981  
FXUS01 KWBC 020737  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
337 AM EDT MON JUL 2 2018  
 
VALID 12Z MON JUL 2 2018 - 12Z WED JUL 4 2018  
   
..HEAT WAVE CONTINUES FOR THE EASTERN HALF OF THE NATION
 
 
A SLOW MOVING COLD FRONT CROSSING THE OHIO VALLEY ON MONDAY WILL  
BE THE IMPETUS FOR AREAS OF MODERATE TO LOCALLY HEAVY RAIN AND  
STRONG THUNDERSTORMS ACROSS PARTS OF THE CENTRAL AND NORTHERN  
APPALACHIANS, INCLUDING INTO NEW ENGLAND. ACROSS THE GULF COAST  
REGION, A LOW PRESSURE TROUGH WILL ENHANCE SHOWERS AND STORMS FROM  
THE FLORIDA PANHANDLE TO LOUISIANA THROUGH TUESDAY, AND SOME OF  
THESE STORMS COULD PRODUCE LOCALLY HEAVY RAIN THAT MAY CAUSE SOME  
FLOODING ISSUES. ANOTHER AREA OF HEAVY RAIN IS LIKELY ACROSS  
PARTS OF THE DAKOTAS AND MINNESOTA WITH ANOTHER LOW PRESSURE  
SYSTEM THAT WILL BE CROSSING THE NORTHERN PLAINS. DRY CONDITIONS  
ARE EXPECTED TO CONTINUE FOR MOST OF THE WESTERN U.S. FROM THE  
ROCKIES WESTWARD.  
 
THE OTHER THING MAKING WEATHER HEADLINES EARLY THIS WEEK IS THE  
ONGOING EXTENSIVE HEAT WAVE ACROSS THE EASTERN U.S. AN IMPRESSIVE  
UPPER LEVEL RIDGE IS IN PLACE OVER THE EASTERN U.S. AND THIS IS  
LEADING TO WIDESPREAD SUBSIDENCE ALOFT, AND THUS MOSTLY SUNNY  
SKIES AND HOT CONDITIONS. TEMPERATURE ANOMALIES ON THE ORDER OF  
10 TO EVEN 20 DEGREES ABOVE NORMAL ARE EXPECTED ON MONDAY, WITH  
THE POTENTIAL FOR SOME RECORD HIGH TEMPERATURES TO BE SET ACROSS  
THE NORTHEASTERN STATES. HEAT ADVISORIES AND SOME EXCESSIVE HEAT  
WARNINGS ARE IN EFFECT FROM NORTHEAST NORTH CAROLINA TO NEW  
HAMPSHIRE. HIGH TEMPERATURES IN THE 90S TO NEAR 100 DEGREES,  
COMBINED WITH HIGH DEWPOINTS, IS EXPECTED RESULT IN HEAT INDICES  
OF 100 TO 110 DEGREES FOR MANY AREAS. OVERNIGHT LOWS WILL ALSO BE  
QUITE SULTRY, ESPECIALLY IN URBAN AREAS WHERE READINGS COULD  
REMAIN ABOVE 75 DEGREES ALL NIGHT.  
 
D. HAMRICK  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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