nickgrillo
EF5
Blue box should be issued soon....
Thunderstorms continue to increase, especially across Southern Illinois where surface dew points are currently in the upper 50's... Shear is expected to continue to decrease during the afternoon, however ... there will be increasing instability, with SBCAPE reaching around 1500 J/KG by early this afternoon, therefore... I'm expecting the weakening shear may not occur soon enough to blow away the severe weather threat. You can expect some marginally large hail reports today from this stuff....
..Nick..
Thunderstorms continue to increase, especially across Southern Illinois where surface dew points are currently in the upper 50's... Shear is expected to continue to decrease during the afternoon, however ... there will be increasing instability, with SBCAPE reaching around 1500 J/KG by early this afternoon, therefore... I'm expecting the weakening shear may not occur soon enough to blow away the severe weather threat. You can expect some marginally large hail reports today from this stuff....
..Nick..