BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS 02186 ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, FEBRUARY 12, 2004 ALL TIMES ARE IN EASTERN STANDARD TIME DAILY DISCUSSION TODAY AT 1 P.M. TODAY'S OBSERVATIONS.... 2/12/2004 THU 7 a.m. high thin overcast with visibility 60 miles; temp. 17; wind ssw at 08 mph... BHO SA 1155 100 SCT 300 -OVC 60 237/17/8/2107/023/ AC LYR XTDNG W-NNE AND INCRSNG PTCHS SNW VIRGA FRM LYR BINOVC DSNT NE-E WND GRDLY BACKING/ 8/057/ 4/001 51004 10020 20016 10 a.m. high overcast sun dimly visible and vsibility 70 miles; temp. 24; wind west at 06 mph... BHO SA 1455 100 SCT E150 OVC 70 234/24/10/2705/022/ FEW LWR AC SUN DMLY VSB/ 8/07// 58003 1 p.m. mostly cloudy with some dimmed sunshine and visibility 50 miles with increasing light haze; temp. 30; wind wsw at 10 mph... 6 hour max. temp. 30 degrees... BHO SA 1755 60 SCT E80 BKN 220 BKN 250 OVC 50 208/30/13/2509/014/ DENSE CI ALQDS OVC PTLY THN BINOVC LGT HAZE/ 8/072/ 58026 10030 20017 OUR WEATHER SUMMARY FOR WEDNESDAY, FEBRUARY 11 TEMPERATURE (DEGREES F) MAX.....35 NORMAL.....35 HAZEN SHELTER: 35.0 @ 12:36 P.M. MIN.... 21 NORMAL.....20 HAZEN SHELTER: 20.9 @ 11:57 P.M. MEAN....28 NORMAL.....27 DEPARTURE FROM 30-YEAR NORMAL.....+1 TOTAL DEPARTURE FEBRUARY TO DATE: +26 DEPARTURE FOR THE FEBRUARY TO DATE: +2.2 DEGREES/DAY ASOS MAX/MIN FOR 2/11: 35/21 HEATING DEGREE DAYS TOTAL HEATING DEGREE DAYS FOR YESTERDAY.......37 DEPARTURE.....-1 TOTAL HEATING DEGREE DAYS FOR FEBRUARY...... 396 DEPARTURE.... -26 TOTAL HEATING DEGREE DAYS FOR THE SEASON....3999 DEPARTURE.....+39 TOTAL HEATING DEGREE DAYS FOR LAST SEASON...4162 DIFFERENCE...-163 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY........46 W AT 2:51 P.M. ** AEROVANE.........46 W AT 2:14 P.M. ASOS.............43 W AT 2:51 P.M. FASTEST MILE FOR YESTERDAY..........35 W AT 2:14 P.M. ** MAXIMUM 2-MINUTE ASOS AVERAGE.......35 W AT 2:52 P.M. AVERAGE ASOS WIND FOR YESTERDAY ....17.5 MPH ** second of two occurrences PRECIPITATION (INCHES) TOTAL PRECIPITATION 24 HR ENDING 7 A.M.....0.00 ASOS..............0.00 TOTAL PRECIPITATION FOR FEBRUARY...........1.71 TOTAL DEPARTURE FOR FEBRUARY TO DATE.......0.10 TOTAL ASOS PRECIPITATION FOR FEBRUARY......1.56 TOTAL PRECIPITATION FOR JANUARY............1.72 DEPARTURE....-3.06 ASOS..............1.40 TOTAL PRECIPITATION FOR 2004...............3.43 DEPARTURE....-2.96 TOTAL ASOS PRECIPITATION FOR 2004..........2.96 SNOWFALL (INCHES) TOTAL SNOWFALL FOR 24 HRS ENDING 7 A.M......0.0 TOTAL SNOWFALL FOR FEBRUARY TO DATE.........2.5 DEPARTURE......-3.0 TOTAL SNOWFALL FOR JANUARY ................8.5 DEPARTURE......-7.1 TOTAL SNOWFALL FOR THE SEASON..............41.2 DEPARTURE......+6.6 PRELIMINARY CLIMATE SUMMARY FOR FEBRUARY, 2004......CALENDAR DAY DATA FEBRUARY 2004 DAILY 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 31/9/20/-6/0/0/599/100 33 NW Aerovane 38 MPH NW 2/2 37/18/28/+2/0/0/578/96 21 NNW 2/3 42/25/34/+8/0.51/0.2/000/00 47 SSE Aerovane 49 MPH SSE 2/4 42/24/33/+7/T/0/564/93 46 W Aerovane 47 MPH W 2/5 34/21/28/+1/0/0/451/74 33 WNW 2/6 33/24/29/+2/1.08/2.3/000/00 28 SSE 2/7 39/24/32/+5/0.12/T/092/15 37 WNW 2/8 24/12/18/-9/0/0/616/100 59 WNW Aerovane 62 MPH WNW 2/9 41/20/31/+4/0/0/279/45 47 SSW Aerovane 48 MPH SSW 2/10 44/32/38/+11/0/0/546/88 31 WSW 2/11 35/21/28/+1/0/0/618/99 46 W Aerovane 46 MPH W 2/12 morning low 16 deg; normal now 20 deg. February sunshine is far above normal with 65% thru the 11th.. The normal for February is 47% NEW DAILY RECORDS FOR MONTH OF FEBRUARY 2004 TO DATE: NONE 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: Robert Skilling