Friday, February 28, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, FEBRUARY 28, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
SNOW SQUALLS ARRIVE AROUND 2:15 P.M. YESTERDAY
DUMPING A QUICK 1.0 INCH OF SNOW, BRINGING WITH
IT MORE ARCTIC AIR
Yesterday afternoon and evening featured snow squalls
moving through the region adding 1.0 inch of new snow with
a liquid equivalent of 0.07 inches of water. Visibility during
the most intense part of the squall was down to 1/16 of a mile
or less for a short time.
With the intrusion of more Arctic air from the NW temperatures
slipped to 4.7F for a morning low before rebounding to a maximum
of 20.9F at the 1:00 PM observation.
With high pressure and cold temperatures, visibility has stayed
above 60 miles throughout the day with several hours of completely
clear skies until the 1:00 PM observation. Some cirrus/cirrostratus
are now slowly making their way from W-E.
Today’s Observations:
7 A.M.
Weather: Clear, few cumulus distant offshore E-ESE
Temperature: 5F; Dew Point: -4F; Wind: WNW at 12G20 kts
Sea-level pressure: 30.16 ins. Hg, rising, then more slowly
Visibility: 60 miles
6-hr min temp: 5F
6-hr max temp: 10F
New Snow pst 24 hrs: 1.0
Liquid Water Equivalent (LWE): 0.07
Snow depth: 7 inches
BHO SA 1155 CLR 60 215/5/-4/2912G20/016/ FEW CU DSNT OFFSHR E-ESE
NEW SNW PST 24 HRS 1.0 IN/ 8/100 4/007 51044 ASOS 70006
MANUAL 70007 10010 20005
10 A.M.
Weather: Sky Clear
Temperature: 15F Dew Point: 0F; Wind: NW at 14G21 kts,
Sea-level pressure: 30.25 ins. Hg, rising then steady
Visibility: 70 miles
BHO SA 1455 CLR 70 245/15/0/3214G21/025/ SKC/ 8/000 51030
1 P.M.
Weather: Clear, few cirrus distant W
Temperature: 20F; Dew Point: -8F; Wind: WNW at 10G16 kts,
Sea-level pressure: 30.27 ins. Hg, increasing, then decreasing,
but higher still
Visibility: 70 miles
6-hr max. temp: 21F
6-hr min. temp: 5F
BHO SA 1755 CLR 70 252/20/-8/2910G16/027/ FEW CI DSNT W/
8/001 50007 10021 20005
WEATHER SUMMARY FOR THURSDAY, FEBRUARY 27, 2014
TEMPERATURE (DEGREES F)
MAX…..27 NORMAL…..40
MIN……7 NORMAL…..22
MEAN….17 NORMAL…..31
DEPARTURE FROM 30-YEAR NORMAL……………………-14
TOTAL DEPARTURE FOR THE MONTH……………………-22 [-1.0 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..48 DEPARTURE………+14
TOTAL HEATING UNITS FOR THE MONTH…………1023 DEPARTURE………+20
TOTAL HEATING UNITS FOR THE SEASON………..4540 DEPARTURE……….+7
TOTAL HEATING UNITS LAST SEASON TO DATE……4093 DIFFERENCE…….+447
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………44 WNW AT 11:04 P.M.
AERO…………………..44 WNW AT 10:53 P.M.
ASOS…………………..46 WNW AT 10:55 P.M.
DAVIS………………….42 WNW AT 10:55 P.M. RMY 45
FASTEST MILE FOR YESTERDAY………………..32 WNW AT 10:13 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..32 WNW AT 11:05 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….30 W AT 11:05 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..11.3 WNW
ASOS…………………..11.2
DAVIS………………….10.2 W [265 deg.]
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.07 DEPARTURE…………..-0.09
ASOS…………..0.06
TOTAL PRECIPITATION FOR THE MONTH……….5.46 DEPARTURE………….+1.56
ASOS…………..5.61
TOTAL PRECIPITATION FOR THE YEAR………..10.08 DEPARTURE………….+1.83
ASOS…………..10.52
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….1.0 DEPARTURE…………..+0.5
TOTAL SNOWFALL FOR THE MONTH……………33.0 DEPARTURE………….+19.6
TOTAL SNOWFALL FOR THE SEASON…………..81.8 DEPARTURE………….+35.3
PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST
AERO: Aerovane wind recording system gust
RMY: RMY = R.M. Young wind gust recording system added 8/9/2011
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
2/1 45/30/38/+12/0.00/0.0/402/67 24 S AERO 23 MPH S RMY 25
2/2 53/33/43/+17/0.00/0.0/181/30 22 S AERO 21 MPH WNW RMY 21
2/3 36/22/29/+3/0.32/2.8/000/00 22 NNE AERO 18 MPH NNE RMY 21
2/4 33/18/26/0/0.00/0.0/377/62 20 NW AERO 16 MPH NW RMY 17
2/5 31/21/26/0/1.32/10.7/000/00 32 ENE AERO 30 MPH ENE RMY 30
2/6 26/15/21/-5/0.02/0.4/398/65 22 WNW AERO 21 MPH WNW RMY 22
2/7 29/13/21/-6/0.00/0.0/615/100 25 W AERO 23 MPH W RMY 27
2/8 28/12/20/-7/0.00/0.0/612/99 24 W AERO 23 MPH W RMY 23
2/9 28/19/24/-3/0.05/1.0/112/18 21 N AERO 17 MPH N RMY 19
2/10 27/14/21/-6/0.00/0.0/617/99 28 NW AERO 28 MPH NW RMY 30
2/11 24/8/16/-11/0.00/0.0/625/100 22 WNW AERO 20 MPH WNW RMY 25
2/12 25/2/14/-13/0.00/0.0/509/81 25 NNW AERO 23 MPH NW RMY 21
2/13 33/19/26/-2/1.67/5.0/000/00 46 NE AERO 51 MPH NE RMY 51
2/14 34/27/31/+3/0.39/0.4/348/55 48 W AERO 51 MPH WNW RMY 49
2/15 34/27/31/+3/0.68/7.2/025/04 35 NW AERO 35 MPH NW RMY 48
2/16 30/18/24/-4/0.03/0.4/549/86 45 NW AERO 46 MPH NW RMY N/A
2/17 27/9/18/-10/0.00/0.0/635/99 38 NW AERO 38 MPH NW RMY 41
2/18 32/12/22/-7/0.32/4.0/000/00 27 ESE AERO 25 MPH WNW RMY 28
2/19 35/20/28/-1/0.25/0.1/…/.. 21 W AERO 20 MPH ESE RMY 26
2/20 48/30/39/+10/…./…/…/.. 26 WNW AERO 28 MPH W RMY 26
2/21 49/33/41/+12/…./0.0/…/.. 32 S AERO 35 MPH S RMY 35
2/22 50/33/42/+13/0.00/0.0/…/.. 38 SSW AERO 39 MPH SSW RMY 42
2/23 50/36/43/+13/0.00/0.0/…/.. 25 SW AERO 27 MPH SW RMY 29
2/24 40/20/30/0/0.00/0.0/…/.. 48 WNW AERO 50 MPH WNW RMY 49
2/25 27/16/22/-8/0.00/0.0/…/.. 37 W AERO 38 MPH W RMY 35
2/26 29/9/19/-11/T/T/…/.. 30 WSW AERO 30 MPH WSW RMY 31
2/27 27/7/17/-14/0.07/1.0/…/.. 44 WNW AERO 44 MPH WNW RMY 45
2/28 morning low temp: 5F; the normal low is now 22F
DAILY RECORDS FOR FEBRUARY 2014
None so far.
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR FEBRUARY 28
HIGH 62F IN 1976
LOW -2F IN 1907,1934
PRECIP 1.79 INCHES IN 1958
SNOWFALL 8.5 INCHES IN 2005
PEAK GUST 88e MPH SSW IN 1943
RECORDS FOR MARCH 1
HIGH 62 IN 1972
LOW -3 IN 1886
PRECIP 1.65 INS. IN 1900
SNOWFALL 9.4 INS. IN 1949
PEAK GUST 78 WSW IN 1966
TODAY’S REPORT PREPARED BY: Brian Fitzgerald
