Blast the target with a frigid wind, dealing (82.5% of attack power) Frost damage to that foe, and (70.125% of attack power) Frost damage to all other enemies within 10 yards, infecting all targets with Frost Fever.
Hotfix (2013-03-12):Howling Blast had its area-of-effect splash damage equal to 50% of the damage taken by the primary target (down from 65%).
Patch 5.2.0(2013-03-05): Now deals 8% more damage to the primary target. Damage to other enemies in the area-of-effect remains unchanged.
Hotfix (2012-10-01):Howling Blast and Unholy Blight now properly spread their diseases to the primary target as well as other targets within range.
Patch 5.0.4(2012-08-28): Range increased from 20 to 30 yd. Now also infects all targets with Frost Fever.
Patch 4.1.0(2011-04-26): Damage has been increased by 20%. To compensate, the area-of-effect splash now does 50% of the single-target damage, down from 60%. The net result of this change leaves the area-of-effect damage roughly the same as 4.0.6 numbers. In addition, Howling Blast now has a facing requirement.
Patch 4.0.1(2010-10-12): Cost reduced to one frost rune, down from one frost and one unholy.
Patch 3.1.0(2009-04-14): Base damage and scaling doubled.This ability no longer deals bonus damage to targets with Frost Fever. 8-second cooldown. Swapped positions with [Hungering Cold] in the talent tree.
Patch 3.0.8a(2009-01-27): The 5 second cooldown will now display correctly.