Positive storms (*) clear waste and replenish dirt, resources and water, neutral storms (=) equalize terrain and have a 10% chance or reducing era of pieces, and negative storms (!) cause damage.

REPLENISHMENT LEVELS OF POSITIVE STORMS AND DANGER LEVELS OF NEGATIVE STORMS

Terrain	Dirt Increase	Water Increase	Resource Increase	Minimum Dirt Increase	Minimum Water Increase	Minimum Resource Increase	Chance of Damage
Barren	n/a	n/a	n/a	1	1	1	6%
Bosk	10%	10%	10%	5	5	5	3%
Desert	25%	10%	10%	15	1	1	9%
Field	Same as meadow or plain.	Same as meadow or plain.	Same as meadow or plain.	Same as meadow or plain.	Same as meadow or plain.	Same as meadow or plain.	Same as meadow or plain.
Forest	10%	10%	10%	5	5	5	6%
Jungle	10%	10%	10%	5	5	5	9%
Lode	10%	10%	25%	1	1	15	3%
Marsh	10%	10%	10%	5	5	5	6%
Meadow	10%	10%	10%	5	5	5	3%
Ocean	10%	25%	10%	1	15	1	9%
Plain	10%	10%	10%	5	5	5	3%
Quarry	Same as lode.	Same as lode.	Same as lode.	Same as lode.	Same as lode.	Same as lode.	Same as lode.
Sea	10%	10%	10%	5	5	5	6%
Shoal	10%	10%	10%	5	5	5	3%
Steppe	10%	10%	10%	5	5	5	6%
Swamp	10%	10%	10%	5	5	5	6%
Wasteland	0%	0%	0%	n/a	n/a	n/a	n/a
Wastewater	0%	0%	0%	n/a	n/a	n/a	n/a