Sunday, February 8, 2015
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 8, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME
SNOW ENDS THEN RESUMES OVERNIGHT, 6.4 INCHES
BY 1:00 PM EST
Snow that began yesterday morning, came to an end
late in the afternoon, before resuming once more
overnight. By the 7:00 PM EST observation 5.0 inches
had fallen in the previous 24 hours. Snow became
much lighter over much of the morning, adding another
0.6 inches by the 10:00 AM EST observation.
Temperatures have held steady since yesterday
afternoon in the 20s with occasionally thick
fog.
By the 1:00 PM EST observation an additional
0.8 inches of snow had fallen, totaling 6.4 inches
for a storm total so far. A maximum of 29F was read
at the 10:00 AM EST observation and had since
fallen to 26F by 1:00 PM. Winds had increased and
were routinely gusting into the 20 knot range,
allowing some snow to drift on the summit.
Today’s Observations:
7 A.M.
Weather: Light snow and fog
Temperature: 26F; Dew Point: 25F; Wind: NE at 10 kts
Sea-level pressure: 30.05 ins. Hg, steady, then rising
Visibility: 1/4 of a mile, except 1/2 mile SSW-E
6-hr max temp: 26F
6-hr min temp: 25F
24-hr precip: 0.32
24 hr snowfall: 5.0
Snow depth: 27 inches
BHO SA 1155 W2 X 1/4S-F 175/26/25/0410/005/
VSBY SSE-W 1/2 MI NEW SNW PST 24 HRS 5.0 INS/
8//// 4/027 51009 ASOS 60019 70030 MANUAL 70032 10026 20025
10 A.M.
Weather: Light snow, fog
Temperature: 29F; Dew Point: 28F; Wind: ENE at 13G19 kts
Sea-level pressure: 30.07 ins. Hg, rising slightly
Visibility: 1/2 of a mile, drifting snow
3-hr prcip: 0.05
3-hr snowfall: 0.6 inches
BHO SA 1455 W3 X 1/2S-F 182/29/28/0613G19/007/
DRFTG SNW ALQDS NEW SNW PST 3 HRS 0.6 INS/
8//// 50007 ASOS 60004
1 P.M.
Weather: Light snow, fog
Temperature: 26F; Dew Point: 25F; Wind: NNE at 13G21 kts
Sea-level pressure: 30.01 ins. falling, then rapidly
Visibility: 1/2 of a mile, drifting snow
6 Hr precip: 0.12 in
6 Hr Snowfall: 1.4 in
BHO SA 1755 W4 X 1/2S-F 162/26/25/0213G21/001/
DRFTG SNW ALQDS NEW SNW PST 6 HRS 1.4 HRS/
8//// 58020 ASOS 60011 MANUAL 60012 10029 20025
SUMMARY FOR SATURDAY, FEBRUARY 7, 2015
TEMPERATURE (DEGREES F)
MAX…..25 NORMAL…..35
MIN…..14 NORMAL…..18
MEAN….20 NORMAL…..27
DEPARTURE FROM 30-YEAR NORMAL……………………….-7
TOTAL DEPARTURE FOR THE MONTH………………………-62 [-9.1 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..45 DEPARTURE………..+6
TOTAL HEATING UNITS FOR THE MONTH………….334 DEPARTURE……….+62
TOTAL HEATING UNITS FOR THE SEASON………..3682 DEPARTURE………-121
TOTAL HEATING UNITS LAST SEASON TO DATE……3768 DIFFERENCE………-86
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………25 WSW AT 3:20 A.M.*
ASOS…………………..26 WSW AT 2:37 A.M.
DAVIS………………….26 WSW AT 2:36 A.M. RMY N/A
FASTEST MILE FOR YESTERDAY………………..18 WSW AT 2:37 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..20 W AT 3:24 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….19 WSW AT 3:24 P.M.
AVERAGE WIND SPEED AND DIRECTION…………11.3 WSW
ASOS…………………11.4
DAVIS………………..10.3 WSW [238 degrees]
* last of several occurrences…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.32 DEPARTURE…..+0.18
ASOS…………..0.30
TOTAL PRECIPITATION FOR THE MONTH……….2.00 DEPARTURE…..+1.05
ASOS…………..2.08
TOTAL PRECIPITATION FOR THE YEAR………..7.17 DEPARTURE…..+2.00
ASOS…………..7.54
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….5.0 DEPARTURE……+4.5
TOTAL SNOWFALL FOR THE MONTH……………25.0 DEPARTURE…..+21.5
TOTAL SNOWFALL FOR THE SEASON…………..78.9 DEPARTURE…..+42.3
PRELIMINARY CLIMATE SUMMARY FOR JANUARY 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
2/1 28/8/18/-8/0.00/0.0/…/.. 29 WNW RMY N/A
2/2 29/8/19/-7/1.53/16.5/000/00 44 NE RMY 46
2/3 21/0/11/-15/0.00/0.0/…/.. 31 NW RMY N/A
2/4 36/14/25/-1/0.00/0.0/…/.. 31 S RMY 33
2/5 34/4/19/-7/0.15/3.5/…/.. 38 NW RMY 39
2/6 19/-2/9/-17/0.00/0.0/…/.. 28 NW RMY 27
2/7 25/14/20/-7/…./…/…/.. 25 WSW RMY N/A
2/8 morning low temp: 25F since midnight, normal low is now 18
DAILY RECORDS FOR FEBRUARY 2015
-NEW DAILY RECORD SNOWFALL FOR 2 FEBRUARY 2015
SNOWFALL 16.5 INS. surpasses previous record:
5.5 ins. in 1916, 1934
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 8
HIGH 60F IN 1933
LOW -9F IN 1934
PRECIP 2.50 INS. IN 1945
SNOWFALL 16.1 INS. IN 2013
PEAK GUST 63e MPH NE IN 1945, 2013
RECORDS FOR FEBRUARY 9
HIGH 58F IN 1990
LOW -21F IN 1934 [LOWEST TEMPERATURE ON RECORD]
PRECIP 2.12 INS. IN 1969
SNOWFALL 13.0 INS. IN 1969
PEAK GUST 89 MPH NE IN 1969
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
