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Short Range Public Discussion
(Latest Discussion - Issued 0808Z Feb 27, 2015)
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Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 307 AM EST Fri Feb 27 2015 Valid 12Z Fri Feb 27 2015 - 12Z Sun Mar 01 2015 ...Heavy snow for parts of the Central/Southern Rockies... ...Temperatures will be 20 to near 40 degrees below average over the Central and Southern Plains... Temperatures will be 15 to 30 degrees below average from the Middle Mississippi Valley to the Ohio Valley and the Northern Mid-Atlantic... Cold high pressure over the Middle Mississippi Valley will move eastward to the Mid-Atlantic by Saturday evening. Temperatures east of the Rockies will be below average for the next few days. In addition, a closed upper-level low over the Pacific Northwest will move southward to the Great Basin by Saturday. The energy will trigger coastal rain and higher elevation snow over parts of the Pacific Northwest that will slowly move southward into Southern California and the Great Basin by Saturday. Meanwhile, circulation around the area of high pressure will aid in producing upslope flow which will aid in producing snow over parts of the Central/Southern Rockies and High Plains on Friday morning. As the high moves eastward return flow around the high will pull moisture off the Gulf of Mexico. As the moisture moves farther inland, the snow over the Central/Southern High Plains will expand eastward over parts of the Central Plains/Middle Mississippi Valley on Saturday. Rain will also develop over parts of the Lower Rio Grande Valley/Southern Plains on Friday afternoon into Saturday. In between the areas of rain and snow, a region of rain/freezing rain will develop over parts of the Southern Plains late Friday night into Saturday. Elsewhere, there will be areas of rain over parts of southern Florida through Saturday. Ziegenfelder Graphics available at