Sunday, February 16, 2014

BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA

DAILY DISCUSSION AND CLIMATE SUMMARY
SUNDAY, FEBRUARY 16, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

7.6 INCHES OF NEW AND DRIFTED SNOW PILES ON CREATING
A DEPTH OF 16 INCHES OF SNOW ON THE GROUND BY 7:00 AM.

Sunday morning on Great Blue Hill began with nearly cloudless
skies and fresh powdery snow on the ground after last evening’s
quick and powerful coastal storm. With last month having made
the top ten snowiest January’s on record here at Blue Hill,
we are already at 27.9 inches of snow so far for the month
of February and 36.2 inches above normal so far in our
snowfall season.

Temperatures have stayed suppressed below freezing today
with a brisk wind varying between W-NW. Visibility has remained
clear and greater than 50 miles since sunrise with a thin veil
of cirrus/cirrostratus covering most of the sky by 1:00 PM.

Preliminary Storm Statistics, 2/15-2/16:
Total Snow: 7.6 inches
Total Liquid: 0.71 inches
Peak Gust: 45 mph NW

Today’s Observations:

7 A.M.
Weather: Clear, few cirrostratus distant SW and NNE-ESE
Temperature: 18F; Dew Point: 11F; Wind: WNW at 14G22 kts,
Peak Wind: 26 kts WNW @ 06:13 AM
Sea-level pressure: 29.69 ins. Hg, rising then more quickly
Visibility: 50 miles
6-hr min temp: 18F
6-hr max temp: 27F
24-hr snowfall: 7.6 inches
24-hr precip: 0.71 inches
Snow depth: 16 inches
BHO SA 1155 CLR 50 054/18/11/2914G22/969/ FEW CS DSNT SW AND
NNE-ESE NEW SNW PST 24 HRS 7.6 INS PK WND 3026/13/
8/005 4/016 53038 ASOS 60001 70070 MANUAL 70071 10027 20018

10 A.M.
Weather: Broken cirrostratus, few cumulus distant NW-ENE
Temperature: 24F Dew Point: 15F; Wind: WNW at 18G23 kts,
Peak Wind: 27 kts WNW @ 09:44 AM
Sea-level pressure: 29.74 ins. Hg, rising, then more slowly
Visibility: 60 miles
BHO SA 1455 E250 BKN 60 072/24/15/2918G23/974/
FEW CU DSNT NW-ENE PK WND 2927/44/ 8/106 51018

1 P.M.
Weather: Broken cirrostratus, increasing and becoming more
dense
Temperature: 27F; Dew Point: 11F; Wind: W at 16G23 kts
Peak Wind: 26 kts W @ 12:41 PM
Sea-level pressure: 29.77 ins. Hg, increasing, then steady
Visibility: 60 miles
6-hr max. temp: 28F
6-hr min. temp: 17F
BHO SA 1755 E250 BKN 60 080/27/11/2816G23/977/
PK WND 2826/41/ 8/006 51008 10028 20017

WEATHER SUMMARY FOR SATURDAY, FEBRUARY 15, 2014

TEMPERATURE (DEGREES F)
MAX…..34    NORMAL…..37
MIN…..27    NORMAL…..19
MEAN….31    NORMAL…..28

DEPARTURE FROM 30-YEAR NORMAL…………………….+3
TOTAL DEPARTURE FOR THE MONTH……………………-15 [-1.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..34  DEPARTURE……….-3
TOTAL HEATING UNITS FOR THE MONTH………….588  DEPARTURE………+14
TOTAL HEATING UNITS FOR THE SEASON………..4105  DEPARTURE……..+/-0
TOTAL HEATING UNITS LAST SEASON TO DATE……3686  DIFFERENCE…….+419

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………35  NW   AT   11:21 P.M. *
AERO…………………..35  NW   AT   11:20 P.M.
ASOS…………………..36  NNW  AT   11:21 P.M.
DAVIS………………….32  NW   AT   11:58 P.M. RMY 48
FASTEST MILE FOR YESTERDAY………………..25  NW   AT   11:49 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..24  NNW  AT   11:46 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….21  NW   AT   11:22 P.M.
AVERAGE WIND SPEED AND DIRECTION………….10.7 W
ASOS………………….10.8
DAVIS…………………9.3 NNW [338 deg.] * last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.71  DEPARTURE………….+0.56
ASOS…………..0.70
TOTAL PRECIPITATION FOR THE MONTH……….4.47  DEPARTURE………….+2.40
ASOS…………..4.56
TOTAL PRECIPITATION FOR THE YEAR………..9.09  DEPARTURE………….+2.67
ASOS…………..9.47

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….7.6  DEPARTURE…………..+7.1
TOTAL SNOWFALL FOR THE MONTH……………27.9  DEPARTURE………….+20.5
TOTAL SNOWFALL FOR THE SEASON…………..76.7  DEPARTURE………….+36.2

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/…/..          25 NNW AERO 23 MPH NW  RMY 21
2/13 33/19/26/-2/…./…/000/00          46 NE  AERO 51 MPH NE  RMY 51
2/14 34/27/31/+3/…./…/…/..          48 W   AERO 51 MPH WNW RMY 49 **
2/15 34/27/31/+3/…./…/…/..          35 NW  AERO 35 MPH NW  RMY 48

2/16 morning low temp: 18F; the normal low is now 19F

** Corrections made to daily report

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 16
HIGH 62F IN 1954
LOW -16F IN 1943
PRECIP 1.91 INCHES IN 1958
SNOWFALL 18.6 INCHES IN 1958
PEAK GUST 78 MPH W IN 1967

RECORDS FOR FEBRUARY 17
HIGH 61F IN 1981
LOW -16F IN 1896
PRECIP 1.86 INCHES IN 2003
SNOWFALL 20.0 INCHES IN 2003
PEAK GUST 72 MPH NW IN 1968

TODAY’S REPORT PREPARED BY: Brian Fitzgerald