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watch_warning_criteria [2017/04/15 01:48] forsythsnow |
watch_warning_criteria [2017/04/15 01:56] forsythsnow |
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| * Blizzard Warning - Issued up to 36 hours before a potential blizzard with the probability of occurring at 80% or greater. A blizzard is defined as frequent wind gusts exceeding 35mph with heavy snowfall reducing visibility to less than 1/4 mile for at least 3 hours. | * Blizzard Warning - Issued up to 36 hours before a potential blizzard with the probability of occurring at 80% or greater. A blizzard is defined as frequent wind gusts exceeding 35mph with heavy snowfall reducing visibility to less than 1/4 mile for at least 3 hours. | ||
| === Freezing Rain === | === Freezing Rain === | ||
| - | * Freezing Rain Advisory - | + | * Freezing Rain Advisory - Issued within 36 hours of an ice event that has at least an 80% chance of occurring, but in which the threat does not exceed warning criteria. |
| - | * Ice Storm Warning - | + | * Ice Storm Warning - Issued within 36 hours of an ice event that has at least an 80% chance of occurring, in which 1/4"+ of freezing rain is possible. |
| === Wind Chill === | === Wind Chill === | ||
| - | * Wind Chill Watch - Issued 12 - 48 hours before a time in which there is a 50% or greater chance the wind chill could be -10F or below. | + | * Wind Chill Watch - Issued 12 - 48 hours before a time in which there is a 50% or greater chance where the wind chill could be -10F or below. |
| - | * Wind Chill Advisory - | + | * Wind Chill Advisory - Issued within 36 hours before a time in which there is an 80% or greater chance of where the wind chil could be between 5F and -10F. |
| - | * Wind Chill Warning - | + | * Wind Chill Warning - Issued within 36 hours before a time in which there is an 80% or greater chance of where the wind chil could be -10F or below. |
| ===== GSP Greenville Spartanburg ===== | ===== GSP Greenville Spartanburg ===== | ||
| ===== HUN Huntsville ===== | ===== HUN Huntsville ===== | ||
