..OHIO
SOUTHWESTERLY MID-LEVEL FLOW WILL BE IN PLACE OVER THE OHIO VALLEY
AND LOWER GREAT LAKES TODAY. AT THE SURFACE, AN AXIS OF LOW-LEVEL
MOISTURE WILL BE LOCATED FROM EASTERN KENTUCKY INTO CENTRAL AND
NORTHERN OHIO, WHERE DEWPOINTS WILL BE IN THE MID TO UPPER 60S F. AS
INSTABILITY INCREASES DURING THE DAY, SCATTERED THUNDERSTORMS ARE
EXPECTED TO DEVELOP AND MOVE NORTHEASTWARD ACROSS THE INSTABILITY
CORRIDOR. RAP FORECAST SOUNDINGS IN CENTRAL OHIO AT 21Z HAVE 0-6 KM
SHEAR NEAR 30 KNOTS WITH 0-3 KM STORM-RELATIVE HELICITY AROUND 150
M2/S2. THIS COULD BE ENOUGH FOR AN ISOLATED TORNADO THREAT.
