MWA is the only private weather forecast company in the world which has developed an operational 30-day weather forecast computer model.

The proprietary MWA Ensemble competed in 2010 is a global spectral model based on decades of research performed at the National Center for Atmospheric Research (NCAR) in Boulder, Colorado.

Before MWA only the largest governmental weather forecast entities invested the resources necessary to develop and operate long-range dynamic numerical models. To this day the longest operational forecasts generated by these only extend out 15 days.

The 30 day forecast horizon of the MWA makes it ideal in identification of the timing and nature of important atmospheric pattern changes.

Computer generated forecasts are updated twice per day, 7 days per week, with all meteorological parameters displayed graphically; at the surface, and several upper level altitudes commonly utilized in weather forecasting.

Surface graphics include easy to understand 5 day composites of temperature anomaly and precipitation. Numerical surface parameters are also available in tabular form for over 200 North American cities.

Worldwide forecasts are generated for 6 additional continents. For clients interested in utilizing direct MWA ensemble numerical output to initialize in-house energy demand or pricing models comma delimited files are available.

November 18 - Long Range Summary

The coldest air of the season flooding the West this past weekend spread into the central U.S. early this week, but temperatures west of the Rockies will be slow to moderate as additional snow-producing storms track through mainly northern portions of the region this week. While another multiday warming trend underway across the Midwest and East is forecast to peak temperatures 10°-15° above average during the 1st half of this week, a pair of progressively colder and wetter late week storms are certain to end above average warmth for the longest consecutive day stretch of fall.  During this prolonged cool period latest models extend through the entire final week of November the 1st snow of the season is also forecast in portions of the Ohio Valley, Appalachians, and interior Northeast. Both cold air intensity and Eastern snow appear underdone in recent modeling as forecasts struggle with strong dynamics associated with an unseasonably cold closed low set to deepen between the northern Plains and Ohio Valley mid-late workweek before slowly lifting through the Northeast next weekend (Nov 23-24).  Winter-like overnight low temperatures in the 30s extending deep into northern Texas and the Southeast by the end of this workweek will be especially noticeable after the unseasonably warm November still underway across the southeast quadrant of the U.S. and even daytime highs are considered likely to bottom out near 10° below average across most of the Midwest and East. Milder temperatures remain on track to return to the Eastern U.S. in early December while colder air lingering between western Canada and the Pacific Northwest air drains back into portions of the Southwest. However longer range 30-day MWA ensemble forecasts spread this next notably colder Western airmass back into the Eastern U.S. during the 2nd week of December generating another extended period of seasonal to moderately below average temperatures on the order of one full week or more, setting the stage for a colder start to winter than typical during La Niña.


If your business or career depends on correctly predicting the weather, you can follow the pack or you can get ahead with MWA’s proprietary models and expert forecasts.
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    Melita Weather Associates, 138 Northeast
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