0 1 8 , ▁the ▁Baltimore / W ashington , ▁D . C . ▁forec ast ▁office ▁upgrad ed ▁a ▁Special ▁Marine ▁Warning ▁to ▁P DS ▁status ▁as ▁a ▁g ust ▁front ▁approached ▁Ch es ape ake ▁Bay . ▁ ▁P DS ▁Special ▁We ather ▁Stat ement ▁ ▁P DS ▁special ▁weather ▁statements ▁are ▁usually ▁for ▁issued ▁by ▁the ▁N WS ▁for ▁ha z ards ▁that ▁do ▁not ▁have ▁a ▁specific ▁code ▁of ▁their ▁own , ▁and ▁pose ▁an ▁exception ally ▁high ▁risk ▁of ▁damage ▁and ▁loss ▁of ▁life . ▁ ▁The ▁P DS ▁Special ▁We ather ▁Stat ement ▁below ▁was ▁issued ▁by ▁the ▁National ▁We ather ▁Service ▁in ▁Buff alo , ▁New ▁York ▁on ▁December ▁ 1 1 , ▁ 2 0 1 3 , ▁regarding ▁extreme ▁amounts ▁of ▁lake ▁effect ▁snow ▁to ▁impact ▁the ▁defined ▁area . ▁The ▁same ▁office ▁issued ▁a ▁P DS ▁Special ▁We ather ▁Stat ement ▁for ▁h urr icane - force ▁wind s ▁forec ast ▁to ▁hit ▁the ▁Buff alo ▁area ▁on ▁February ▁ 2 4 , ▁ 2 0 1 9 . ▁ ▁P DS ▁T orn ado ▁Watch ▁ ▁P DS ▁torn ado ▁watch es ▁are ▁issued ▁when ▁there ▁is ▁a ▁higher ▁than ▁normal ▁risk ▁of ▁multiple ▁strong ▁to ▁violent ▁torn ado es ▁– ▁especially ▁those ▁that ▁are ▁predicted ▁to ▁be ▁long - track ▁in ▁nature , ▁with ▁path ▁lengths ▁of ▁more ▁than ▁ 2 0 ▁miles ▁– ▁in ▁the ▁watch ▁area ▁( us ually ▁amount ing ▁to ▁damage ▁consistent ▁with ▁EF 4 ▁or ▁EF