|WPC MetWatch (Experimental)|
|Current Mesoscale Precipitation Discussions:|
|NOTE: This is a new product under development and is being posted for evaluation purposes only. This product is not operational and may not always be available.|
**More About MPDs (Click to Show/Hide)**
The prototype Mesoscale Precipitation Discussions (MPDs) provide enhanced situational
awareness of heavy rainfall and potential flash flooding events to National Weather Service
(NWS) Weather Forecast Offices (WFOs), the media, and emergency managers. MPDs are an
on-demand forecast product focused on heavy rainfall events occurring in the 1-6 hr period
over an area approximately the size of two County Warning Areas (CWAs). Each MPD consists
of a graphic indicating the area of concern and any pertinent meteorological features as well
as a brief text discussion focused on the mesoscale features supporting the anticipated heavy
rainfall. The potential for flash flooding within the area of concern will be highlighted by one of
FLASH FLOODING LIKELY Environmental conditions are favorable for heavy rainfall
that is expected to result in flash flooding.
FLASH FLOODING POSSIBLE Environmental conditions are generally favorable for
heavy rainfall, but there are questions about how the event will evolve and/or whether
flash flooding will occur.
FLASH FLOODING UNLIKELY Environmental conditions are becoming less favorable for
heavy rainfall and flash flooding is not expected.
The Flash Flooding Unlikely headline may also be used for cases in which conditions are
generally favorable for heavy rainfall, but flash flooding is not expected.
The prototype period began on May 16, 2012 and will extend through September 14, 2012.
While in prototype mode, the desk is typically staffed on weekdays only between 9:00am
6:00pm. Once fully operational, the desk will be staffed at all times. This product will continue
to evolve based on customer feedback throughout the prototype period. Please use the
feedback link to provide any comments or suggestions.