2008-01-24: ALB upper air data from Kevin Ford's server at Texas A&M. Forecast max temp from AVN MOS for Fitchburg MA from nws.noaa.gov. === Interpolations from ALB data - temps:deg. F, altitudes:feet MSL === MSL *TI* Wdir@kts trig VirT 2.1 degrees/division ("`": Dry Adiabatic) ----- ---- -------- ---- . ---- ----------------------------------------- 12000 14.7 255 61 55 | -8.4 ` : 11500 13.9 54 | -7.1 ` : 11000 12.6 52 | -6.8 ` : 10500 11.3 49 | -6.5 ` : 10000 10.5 48 | -5.3 ` : 9500 10.0 47 | -3.5 ` : 9000 9.5 255 44 46 | -1.7 ` : 8500 8.8 45 | -0.3 ` : 8000 8.1 250 41 43 | 1.1 ` : 7500 7.4 42 | 2.6 ` : 7000 6.3 260 35 40 | 3.2 ` : 6500 4.6 37 | 2.9 ` : 6000 2.9 265 28 34 | 2.5 ` : 5500 1.2 31 | 2.1 ` : 5000 -0.4 29 | 1.8 (High: 29) :` 4500 -1.7 27 | 2.3 (CB: 4900) : ` 4000 -2.0 275 17 26 | 4.2 : ` 3500 -2.4 26 | 6.3 : ` 3000 -2.8 270 11 25 | 8.3 : ` 2500 -3.1 24 | 10.3 : ` 2000 -3.6 240 9 23 | 12.1 : ` 1500 -4.0 23 | 14.0 : ` 1000 -4.5 205 6 22 | 15.9 : ` 500 -4.9 21 | 17.8 : ` === NWS Regional Summary - 705 AM EST THU JAN 24 2008 === A mostly sunny start to the morning near the south coast, but clouds will slowly increase from north to south this morning, with most cloud cover remaining north of the pike. A few snow showers are possible north of the Massachusetts pike. Most of the snow shower activity should hold off til afternoon. Frigid air will then push across the region tonight with overnight lows from zero to 5 above in northwest Massachusetts and southwest New Hampshire, and single digits across areas away from the coast. Wind chill values will drop to zero to -10° away from the coast, with the lowest readings over the higher terrain of central and western Massachusetts into southern New Hampshire. A cold front will clear the southern New England coast this morning. High pressure will build across the region this afternoon and tonight. An arctic front will push across the region during Thursday, ushering in very cold air late Thursday and Friday. Large high pressure will cross New England Friday and Saturday. Another front will push across the region Sunday, then low pressure will develop south of New England Sunday night. Another high may build east for Monday. === The weather observed at WORCESTER, MA at 07:54 AM EST was: === The skies were mostly clear. The prevailing visibility was 10 miles. Temperature: 16F ( -9C) Dewpoint: 7F (-14C) Relative Humidity: 67% Winds from the SW (230 degs) at 5 mph. Pressure: 1017.8 millibars. Altimeter:30.00 inches of mercury. === ORH Terminal Aerodrome Forecast issued 24-Jan-2008 06:45 EST === 7am: Vrb03kt P6sm Bkn080 9am: Vrb03kt P6sm Bkn040 12pm: 25004kt P6sm Vcsh Ovc035 3pm: 32006kt P6sm Vcsh Ovc025; Tempo 3-6pm: 1sm -shsn Ovc015 8pm: 35006kt P6sm Ovc040 11pm: 34011g20kt P6sm Bkn050 3am: 32014g24kt P6sm Few100