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> July 5th-? Heatwave for Midwest/Plains/Ohio Valley, Long Range Possibility (6-10 days) Forecasts and Observations
post Jun 27 2017, 07:31 PM
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EF-2 (Frequent Poster)

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Joined: 14-October 08
From: Belleville, Illinois
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"It's the one with the potential 'Mega Dome' aka a 594+ DM ridge."

NWS Hazardous Weather Outlook has officially placed a 'Excessive Heat" Hazard for the Mid-Mississippi River Valley from July 6th to the 7th.

Meanwhile most global models are showing some kind of strong 594-600DM 500MB ridge building in from that time till the 12th or so over the central states, spreading east into the corn belt. Bring excessive heat combined with 'Corn Sweat' as corn nears maturity, farther compounding heat index problems and creating 80*F dewpoints in places during this time.

This post has been edited by ILStormwatcher: Jun 27 2017, 07:32 PM
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