pf2e.fyi
From Pathfinder #177: Burning Tundra, which isn't enabled.

Jesseri The Hailstorm

CREATURE 10
Perception +23
Languages Common, Hallit
Skills Mammoth Lord Lore +16, Medicine +23, Nature +23, Performance +20, Religion +21, Society +18, Survival +21
Str +0, Dex +4, Con +5, Int +2, Wis +5, Cha +2
Items Staff of Divination, Hide Armor, Healing Potion (Moderate)

AC 29; Fort +21, Ref +20, Will +21
HP 150; Resistances cold 10

Speed 25 feet
Melee Staff +19 (two hand d8), Damage 1d4+6 bludgeoning
Primal Spontaneous Spells DC 29, attack +21; 5th (2 slots) Cone of Cold, Wall of Ice; 4th (2 slots) Hydraulic Torrent, Ice Storm; 3rd (2 slots) Lightning Bolt, Wall of Wind; 2nd (3 slots) Create Food, Endure Elements, Water Walk; 1st (4 slots) Air Bubble, Create Water, Gust of Wind, Heal; Cantrips (5th) Electric Arc, Light, Ray of Frost, Read Aura, Stabilize
Rituals 5th Summerland Spell; 3rd Reincarnate
Child of Winter

When Jesseri Casts a Spell that deals damage and doesn't have a duration, she deals additional cold damage that's equal to the spell's rank and ignores cold resistance 10.

Signature Spells

Jesseri can heighten Heal and Lightning Bolt to any level for which she has an available spell slot.

Pathfinder #177: Burning TundraOGL