Friday, November 1, 2013

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

DAILY DISCUSSION AND CLIMATE SUMMARY
FRIDAY NOVEMBER 1, 2013
ALL TIMES ARE IN EASTERN STANDARD TIME

OCTOBER FINISHES 7TH DRIEST ON RECORD WITH 1.09 INCHES
STRONG TO GALE FORCE SOUTH TO SOUTH-SOUTHWEST WINDS TODAY
VERY WARM CONDITIONS FOR NOVEMBER 1st
RAINFALL IN VERY SMALL AMOUNTS ON OCTOBER 31

Only 0.05 inch of rainfall occurred on October 31 bringing
the monthly total to a 7th driest 1.09 inches and 3.60 below
the 30-year normal.  (See list below). Also October has finish 2.6
degrees above average. The full October report will be out soon.

Winds have been increasing overnight with rising temperatures
through the 60’s.  The peak gusts have reached 50 to 60 mph
from the SSW this morning and temperatures have risen from
61 degrees very early this morning to 67 degrees by 9 A.M. EDT.

Between the 11AM and Noon hour we received a windswept downpour that
gave us an estimated 0.10 inches of rain in a short period of time. Visibility
dropped to less then 1 mile and had sustained winds around 40 MPH. A unconfirmed
gust to about 65 mph occurred in the downpour.

BHO DRIEST OCTOBERS (INCHES, 1886-2013)
1)  0.22 IN 1924
2)  0.39 IN 1994
3)  0.50 IN 1946
4)  0.61 IN 1935
5)  0.63 IN 1897
6)  0.79 IN 2001
7)  1.09 IN 2013
8)  1.15 IN 1918
9)  1.25 IN 1940
10) 1.31 IN 1967

Today’s Observations:

7 A.M.
Weather: Scattered stratocumulus, stratus fractus, scattered altocumulus,
broken altocumulus of chaotic sky, overcast altocumulus/altostratus
Temperature: 66F; Dew Point: 61F; Wind: SSW at 28G43 kts.
Sea-level pressure: 29.59 ins. Hg, decreasing, then decreasing more slowly
Visibility: 12 miles, thin fog
6-hr min temp: 62F
24-hr precip: 0.05 inch
BHO SA 1155 20 SCT 70 SCT E100 BKN 160 OVC 12 019/66/61/2028G43/959/
AC CHAOTIC ALQDS BRGHT SPTS IOVC THN F ALQDS PK WND 1943/53/
8/59/ 56025 MANUAL 6000/ MANUAL 70005 ASOS 70004 10066 20062

10 A.M.
Weather: Light rain shower, scattered stratocumulus, stratus fractus,
overcast altocumulus
Temperature: 67F; Dew Point: 62F; Wind: S at 26G38 kts,
Sea-level pressure: 29.52 ins. Hg, decreasing rapidly
Visibility: 12 miles
BHO SA 1455 E22 BKN 100 OVC 12 RW- 997/67/62/1926G38/952/
HIER CLD VSB BRGHT SPTS IOVC PK WND 2048/27/ PCPN VRY LGT/
8/57/ 58022 MANUAL 6000/

1 P.M.
Weather: Scattered stratocumlus and stratus fractus, overcast altocumulus,
breaks in overcast distant W-NW-N, light rain shower S-SW
Temperature: 62F; Dew Point: 55F; Wind: SSW at 24G32  kts,
Peak Wind: SSW at 32 kts
Sea-level pressure: 29.32 ins. Hg, decreasing more rapidly
Visibility: 60 miles
6-hr max temp: 69F
6-hr precip: 0.10 inches
BHO SA 1755 E50 SCT 80 OVC 60 998/62/55/2024G32/932/
BINOVC W-NW-N RW- S-SW PK WND 2232/53 58004 ASOS 60010
MANUAL 60010 10069 20066

WEATHER SUMMARY FOR THURSDAY, OCTOBER 31, 2013

TEMPERATURE (DEGREES F)
MAX…..61    NORMAL…..55
MIN…..43    NORMAL…..38
MEAN….52    NORMAL…..47

DEPARTURE FROM 30-YEAR NORMAL…………………+5
TOTAL DEPARTURE FOR THE MONTH………………..+88 [+2.6 DEGREES/DAY]

COOLING DEGREE DAYS (SEASON JAN TO DEC)
TOTAL COOLING UNITS FOR YESTERDAY……………0  DEPARTURE……….0
TOTAL COOLING UNITS FOR THE MONTH……………5  DEPARTURE……….0
TOTAL COOLING UNITS FOR THE SEASON…………701  DEPARTURE……..+99
TOTAL COOLING UNITS LAST SEASON TO DATE…….767  DIFFERENCE…….-66

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..13  DEPARTURE………-5
TOTAL HEATING UNITS FOR THE MONTH………….331  DEPARTURE……..-90
TOTAL HEATING UNITS FOR THE SEASON…………477  DEPARTURE……..-86
TOTAL HEATING UNITS LAST SEASON TO DATE…….408  DIFFERENCE…….+69

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY………………37 SSW AT 06:01 P.M.
AERO…………………..N/A
ASOS…………………..40 S   AT 06:01 P.M.
DAVIS………………….38 S   AT 06:00 P.M.  RMY N/A
FASTEST MILE FOR YESTERDAY………………..31 S   AT 11:50 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE……………..29 S   AT 06:22 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE…………….28 S   AT 06:01 P.M.
AVERAGE WIND SPEED AND DIRECTION………….15.9 S
ASOS………………….15.1
DAVIS…………………14.1 S [190 degrees] * last of several occurrences…

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.05   DEPARTURE………….-0.11
ASOS…………..0.04
TOTAL PRECIPITATION FOR OCTOBER…………1.09   DEPARTURE………….-3.60
ASOS…………..1.06
TOTAL PRECIPITATION FOR THE YEAR……….42.96   DEPARTURE………….-0.65
ASOS…………..N/A**
**ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M………0.0    DEPARTURE…………..0.0
TOTAL SNOWFALL FOR THE MONTH……………0.0    DEPARTURE………….-0.3
TOTAL SNOWFALL FOR THE SEASON…………..0.0    DEPARTURE………….-0.3

PRELIMINARY CLIMATE SUMMARY FOR OCTOBER 2013 CALENDAR DAY DATA
DATA REPORTED:
DATE: MAX/MIN/MEAN/DEP/PRECIP/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

10/1  75/50/63/+6/0.00/676/96         16 WNW AERO 16 MPH WNW RMY 18
10/2  78/56/67/+10/0.00/666/95        29 W   AERO 30 MPH W   RMY 29
10/3  77/56/67/+11/0.00/628/90        20 WNW AERO 20 MPH WNW RMY N/A
10/4  67/56/62/+6/0.26/028/04         18 NW  AERO 20 MPH NW  RMY N/A
10/5  67/56/62/+6/0.01/125/18         14 ENE AERO 12 MPH ENE RMY N/A
10/6  58/53/56/+1/0.56/000/00         20 NE  AERO 20 MPH NE  RMY N/A
10/7  75/57/66/+11/0.07/213/31        48 S   AERO 55 MPH S   RMY 55
10/8  65/50/58/+4/0.00/581/85         25 NW  AERO 27 MPH NW  RMY 28
10/9  59/49/54/0/0.00/545/80          25 ENE AERO 24 MPH ENE RMY 25
10/10 61/46/54/0/0.00/095/14          18 NE  AERO 17 MPH NE  RMY 18
10/11 67/50/59/+6/0.00/473/70         20 NE  AERO 20 MPH NE  RMY N/A
10/12 59/50/55/+2/0.02/007/01         30 ENE AER0 31 MPH ENE RMY 32
10/13 59/46/53/0/0.00/482/72          23 ENE AERO 23 MPH ENE RMY 23
10/14 64/42/53/+1/0.00/580/87         15 SSW AERO 15 MPH SSW RMY 15
10/15 66/50/58/+6/0.00/266/40         16 ESE AERO 16 MPH ESE RMY N/A
10/16 60/49/55/+4/0.00/013/02         23 ESE AERO 24 MPH ESE RMY 23
10/17 70/52/61/+10/0.06/277/42        21 S   AERO 23 MPH S   RMY N/A
10/18 67/50/59/+8/T/630/96            32 WNW AERO 32 MPH W   RMY 31
10/19 65/45/55/+5/0.00/379/58         21 W   AERO 22 MPH W   RMY N/A
10/20 61/44/53/+3/0.00/644/99         33 W   AERO 36 MPH W   RMY 34
10/21 67/43/55/+5/0.00/648/100        23 SSW AERO 25 MPH SSW RMY 27
10/22 69/44/57/+8/T/419/65            25 SSW AERO 27 MPH SSW RMY 27
10/23 50/40/45/-4/0.00/103/16         18 WNW AERO 18 MPH WNW RMY N/A
10/24 53/36/45/-4/0.00/640/100        31 W   AERO 31 MPH W   RMY 34
10/25 49/34/42/-7/0.00/401/63         25 WNW AERO 26 MPH WNW RMY 26
10/26 54/34/44/-4/0.00/521/82         35 SW  AERO 36 MPH SSW RMY 39
10/27 55/39/47/-1/0.04/480/76         30 W   AERO 30 MPH W   RMY 29
10/28 58/35/47/-1/0.00/…/..         31 W   AERO 33 MPH W   RMY 34
10/29 50/30/40/-7/0.00/…/..         15 N   AERO 15 MPH N   RMY 15
10/30 51/38/45/-2/0.02/…/..         16 W   AERO 15 MPH W   RMY N/A
10/31 61/43/52/+5/0.05/000/00         37 SSW AERO N/A N/A    RMY N/A

11/1  morning low temp: 61F; the normal low is now 38F

DAILY RECORDS FOR OCTOBER 2013
None so far.

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

RECORDS FOR NOVEMBER 1
HIGH 75 IN 2003
LOW 22 IN 1913,1923
PRECIP 2.93 INCHES IN 1985
SNOWFALL TRACE IN 1906,1951
PEAK GUST 78 ESE IN 1997

RECORDS FOR NOVEMBER 2
HIGH 81 IN 1950
LOW 22 IN 1965
PRECIP 1.67 INCHES IN 1970
SNOWFALL 0.2 IN 1906,1951
PEAK GUST 63 WSW IN 1973

TODAY’S REPORT PREPARED BY: Robert Skilling/Kevin Pecora