THE HYDROMETEOROLOGICAL PREDICTION CENTER

CAMP SPRINGS, MD


STORM SUMMARY MESSAGE



STORM SUMMARY NUMBER 9 FOR HIGH HEAT INDICES...CORRECTED
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
438 AM EDT SAT JUL 23 2011
 
...RECORD-BREAKING HEAT WAVE CONTINUES ACROSS MUCH OF THE CENTRAL
U.S. AND EASTERN U.S...
 
EXCESSIVE HEAT WARNINGS AND HEAT ADVISORIES ARE IN EFFECT FOR MUCH
OF THE CENTRAL U.S. AND OHIO RIVER VALLEY...AS WELL AS AREAS FROM
THE EASTERN CAROLINAS NORTHWARD INTO THE NEW YORK CITY AREA. HOT
TEMPERATURES...COMBINED WITH THE OPPRESSIVE HUMIDITY LEVELS...WILL
CREATE HEAT INDICES BETWEEN 105 TO 120 DEGREES DURING THE
AFTERNOON HOURS.
 
FOR A DETAILED GRAPHICAL DEPICTION OF THE LATEST
WATCHES...WARNINGS AND ADVISORIES...PLEASE SEE WWW.WEATHER.GOV

HEAT INDEX SAFETY INFORMATION AND MEANINGS OF WATCHES...WARNINGS
AND ADVISORIES CAN BE FOUND AT WWW.WEATHER.GOV/OM/HEAT/INDEX.SHTML

GRAPHICAL HEAT INDEX FORECASTS CAN BE FOUND AT
www.hpc.ncep.noaa.gov/heat_index_MAX.shtml


...SELECTED HIGH HEAT INDEX VALUES FROM FRIDAY JULY 22 2011...


...DELAWARE...
WILMINGTON				     124
DOVER					     119
GEORGETOWN				     114

...ILLINOIS...
TAYLORVILLE				     118
SPRINGFIELD				     113
MOUNT VERNON				     110


...KANSAS...
TOPEKA                                       108
WICHITA					     107

...KENTUCKY...
OWENSBORO                                    107
COVINGTON                                    107
LOUISVILLE				     106

...MARYLAND...
EASTON					     125
ANNAPOLIS				     120
OCEAN CITY 				     120
ANDREWS AFB				     119
BALTIMORE				     118

...MISSOURI...
ST. LOUIS                                    112
JEFFERSON CITY                               110
KANSAS CITY                                  105

...NEW JERSEY...
ATLANTIC CITY				     122
CAPE MAY				     120
TRENTON					     119
NEWARK					     117

...NEW YORK...
CENTRAL PARK (NYC)			     115
ISLIP					     114
NEWBURGH				     110

...NORTH CAROLINA...
ELIZABETH CITY				     114
WILMINGTON				     113
ROCKY MOUNT				     111
FAYETTEVILLE				     109
RALEIGH					     108

...OHIO...
COLUMBUS				     110
WILMINGTON				     107
CLEVELAND				     107

...OKLAHOMA...
TULSA					     105
OKLAHOMA CITY                                104

...PENNSYLVANIA...
PHILADELPHIA				     119
HARRISBURG				     116
DOYLESTOWN				     115

...SOUTH CAROLINA...
MYRTLE BEACH                                 111
CHARLESTON                                   111
FLORENCE				     107

...VIRGINIA...
ARLINGTON (DCA)				     121
STERLING				     116
VIRGINIA BEACH				     115
NEWPORT NEWS				     114
RICHMOND				     114
NORFOLK					     112


...ALL-TIME RECORD HIGH TEMPERATURES SET OR TIED ON FRIDAY JULY 22
2011...

NEWARK NJ       108       OLD RECORD 105 - AUGUST 9 2001
DULLES VA       105       OLD RECORD 104 - AUGUST 20 1983 AND JULY
16 1988 
BRIDGEPORT CT   103       OLD RECORD 103 - JULY 22 1957 (TIED)


A LARGE RIDGE OF HIGH PRESSURE IN THE UPPER LEVELS OF THE
ATMOSPHERE REMAINS IN PLACE ACROSS THE CENTRAL AND EASTERN
U.S...KEEPING VERY HOT TEMPERATURES IN PLACE.  THE HOT
TEMPERATURES COMBINED WITH HIGH DEW POINTS WILL CREATE DANGEROUS
HEAT INDICES WELL ABOVE 100 DEGREES OVER A LARGE AREA.  HIGH
TEMPERATURES NEAR 100 DEGREES WILL BE POSSIBLE SATURDAY ACROSS
MUCH OF THE MID-ATLANTIC STATES AND INTO SOUTHEAST U.S.  A GENERAL
COOLING TREND CAN BE EXPECTED FOR SUNDAY AND MONDAY WITH A RETURN
TO NEAR AVERAGE CONDITIONS FOR LATE JULY.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 500 AM EDT...SUNDAY...JULY 24. PLEASE REFER
TO YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL
INFORMATION ON THIS EVENT.

HAMRICK




Last Updated: 439 AM EDT SAT JUL 23 2011