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Short Term Discussion

By: NWS
By: NWS

SHORT TERM (THROUGH FRIDAY)...
DURING WEDNESDAY INTO FRIDAY...QUASI-ZONAL BELT OF WLYS REMAINS
ACROSS NRN THIRD OF CONUS BUT WILL SLOWLY DEEPENS AS UPPER TROUGH
DEVELOPS SEWD OVER CNTRL CANADA INTO WED AND THEN SPREADS EWD. IN
SRN STREAM...UPPER RIDGE WILL REMAIN ANCHORED OVER SRN TWO THIRDS OF
U.S. BUT GRADUALLY WEAKEN AND ERODES WESTWARD. SO WILL NEED TO WATCH
FOR DISTURBANCES ROUNDING THE N PERIPHERY OF THIS RIDGE AND INTO NE
GULF AS IT SLOWLY RETROGRADES THRU SHORT TERM. HOWEVER...FLOW ALOFT
REMAINS FAIRLY ZONAL N OF THE HIGH/RIDGE AND THIS SHOULD SHUNT MOST
DISTURBANCES N OF THE AREA. AT THE SAME TIME WILL SEE THE
RE-DEVELOPMENT OF A TYPICAL SUBTROPICAL SURFACE RIDGE POSITION
MOVING FURTHER N TO ACROSS THE FL PENINSULA AND NORTHEAST GULF OF
MEXICO. NET RESULT WILL BE TO INCREASINGLY TREND THE FORECAST TOWARD
ONE MORE TYPICAL OF EARLY AUGUST. AS FAR AS TEMPERATURES...THEY MAY
COME DOWN A FEW DEGREES... HOWEVER WITH THE LOW LEVEL FLOW OFF THE
GULF...DEWPOINTS WILL REMAIN HIGH...AND SO WILL THE HEAT INDICES.
BORDERLINE HEAT ADVISORY CRITERIA ON WED...ESPECIALLY ACROSS SE ALA
AND ADJACENT SW GA/PANHANDLE. BUT FOR NOW WILL NOT ISSUE ADVISORY
AND DEFER TO MID SHIFT FOR FINAL DECISION. EVEN LESS LIKELY THURS
AND FRI. HOWEVER HIGH PWATS AND INCREASINGLY ONSHORE FLOW WILL KEEP
IT UNCOMFORTABLE.


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