Weather Reference

A & A Cooking generates local weather from pressure, humidity, cloud cover, precipitation, storm energy, wind, and temperature offsets. The current v0.4.0-alpha.1 playtest build exposes nine named weather conditions for commands and testing.

Named weather conditions

Command name	Display name	Pressure	Humidity	Clouds	Precipitation	Storm energy	Wind	Temperature offset
`dry`	Dry	1022 hPa	38%	18%	0%	0%	3 m/s	+0.5 °C
`drizzle`	Drizzle	1014 hPa	70%	68%	12%	5%	5 m/s	-0.5 °C
`light`	Light	1008 hPa	78%	78%	32%	12%	7 m/s	-1.5 °C
`moderate`	Moderate	1004 hPa	82%	84%	60%	25%	8 m/s	-2.5 °C
`heavy`	Heavy	1003 hPa	88%	92%	85%	40%	9 m/s	-4.0 °C
`rumbling`	Rumbling	1004 hPa	85%	86%	62%	55%	8 m/s	-3.0 °C
`thunderstorm`	Thunderstorm	1001 hPa	90%	94%	82%	72%	9 m/s	-4.5 °C
`severe`	Severe Thunderstorm	998 hPa	94%	98%	88%	88%	11 m/s	-6.0 °C
`extreme`	Extreme Thunderstorm	996 hPa	99%	100%	98%	99%	16 m/s	-8.0 °C

These names are accepted by /aacooking weather set <condition> and /aacooking weather tp <condition>.

Precipitation states

State	Threshold
Dry	Below 5% precipitation intensity
Drizzle	5% or higher
Light	20% or higher
Moderate	45% or higher
Heavy	75% or higher
Thunderstorm	Storm energy reaches 65% or higher

Thunderstorm severity

Storms progress through None, Rumbling, Thunderstorm, Severe, and Extreme severity. Rumbling storms can produce distant thunder without lightning strikes. Thunderstorm, Severe, and Extreme conditions can generate regional lightning.

Lightning behavior becomes more frequent and more likely to use stronger strike profiles as severity increases. The weather system evaluates lightning in 256 block regions around players.

Weather Chart

The Weather Chart (aandacooking:weather_chart) is a dynamic map style item that visualizes the regional weather field in the Overworld.

When first carried, it initializes a map centered on the player at map scale 4. The chart samples a 16 by 16 weather grid across the map and redraws its overview once per second.

The chart uses weather colors for precipitation and pressure, then draws pressure band boundaries as isobars. Strong storm energy is shown distinctly from ordinary precipitation.

Snow accumulation and melting

Snow surfaces use the calculated ambient air and surface temperatures rather than only vanilla biome weather.

Surface state	Temperature
Frozen	-0.5 °C or colder
Marginal	Between -0.5 °C and 0.5 °C
Melting	0.5 °C or warmer

For snow to accumulate, local weather must be precipitating, ambient air must be 0 °C or colder, and strong block light must not prevent sticking. Colder surfaces accumulate more reliably.

Existing snow layers can melt when the surface is above freezing or when strong nearby block light is present. The controller updates exposed columns around players once per second.

Local rendering

A & A Cooking keeps vanilla global rain and thunder disabled in the Overworld and synchronizes the local weather field to players. Client rendering then uses that local state for precipitation, clouds, and related weather visuals.