National Weather Service United States Department of Commerce

Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

NWS State College Aviation Weather Discussion
.AVIATION /06Z THURSDAY THROUGH MONDAY/...
High pressure at the surface and aloft which is delivering
unseasonable heat and humidity will expand and center more 
closely to Pennsylvania over the next 48 hours.

This will push any ridge-edge convection further north and east
of Pennsylvania Thursday and Friday. Good VFR will prevail at
all locations through the forecast period. Winds will remain
generally light and westerly with just isolated areas (20%) 
topping 10 knots during the afternoon hours.

Biggest concern will be density altitude over the next two days.
High resolution short term models forecast dewpoints to drop 
overnight and then fall into the 50s during the afternoon 
Thursday. This should keep any widespread fog from forming 
overnight (<10%), but will help surface temperatures climb a few
degrees higher than today. If you're flying on the heavy side 
and/or taking off from a runway on the shorter side, double 
check that value and its effect on your performance.

Outlook...

Fri-Sat...Patchy AM fog; otherwise VFR. Hot & humid with PM 
t-storms psbl. High density altitude concerns possible.

Sun...Restrictions possible in afternoon t-storms.

Mon...Restrictions possible in afternoon t-storms.

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METARS & TAFs
BFD METAR TAF
JST METAR TAF
AOO METAR TAF
UNV METAR TAF
IPT METAR TAF
MDT METAR TAF
LNS METAR TAF

 

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