BLUE HILL METEOROLOGICAL OBSERVATORY MILTON, MASSACHUSETTS ELEVATION 635 FEET, 10 MILES SSW OF BOSTON, MA DAILY DISCUSSION AND CLIMATE SUMMARY THURSDAY, JUNE 6, 2013 ALL TIMES ARE IN EASTERN STANDARD TIME HIGH CLOUDS INCREASING TODAY AHEAD OF TROPICAL SYSTEM, ANDREA IN GULF TODAY MOVING NORTH-NORTHEASTWARD Andrea was named late Wednesday in the Gulf of Mexico west of Florida and was moving into the Florida Panhandle with 60 MPH sustained winds and lowest pressure of 994 mbs as of early this afternoon. Today's observations: 7 A.M. Weather: Broken altocumulus translucidus, overcast cirrus, few patches of dense cirrus distant S-SW, overcast partly thin Temperature: 60F; Dew Point: 53F; Wind: SW at 6 kts, Sea-level pressure: 30.20 ins. Hg, rising Visibility: 50 miles, except 30 miles NE, 70 miles WNW-NW, light distant haze 6-hr min. temp: 54F BHO SA 1155 E120 BKN 220 BKN 250 OVC 50 226/60/53/2206/020/ FEW PTCHS DNS CI DSNT S-SSW OVC PTLY THN K LYR ALG HRZN DSNT S-SW VSBY NE 30 WNW-NW 70 LGT DSNT HZ/ 8/031 53010 10060 20054 10 A.M. Weather: High dense overcast cirrostratus and cirrus, overcast partly thin, breaks in overcasst NNE-S, cumulus forming NE-S-WSW Temperature: 70F; Dew Point: 49F; Wind: S at 6 kts, Sea-level pressure: 30.19 ins. Hg, falling then rising slightly Visibility: 55 miles, distant haze BHO SA 1455 E250 OVC 55 222/70/49/1706/019/ CU FRMG NE-SE-WSW OVC PTLY THN BINOVC NNE-S DSNT HZ 8/107 55004 1 P.M. Weather: Scattered cumulus and strocumulus cumulogenitus, dense cirrostratus, overcast, ltostratus layer advancing, from S-SW, cumulus all quadrants Temperature: 71F; Dew Point: 46F; Wind: SSE at 11 kts, Sea-level pressure: 30.15 ins. Hg, falling then more rapidly Visibility: 55 miles, distant haze 6-hour max. temp: 74F BHO SA 1755 50 SCT 120 SCT E200 OVC 55 209/71/46/1611/015/ CU/SCCU AS ADVCNG LYR S-SW DNS CS OVC BINOVC DSNT SE-SSE DSNT HZ/ 8/417 58013 10074 20060 WEATHER SUMMARY FOR WEDNESDAY, JUNE 5, 2013 TEMPERATURE (DEGREES F) MAX.....73 NORMAL.....72 MIN.....51 NORMAL.....54 MEAN....62 NORMAL.....63 DEPARTURE FROM 30-YEAR NORMAL....................-1 TOTAL DEPARTURE FOR THE MONTH...................+30 [+5.8 DEGREES/DAY] HEATING DEGREE DAYS TOTAL HEATING UNITS FOR YESTERDAY.............3 DEPARTURE..........-1 TOTAL HEATING UNITS FOR THE MONTH.............9 DEPARTURE.........-13 TOTAL HEATING UNITS FOR THE SEASON.........5743 DEPARTURE........-582 TOTAL HEATING UNITS LAST SEASON TO DATE....4939 DIFFERENCE.......+804 PEAK GUST AND AVERAGE WIND SPEED (MPH) PEAK WIND GUST FOR YESTERDAY...............20 SSW AT 8:13 P.M. AERO....................21 S AT 6:08 P.M. ASOS....................21 SSW AT 8:13 P.M. DAVIS...................20 SSW AT 5:18 P.M. RMY: 22 FASTEST MILE FOR YESTERDAY.................16 S AT 6:07 P.M. MAXIMUM 2-MINUTE ASOS AVERAGE..............16 S AT 6:07 P.M. MAXIMUM 2-MINUTE DAVIS AVERAGE.............15 S AT 6:07 P.M. AVERAGE WIND SPEED AND DIRECTION..........8.7 S ASOS...................8.7 DAVIS..................7.6 W [270 deg] PRECIPITATION (INCHES) THROUGH THIS MORNING (EST) TOTAL PRECIPITATION 24 HRS ENDING 7 A.M....0.00 DEPARTURE...........-0.17 ASOS..............0.00 TOTAL PRECIPITATION FOR THE MONTH..........0.47 DEPARTURE...........-0.36 ASOS..............0.43 TOTAL PRECIPITATION FOR THE YEAR..........20.56 DEPARTURE...........-2.93 ASOS..............N/A* *ASOS malfunctioned during storm on 2/8-9, leading to erroneous totals PRELIMINARY CLIMATE SUMMARY FOR JUNE 2013 CALENDAR DAY DATA DATA REPORTED: DATE: MAX/MIN/MEAN/DEP/PRECIP/SUN(MIN.)/SUN(%)/ PEAK GUST/AERO GUST AERO: Aerovane wind recording system gust RMY: RMY = R.M. Young wind gust recording system added 8/9/2011 TSTM: Thunderstorm day (thunder heard some time during day) ....: Data not yet available, records not finalized 6/1 90/69/80/+18/0.00/.../.. 30 SW AERO 32 MPH SW RMY 33 6/2 86/64/75/+13/T/.../.. 42 SSW AERO 44 MPH SSW RMY 46 6/3 75/57/66/+4/0.47/.../.. 22 WNW AERO 22 MPH SSW RMY 22 6/4 70/48/59/-4/0.00/.../.. 25 W AERO 25 MPH W RMY 25 6/5 73/51/62/-1/0.00/.../.. 20 SSW AERO 21 MPH S RMY 22 6/6 morning low temp: 54F; the normal low is now 54F DAILY RECORDS FOR JUNE 2013 6/1 - TIED DAILY RECORD MAXIMUM TEMPERATURE OF 90F; previous record of 90F set in 1937 6/1 - NEW DAILY RECORD HIGH MINIMUM TEMPERATURE OF 69F; surpasses previous record of 68F set in 1944, 1987 DAILY EXTREMES Temperature and precipitation records back to 1885, and wind records back to 1940 (e = estimated): RECORDS FOR JUNE 6 HIGH 95F IN 1925 LOW 42F IN 1885, 1894, 1920, 1945 PRECIP 3.61 INS IN 2000 PEAK GUST 58 MPH NE IN 2000 RECORDS FOR JUNE 7 HIGH 93F IN 1999 LOW 40F IN 1932 PRECIP 4.01 INS IN 2006 PEAK GUST 58 MPH NE IN 1982 TODAY'S REPORT PREPARED BY: Robert Skilling/ Mark Medlinskas/Marc Douglas