WW2010
University of Illinois

WW2010
 
  welcome
 
> online guides
 
  archives
 
  educational cd-rom
 
  current weather
 
  about ww2010
 
  index

Online Guides
 
  introduction
 
  meteorology
 
  remote sensing
 
  reading maps
 
> projects, activities

Projects, Activities
 
  introduction
 
  open-ended projects
 
  classroom activities
 
> teacher guides

Teacher Guides
 
  introduction
 
  pressure
 
  air masses
 
  precipitation
 
  midlatitude cyclones
 
  universal time coord
 
  observation symbols
 
  weather symbols
 
> forecasting temps
 
  forecasting precip

User Interface
 
  graphics
> text

NOTE: We've guessed that you're not using a client that supports colored tables and have tried to compensate. Low graphics mode looks much better on clients that do... we recommend switching to Netscape 3.0 or Microsoft Internet Explorer.
.
Forecasting Temperatures
scaffolding activity teacher's guide

Weather Scenario Cloud
Cover
Winds Temperature
Advection
Snow
Cover
Your Thoughts
Example Scenario:
Night time forecast, cloud cover, no winds, no snow cover.
HLNoneNone No winds will prevent warm air from mixing downward but cloud cover will keep temps warm.
Scenario 1:
Day time forecast, cloudy skies with calm winds, no significant temperature advection and no snow cover.
L None None None The clouds should keep the temperatures down.
Scenario 2:
Night time forecast, snow cover, clear skies, no wind.
L L None L Clear skies, calm winds and snow cover all contribute to maximum radiational cooling of the earth's surface. It is during such conditions that the coldest temperatures of the year are typically attained.
Scenario 3:
Night time forecast, cloudy skies, no snow cover, windy and warm advection.
H H H None Clouds will keep heat from escaping, winds will allow warmer air to mix down towards the surface, and warm advection will bring an inflow of warmer air. All these factors contribute to warmer temperatures.
Scenario 4:
Day time forecast, cloudy skies, windy, cold advection and no snow cover.
L L L None Cloudy skies and windy conditions will help to keep temperatures lower, especially when the winds are advecting in colder air (cold advection). All three factors contribute to lower temperatures.



weather symbols
Terms for using data resources. CD-ROM available.
Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.

forecasting precip