-hr snowfall: Trace (ice pellets)
BHO SA 1155 -X E2 BKN 20 OVC 1/8L-F 258/39/39/0707/029/ F5 PCPN VRY LGT
NEW SNW PST 24 HRS TRACE IP VSBY NW-NNE 1/16 ESE-S 1/
8/72/ 51008 MANUAL 70005 ASOS 70005 10041 20038
10 A.M.
Weather: Light drizzle and fog, broken nimbostratus, overcast
altostratus, stratus fractus all quadrants mostly drifting below summit
Temperature: 42F; Dew Point: 42F; Wind: E at 8 kts
Sea-level pressure: 30.28 ins. Hg, rising then falling
Visibility: 1 miles, except 1/2 mile NNW-N, 3 miles E-S
3-hr precip: Trace
BHO SA 1455 E20 BKN 100 OVC 1L-F 254/42/42/0908/028/
STFRA ALQDS MSTLY DRFTNG BLO SMT PCPN VRY LGT
VSBY NNW-N 1/2 E-S 3/ 8/77/ 58004 MANUAL 600//
1 P.M.
Weather: Light rain, broken stratus/stratus fractus, overcast nimbostratus,
thin fog all quadrants, light drizzle became light rain past hour
Temperature: 46F; Dew Point: 44F; Wind: SE at 7 kts
Sea-level pressure: 30.21 ins. Hg, falling then falling more slowly
Visibility: 8 miles
6-hr Max temp: 46F
6-hr precip: Trace
BHO SA 1755 E10 BKN 25 OVC 8R- 229/46/44/1307/021/ THN FG ALQDS
L-BCMG R- PST HR/ 8/72/ 56025 MANUAL 600// 10046 20039
SUMMARY FOR THURSDAY, NOVEMBER 24, 2016 THANKSGIVING DAY
TEMPERATURE (DEGREES F)
MAX…..41 NORMAL…..47
MIN…..29 NORMAL…..31
MEAN….35 NORMAL…..39
DEPARTURE FROM 30-YEAR NORMAL……………………-4
TOTAL DEPARTURE FOR THE MONTH…………………..+61 [+2.3 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..30 DEPARTURE……….+4
TOTAL HEATING UNITS FOR THE MONTH………….473 DEPARTURE………-61
TOTAL HEATING UNITS FOR THE SEASON…………894 DEPARTURE……..-203
TOTAL HEATING UNITS LAST SEASON TO DATE…….869 DIFFERENCE……..+25
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….15 NNE AT 3:38 A.M.*
ASOS……………………16 NE AT 3:39 A.M.
DAVIS…………………..14 NNE AT 3:25 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY…………………12 NNE AT 3:35 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………13 NE AT 3:39 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..11 N AT 3:29 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..5.9 E
ASOS…………………..6.2
DAVIS………………….5.6 NNE [018 Deg.]
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.05 DEPARTURE……-0.11
ASOS…………..0.05
TOTAL PRECIPITATION FOR THE MONTH……….1.43 DEPARTURE……-2.36
ASOS…………..1.49
TOTAL PRECIPITATION FOR THE YEAR……….35.74 DEPARTURE…..-11.77
ASOS………….36.14
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……..Trace DEPARTURE…….-0.2
TOTAL SNOWFALL FOR THE MONTH…………..Trace DEPARTURE…….-1.4
TOTAL SNOWFALL FOR THE SEASON………….Trace DEPARTURE…….-1.7
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
11/1 55/29/42/-4/0.00/0.0/600/97 22 SSE AERO 22 S RMY N/A
11/2 69/45/57/+11/0.00/0.0/425/69 24 SSW AERO 24 S RMY 26
11/3 65/49/57/+11/0.01/0.0/025/04 38 W AERO 41 W RMY 38
11/4 56/35/46/+1/0.00/0.0/587/96 26 NW AERO 26 NW RMY 30
11/5 55/32/44/-1/0.00/0.0/250/41 24 W AERO 23 W RMY 24
11/6 49/39/44/-1/0.04/T/091/15 23 N AERO 23 N RMY 23
11/7 46/33/40/-5/0.00/0.0/423/70 21 N AERO 21 N RMY 20
11/8 64/36/50/+6/0.00/0.0/590/98 17 W AERO 15 SSW RMY N/A
11/9 60/43/52/+8/T/0.0/090/15 22 NNW AERO 22 NW RMY N/A
11/10 52/34/43/-1/0.00/0.0/507/85 28 SSW AERO 30 SSW RMY 31
11/11 59/35/47/+4/0.00/0.0/565/95 39 NW AERO 44 NW RMY 45
11/12 47/31/39/-4/0.00/0.0/…/.. 38 NW AERO 44 NW RMY 23
11/13 59/37/48/+5/0.00/0.0/519/88 23 W AERO 22 W RMY N/A
11/14 66/44/55/+13/0.00/0.0/547/93 24 WSW AERO 22 WSW RMY 25
11/15 57/46/52/+10/1.23/0.0/000/00 32 ENE AERO 33 ENE RMY 35
11/16 57/45/51/+9/0.04/0.0/000/00 26 W AERO 25 W RMY 28
11/17 55/41/48/+7/0.00/0.0/169/29 25 WNW AERO 29 NW RMY 29
11/18 60/38/49/+8/0.00/0.0/580/100 21 NNE AERO 22 N RMY 23
11/19 53/40/47/+6/0.02/0.0/445/77 18 ENE AERO 18 ENE RMY N/A
11/20 46/29/38/-2/0.04/0.0/006/01 37 SW* AERO 40 SW RMY N/A
11/21 36/28/32/-8/T/T/138/24 40 W AERO 44 W RMY 44
11/22 41/28/35/-5/0.00/0.0/…/.. 35 W AERO 37 W RMY 36
11/23 43/28/36/-3/0.00/0.0/…/.. 32 WNW AERO 33 WNW RMY N/A
11/24 41/29/35/-4/…./T/…/.. 15 NNE AERO 13 NNE RMY N/A
11/25 Low temp since midnight is 38F; normal low is now 31F
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 25
HIGH 71 IN 1979
LOW 13 IN 1938
PRECIP 3.10 INCHES IN 1983
SNOWFALL 8.0 INS IN 1888
PEAK GUST 94e E IN 1950
RECORDS FOR NOVEMBER 26
HIGH 66 IN 1979
LOW 6 IN 1938
PRECIP 2.22 INS IN 1888
SNOWFALL 3.0 INS IN 1974
PEAK GUST 78 SSE IN 1964
TODAY’S REPORT PREPARED BY: Jonathan O’Brien
