STORM SUMMARY NUMBER 07 FOR HIGH HEAT INDICES
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
500 AM EDT THU JUL 21 2011
 
...DANGEROUS HEAT WAVE CONTINUES ACROSS MUCH OF THE CENTRAL U.S.
AND EASTERN U.S. TODAY...
 
EXCESSIVE HEAT WATCHES...WARNINGS AND HEAT ADVISORIES ARE IN
EFFECT FOR MUCH OF THE CENTRAL U.S. AND OHIO RIVER VALLEY...AS
WELL AS AREAS FROM THE CAROLINAS NORTHWARD INTO NEW ENGLAND.
TEMPERATURES WILL FEEL LIKE 100 TO 110 DEGREES OR HIGHER 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 WEDNESDAY JUL 20 2011...

...ALABAMA...
MUSCLE SHOALS                                106
CULLMAN                                      105

...ARKANSAS...
ARKADELPHIA                                  111
SEARCY                                       106
FORT SMITH                                   105

...GEORGIA...
THOMASTON                                    111
DUBLIN                                       110
DOUGLAS                                      107
AUGUSTA                                      106
LA GRANGE                                    106

...ILLINOIS...
TAYLORVILLE                                  115
FREEPORT                                     113
MOUNT VERNON                                 112
STERLING ROCKFALLS                           112
CHICAGO                                      109
SPRINGFIELD                                  109
PEORIA                                       107

...INDIANA...
GRISSOM AFB                                  120
LAFAYETTE                                    117
INDIANAPOLIS                                 115
HUNTINGBURG                                  114
BLOOMINGTON                                  113

...IOWA...
COUNCIL BLUFFS                               123
ATLANTIC                                     121
NEWTON                                       121
KNOXVILLE                                    117
ANKENY                                       113
DES MOINES                                   109

...KANSAS...
HAYS                                         108
HILL CITY                                    108
SALINA                                       108
TOPEKA                                       107
WICHITA                                      106

...KENTUCKY...
FORT KNOX                                    117
OWENSBORO                                    117
BOWLING GREEN                                111
COVINGTON                                    108
LEXINGTON                                    107

...MARYLAND...
FREDERICK                                    108
BALTIMORE                                    105

...MICHIGAN...
BENTON HARBOR                                111
COLDWATER                                    110
GRAND RAPIDS                                 107
TULIP CITY                                   106
TRAVERSE CITY                                105
DETROIT                                      103

...MINNESOTA...
AUSTIN                                       110
HUTCHINSON                                   110
MINNEAPOLIS                                  110
OWATONNA                                     108
ST. CLOUD                                    105

...MISSOURI...
ST. LOUIS                                    108
WHITEMAN AFB                                 107
JEFFERSON CITY                               106
KANSAS CITY                                  105
JOPLIN                                       105

...NORTH CAROLINA...
POPE AFB                                     111
SEYMOUR-JOHNSON AFB                          109
CONCORD                                      107
RALEIGH                                      106
ROCKY MOUNT                                  106

...OHIO...
HAMILTON                                     106
DAYTON                                       104
TOLEDO                                       104
WILMINGTON                                   102

...OKLAHOMA...
DUNCAN                                       108
CHANDLER                                     107
STILLWATER                                   107
TULSA                                        107
OKLAHOMA CITY                                102

...NEBRASKA...
TEKAMAH                                      113
OFFUTT AFB                                   111
LINCOLN                                      109
HASTINGS                                     107
COLUMBUS                                     105

...SOUTH CAROLINA...
MYRTLE BEACH                                 108
DARLINGTON                                   107
CHARLESTON                                   106
FLORENCE                                     106
COLUMBIA                                     105

...TENNESSEE...
MEMPHIS                                      112
DYERSBURG                                    105
NASHVILLE                                    105
KNOXVILLE                                    104

...VIRGINIA...
FARMVILLE                                    115
SHANNON                                      114
CULPEPER                                     110
PETERSBURG                                   110

...WISCONSIN...
WATERTOWN                                    114
BOSCOBEL                                     110
KENOSHA                                      110
MILWAUKEE                                    109
LA CROSSE                                    107
MADISON                                      106


A LARGE RIDGE OF HIGH PRESSURE IN THE UPPER LEVELS OF THE
ATMOSPHERE REMAINS IN PLACE ACROSS THE CENTRAL AND EASTERN
U.S...KEEPING HOT TEMPERATURES IN PLACE. THE HOT TEMPERATURES
COMBINED WITH HIGH RELATIVE HUMIDITY WILL CREATE DANGEROUS HEAT
INDICES WELL ABOVE 100 DEGREES OVER A LARGE PORTION OF THE NATION.
HIGH TEMPERATURES NEAR 100 DEGREES WILL BE POSSIBLE TODAY ACROSS
MUCH OF THE MID-ATLANTIC STATES AND PARTS OF THE SOUTHEAST U.S.
FRIDAY WILL BE THE HOTTEST DAY ACROSS THE MID-ATLANTIC
STATES...WHERE HEAT INDICES OF 115 DEGREES WILL BE POSSIBLE. THESE
TRIPLE-DIGIT TEMPERATURES ARE FORECAST TO REMAIN IN PLACE ACROSS
THE EASTERN U.S. THROUGH SATURDAY...BEFORE COOLING OFF SLIGHTLY TO
THE MID 90S BY SUNDAY. THE EXTREMELY HOT TEMPERATURES SHOULD BEGIN
TO SUBSIDE ACROSS PORTIONS OF THE NORTHERN PLAINS TODAY...BUT THE
INTENSE HEAT WILL REMAIN IN PLACE THROUGH THE WEEKEND ACROSS THE
CENTRAL AND SOUTHERN PLAINS.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 500 AM EDT...FRIDAY JULY 22. PLEASE REFER TO
YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL
INFORMATION ON THIS EVENT.

RYAN