Saturday, February 13, 2016
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SATURDAY, FEBRUARY 13, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME
TEMPERATURES REMAIN BELOW NORMAL AS ARCTIC AIR MOVES IN.
After a cold start, with temperatures in the lower teens,
highs reached up to 20 degrees before strong WNW winds
brought began to bring colder air in by the 1 o’clock
observation.
Clearing skies from this morning have increased the
visibility this afternoon, which is now approaching 80 miles.
Winds, which were very light early this morning, are now
gusting as high as 36 MPH.
A close eye will need to be kept on the record lows for
today and Sunday, as well as the record low high temperature
for Sunday with very cold air expected.
Today’s Observations:
7 A.M.
Weather: Thin overcast Altocumulus, Few Cumulus distant offshore
E-SE
Temperature: 14F; Dew Point: 9F; Wind: WNW at 9 kts,
Sea-level pressure: 29.78 ins. Hg, rising, then falling
Visibility: 30 miles
6-hr Max temp: 17F
6-hr Min temp: 14F
24-hr precip: 0.00
24-hr snowfall: 0.0
Snow depth: 8 ins.
BHO SA 1155 E100 -OVC 30 086/14/9/2909/978/ FEW CU DSNT OFFSHR
E-SE THN SPTS IN OVC SUN DMLY VSBL HAZY 8/11/ 58004 10017 20014
10 A.M.
Weather: Broken Altostratus, Scattered Cumulus
Temperature: 20F; Dew Point: 10F; Wind: estimated WNW at 17 kts
Sea-level pressure: 29.80 ins. Hg, rising, then falling, but higher still
Visibility: 70 miles
BHO SA 1455 045 SCT 075E BKN 092/20/10/3017/980/ SUN DMLY VSBL 8/11/ 50005
1 P.M.
Weather: Scattered Altocumulus, scattered cirrus, few cumulus distant
offshore E
Temperature: 19F; Dew Point: -2F; Wind: WNW at 18 kts,
Sea-level pressure: 29.79 ins. Hg, Rising, then falling
Visibility: 80 miles
6-hr Max temp: 20F
6-hr Min temp: 14F
BHO SA 1755 60 SCT 220 SCT 80 090/19/-2/2918/979/ FEW CU DSNT OFFSHR E
8/062/ 50004 10020 20014
SUMMARY FOR FRIDAY, FEBRUARY 12, 2016
TEMPERATURE (DEGREES F)
MAX…..23 NORMAL…..36
MIN……4 NORMAL…..19
MEAN….13 NORMAL…..27
DEPARTURE FROM 30-YEAR NORMAL……………………-14
TOTAL DEPARTURE FOR THE MONTH……………………+61 [+6.2 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..52 DEPARTURE………+15
TOTAL HEATING UNITS FOR THE MONTH………….401 DEPARTURE………-62
TOTAL HEATING UNITS FOR THE SEASON………..3143 DEPARTURE……..-850
TOTAL HEATING UNITS LAST SEASON TO DATE……3910 DIFFERENCE…….-767
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….31 WNW AT 12:34 A.M.
ASOS……………………25 WNW AT 12:31 A.M.
DAVIS…………………..33 WNW AT 12:43 A.M. RMY 21
FASTEST MILE FOR YESTERDAY…………………25 WNW AT 12:40 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………24 WNW AT 12:31 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..22 WNW AT 12:31 A.M.
AVERAGE WIND SPEED AND DIRECTION…………..10.9 W
ASOS…………………..10.8
DAVIS…………………..9.7 W [265 Deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00 DEPARTURE……-0.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….3.11 DEPARTURE……+1.48
ASOS…………..3.15
TOTAL PRECIPITATION FOR THE YEAR………..6.88 DEPARTURE……+0.90
ASOS…………..7.09
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………0.00 DEPARTURE…….-0.5
TOTAL SNOWFALL FOR THE MONTH……………21.3 DEPARTURE……+15.4
TOTAL SNOWFALL FOR THE SEASON…………..36.9 DEPARTURE…….-2.1
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/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
2/1 64/40/52/+26/0.00/0.0/…/.. 36 WNW AERO 37 W RMY 34
2/2 48/31/40/+14/0.00/0.0/…/.. 23 NW AERO 23 WNW RMY N/A
2/3 55/34/45/+19/0.80/0.0/000/00 55 SSE AERO 58 SSE RMY 53
2/4 55/39/47/+21/…./0.0/000/00 37 W AERO 36 W RMY 35
2/5 39/19/29/+3/…./12.5/000/00 37 NNW AERO 39 NNW RMY 35
2/6 35/17/26/0/0.00/0.0/…/.. 25 SSW AERO 24 SSW RMY 23
2/7 43/26/35/+8/0.00/0.0/…/.. 35 ENE AERO 35 ENE RMY N/A
2/8 36/16/26/-1/…./…/000/00 53 NE AERO 55 NE RMY 53
2/9 26/17/22/-5/…./…/000/00 21 N AERO 22 N RMY N/A
2/10 33/21/27/+0/0.01/0.0/…/.. 23 W AERO 23 W RMY 21
2/11 26/7/17/-10/T/T/…/.. 39 W AERO 47 W RMY 42
2/12 23/4/13/-14/0.00/0.0/…/.. 31 WNW AERO 38 WNW RMY 21
2/13 morning low temp. since midnight 13F; normal now 18F
DAILY RECORDS FOR FEBRUARY 2016
-NONE SO FAR-
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 13
HIGH 64F IN 1951
LOW -10F IN 1967
PRECIP 2.80 INCHES IN 2008
SNOWFALL 13.5 INCHES IN 1894
PEAK GUST 60 MPH SE IN 1972
RECORDS FOR FEBRUARY 14
HIGH 56F IN 1949
LOW -8F IN 1979
PRECIP 2.09 INCHES IN 2007
SNOWFALL 11.0 INCHES IN 1914
PEAK GUST 83 MPH SSW IN 2000
TODAY’S REPORT PREPARED BY: Robert Millette
