2007-03-31: ALB upper air data from David J. Knight's server at SUNY Albany. 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 14.6 310 52 82 | 18.6 ` : 11500 13.8 81 | 19.8 ` : 11000 13.0 79 | 21.0 ` : 10500 12.2 78 | 22.2 `(CB:10500) : 10000 11.3 315 51 76 | 23.3 ` : 9500 10.2 315 45 74 | 24.0 ` : 9000 8.9 320 39 72 | 24.3 ` : 8500 7.6 70 | 24.6 ` : 8000 6.6 320 35 68 | 25.5 ` : 7500 5.7 66 | 26.6 ` : 7000 4.9 325 30 65 | 27.7 ` : 6500 4.0 63 | 28.8 ` : 6000 2.9 330 26 61 | 29.4 ` : 5500 1.1 58 | 29.0 `: 5000 -0.6 56 | 28.5 (High: 56) :` 4500 -2.3 350 22 53 | 28.2 : ` 4000 -3.4 350 16 51 | 28.9 : ` 3500 -5.2 48 | 28.3 : ` 3000 -7.6 355 14 43 | 26.6 : ` 2500 -9.6 355 14 40 | 25.7 : ` 2000 -11.5 25 22 36 | 25.0 : ` 1500 -12.0 35 | 26.7 : ` 1000 -12.5 30 13 34 | 28.5 : ` 500 -13.0 30 8 34 | 30.3 : ` === NWS Regional Summary - 551 AM EDT SAT MAR 31 2007 === Skies were mostly clear overnight with lows ranging from the 20s in the interior where winds were light, to the 30s elsewhere. Today will again show plenty of brilliant sunshine but be 5 to 10° cooler than yesterday. Highs will be in the 50s except 40s Cape Cod. Tonight will be clear and cool. Lows are forecast to be in the 20s except 30s some urban centers. Sunday will start out sunny but clouds will increase during the afternoon and showers may arrive in the Connecticut river valley late in the day. Highs will be near 50 along parts of the coast, ranging upward to around 60 parts of the interior. Rain arrives Sunday night and may change to mixed sleet or snow in south central New Hampshire sometime Monday. High pressure moving into New England later today will depart for the offshore waters tomorrow. A strong warm front just south of New England Sunday night will see a weak wave of low pressure develop on it. Its eastward departing wake later Monday will be filled with colder air as wintry precipitation makes a bid to return to southern New England this coming week. === The weather observed at WORCESTER, MA at 07:54 AM EST was: === The skies were mostly clear. The prevailing visibility was 10 miles. Temperature: 37F ( 3C) Dewpoint: 3F (-16C) Relative Humidity: 23% Winds from the NE (030 degs) at 8 mph. Pressure: 1024.1 millibars. Altimeter:30.22 inches of mercury. === ORH Terminal Aerodrome Forecast issued 31-Mar-2007 06:20 EST === 7am: 36009kt P6sm Sct250 1pm: 04005kt P6sm Sct250 7pm: 21005kt P6sm Skc 1am: 25005kt P6sm Skc