Saturday, November 15, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, NOVEMBER 15, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
COLDEST AIR OF THE SEASON SO FAR ARRIVING TODAY AFTER
DAILY RECORD SNOWFALL ON FRIDAY…
The outbreak of Arctic air that has overspread much of the
eastern two thirds of the country has arrived on the East Coast
today. The low temperature dropped to 27F by midnight last night
and to a minimum of 24F just before sunrise today, which is the
coldest reading so far this season. Almost all of the daily
record breaking 3.5 inches of snowfall that fell on Friday
morning melted during the day yesterday, and only a trace
remains on the summit today. Winds have been light from the
northwest all morning, and the visibility has been excellent
in the 75-80 mile range as much drier air arrives and drops
the dew point into the middle teens.
Today’s Observations:
7 A.M.
Weather: Clear, few altocumulus distant SE, few stratocumulus
distant SW-WNW, offshore NE-SE, and distant SSE-SSW, few stratocumulus
lenticularis WNW-NW
Temperature: 24F; Dew Point: 20F; Wind: NW at 10 kts
Sea-level pressure: 30.22 ins. Hg, rising
Visibility: 75 miles, visibility WNW 40 miles
6-hr max temp: 27F
6-hr min temp: 24F
24-hr precip: 0.00 inches
BHO SA 1155 CLR 75 234/24/20/3110/022/ FEW AC DSNT SE FEW SC DSNT
SW-NNW FEW SCSL WNW-NW FEW SC OFFSHR NE-SE AND DSNT SSE-SSW VSBY
WNW 40/ 8/570 51018 10027 20024
10 A.M.
Weather: Scattered stratocumulus
Temperature: 30F; Dew Point: 18F; Wind: NW at 10 kts
Sea-level pressure: 30.26 ins. Hg, rising
Visibility: 75 miles
BHO SA 1455 40 SCT 75 248/30/18/3110/026/ 8/500 51014
1 P.M.
Weather: Clear, few stratocumulus distant NE-SSW, few cumulus
fractus all quadrants
Temperature: 35F; Dew Point: 17F; Wind: WNW at 10 kts
Wind: Direction variable W-NW
Sea-level pressure: 30.23 ins. Hg, falling
Visibility: 80 miles
6-hr max temp: 35F
6-hr min temp: 24F
BHO SA 1755 CLR 80 236/35/17/2910/023/ FEW SC DSNT NE-SSW
FEW CUFRA ALQDS WND 26V32/ 8/500 58012 10035 20024
SUMMARY FOR FRIDAY, NOVEMBER 14, 2014
TEMPERATURE (DEGREES F)
MAX…..41 NORMAL…..51
MIN…..27 NORMAL…..34
MEAN….34 NORMAL…..42
DEPARTURE FROM 30-YEAR NORMAL…………………….-8
TOTAL DEPARTURE FOR THE MONTH…………………….+7 [+0.3 DEGREE/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..31 DEPARTURE………..+8
TOTAL HEATING UNITS FOR THE MONTH………….282 DEPARTURE………..-7
TOTAL HEATING UNITS FOR THE SEASON…………704 DEPARTURE………-148
TOTAL HEATING UNITS LAST SEASON TO DATE…….783 DIFFERENCE………-79
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………23 NW AT 3:08 P.M. *
ASOS…………………..27 WNW AT 1:44 P.M.
DAVIS………………….24 WNW AT 2:32 P.M. RMY 27
FASTEST MILE FOR YESTERDAY………………..19 WNW AT 2:48 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE……………..20 NW AT 11:04 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….17 WNW AT 3:07 P.M.
AVERAGE WIND SPEED AND DIRECTION…………11.3 NW
ASOS…………………11.1
DAVIS…………………9.2 NW (304 degrees)
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE…..-0.16
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.03 DEPARTURE…..-0.17
ASOS…………..2.03
TOTAL PRECIPITATION FOR THE YEAR……….43.58 DEPARTURE…..-2.39
ASOS………….43.90
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0 DEPARTURE…….0.0
TOTAL SNOWFALL FOR THE MONTH…………….5.3 DEPARTURE……+4.8
TOTAL SNOWFALL FOR THE SEASON……………5.3 DEPARTURE……+4.5
PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOWFALL/SUN(MIN.)/SUN(%)/ PEAK GUST/RMY 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
11/1 45/36/41/-5/0.79/0.0/000/00 35 NNE RMY N/A
11/2 37/32/35/-11/0.29/1.8/000/00 46 NW RMY 49
11/3 50/30/45/-6/0.00/0.0/584/95 39 WNW RMY 43
11/4 61/44/53/+8/0.00/0.0/208/34 28 SSW RMY 32
11/5 66/50/58/+13/0.00/0.0/006/01 29 SSW RMY N/A
11/6 52/45/49/+4/0.58/0.0/000/00 23 NE RMY 24
11/7 46/34/40/-5/0.00/0.0/079/13 39 NW RMY 42
11/8 47/30/39/-5/0.00/0.0/555/92 24 W RMY 25
11/9 56/38/47/+3/0.00/0.0/…/.. 23 SSW RMY N/A
11/10 58/40/49/+5/0.00/0.0/…/.. 17 S RMY 20
11/11 61/43/52/+9/0.00/0.0/…/.. 22 S RMY 25
11/12 59/40/50/+7/0.00/0.0/…/.. 22 W RMY 25
11/13 49/32/41/-2/0.08/T/…/.. 21 NW RMY N/A
11/14 41/27/34/-8/0.00/0.0/…/.. 23 NW RMY 27
11/15 morning low temp: 24F since midnight; normal low now 34F
DAILY RECORDS FOR NOVEMBER 2014:
11/2 – A NEW RECORD DAILY SNOWFALL: 1.8 INCHES;
surpasses the previous record of 0.2 ins. in 1906, 1951
11/14 – DAILY SNOWFALL RECORD EQUALED: 3.5 INCHES;
ties previous record on this date in 1997
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR NOVEMBER 15
HIGH 74 IN 1993
LOW 15 IN 1933
PRECIP 1.66 INCHES IN 1981
SNOWFALL 4.0 IN 1967
PEAK GUST 65 SSE IN 2008
RECORDS FOR NOVEMBER 16
HIGH 73 IN 1927
LOW 8 IN 1933
PRECIP 2.25 INCHES IN 1981
SNOWFALL 2.0 IN 1913
PEAK GUST 78 S IN 1989
TODAY’S REPORT PREPARED BY: Mike Iacono
