National Weather Service United States Department of Commerce

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Philadelphia/Mt Holly

Weather Forecast Office

WFO PHI Watch/Warning/Advisory Product Criteria

Weather.gov > Philadelphia/Mt Holly > WFO PHI Watch/Warning/Advisory Product Criteria
WFO PHI Weather Product Criteria

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-- Convective:
  Tornado Warning
  Severe Thunderstorm Warning
  Special Weather Statement

-- Flooding:
  Flash Flood Warning
  Flood Warning
  Flood Advisory
  Flood Watch

-- Heat:
  Extreme Heat Watch or Warning
  Heat Advisory

-- Wind:
  High Wind Watch or Warning
  Wind Advisory

-- Fog:
  Dense Fog Advisory
  Freezing Fog Advisory

-- Frost/Freeze:
  Freeze Season Begins
  Freeze Season Ends

-- Fire Weather:
  Fire Weather Watch or
Red Flag Warning
NWS Philadelphia/Mount Holly

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to see the criteria for issuance
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