2004-01-10: ALB upper air data from David J. Knight's server at SUNY Albany. Forecast max temp from AVN MOS for Concord NH from ohio-state.edu. === Interpolations from ALB data - temps:deg. F, altitudes:feet MSL === MSL *TI* Wdir@kts trig VirT 2.1 degrees/division ("`": Dry Adiabatic) ----- ---- -------- ---- . ---- ----------------------------------------- 12000 26.8 300 38 50 |-12.3 ` : 11500 24.9 47 |-13.1 ` : 11000 22.9 43 |-13.9 ` : 10500 21.0 40 |-14.8 ` : 10000 19.0 36 |-15.6 ` : 9500 18.6 320 26 35 |-13.8 ` : 9000 17.9 320 25 34 |-12.3 ` : 8500 17.1 33 |-11.0 ` : 8000 16.3 325 20 31 | -9.9 ` : 7500 15.3 30 | -8.9 ` : 7000 14.4 335 14 28 | -8.0 ` : 6500 13.4 26 | -7.0 ` : 6000 12.5 350 18 24 | -6.1 ` : 5500 11.5 23 | -5.1 ` : 5000 9.9 20 | -5.4 (CB: 5200) ` : 4500 7.9 340 24 16 | -6.3 ` : 4000 6.1 340 24 13 | -6.9 ` : 3500 3.1 7 | -9.6 ` : 3000 -1.1 355 16 1 |-14.5 (High: 2) : ` 2500 -2.5 350 17 -2 |-14.3 : ` 2000 -3.7 345 14 -4 |-13.7 : ` 1500 -4.9 -6 |-13.2 : ` 1000 -6.0 330 9 -8 |-12.6 : ` 500 -6.5 335 7 -9 |-10.8 : ` === NWS Regional Summary - 653 AM EST SAT JAN 10 2004 === Bitter cold continues over southern New England along with ocean effect snow for Cape Cod. Icy high pressure over Quebec and the midwest continued to generate northerly winds out of northern Canada, spreading an arctic chill across southern New England. Records for low temperatures and low maximum temperatures have been falling by the wayside since yesterday, and more records will likely be set today. Because the wind has continued unabated overnight, windchills have been reaching dangerously low levels, some as low as 30 below zero. The frigid air over the warmer ocean has been producing ocean effect snow showers over the outer Cape. At 7 pm, temperatures were in the 10 to 15 above over Cape Cod and the islands, and zero to 10 below zero elsewhere. Today, the arctic chill is expected to continue. Despite abundant sunshine, temperatures will only rise into the single digits, except reaching into the teens over Cape Cod and the islands. These frigid temperatures combined with a brisk north to northwest wind will yield dangerously cold wind chills of minus 15 to minus 25, especially this morning. The ocean effect snow showers should taper to flurries this afternoon. 2 to 5" of accumulated snow is expected over outer Cape Cod, with an inch or less expected over the islands. A repeat performance of cold and low windchill is expected tonight, with the northerly winds persisting and overnight lows expected to again fall below zero inland. The Quebec high is expected to move southward over the mid Atlantic and southeast states Sunday, which will help ease the arctic chill by shifting the winds to the southwest. However, the warmer air flowing over the arctic airmass already in place will produce a period of snow Sunday night into Monday, with some accumulation expected. Temperatures Monday may approach the freezing mark, however it will be short lived as another surge of arctic air spreads across the northeast later Tuesday. This reinforcement of the arctic air may be accompanied by snow squalls Tuesday afternoon. === The weather observed at WORCESTER, MA at 07:54 AM EST was: === The skies were clear. The prevailing visibility was 10 miles. Temperature: -6F (-21C) Dewpoint: -17F (-27C) Relative Humidity: 59% Winds from the NW (310 degs) at 14 mph. Pressure: 1026.0 millibars. Altimeter:30.21 inches of mercury. === ORH Terminal Aerodrome Forecast issued 10-Jan-2004 06:32 EST === 7am: 30008kt P6sm Skc 9am: 33010g20kt P6sm Skc 6pm: 32008kt P6sm Skc