The Hazardous Weather Outlook issued three times daily by the Warning and Forecast Office in Birmingham, AL, is intended to provide plain language information on weather phenomena that are considered hazards. The Hazardous Weather Outlook is a planning tool for anyone interested in the weather problem of the day. The threshold is the potential for a particular weather phenomena to require an outlook, watch, warning, or advisory from the National Weather Service.
Convective Weather -
Severe thunderstorms capable of producing three-quarter inch or larger
hail, damaging winds (wind speeds 58 mph or higher), and tornadoes
will be discussed in the HWO. In addition, strong thunderstorms
capable of producing hail, wind gusts of 35 to 57 mph, and frequent
cloud-to-ground lightning will also be discussed. When conditions
are favorable for localized microbursts (pulse summertime storms),
information regarding this type of thunderstorm will also be included.
Winter Weather - Snow,
freezing rain, sleet, or a mixture of these weather phenomena that
may lead to a winter weather outlook, winter storm watch, winter
storm warning, or winter weather advisory will be included.
Non Precipitation -
Weather hazards such as strong winds, excessive heat or cold, and
dense fog will be included in the HWO.
Fire Weather - Extremely
dry and windy conditions that result in high fire danger situations
will be included.
Flooding - Flood hazards
such as minor flooding, flash flooding, and long duration river
flooding will be in the HWO.
Non-hazardous Weather
- Non-hazardous weather phenomena will not routinely be discussed
in the HWO. These weather phenomena do not require the issuance
of an outlook, watch, warning, or advisory. Examples include widespread
rain where flooding is not expected, general thunderstorms, showers,
20 mph winds, fog where visibilities are 1 mile or greater, light
snow resulting in little or no accumulation, etc.
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