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Thursday, November 19, 2015

November 19, 2015

BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, NOVEMBER…

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

DAILY DISCUSSION AND CLIMATE SUMMARY
THURSDAY, NOVEMBER 19, 2015
ALL TIMES ARE IN EASTERN STANDARD TIME

CLOUDS THICKENING AHEAD OF APPROACHING SYSTEM AND RAIN
TEMPERATURES RISE FROM UPPER 30’S TO LOW TO MID 50’S

Clouds were increasing at several levels today and no
sunshine was getting through bright spots in the overcast.
The sun was dimly visible at sunrise as it came over the
horizon. Mount Wachusett was hidden by clouds today at
2000 feet and visibility was between 30 and 40 miles.
Rainfall is expected later today, and it is badly needed
with the monthly deficit over 2 inches. For the year it’s now
reached minus 8.97 inches!

Today’s Observations:

7 A.M.
Weather: Overcast altostratus, altocumulus, few stratocumulus
distant ENE-ESE, line of bright sky along/above horizon NE-SE,
sunrise sun dimly visible
Temperature: 41F; Dew Point: 40F; Wind: SE at 15 kts
Sea-level pressure: 30.42 ins. Hg, steady
Visibility: 30 miles, except 25 SW-NW, light distant fog, 35 miles
NE-SE
6-hr Max temp: 41F
6-hr Min temp: 38F
24-hr precip: none
BHO SA 1155 E15 OVC 30 301/41/40/1315/042/ FEW SC DSNT ENE-ESE ABV
HRZN BND BRGHT SKY XTDNG ABV/ALG HRZN NE-SE SUN DMLY VSB AT S/R
VSBY SW-NW 25 NE-SE 35 THN DSNT FG SW-NW/ 8/07/ 58000 10041 20038

10 A.M.
Weather: Scattered stratocumulus, overcast stratocumulus,
few stratus bright spots in overcast
Temperature: 47F; Dew Point 43F; Wind: SSE at 12 kts,
Sea-level pressure: 30.38 ins. Hg, falling then more slowly
Visibility: 40 miles, mountain in cloud 45  miles WNW, distant haze
BHO SA 1455 E22 BKN 45 OVC 40 286/47/43/1512/038/ FEW STRA BRGHT SPTS
IOVC MTN 45 WNW INCLD DSNT HZ/ 8/5// 56015

1 nov19u.tP.M.
Weather:Scattered stratocumulus, overcast stratocumulus, small break
in overcast overhead, bright spots in overcast, sun occasionally dimly
visible
Temperature: 54F; Dew Point 47F; Wind: SSE at 10G17 kts
Sea-level pressure: 30.29 ins. Hg. falling then more slowly
Visibility: 30 miles, distant haze
6-hr max. temp. 54F
6-hr min. temp. 41F
BHO SA 1755 17 SCT E30 OVC 30 258/53/47/1610G17/029/ SML BINOVC OVHD
BRGHT SPTS IOVC SUN OCNO VSB DSNT HZ/ 8/5// 56028 10054 20041

SUMMARY FOR WEDNESDAY, NOVEMBER 18, 2015

TEMPERATURE (DEGREES F)
MAX…..50   NORMAL…..49
MIN…..35   NORMAL…..33
MEAN….43   NORMAL…..41

DEPARTURE FROM 30-YEAR NORMAL………………….+2
TOTAL DEPARTURE FOR THE MONTH………………..+115  [+6.2 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..22   DEPARTURE……….-2
TOTAL HEATING UNITS FOR THE MONTH………….269   DEPARTURE……..-114
TOTAL HEATING UNITS FOR THE SEASON…………723   DEPARTURE……..-223
TOTAL HEATING UNITS LAST SEASON TO DATE…….823   DIFFERENCE…….-100

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….17 SSE AT  11:12 P.M.
ASOS……………………21 SSE AT  11:15 P.M.
DAVIS…………………..21 SSE AT  11:11 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY…………………15 SE  AT  11:12 P.M.
MAXIMUM 2-MINUTE ASOS AVERAGE………………16 SE  AT  11:15 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..16 SSE AT  11:14 P.M.
AVERAGE WIND SPEED AND DIRECTION……………7.9 S 5 NNE
ASOS……………………8.1
DAVIS…………………..7.2 S [180 Deg.] * Last of several occurrences

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…..0.00  DEPARTURE…..-0.16
ASOS……………0.00
TOTAL PRECIPITATION FOR THE MONTH………..0.80  DEPARTURE…..-2.03
ASOS……………0.80
TOTAL PRECIPITATION FOR THE YEAR………..37.63  DEPARTURE…..-8.97
ASOS…………….N/A ***
*** ASOS annual total not available due to erroneous readings

PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER 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

11/1  59/45/52/+6/T/006/01                  30 SSW RMY 31
11/2  62/47/55/+9/0.00/476/77               24 W   RMY N/A
11/3  71/44/58/+12/0.00/616/100             25 W   RMY 25
11/4  66/49/58/+13/0.00/601/98              22 SSW RMY N/A
11/5  72/51/62/+17/0.00/281/46              31 SW  RMY 36
11/6  71/60/66/+21/0.00/109/18              35 SSW RMY 38
11/7  64/46/55/+10/0.00/024/04              33 WNW RMY 35
11/8  54/39/47/+3/0.00/591/98               26 NW  RMY 30
11/9  59/38/49/+5/0.00/577/96               20 W   RMY 21
11/10 53/45/49/+5/…./000/00               28 NE  RMY N/A
11/11 48/43/46/+3/…./000/00               41 NE  RMY N/A
11/12 55/42/49/+6/…./000/00               28 S   RMY 30
11/13 57/41/49/+6/…./385/65               40 WSW RMY 47
11/14 45/31/38/-4/0.00/425/72               40 NW  RMY 47
11/15 51/31/41/-1/0.00/…/..               25 W   RMY 27
11/16 59/36/48/+6/0.00/…/..               25 NNW RMY 29
11/17 45/28/37/-4/0.00/…/..               18 NNE RMY N/A
11/18 50/35/43/+2/0.00/…/.. 17 SSE RMY N/A

11/19 low since midnight is 38F; normal low is now 33F

DAILY RECORDS FOR NOVEMBER 2015

**11/6 DAILY RECORD MAXIMUM TEMPERATURE OF 71F
TIES PREVIOUS RECORD OF 71F SET IN 1959

**11/6 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 60F
BREAKS PREVIOUS RECORD OF 58F SET IN 1938

**11/6 DAILY RECORD HIGH MINIMUM TEMPERATURE OF 60F
TIES PREVIOUS MONTHLY RECORD OF 60F SET ON
11/8/1996

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

RECORDS FOR NOVEMBER 19
HIGH 72 IN 1941
LOW 10 IN 1936
PRECIP 1.92 INCHES IN 1926
SNOWFALL 11.0 INS IN 1986
PEAK GUST 59e E IN 1945

RECORDS FOR NOVEMBER 20
HIGH 72 IN 1953
LOW 10 IN 1894
PRECIP 2.78 INS IN 1988
SNOWFALL 3.0 INS IN 1897
PEAK GUST 73e S IN 1950

TODAY’S REPORT PREPARED BY: Robert Skilling

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Blue Hill Observatory & Science Center · Legal

Data Use & Privacy Policy

Please read the full Policy before accessing Observatory data · Effective January 1, 2025

Notice: By accessing, downloading, or using any Blue Hill Observatory data or services, you unconditionally accept and agree to be bound by this Policy in its entirety. If you do not agree, you may not access or use Observatory data.
Effective January 1, 2025 · Milton, Massachusetts · bluehill.org
Part I — Data Use Policy
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