Friday, October 17, 2014
BLUE HILL METEOROLOGICAL OBSERVATORY
MILTON, MASSACHUSETTS
ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA
DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY, OCTOBER 17, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME
UNSEASONABLY WARM AND HUMID WEATHER OF YESTERDAY
CONTINUED INTO THIS MORNING WITH HEAVY FOG EARLY TODAY
RAINFALL WAS SHOWERY AND BRIEFLY MODERATE TO HEAVY YESTERDAY
THE RAINFALL TOTAL WAS SLIGHTLY OVER A HALF INCH
The unseasonably warm and very humid flow of increasingly
gusty south winds produced peak speeds up to 41 MPH (RM Young)
around 3 P.M. yesterday as the heavy showers moved through.
Although the rain included some downpours the total was not
unusually high with just 0.59 inch. The greatest amount in any
clock hour was 0.24 inch ending at 4 P.M. EDT.
Temperatures cooled only slowly overnight into this morning
with the minimum of 58 degrees running 16 degrees warmer than
normal for the date.
Today’s Observations:
7 A.M.
Weather: Obscurement with heavy fog
Temperature: 58F; Dew Point: 58F; Wind: SSW at 8 kts
Sea-level pressure: 29.65 ins. Hg, rising then more quickly
Visibility: 0 mile, except variable zero to 1/16 mile
6-hr max temp: 59F
6-hr min temp: 58F
24-hr precip: 0.59 inch
BHO SA 1155 W2 X0VF 042/58/58/2108/965/ VSBY 0V1/16/
8///// 53009 ASOS 70057 MANUAL 70059 10059 20058
10 A.M.
Weather: Scattered stratocumulus, few moderate cumuloform tops
Temperature: 63F; Dew Point: 58F; Wind: WSW at 8 kts,
Sea-level pressure: 29.67 ins. Hg, rising then falling slightly
Visibility: 20 miles, hazy
BHO SA 1455 11 SCT 20 047/63/58/2408/967/ SC FEW MDT CUFRM TOPS
HAZY/ 8/500 50005
1 P.M.
Weather: Scattered cumulus, few moderate cumulus
Temperature: 71F; Dew Point: 52F; Wind: SW at 14G22 kts,
Sea-level pressure: 29.65 ins. Hg, falling, then more slowly
Visibility: 40 miles, except 45 miles WNW
6-hr max temp: 71F
6-hr min temp: 58F
BHO SA 1755 40 SCT 40 041/71/52/2214G22/965/ FEW MDT CU
DSNT HZ VSBY WNW 45/ 8/200 58006 10071 20058
WEATHER SUMMARY FOR THURSDAY, OCTOBER 16, 2014
TEMPERATURE (DEGREES F)
MAX…..70 NORMAL…..60
MIN…..60 NORMAL…..43
MEAN….65 NORMAL…..51
DEPARTURE FROM 30-YEAR NORMAL……………………+14
TOTAL DEPARTURE FOR THE MONTH……………………+42 [+2.4 DEGREES/DAY]
HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY……………0 DEPARTURE……….-14
TOTAL HEATING UNITS FOR THE MONTH………….138 DEPARTURE……….-40
TOTAL HEATING UNITS FOR THE SEASON…………239 DEPARTURE……….-81
TOTAL HEATING UNITS LAST SEASON TO DATE…….249 DIFFERENCE………-10
PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………37 S AT 2:27 P.M.
ASOS…………………..41 S AT 2:27 P.M.
DAVIS………………….39 S AT 2:28 P.M. RMY 41
FASTEST MILE FOR YESTERDAY………………..27 S AT 2:27 P.M. *
MAXIMUM 2-MINUTE ASOS AVERAGE……………..28 S AT 2:25 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….27 S AT 2:26 P.M.
AVERAGE WIND SPEED AND DIRECTION………….16.1 SSE
ASOS………………….15.0
DAVIS…………………14.7 SSE (160 degrees)
* Last of several occurrences
PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.59 DEPARTURE……..+0.44
ASOS…………..0.57
TOTAL PRECIPITATION FOR THE MONTH……….3.26 DEPARTURE……..+0.89
ASOS…………..2.24
TOTAL PRECIPITATION FOR THE YEAR……….34.85 DEPARTURE……..-6.60
ASOS………….35.04
PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 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
10/1 56/55/56/-1/1.63/000/00 33 NE RMY 36
10/2 55/47/51/-6/0.29/000/00 30 NE RMY N/A
10/3 54/46/50/-6/0.05/000/00 20 NE RMY 20
10/4 63/52/58/+2/0.30/000/00 30 SE RMY 32
10/5 60/45/53/-3/0.00/658/95 26 W RMY 28
10/6 66/42/54/-1/0.00/669/97 25 SSE RMY N/A
10/7 72/54/63/+8/0.01/281/38 43 S RMY 49
10/8 72/53/63/+9/0.01/562/82 40 S RMY N/A
10/9 64/48/56/+2/0.00/648/95 35 W RMY 39
10/10 63/43/53/-1/0.00/489/72 23 W RMY N/A
10/11 50/43/47/-6/0.35/…/.. 15 N RMY N/A
10/12 60/40/50/-3/0.00/…/.. 20 NW RMY N/A
10/13 61/45/53/+0/0.00/…/.. 23 S RMY 25
10/14 75/58/67/+15/0.00/…/.. 29 S RMY 31
10/15 79/62/71/+18/0.02/…/.. 32 SSW RMY 36
10/16 70/60/65/+14/0.60/000/00 37 S RMY 41
10/17 morning low temp: 58F since midnight; normal low now 42F
DAILY RECORDS FOR OCTOBER 2014:
10/1 – A NEW RECORD DAILY PRECIPITATION OF 1.63 INCHES;
surpasses the previous record of 1.44 ins. in 1984
DAILY EXTREMES
Temperature and precipitation records back to 1885, and
wind records back to 1940 (e = estimated):
RECORDS FOR OCTOBER 17
HIGH 86F IN 1947
LOW 25F IN 1886
PRECIP 1.87 INCHES IN 1989
SNOWFALL TRACE IN 1970
PEAK GUST 55 MPH NE IN 1964
RECORDS FOR OCTOBER 18
HIGH 82F IN 1908
LOW 26F IN 1939
PRECIP 2.79 INCHES IN 1975
SNOWFALL 3.0 INCHES IN 2009
PEAK GUST 66 MPH S IN 1967
TODAY’S REPORT PREPARED BY: Robert Skilling
