Tuesday, November 19, 2024

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

TUESDAY, NOVEMBER 19, 2024
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0641E
SUNSET:  1618E

ABUNDANT SUNSHINE AND BREEZY, AND STILL MILDER THAN NORMAL….

Skies have been clear all day with only a few low and high clouds
well off in the distance. Smoke plumes from the fire to the distant
north and the one just to our east continue to be observed.

Temperatures are a bit cooler than yesterday, but have still reached
the mid 50s early this afternoon. This is still a good 6-8 degrees
above the expected high for today. The dew point has been holding
in the mid 30s all day.

Winds have been on the brisk side today, generally out of the north-
west to north-northwest. The average speed for the day to this point
is around 13mph. Gusts are occasionally pushing over the 20mph, but
so far there hasn’t been anything overly impressive. The peak gust
for the day so far is 29mph, which occurred at 10:52am this morning.

Visibility has been excellent today, increasing from 60 miles early
this morning to 80 miles by early this afternoon.

The maximum temperature for today is 56 degrees, which is 7 degrees
above the normal high of 49F. The minimum temperature since midnight
is 39F degrees, which is 6 degrees above the normal low of 33F.

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Today’s Observations:

7 A.M.
Weather: Clear, few stratocumulus distant W-NNW, few cirrus distant
SW-W, smoke plume E-ESE, smoke layer distant N-NE
Temperature: 41F; Dew Point: 34F; Relative Humidity: 76%
Wind: NW @ 8G15 kts
Sea-level pressure: 1011.9 mb; 29.88 in. Hg: falling, then rising
Visibility: 60 miles
6-hr Max temp: 48F
6-hr Min temp: 39F
24-hr Precip:  Trace
24-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1155 CLR 60 119/41/34/3108G15/988/ FEW SC DSNT W-NNW FEW CI DSNT
SW-W K PLUME E-ESE K LYR DSNT N-NE/ 8/501 53005 70000 10044 20039

10 A.M.
Weather: Clear, few stratocumulus distant WNW-N, few cirrus distant S-W,
smoke plume distant N-NNE and E-ESE
Temperature: 50F; Dew Point: 35F; Relative Humidity: 56%
Wind: NNW @ 14G22 kts
Sea-level pressure: 1012.1 mb; 29.89 in. Hg: rising, then falling
Visibility: 70 miles
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 CLR 70 121/50/35/3314G22/989/ FEW SC DSNT WNW-N FEW CI DSNT
S-W K PLUME DSNT N-NNE AND E-ESE/ 8/501 50002

1 P.M.
Weather: Clear, few cirrus distant S-NW, smoke plume distant N and E
Temperature: 55F; Dew Point: 36F; Relative Humidity: 48%
Wind: NW @ 9G17 kts
Sea-level pressure: 1009.9 mb; 29.82 in. Hg: falling, then more slowly
Visibility: 80 miles
6-hr Max temp: 56F
6-hr Min temp: 41F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 CLR 80 099/55/36/3109G17/982/ FEW CI DSNT S-NW K PLUME
DSNT N AND E/ 8/001 56022 10056 20041

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SUMMARY FOR MONDAY, NOVEMBER 18, 2024

TEMPERATURE (DEGREES F)
MAX…….61  NORMAL…..49
MIN…….43  NORMAL…..33
MEAN……52  NORMAL…..41

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL………….+11
TOTAL DEPARTURE FOR THE MONTH…………………….+95 [+5.1 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY……………13  DEPARTURE…….-11
TOTAL HEATING UNITS FOR THE MONTH…………..289  DEPARTURE…….-90
TOTAL HEATING UNITS FOR THE SEASON………….662  DEPARTURE……-229
TOTAL HEATING UNITS LAST SEASON TO DATE……..738  DEPARTURE…….-76

COOLING DEGREE DAYS (SEASON: JAN 2024 THRU DEC 2024)
TOTAL COOLING UNITS FOR YESTERDAY…………….0  DEPARTURE………0
TOTAL COOLING UNITS FOR THE MONTH…………….5  DEPARTURE……..+5
TOTAL COOLING UNITS FOR THE SEASON………….768  DEPARTURE…….+91
TOTAL COOLING UNITS LAST SEASON TO DATE……..715  DEPARTURE…….+53

PEAK WIND GUST (MPH):
Note: Instruments designated #1 = Main Tower, #2 = South Tower,
F420C, Contacting, Merlin, and Richards are all on Main Tower.
E=Estimated

F420C (Official)………..29 NW   @   03:00 P.M.
VECTOR #1 (1-Sec)……….28 NW   @   03:00 P.M.
VECTOR #2 (1-Sec)……….29 NW   @   03:00 P.M.
DAVIS #1……………….29 WNW  @   03:00 P.M.
DAVIS #2 ………………26 NNW  @   03:01 P.M.
RMY #1 (Instantaneous)…..31 NW   @   03:00 P.M.
RMY #2 (Instantaneous)…..29 NW   @   04:30 P.M.
MERLIN…………………29 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………20 NW   @   03:03 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..21      @   03:01 P.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..21      @   03:01 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………22 NW   @   03:01 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………20 NNW  @   03:02 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..21 NW   @   03:01 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..20 NW   @   03:01 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..10.3 NW  [248 total miles] VECTOR #1………………10.4
VECTOR #2………………10.7
DAVIS #1………………….M M
DAVIS #2……………….10.1 NW
RMY #1…………………10.2 NW
RMY #2…………………10.5 NW
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.13
TOTAL PRECIPITATION FOR THE MONTH…………..0.08 DEPARTURE…..-2.48
TOTAL PRECIPITATION FOR THE YEAR (2024)…….43.88 DEPARTURE…..-2.84

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………..0.0 DEPARTURE……-0.1
TOTAL SNOWFALL FOR THE MONTH………………..0.0 DEPARTURE……-0.7
TOTAL SNOWFALL FOR THE SEASON (2024-2025)…….0.0 DEPARTURE……-1.4

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PRELIMINARY CLIMATE SUMMARY FOR NOVEMBER CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN)/SUN(%)/PEAK GUST/VEC1/RMY GUST
PEAK GUST: F420C (Official)
VEC1: Vector #1 1-second gust
RMY:  R.M. Young #1 wind gust recording system (Instantaneous)
TSTM: Thunderstorm day (thunder heard some time during day)
….: Data not yet available, records not finalized
M:    Missing data

11/1   77/49/63/+16/0.00/0.0/347/56       36 WNW VEC1 36 WNW RMY 37
11/2   55/37/46/-1/0.00/0.0/228/37        21 N   VEC1 23 N   RMY 21
11/3   48/30/39/-7/0.00/0.0/595/97        20 NNW VEC1 21 NNW RMY 21
11/4   49/33/41/-5/0.00/0.0/061/10        20 SSE VEC1 21 SSE RMY 21
11/5   73/46/60/+15/0.00/0.0/505/83       35 SW  VEC1 35 SW  RMY 37
11/6   80/59/70/+25/0.00/0.0/558/92       39 WSW VEC1 39 WSW RMY 42
11/7   69/47/58/+13/0.00/0.0/519/86       37 WNW VEC1 35 WNW RMY 42
11/8   63/41/52/+7/0.00/0.0/572/95        42 WNW VEC1 42 WNW RMY 47
11/9   50/36/43/-1/0.00/0.0/599/100       40 NW  VEC1 42 NW  RMY 43
11/10  60/32/46/+2/T/0.0/388/65           29 WSW VEC1 29 SW  RMY 31
11/11  66/50/58/+15/0.08/0.0/457/77       40 SW  VEC1 42 SW  RMY 43
11/12  54/33/44/+1/0.00/0.0/545/92        48 NNW VEC1 50 NNW RMY 56
11/13  43/28/36/-7/0.00/0.0/584/99        32 N   VEC1 33 N   RMY 31
11/14  42/27/35/-7/0.00/0.0/…/..        22 NE  VEC1 22 NE  RMY 22
11/15  58/27/43/+1/0.00/0.0/…/..        28 NW  VEC1 28 NW  RMY 30
11/16  60/38/49/+7/0.00/0.0/…/..        33 NNW VEC1 35 NNW RMY 35
11/17  62/40/51/+10/0.00/0.0/…/..       26 NW  VEC1 26 NW  RMY 26
11/18  61/43/52/+11/T/0.0/…/..          29 NW  VEC1 28 NW  RMY 31

11/19 The low since midnight is 39F, the daily normal low is 33F.

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NOVEMBER DAILY RECORDS TO DATE

11/1 RECORD HIGH TEMPERATURE OF 77F, OLD RECORD WAS 75F IN 2003.

11/6 RECORD HIGH TEMPERATURE OF 80F, OLD RECORD WAS 74F IN 2022.

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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 9 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: Matt Douglas