Mesoscale Discussions
Mesoscale discussions (MCDs) generally precede a tornado watch or severe thunderstorm watch, by 1–3 hours when possible. Mesoscale discussions are designed to give local forecasters an update on a region where a severe weather threat is emerging and an indication of whether a watch is likely and details thereof, as well as situations of isolated severe weather when watches are not necessary. MCDs contain meteorological information on what is happening and what is expected to happen in the next few hours, and forecast reasoning in regard to weather watches. Mesoscale discussions are often issued to update information on watches already issued, and sometimes when one is to be canceled. Mesoscale discussions are also issued for winter weather and heavy rainfall events.
Read more about this topic: Storm Prediction Center
Famous quotes containing the word discussions:
“So in your discussions of the nuclear freeze proposals, I urge you to beware the temptation of pride—the temptation blithely to declare yourselves above it all and label both sides equally at fault, to ignore the facts of history and the aggressive impulses of an evil empire, to simply call the arms race a giant misunderstanding and thereby remove yourself from the struggle between right and wrong, good and evil.”
—Ronald Reagan (b. 1911)