Skip Navigation Links 
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
The Weather Prediction Center



Follow the Weather Prediction Center on Facebook Follow the Weather Prediction Center on Twitter
NCEP Quarterly Newsletter
WPC Home
Analyses and Forecasts
   National High & Low
   WPC Discussions
   Surface Analysis
   Days ½-2½ CONUS
   Days 3-7 CONUS
   Days 4-8 Alaska
   Flood Outlook
   Winter Weather
   Storm Summaries
   Heat Index
   Air Quality
   Tropical Products
   Daily Weather Map
   GIS Products
Current Watches/

Satellite and Radar Imagery
   Satellite Images
   National Radar
Product Archive
WPC Verification
   Medium Range
   Model Diagnostics
   Event Reviews
International Desks
Development and Training
WPC Overview
   About the WPC
   WPC History
   Other Sites
Meteorological Calculators
Contact Us
   About Our Site is the U.S. Government's official web portal to all federal, state, and local government web resources and services.
Short Range Public Discussion
(Caution: Version displayed is not the latest version. - Issued 0751Z Jul 21, 2014)
Version Selection
Versions back from latest:  0   1   2   3   4   5   6   7   8   9   10   
Abbreviations and acronyms used in this product
Geographic Boundaries -  Map 1: Color  Black/White       Map 2: Color  Black/White

Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 351 AM EDT Mon Jul 21 2014 Valid 12Z Mon Jul 21 2014 - 12Z Wed Jul 23 2014 ...There is a slight risk of severe thunderstorms from parts of the Northern Plains to Upper Great Lakes... ...There is an embedded region of moderate risk of severe thunderstorms over parts of the Northern Plains to parts of the Upper Mississippi Valley... ...Heavy rain possible from parts of the Northern Plains to Upper Great Lakes... A slow moving front extending from the Upper Mississippi Valley to the Northern Intermountain Region will advance eastward to the Upper Great Lakes and southward to the Central Plains by Tuesday evening. High moisture content air will intersect the boundary producing showers and thunderstorms with heavy rain over North Dakota into Minnesota on Monday evening moving into the Upper Great Lakes by Tuesday morning. By Tuesday evening, showers and thunderstorms will extend from the Great Lakes to parts of the Middle Mississippi Valley. Meanwhile, upper-level impulses over the Northern Intermountain Region along with a closed upper-level low will rotate to the Pacific Northwest Coast will produce showers and thunderstorms over parts of the Great Basin/Northern Intermountain Region into parts of the Northern Rockies/Northern High Plains through Tuesday. As the upper-level low closes into the Pacific Northwest, rain will develop over parts of the Northwest on Tuesday. In the meantime, upper-level energy over the Lower Great Lakes will move eastward out over the Western Atlantic triggering showers and thunderstorms over parts the Central/Northern Appalachians on Monday. Additional upper-level energy over the Southeast/Central Gulf Coast will produce showers and thunderstorms from the Central Gulf Coast to the Southeast/Southern Mid-Atlantic on Monday. On Tuesday the showers and thunderstorms will become more confined to the Southeast and immediate Central Gulf Coast and Florida. Elsewhere, weak monsoonal moisture and diurnal heating will produce showers and thunderstorms over portions of the Southern Rockies/High Plains during the late afternoon and evening hours on Monday and Tuesday. Ziegenfelder Graphics available at