2007-01-24: ALB upper air data from FSL's server at NOAA in Boulder, CO. 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 9.5 300 38 57 | -6.4 ` : 11500 9.1 56 | -4.4 ` : 11000 8.8 56 | -2.4 ` : 10500 8.4 55 | -0.3 ` : 10000 8.1 54 | 1.8 ` : 9500 7.8 54 | 3.8 ` : 9000 7.4 300 32 53 | 5.9 ` : 8500 6.5 52 | 6.9 ` : 8000 5.5 305 27 50 | 7.8 ` : 7500 2.1 44 | 4.3 ` : 7000 -0.4 310 24 40 | 2.5 (High: 40) :` 6500 -0.6 40 | 4.8 :` 6000 -0.8 310 21 39 | 7.2 :` 5500 -1.0 39 | 9.5 :` 5000 -1.2 39 | 11.8 : ` 4500 -1.4 38 | 14.2 : ` 4000 -1.6 305 22 38 | 16.3 (CB: 4200) : ` 3500 -2.1 37 | 18.2 : ` 3000 -2.5 295 23 36 | 20.1 : ` 2500 -2.9 36 | 22.0 : ` 2000 -3.4 290 22 35 | 23.9 : ` 1500 -3.7 34 | 25.9 : ` 1000 -4.1 270 18 33 | 27.9 : ` 500 -4.7 33 | 29.6 : ` === NWS Regional Summary - 400 AM EST WED JAN 24 2007 === A cold front will slowly work its way south across our region during this afternoon and early evening. This frontal passage does not have much moisture to interact with so just a period of clouds and perhaps a few flurries are expected with its passage. Otherwise, skies will be partly to mostly sunny today. Behind the front, the coldest air of the season will affect southern New England by late in the day Thursday and last through Friday night with wind chills -10 to -15 near the coast and -15 to -25 over the interior and higher elevations. There will be a chance of snow showers Thursday as well. Record cold will be possible Thursday night and Friday. Be prepared to bundle up because the chances of frostbite will increase dramatically. === The weather observed at WORCESTER, MA at 07:54 AM EST was: === The skies were clear. The prevailing visibility was 10 miles. Temperature: 25F ( -4C) Dewpoint: 16F ( -9C) Relative Humidity: 68% Winds from the W (270 degs) at 15 mph. Pressure: 1012.3 millibars. Altimeter:29.85 inches of mercury. === ORH Terminal Aerodrome Forecast issued 24-Jan-2007 06:20 EST === 7am: 27012kt P6sm Few040 Sct100 1pm: 27012kt P6sm Bkn035 5pm: 31007kt P6sm Few040 Sct250