Friday, July 6, 2012

The Heat is On Off?
Sunday, 8 July

The oppressive heat that has affected the Mid-West and East Coast may be gone by Monday.  A Cold Front is sagging into the Ohio Valley and Mid-Atlantic will bring welcomed relief to those areas.  The danger is that this front may set off Severe Thunderstorms during its passage Sunday into Monday.

Forecast for 8 July

Forecast for 1600
T = thunderstorms;
RW = rain  showers

A Monsoonal flow coupled with a frontal boundary in the SW will bring rain and storms to the Lee of the Rockies,  with possible Flash Flooding. 

Radar 1345

Prepare for a record hot Saturday

12:40 PM EDT 7/6 (Forecaster Jason) A large upper level ridge of high pressure dominating much of the country is delivering excessive heat to nearly half the states the union, Temperatures are nearing 100° mark in many locations, and over 3,000 records were broken on Thursday as a result of the heat. This overview from our Central Maryland page in Facebook is an example of heat-related statements posted in many of our forecast zones across the U.S.. Below is a preliminary message about severe weather on Sunday. 

  • TODAY & TONIGHT: Highs will reach the mid to upper 90s with heat indices around 100-105°. A HEAT ADVISORY is in effect until 8PM. Air Quality is Code Orange, which means that the air quality will be unhealthy for sensitive groups. Lows tonight will only be in the mid to upper 70s for most areas. 
  • SATURDAY: This heat wave is expected to reach its peak on Saturday. Highs for most locations should reach or top 100°, and heat indices around 110° are expected. An EXCESSIVE HEAT WATCH continues for the entire region. Unusually warm temperatures are likely Saturday night with many locations barely dropping below 80°

Severe weather possible on Sunday 

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