Wednesday, March 9, 2016

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

DAILY DISCUSSION AND CLIMATE SUMMARY
WEDNESDAY, MARCH 9, 2016
ALL TIMES ARE IN EASTERN STANDARD TIME

UNSEASONABLE WARMTH REACHES RECORD LEVELS TODAY- 73F BY 1:00 PM

A big warm up is underway here in southern New England as
temperatures reached into the mid 50s yesterday and were
already in the 50s once again by 9:00 AM EST this morning.

Fog rolled in over night blanketing the summit with above
normal temperatures and poor visibility. Visibility was only
1/4 of a mile by the 7:00 AM EST observation with an overnight
low of 38F. Fog soon cleared not long after the morning observation
revealing blue skies overhead.

By today’s 1:00 PM EST observation the mercury had climbed to
a maximum of 73F so far, already exceeding today’s daily record
maximum temperature of 71F set back in 2000. Hazy conditions
were limiting visibility to 30 miles in all directions even with
mostly clear skies overhead.

This afternoon’s reading of 73F has not only broken today’s daily
record, but also represents the warmest temperature reading so
early in the meteorological Spring season.

Today’s Observations:

7 A.M.
Weather: Fog
Temperature: 45F; Dew Point: 45F; Wind: S at 19G28 kts
Peak Wind: 28 knots S at 6:49 AM EST
Sea-level pressure: 30.14 ins. Hg, about the same as 3 hrs ago
Visibility: 1/4 of a mile, obscured by fog
6-hr Max temp: 45F
6-hr Min temp: 39F
24-hr precip: 0.00
24-hr snowfall: 0.00 inch
BHO SA 1155 W3 X 1/4F 205/45/45/1919G28/014/ PK WND 1928/49/
8//// 58001 10045 20039

10 A.M.
Weather: Clear, few cirrus distant N-SSE
Temperature: 58F; Dew Point: 43F; Wind: S at 11G20 kts,
Sea-level pressure: 30.11 ins. Hg, steady, then falling
Visibility: 20 miles, thin fog in all directions, hazy
BHO SA 1455 CLR 20 195/58/43/1811G20/011/ FEW CI DSNT N-SSE
THN FG ALQDS HAZY/ 8/001 58010

1 P.M.
Weather: Clear, few cirrus distant W-NE
Temperature: 72F; Dew Point: 43F; Wind: SSW at 13 kts,
Sea-level pressure: 30.03 ins. Hg, falling, then more quickly
Visibility: 30 miles, hazy
6-hr Max temp: 73F
6-hr Min temp: 45F
BHO SA 1755 CLR 30 171/72/43/2013/003/ FEW CI DSNT W-NE HAZY/
8/001 58024 10073 20045

SUMMARY FOR TUESDAY, MARCH 8, 2016

TEMPERATURE (DEGREES F)
MAX…..55   NORMAL…..42
MIN…..35   NORMAL…..24
MEAN….45   NORMAL…..33

DEPARTURE FROM 30-YEAR NORMAL……………………+12
TOTAL DEPARTURE FOR THE MONTH……………………+16 [+1.8 DEGREES/DAY]

HEATING DEGREE DAYS (SEASON JUL TO JUN)
TOTAL HEATING UNITS FOR YESTERDAY…………..20   DEPARTURE………-12
TOTAL HEATING UNITS FOR THE MONTH………….248   DEPARTURE………-16
TOTAL HEATING UNITS FOR THE SEASON………..3931   DEPARTURE……..-901
TOTAL HEATING UNITS LAST SEASON TO DATE……5016   DIFFERENCE……-1085

PEAK GUST AND AVERAGE WIND SPEED (MPH)
PEAK WIND GUST FOR YESTERDAY……………….23 S   AT 11:56 P.M.*
ASOS……………………23 S   AT 11:23 P.M.
DAVIS…………………..22 S   AT  9:39 P.M. RMY N/A
FASTEST MILE FOR YESTERDAY…………………18 S   AT 11:21 P.M.*
MAXIMUM 2-MINUTE ASOS AVERAGE………………18 S   AT 11:23 P.M.
MAXIMUM 2-MINUTE DAVIS AVERAGE……………..18 S   AT 10:30 P.M.
AVERAGE WIND SPEED AND DIRECTION…………..9.7 N
ASOS…………………..10.1
DAVIS………………….8.7 ENE [069 Deg.] * Last of several occurrences.

PRECIPITATION (INCHES) THROUGH THIS MORNING (EST)
TOTAL PRECIPITATION 24 HRS ENDING 7 A.M….0.00  DEPARTURE……-0.18
ASOS…………..0.00
TOTAL PRECIPITATION FOR THE MONTH……….0.45  DEPARTURE……-0.94
ASOS…………..0.48
TOTAL PRECIPITATION FOR THE YEAR………..9.82  DEPARTURE……+0.01
ASOS………….10.44

SNOWFALL (INCHES) THROUGH THIS MORNING (EST)
TOTAL SNOWFALL 24 HRS ENDING 7 A.M……….0.0  DEPARTURE…….-0.5
TOTAL SNOWFALL FOR THE MONTH…………….0.5  DEPARTURE…….-3.6
TOTAL SNOWFALL FOR THE SEASON…………..38.6  DEPARTURE……-13.0

PRELIMINARY CLIMATE SUMMARY FOR MARCH CALENDAR DAY DATA
DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/ AERO/RMY GUST
AERO: Aerovane wind recording system 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

3/1   45/30/38/+7/0.00/0.0/…/..           54 W   AERO 60 W   RMY 53
3/2   52/21/37/+6/0.41/0.0/…/..           44 WNW AERP 47 NW  RMY 42
3/3   34/16/25/-7/0.00/0.0/…/..           30 WNW AERO 36 WNW RMY N/A
3/4   30/24/27/-5/…./…/…/..           32 N   AERO 38 N   RMY 34
3/5   35/20/28/-4/0.00/0.0/…/..           31 N   AERO 36 N   RMY N/A
3/6   40/25/33/+1/0.00/0.0/…/..           21 SSE AERO 21 SSE RMY N/A
3/7   49/29/39/+6/0.00/0.0/…/..           43 SSW AERO 48 SSW RMY 45
3/8   55/35/45/+12/0.00/0.0/…/..          23 S   AERO 24 S   RMY N/A

3/9   morning low temp. since midnight 38F; normal now 24F

DAILY RECORDS FOR MARCH 2016

-NONE SO FAR.

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

RECORDS FOR MARCH 9
HIGH 71 IN 2000
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]

RECORDS FOR MARCH 10
HIGH 69 IN 1977
LOW 2 IN 1984
PRECIP 2.00 INS. IN 1994
SNOWFALL 4.0 INS. IN 1997
PEAK GUST 80 MPH NW IN 1974

TODAY’S REPORT PREPARED BY: Brian Fitzgerald