This Excel 2K (should work in '97 and .NET also) spreadsheet will aid the GM in creating random weather "patterns" for their gaming adventures. It uses the formulas and tables from GM Law. Through true weather "patterns" are not created by this spreadsheet, it will create fairly decent weather for a given day in a given area. Some of the features are:

• Custom Calendar and Seasons
• Daily tracking of weather
• Best attempt to prevent inappropriate weather (blizzards on a hot day)
• Carry over of extreme heat or cold (as defined by the prior days rolls)
• Carry over multi-day weather (a 4 day monsoon)
• Able to regenerate a days weather, and properly update the weather history