2007-01-20: 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   8.8  305  41   47 |-16.8 `         :
11500   7.9            45 |-15.7  `        :
11000   7.1            44 |-14.5    `       :
10500   6.3            42 |-13.4      `      :
10000   5.1            40 |-12.9       `     :
 9500   3.3            37 |-13.4         `   :
 9000   1.5  305  42   34 |-13.9           ` :
 8500   0.6            32 |-12.9             :
 8000   0.4  310  42   32 |-10.6              `:
 7500   0.1            31 | -8.4 (High: 31)     :
 7000  -0.1  310  44   31 | -6.2                  :
 6500  -0.4            31 | -4.0                   :`
 6000  -0.6  310  45   31 | -1.7                     :
 5500  -0.9            30 |  0.5                      :`
 5000  -1.1  310  47   30 |  2.7                       : `
 4500  -1.4            29 |  4.9                         : `
 4000  -1.6  310  45   29 |  7.2                          : `
 3500  -1.8            29 |  9.6 (CB: 3600)                 : `
 3000  -1.9  310  39   28 | 12.0                              : `
 2500  -2.1            28 | 14.4                               :  `
 2000  -2.2  300  27   28 | 16.8                                 : `
 1500  -2.4            28 | 19.1                                  :  `
 1000  -2.6  305  18   27 | 21.5                                    :  `
  500  -2.7            27 | 23.9                                     :   `

=== NWS Regional Summary - 528 AM EST SAT JAN 20 2007 ===
Temperatures at daybreak were starting out a little warmer than normal, 20s to
around 30, but with a gusty west wind, it was still feeling cold. A few
flurries occurred overnight in the interior under partly cloudy skies. Strong
west winds of 40 to 45 mph were already blowing from the Berkshires to white
plains New York into central Pennsylvania. Winds will steadily increase in our
area today in advance of strong cold front moving southeastward through New
England and New York state. Flurries and scattered brief heavier snow showers
are possible this morning into midday in advance of the front. Rather strong
northwest winds are expected this afternoon as sunshine increases in response
to the influx of dry polar cold. The mercury will be tumbling through the 20s.
Tonight will be bitterly cold with strong winds this evening letting up during
the night. Under clear skies, low temperatures early Sunday morning should
range from the single digits north of the Mass Turnpike to the teens
elsewhere. Sunday will see temperatures recover to around 30 in the afternoon
with plenty of bright sunshine but brisk winds. Intense low pressure over the
Maritimes will begin weakening late tonight. High pressure will build into New
England Sunday afternoon.

=== The weather observed at WORCESTER, MA at 07:54 AM EST was: ===
  The weather reported was light snow.
  The skies were cloudy.  The prevailing visibility was 7 miles.
  Temperature: 25F ( -4C)  Dewpoint:  14F (-10C)  Relative Humidity:  63%
  Winds from the W  (270 degs) at 18 mph.
  Pressure: 1004.7 millibars.  Altimeter:29.63 inches of mercury.
=== ORH Terminal Aerodrome Forecast not available. ===