The OPERATIONAL WEATHER ALERT TABLE provides a brief summary of major weather conditions affecting various regions of North America over the 2 to 15 days. When the weather conditions clearly indicate a significant and prolonged weather events there may be some forecasts summaries presented here which cover the next 30 days .
The The OPERATIONAL WEATHER ALERT TABLE is updated every other day and the following information is provided to aid in the comprehension of the various categories on the Grain Weather Alert table
WEATHER INFO/ COVERAGE
Scattered........... 20-40%
Regional............ 40-55%
Widespread....... 55-75%
Extensive........... 75%or more
WEATHER INFO/ INTENSITY
Average........... This term is used to refer to a average of a typical type of weather event listed in the first column ( Rain Wind Snow Heat etc) . So for rain event this would be a typical or average
Notable............ This term is used to refer to a somewhat heavier than normal precipitation rain or temperatures or wind etc
Intense............ This term is used to refer to a weather event that will even bring a short duration of heavy precipitation or high wind cold or heat OR a weather event which is a NOTABLE but will last for a prolonged interval of time.
Extreme......... A weather event of uncommon intensity and/ or duration which may be Record or near record setting event
IMPACT
1 Minor -- a weather event which will have small impact ( hey looks its raining… better slow down or bring an umbrella)
2 Moderate- the weather event which will have a somewhat bigger impact but not all that unusual (better allow for extra travel time).
3 Significant-- a weather event of sufficient intensity or duration which can briefly alter or affect normal operations ( better see if I can leave earlier or later …make contingency plans etc)
4 Major - a weather event of sufficient intensity or duration which will likely provide some interruptions of daily operations regarding People… Businesses …Schools … Organizations … Logistics and Infrastructure. This event will receive moderate attention from the mainstream media.
Most of not all schools cancelled .. Business delayed or closed or closed early extensive airport delays / cancellations Road / highway travel significantly delayed etc. (Better stay home or get a hotel room early …this looks bad)
5 Exceptional-- A weather event of uncommon intensity and/ or duration which may be Record or near record setting event and will likely have a major impact on People… Businesses …Schools … Organizations … Logistics and Infrastructure. This event will receive major attention from the mainstream media… (Hope I have fresh water.. car has full tank of gas.. got some extra cash… Maybe I should get the roof inspected just in case…)
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