Tuesday, October 14, 2014

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

DAILY DISCUSSION AND CLIMATE SUMMARY
TUESDAY, OCTOBER 14, 2014
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDS AND SUN MIX AFTER WARM AND HUMID OVERNIGHT

Yesterday’s steady climb from a morning low of 45F
to a daytime maximum of 61F held in place overnight
as the flow continued from the South. Lowering clouds
and increased humidity met the new day today with
increasing breaks of sun.

The 24-hour maximum from 7:00 AM this morning through
7:00 AM yesterday was 62F which was recorded at this morning’s
7:00 AM EST observation. The mercury continued to climb
toward unseasonable warmth through the morning,
hitting another maximum of 75F through the 1:00 PM EST
observation. Today’s daily record maximum of 79F, set it
2000, does not appear to be in jeopardy for the moment.

Today’s Observations:

7 A.M.
Weather: Broken stratocumulus, broken altocumulus
Temperature: 62F; Dew Point: 60F; Wind: S at 12 kts
Sea-level pressure: 30.27 ins. Hg, rising slightly
Visibility: 20 miles, except 15 miles SE and WNW-NNE, light
fog obscuring in all directions
6-hr max temp: 62F
6-hr min temp: 58F
24-hr precip: 0.00 inches
BHO SA 1155 E11 BKN 80 BKN 20 249/62/60/1812/027/
LGT FG ALQDS VSBY SE AND WNW-NNE 15 MI/ 8/540 53003 10062 20058

1 P.M.
Weather: Broken stratocumulus, broken altocumulus
Temperature: 74F; Dew Point: 66F; Wind: SSW at 12G18 kts,
Sea-level pressure: 30.22 ins. Hg, falling, then more slowly
Visibility: 50 miles, light distant haze
6-hr max temp: 75F
6-hr min temp: 62F
6-hr precip: 0.00 inches
BHO SA 1755 E39 BKN 60 BKN 50 234/74/66/2012G18/022/
LGT DSNT HZ ALQDS/ 8/540 56015 10075 20062

WEATHER SUMMARY FOR MONDAY, OCTOBER 13, 2014

TEMPERATURE (DEGREES F)
MAX…..61    NORMAL…..61
MIN…..45    NORMAL…..44
MEAN….53    NORMAL…..53

DEPARTURE FROM 30-YEAR NORMAL…………………….+0
TOTAL DEPARTURE FOR THE MONTH…………………….-6 [-0.3 DEGREE/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..12  DEPARTURE………..-1
TOTAL HEATING UNITS FOR THE MONTH………….138  DEPARTURE………..+0
TOTAL HEATING UNITS FOR THE SEASON…………239  DEPARTURE……….-41
TOTAL HEATING UNITS LAST SEASON TO DATE…….220  DIFFERENCE………+19

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………23 S   AT  3:28 P.M.
ASOS…………………..24 S   AT  3:55 P.M.
DAVIS………………….22 SSW AT 12:14 P.M. RMY 25
FASTEST MILE FOR YESTERDAY………………..17 SSW AT 12:13 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..17 SSW AT 11:56 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….17 SSW AT 12:14 9.M.
AVERAGE WIND SPEED AND DIRECTION………….11.6 SSW
ASOS………………….11.8
DAVIS…………………10.5 SSW (208 degrees)
* Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……..-0.15
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….2.64  DEPARTURE……..+0.71
ASOS…………..2.64
TOTAL PRECIPITATION FOR THE YEAR……….34.23  DEPARTURE……..-6.78
ASOS………….34.44

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/…/..              26 W   RMY 28
10/6  66/42/54/-1/0.00/…/..              25 SSE RMY N/A
10/7  72/54/63/+8/0.01/…/..              43 S   RMY 49
10/8  72/53/63/+9/0.01/…/..              40 S   RMY N/A
10/9  64/48/56/+2/0.00/…/..              35 W   RMY 39
10/10 63/43/53/-1/0.00/…/..              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 morning low temp: 58F since midnight; normal low now 43F

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 14
HIGH 79F IN 2000
LOW 28F IN 1958
PRECIP 2.69 INCHES IN 1990
SNOWFALL 2.0 INCHES IN 1913
PEAK GUST 63e W IN 1976

RECORDS FOR OCTOBER 15
HIGH 83F IN 1897
LOW 29F IN 1887,1937
PRECIP 4.58 INCHES IN 2005
SNOWFALL TRACE IN 1961,1972
PEAK GUST 69 MPH W IN 2003

TODAY’S REPORT PREPARED BY: Brian Fitzgerald