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BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, FEBRUARY 13, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
SLIDING PRESSURE, SNOW, RISING TEMPERATURES AND EASTERLY
WINDS DOMINATE THE START OF A POTENT NOR’EASTER.
Cirrostratus crept into the region during the day yesterday
ahead of a low pressure system that wreaked havoc in the
South and Mid-Atlantic. Light snow began today just after
6:00 AM becoming moderate to heavy around 12:20 PM. Visibility
at 7:00 AM was 5 miles, down to 3/4 of a mile by 10:00 AM.
Sea Level Pressure during today’s observations:
7:00 AM: 30.23
10:00 AM: 30.09
1:00 PM: 29.84
Peak Gust as of 1:00 PM: 37 MPH ENE @ 12:27 PM
At 7:00 AM only 0.1 inch of snow had fallen, with a liquid
equivalent of a trace of water. By 1:00 PM 2.5 inches of snow
had fallen with a liquid equivalent of 0.37 inches of water.
For preliminary storm totals
stay tuned to tomorrow’s discussion and climate summary.
Today’s Observations:
7 A.M.
Weather: Light snow and fog, overcast nimbostratus
Temperature: 27F; Dew Point: 26F; Wind: E at 13 kts,
Sea-level pressure: 30.23 ins. Hg, falling, then more quickly
Visibility: 5 miles, reduced by snow and fog
6-hr min temp: 20F
6-hr snowfall: 0.1 inches
6-hr precip: Trace
Snow depth: 9 inches
BHO SA 1155 –X E10 OVC 5S-F 237/27/26/0813/023/
NEW SNW PST 24 HRS 0.1 IN/ 8/020 4/009 58027
ASOS 60001 70001 MANUAL 6000/ 10027 20020
10 A.M.
Weather: Light snow and fog
Temperature: 31F Dew Point: 31F; Wind: E at 15G24 kts,
Sea-level pressure: 30.09 ins. Hg, falling, then more quickly
Visibility: 3/4 of a mile, reduced by light snow and fog
3-hr snowfall: 0.3 inches
BHO SA 1455 W6 OVC 3/4S-F 191/31/31/0915G24/009/
NEW SNW PST 3 HRS 0.3 IN/ 8//// 58046 ASOS 60006
1 P.M.
Weather: Heavy snow and fog
Temperature: 32F; Dew Point: 32F; Wind: ENE at 23G30 kts,
Peak Wind: 32 kts ENE @ 12:27 PM
Sea-level pressure: 29.84 ins. Hg, falling steadily
Visibility: 1/4 of a mile, reduced by heavy snow and fog
6-hr max. temp: 33F
6-hr min. temp: 27F
6-hr snowfall: 2.5 inches
6-hr precip: 0.37 inches
Snow: Increasing Rapidly at a rate of 2 inches per hour,
increasing total snow on the ground to 12 inches.
BHO SA 1755 W4 OVC 1/4S+F 108/32/32/0723G30/984/
SNINCR 2/12 NEW SNW PST 6 HRS 2.5 INS STORM TOTAL 2.6 INS
PK WND 0732/27/ 57083 ASOS 60035 MANUAL 60037 10033 20027
WEATHER SUMMARY FOR WEDNESDAY, FEBRUARY 12, 2014
TEMPERATURE (DEGREES F)
MAX…..25 NORMAL…..36
MIN……2 NORMAL…..19
MEAN….14 NORMAL…..27
DEPARTURE FROM 30-YEAR NORMAL……………………-13
TOTAL DEPARTURE FOR THE MONTH……………………-19 [-1.8 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..51 DEPARTURE………+13
TOTAL HEATING UNITS FOR THE MONTH………….481 DEPARTURE………+19
TOTAL HEATING UNITS FOR THE SEASON………..3998 DEPARTURE……….+5
TOTAL HEATING UNITS LAST SEASON TO DATE……3601 DIFFERENCE…….+397
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………25 NNW AT 12:09 A.M.
AERO…………………..23 NW AT 1:22 A.M. *
ASOS…………………..25 NNW AT 12:10 A.M.
DAVIS………………….23 NW AT 12:10 A.M. RMY 21
FASTEST MILE FOR YESTERDAY………………..17 NW AT 1:26 A.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..18 NW AT 1:21 A.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….16 NW AT 1:26 A.M.
AVERAGE WIND SPEED AND DIRECTION………….8.0 NW
ASOS………………….8.0
DAVIS………………….7.1 N [357 deg.]
* last in a series…
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….TRACE DEPARTURE…………-0.14
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….1.71 DEPARTURE………….+0.08
ASOS…………..1.79
TOTAL PRECIPITATION FOR THE YEAR………..6.33 DEPARTURE………….+0.35
ASOS…………..6.70
SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.1 DEPARTURE…………..-0.4
TOTAL SNOWFALL FOR THE MONTH……………15.0 DEPARTURE…………..+9.1
TOTAL SNOWFALL FOR THE SEASON…………..63.8 DEPARTURE………….+24.8
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/…/.. 20 NW AERO 16 MPH NW RMY 17
2/5 31/21/26/0/…./…/000/00 32 ENE AERO 30 MPH ENE RMY 30
2/6 26/15/21/-5/…./…/…/.. 22 WNW AERO 21 MPH WNW RMY 22
2/7 29/13/21/-6/0.00/0.0/…/.. 25 W AERO 23 MPH W RMY 27
2/8 28/12/20/-7/0.00/0.0/…/.. 24 W AERO 23 MPH W RMY 23
2/9 28/19/24/-3/0.05/1.0/…/.. 21 N AERO 17 MPH N RMY 19
2/10 27/14/21/-6/0.00/0.0/…/.. 28 NW AERO 28 MPH NW RMY 30
2/11 24/8/16/-11/0.00/0.0/…/.. 22 WNW AERO 20 MPH WNW RMY 25
2/12 25/2/14/-13/0.00/0.0/…/.. 25 NNW AERO 23 MPH NW RMY 21
2/13 morning low temp: 17F; the normal low is now 19F
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 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: Brian Fitzgerald
