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Convective mesoscale discussions are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center based on the National Weather Center in Norman, Oklahoma. [ 1 ] [ 2 ] One type of mesoscale discussion is a meso-gamma mesoscale discussion , which are for tornadoes believed to be at least EF2 on the Enhanced Fujita ...
SPC mesoscale discussions for a high-impact and high-confidence strong tornadoes (EF2+) or winds greater than 100 miles per hour (160 km/h) are called meso-gamma mesoscale discussions. [ 35 ] [ 36 ] Meso-gamma mesoscale discussions are rarely issued by the SPC.
Meso-gamma discussion on May 23, 2024, in parts of TX/OK On May 23, the SPC issued an Enhanced risk over central Nebraska to Western Iowa for the threat of damaging winds. Conditions weren't quite as favorable this day compared to others with dew points only expected to reach the upper 50s °F, creating conditions for high-base supercells ...
A mesoscale discussion may refer to: Mesoscale convective discussion , a forecast concerning thunderstorms issued by the Storm Prediction Center (SPC) Mesoscale precipitation discussion , a forecast concerning precipitation issued by the Weather Prediction Center (WPC)
[16] [17] While the violent EF4 tornado was on the ground, Harry Weinman, a forecaster at the SPC, issued a special meso-gamma mesoscale discussion for the tornado. [18] In the discussion, the SPC stated that radar showed debris was being lofted at least 13,000 feet (4,000 m) into the air and that a vertical rotation of 70 knots (81 mph; 130 km ...
At the same time, the Storm Prediction Center issued a rare meso-gamma discussion for the tornado, citing that the tornado had potential peak winds of up to 170-205 mph with high confidence of the tornado being violent. [27] The tornado maintained low-end EF3 intensity, several trees was snapped and debarked along Seminary Mike Connor Road.
The Weather Prediction Center (WPC), located in College Park, Maryland, is one of nine service centers under the umbrella of the National Centers for Environmental Prediction (NCEP), a part of the National Weather Service (NWS), which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the U.S. Government.
The Storm Prediction Center (SPC) issues Day 1, Day 2, and Day 3 Convective Outlooks depicting forecast areas of general (non-severe) and severe thunderstorm threats across the contiguous United States, along with a text narrative discussion consisting of a plain-language summary of the threat type(s) and timing focused on areas of highest risk ...