Tuesday, June 10, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, JUNE 10, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

FOG AND UNCOMFORTABLE DEW POINTS PREVAIL TODAY
AHEAD OF BACK-DOOR COLD FRONT…0.13 INCHES OF NEW RAIN OVERNIGHT

A steady shower brought 0.13 inches of new rain late last night
with some showers observed throughout the region.

Dew points this morning have been stuck solidly in the 60s with
thick fog finally dissipating by mid morning. Visibility at times
was obscured to 1/16 of a mile with vertical visibilities of 200
feet or less. Some spots of sun have been obscured by mid day with a
maximum temperature of 75F by the 1:00 PM EST observation.

Today’s Observations:

7 A.M.
Weather: Thick fog
Temperature: 64F; Dew Point: 63F; Wind: estimated SSW at 6 kts
Wind Speed: Light
Sea-level pressure: 29.98 ins. Hg, rising slightly
Visibility: 1/16 of a mile, obscured by thick fog
6-hr max temp: 64F
6-hr min temp: 61F
24-hr precip: 0.13 inches
BHO SA 1155 W2 X 1/16F 151/64/63/E2006/998/ WND LGT/
8//// 51001 ASOS 70013 MANUAL 70013 10064 20061

10 A.M.
Weather: Overcast stratus
Temperature: 69F; Dew Point: 66F; Wind: estimated S at 5 kts
Wind Speed: Light
Sea-level pressure: 29.96 ins. Hg, steady, then falling
Visibility: 15 miles, obscured by light fog and haze in all directions
BHO SA 1455 E9 OVC 15 146/69/66/E1905/996/ LGT FG AND HZ ALQDS
WND LGT/ 8/6// 58005

1 P.M.
Weather: Broken stratocumulus, broken altocumulus, broken cirrocumulus/
cirrus fibratus, few cumulus in all directions
Temperature: 75F; Dew Point: 66F; Wind: estimated WSW at 6 kts
Wind Speed: Light
Sea-level pressure: 29.96 ins. Hg, nearly steady
Visibility: 20 miles, light fog and haze in all directions
6-hr max temp: 75F
6-hr min temp: 64F
BHO SA 1755 E30 BKN 140 BKN 240 BKN 20 147/75/66/E2406/996/
FEW CU ALQDS LGT FG AND HZ ALQDS WND LGT/ 8/869 50001 10075 20064

WEATHER SUMMARY FOR MONDAY, JUNE 9, 2014

TEMPERATURE (DEGREES F)
MAX…..77    NORMAL…..73
MIN…..61    NORMAL…..55
MEAN….69    NORMAL…..64

DEPARTURE FROM 30-YEAR NORMAL……………………..+5
TOTAL DEPARTURE FOR THE MONTH…………………….+21 [+2.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0  DEPARTURE……….-3
TOTAL HEATING UNITS FOR THE MONTH…………..20  DEPARTURE………-17
TOTAL HEATING UNITS FOR THE SEASON………..6414  DEPARTURE………+74
TOTAL HEATING UNITS LAST SEASON TO DATE……5755  DIFFERENCE…. ..+659

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY…………..4   DEPARTURE……….+1
TOTAL COOLING UNITS FOR THE MONTH………….23   DEPARTURE……….+4
TOTAL COOLING UNITS FOR THE SEASON…………36   DEPARTURE……….-7
TOTAL COOLING UNITS LAST SEASON TO DATE…….60   DIFFERENCE……..-24

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………21  WSW AT   3:23 P.M.
ASOS…………………..23  SW  AT   3:24 P.M.
DAVIS………………….21  SSW AT   2:06 A.M. RMY 22
FASTEST MILE FOR YESTERDAY………………..17  SSW AT   6:28 P.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE……………..17  SSW AT   9:39 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….17  SSW AT   9:38 P.M.
AVERAGE WIND SPEED AND DIRECTION………….11.1 SW
ASOS………………….11.2
DAVIS…………………10.2  SW [227 deg] *…LAST OF SEVERAL OCCURRENCES

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.13  DEPARTURE……….-0.03
ASOS…………..0.13
TOTAL PRECIPITATION FOR THE MONTH……….1.15  DEPARTURE……….-0.34
ASOS…………..1.13
TOTAL PRECIPITATION FOR THE YEAR……….23.49  DEPARTURE……….-0.66
ASOS………….23.85

PRELIMINARY CLIMATE SUMMARY FOR JUNE 2014 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/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

6/1  72/47/60/-2/0.00/887/98              21 NNW RMY 21
6/2  81/52/67/+5//0.00/879/97             22 SSW RMY 23
6/3  81/57/69/+7/0.00/889/98              25 SSE RMY 28
6/4  64/52/58/-5/0.11/000/00              16 SE  RMY N/A
6/5  60/55/58/-5/0.91/000/00              21 NNW RMY 24
6/6  73/54/64/+1/0.00/…/..              22 WNW RMY 23
6/7  82/56/69/+5/0.00/…/..              21 W   RMY 22
6/8  84/63/74/+10/0.00/…/..             18 SW  RMY N/A
6/9  77/61/69/+5/…./…/..              21 WSW RMY 22

6/10  morning low temp: 61F; the normal low is now 56F

DAILY RECORDS FOR JUNE 2014
None so far.

DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):

RECORDS FOR JUNE 10
HIGH 98F IN 2008
LOW 42F IN 1913,1920
PRECIP 2.51 INCHES IN 1931
PEAK GUST 60e MPH NW IN 1941

RECORDS FOR JUNE 11
HIGH 92F IN 1973,1984,1997
LOW 40F IN 1972
PRECIP 2.66 INS 1922
PEAK GUST 43e MPH S IN 1945

TODAY’S REPORT PREPARED BY: Brian Fitzgerald