BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY SATURDAY, FEBRUARY 12, 2005 ALL TIMES ARE IN EASTERN STANDARD TIME [unless otherwise noted] FIRST FEBRUARY DAY COLDER THAN NORMAL ON FRIDAY... TOTAL SNOWFALL FOR LAST STORM WAS 3.4 INCHES... FEBRUARY AVERAGING DRIER AND MUCH WARMER THAN NORMAL... Filtered sunshine is the rule today with a mostly cloudy sky, though the temperature has climbed to the mid-30s by early afternoon. Friday averaged 26 degrees, or one degree below the normal for the date. The total precipitation for the last rain and snow storm on 2/9-11 was 1.03 inches with 3.4 inches of snow. Ten inches of old snow remain on the summit as of this morning. A peak wind gust to 44 mph WNW occurred at 12:32 PM on Friday, and this is the highest gust for the month so far. The strong winds caused some drifting of the snow on the summit. Today's observations: 7 A.M. Weather: Overcast with cirrus and altocumulus Temperature: 25F, Dew point: 18F, Wind: WSW 16 mph Sea-level pressure: 29.59 inches, rising Visibility: 25 miles BHO SA 1155 50 SCT 80 SCT E200 OVC 25 022/25/18/2414/959/ FEW ACSL NE-SE THN SPTS IOVC OVHD BINOVC NE-SE SUN VSBL/ 8/571 4/010 51014 10025 20024 10 A.M. Weather: Overcast with cirrostratus and altocumulus Temperature: 29F, Dew Point: 20F, Wind: SW 14 mph Visibility: 30 miles Sea-level pressure: 29.59 inches steady BHO SA 1455 80 SCT 200 OVC 30 022/29/20/2212/959/ THN SPTS IOVC DSNT W-NW SUN DMLY VSBL/ 8/058 54000 1 P.M. Weather: Overcast with cirrus and scattered cumulus Temperature: 35F, Dew Point: 23F, Wind: WSW 15G25 mph Visibility: 35 miles, 30 miles to NW BHO SA 1755 35 SCT 200 -OVC 35 015/35/23/2413G22/957/ FEW LWR CI VSBY NW 30/ 8/101 56007 10036 20025 WEATHER SUMMARY FOR FRIDAY, FEBRUARY 11: TEMPERATURE (DEGREES F) MAX.....30 NORMAL.....35 ASOS.....30 AT 4:25 P.M. MIN.....21 NORMAL.....20 ASOS.....21 AT 8:23 A.M. MEAN....26 NORMAL.....27 DEPARTURE FROM 30-YEAR NORMAL......-1 TOTAL DEPARTURE FOR THE MONTH.....+84 (+7.4 DEGREES/DAY) HEATING DEGREE DAY INFORMATION TOTAL HEATING DEGREE DAYS FOR FRIDAY.........39 DEPARTURE.....+1 TOTAL HEATING DEGREE DAYS FOR THE MONTH.....338 DEPARTURE....-86 TOTAL HEATING DEGREE DAYS FOR THE SEASON...3818 DEPARTURE...-142 TOTAL HEATING DEGREE DAYS FOR LAST YEAR....3999 DIFFERENCE..-181 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........44 WNW AT 12:32 P.M. AEROVANE.........51 WNW AT 3:18 P.M. ASOS.............44 WNW AT 12:31 P.M. DAVIS............44 WNW AT 3:21 P.M. FASTEST MILE FOR YESTERDAY..........34 WNW AT 3:18 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE.......33 WNW AT 3:19 P.M. AVERAGE WIND SPEED AND DIRECTION..21.4 WNW ASOS...........20.7 PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M...TRACE DEPARTURE....-0.14 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........1.33 DEPARTURE....-0.28 ASOS..............1.29 TOTAL PRECIPITATION FOR THE YEAR...........7.57 DEPARTURE....+1.18 ASOS..............7.12* *EXCLUDES 3.19 INCHES OF ERRONEOUS PRECIPITATION RECORDED FROM 1/23-1/28. SNOWFALL (INCHES) THROUGH THIS MORNING (EST) TOTAL SNOWFALL 24 HRS ENDING 7 A.M........TRACE DEPARTURE.....-0.6 TOTAL SNOWFALL FOR THE MONTH................3.7 DEPARTURE.....-3.4 TOTAL SNOWFALL FOR THE SEASON..............72.5 DEPARTURE....+36.0 PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY 2005......CALENDAR DAY DATA DATA REPORTED: DATE MAX/MIN/MEAN/DEP/PRECIP/SNOW/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane recording wind system when significant TSTM: Thunderstorm day ....: Data not yet available 2/1 38/18/28/+2/0/0/600/100 13 MPH NNW 2/2 35/20/28/+2/0/0/549/91 23 MPH N 2/3 36/20/28/+2/0.28/0.2/012/02 27 MPH NNE 2/4 33/30/32/+6/0.02/0.1/000/00 33 MPH N 2/5 49/30/40/+13/0/0/605/99 30 MPH N 2/6 41/30/36/+9/0/0/613/100 31 MPH N 2/7 50/29/40/+13/0/0/400/65 22 MPH S 2/8 47/36/42/+15/0/0/012/02 24 MPH SSW 2/9 50/36/43/+16/0.01/0/.../.. 25 MPH W 2/10 38/30/34/+7/.../../.../.. 26 MPH WNW 2/11 30/21/26/-1/.../../.../.. 44 MPH WNW (Aero: 51 WNW) 2/12 ..overnight low 24 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR FEBRUARY 12 HIGH 56F IN 1999 LOW -14F IN 1914 PRECIP 4.85 INCHES IN 1886 [RECORD FOR MONTH] SNOWFALL 11.0 INCHES IN 1983 PEAK GUST 70 MPH E IN 1985 RECORDS FOR FEBRUARY 13 HIGH 64F IN 1951 LOW -10F IN 1967 PRECIP 1.90 INCHES IN 1966 SNOWFALL 13.5 INCHES IN 1894 PEAK GUST 60 MPH SE IN 1972 TODAY'S REPORT BY: Mike Iacono