Saturday, March 8, 2025

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

SATURDAY, MARCH 8, 2025
ALL TIMES ARE IN EASTERN STANDARD TIME (EST)
SUNRISE: 0608E
SUNSET:  1743E

GUSTY WINDS RETURN WITH MOSTLY SUNNY SKIES….

Yesterday was certainly a windy one, and after a brief reprieve during
the first half of the morning, the gusty conditions have returned.
Skies began half covered by a mid-level cloud deck off to our south,
with virga visible in the distance. Since then, the mid-level clouds
have departed while cumulus have moved in from the west-northwest.

Temperatures are seasonable, with a low in the upper 20s this morning and
a high so far in the low 40s. Since the winds have picked up from the
west-northwest, heating has been limited due to cold air advection. The dew
point has remained in the teens.

As before mentioned, it is gusty out there! Winds picked up around 8am
this morning after starting out on the quiet side. The past several hours
have seen speeds averaging close to 25mph. Gusts have frequented the 35-45mph
range, even occasionally exceeding 50mph. The peak gust to this point
is 54mph at 10:30am.

Visibility has varied a bit due to virga in various directions, but by early
afternoon views extended up to 80 miles.

The maximum temperature for today is 40F degrees, which is 2 degrees below
the normal high of 42F. The minimum temperature since midnight is 28F
degrees, which is 4 degrees above the normal low of 24F.

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Today’s Observations:

7 A.M.
Weather: Scattered nimbostratus, broken altocumulus,
few stratocumulus distant NW-NNE, virga distant SE-SW
Temperature: 28F; Dew Point: 15F; Relative Humidity: 57%
Wind: SW @ 13 kts
Sea-level pressure: 999.9 mb; 29.53 in. Hg: falling, then steady
Visibility: 60 miles, virga distant SE-SW
6-hr Max temp: 30F
6-hr Min temp: 28F
24-hr Precip:  Trace
24-hr Snowfall: Trace
Snow Depth: 0 inches
BHO SA 1155 90 SCT E110 BKN 60 999/28/15/2313/953/ FEW SC DSNT NW-NNE
VIRGA DSNT SE-SW TOTAL NEW SNW PST 24 HRS TRACE/ 8/570 56006 70000
10030 20028

10 A.M.
Weather: Scattered cumulus, scattered altocumulus/altostratus
Temperature: 38F; Dew Point: 19F; Relative Humidity: 45%
Wind: W @ 25G34 kts, peak wind W 44mph at 9:33 A.M.
Sea-level pressure: 998.2 mb; 29.48 in. Hg: rising, then falling
Visibility: 40 miles, virga distant
3-hr Precip:  0.00 inches
3-hr Snowfall: 0.0 inches
BHO SA 1455 40 SCT 120 SCT 40 982/38/19/2825G34/948/ VIRGA DSNT SW-NW-N
PK WND 2738/33/ 8/270 58017

1 P.M.
Weather: Scattered cumulus
Temperature: 39F; Dew Point: 17F; Relative Humidity: 40%
Wind: WNW @ 26G38 kts, peak wind W 52mph at 12:19 P.M.
Sea-level pressure: 996.4 mb; 29.42 in. Hg: falling unsteadily
Visibility: 80 miles
6-hr Max temp: 40F
6-hr Min temp: 28F
6-hr Precip:  0.00 inches
6-hr Snowfall: 0.0 inches
Snow Depth: 0 inches
BHO SA 1755 55 SCT 80 964/39/17/2926G38/942/ PK WND 2845/19/ 8/200 57018
10040 20028

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SUMMARY FOR FRIDAY, MARCH 7, 2025

TEMPERATURE (DEGREES F)
MAX…….41   NORMAL…..41
MIN…….25   NORMAL…..24
MEAN……33   NORMAL…..33

DEPARTURE FROM 30-YEAR (1991-2020) NORMAL……………0
TOTAL DEPARTURE FOR THE MONTH…………………….+13 [+1.7 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON: JUL 2024 THRU JUN 2025)
TOTAL HEATING UNITS FOR YESTERDAY…………….32  DEPARTURE………0
TOTAL HEATING UNITS FOR THE MONTH……………217  DEPARTURE…….-14
TOTAL HEATING UNITS FOR THE SEASON………….4398  DEPARTURE……-265
TOTAL HEATING UNITS LAST SEASON TO DATE……..4056  DEPARTURE……+342

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)………..60 WNW  @   09:33 A.M.
VECTOR #1 (1-Sec)……….61 WNW  @   09:33 A.M.
VECTOR #2 (1-Sec)……….66 WNW  @   09:33 A.M.
DAVIS #1……………….61 W    @   02:01 P.M.
DAVIS #2 ………………61 W    @   01:54 P.M.
RMY #1 (Instantaneous)…..64 NW   @   09:41 A.M.
RMY #2 (Instantaneous)…..69 W    @   01:54 P.M.
MERLIN…………………58 NW
RICHARDS (C5C) (Inst)…..OTS

FASTEST MILE:
CONTACTING ANEMOMETER/OFFICIAL………………43 W    @   01:09 P.M.
MAXIMUM 2-MINUTE VECTOR #1 AVERAGE…………..42      @   09:34 A.M.
MAXIMUM 2-MINUTE VECTOR #2 AVERAGE…………..45      @   12:34 P.M.
MAXIMUM 2-MINUTE DAVIS #1 AVERAGE……………45 W    @   01:09 P.M.
MAXIMUM 2-MINUTE DAVIS #2 AVERAGE……………46 W    @   01:55 P.M.
MAXIMUM 2-MINUTE RMY #1 AVERAGE……………..39 W    @   01:09 P.M.
MAXIMUM 2-MINUTE RMY #2 AVERAGE……………..44 WNW  @   12:34 P.M.
MAXIMUM 2-MINUTE RICHARDS (C5C) AVERAGE……..OTS

AVERAGE WIND SPEED AND DIRECTION:
CONTACTING/OFFICIAL……..26.8 WNW [643 total miles] VECTOR #1………………24.9
VECTOR #2………………27.4
DAVIS #1……………….26.7 WNW
DAVIS #2……………….27.3 NW
RMY #1…………………23.7 WNW
RMY #2…………………26.4 WNW
RICHARDS (C5C)…………..OTS

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST):
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M…….TRACE DEPARTURE…..-0.18
TOTAL PRECIPITATION FOR THE MONTH…………..1.18 DEPARTURE…..-0.03
TOTAL PRECIPITATION FOR THE YEAR (2025)……..6.83 DEPARTURE…..-2.88

SNOWFALL (INCHES) THROUGH THIS MORNING (EST):
TOTAL SNOWFALL 24 HRS ENDING 7 A.M…………TRACE DEPARTURE……-0.6
TOTAL SNOWFALL FOR THE MONTH………………TRACE DEPARTURE……-4.3
TOTAL SNOWFALL FOR THE SEASON (2024-2025)……34.1 DEPARTURE…..-22.1

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PRELIMINARY CLIMATE SUMMARY FOR MARCH 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

3/1    50/21/36/+5/T/T/081/12            46 NW  VEC1 46 NW  RMY 49
3/2    28/14/21/-11/0.00/0.0/672/99      41 NW  VEC1 42 NW  RMY 43
3/3    31/8/20/-12/0.00/0.0/667/98       28 NW  VEC1 28 NW  RMY 31
3/4    48/23/36/+4/0.00/0.0/390/57       41 SW  VEC1 42 SW  RMY 43
3/5    54/41/48/+16/0.52/0.0/021/03      50 SSW VEC1 50 SSW RMY 55
3/6    55/32/44/+11/0.66/T/…/..        69 S   VEC1 69 S   RMY 68
3/7    41/25/33/0/T/T/…/..             60 WNW VEC1 61 WNW RMY 64

3/8 The low since midnight is 28F, the daily normal low is 24F.

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MARCH DAILY RECORDS TO DATE

NONE.

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

RECORDS FOR MARCH 8
HIGH 66 IN 2012
LOW 2 IN 1986
PRECIP 2.20 INS. IN 2008
SNOWFALL 18.0 INS. IN 2013
PEAK GUST 69 MPH SSW IN 2008

RECORDS FOR MARCH 9
HIGH 75 IN 2016
LOW 1 IN 2007
PRECIP 2.67 INS. IN 1998
SNOWFALL 6.3 INS. IN 2001
PEAK GUST 102e MPH S IN 1942 [RECORD FOR MONTH]

TODAY’S REPORT PREPARED BY: Joshua Polen