STORM SUMMARY NUMBER 03 FOR HIGH HEAT INDICES
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
500 AM EDT SUN JUL 17 2011

...COMBINATION OF VERY HOT TEMPERATURES AND HIGH HUMIDITY WILL
CREATE DANGEROUS HEAT INDICES OVER THE CENTRAL U.S. THE HOT
WEATHER WILL SPREAD INTO THE EASTERN U.S. LATER THIS WEEK...

EXCESSIVE HEAT WATCHES...WARNINGS AND HEAT ADVISORIES ARE IN
EFFECT FOR A LARGE PORTION OF THE CENTRAL U.S. 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 INTO NEXT WEEK CAN BE FOUND AT
www.hpc.ncep.noaa.gov/heat_index_MAX.shtml


...SELECTED HIGH HEAT INDEX VALUES FROM SATURDAY JUL 16 2011...

...ARKANSAS...
ARKADELPHIA                              113
SEARCY                                   108
LITTLE ROCK                              107
FORT SMITH                               107
RUSSELLVILLE                             106
PINE BLUFF                               105

...IOWA...
KNOXVILLE                                126
ANKENY                                   123
ATLANTIC                                 120
SHENANDOAH                               114
ALGONA                                   111
CHARITON                                 111
DENISON                                  111
ESTHERVILLE                              109
SIOUX CITY                               109
RED OAK                                  108

...KANSAS...
HUTCHINSON                               111
SALINA                                   111
TOPEKA                                   111
WICHITA                                  111
HAYS                                     110
CONCORDIA                                110
PARSONS                                  107

...LOUISIANA...
MONROE                                   110

...MINNESOTA...
MONTEVIDEO                               115
HUTCHINSON                               112
REDWOOD FALLS                            108
BENSON                                   105
ORTONVILLE                               105
PIPESTONE                                105

...MISSOURI...
ST JOSEPH                                117
KANSAS CITY                              107
LITTON                                   106
WHITEMAN AFB                             106

...OKLAHOMA...
SHAWNEE                                  114
DURANT                                   110
STILLWATER                               110
BARTLESVILLE                             109
PONCA CITY                               109
ATOKA                                    108
ALTUS AFB                                107

...NEBRASKA...
HEBRON                                   119
YORK                                     114
LINCOLN                                  113
OMAHA                                    112
LEXINGTON                                111
BEATRICE                                 110
NORFOLK                                  109
GRAND ISLAND                             107

...NORTH DAKOTA...
GRAND FORKS                              112
LINTON                                   111
GWINNER                                  108
JAMESTOWN                                108
BISMARCK                                 103

...SOUTH DAKOTA...
PIERRE                                   112
WINNER                                   111
YANKTON                                  110
MITCHELL                                 109
PHILIP                                   108
HURON                                    106
MOBRIDGE                                 106
ABERDEEN                                 106

...TEXAS...
PARIS                                    108
FORT WORTH                               107
TYLER                                    107
DALLAS                                   106
DENTON                                   105


A RATHER STAGNANT WEATHER PATTERN CONTINUES OVER THE CENTRAL U.S.
AS A LARGE REGION OF HIGH PRESSURE IN THE UPPER LEVELS OF THE
ATMOSPHERE REMAINS IN PLACE. THIS RIDGE OF HIGH PRESSURE IS
RESULTING IN GENERALLY LIGHT WINDS AND WIDESPREAD AFTERNOON
TEMPERATURES INTO THE UPPER 90S TO LOWER 100S. THIS COMBINED WITH
HIGH RELATIVE HUMIDITY WILL CREATE DANGEROUS HEAT INDICES WELL
ABOVE 100 DEGREES OVER A LARGE PORTION OF THE NATION FOR SEVERAL
DAYS. BY MIDWEEK...THE HOT TEMPERATURES WILL BEGIN TO SPREAD
EASTWARD INTO THE EAST COAST STATES...WITH HIGH TEMPERATURES IN
THE MID TO UPPER 90S ARRIVING IN THE MID-ATLANTIC STATES BY
THURSDAY.

THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 500 AM EDT...MONDAY JULY 18. PLEASE REFER TO
YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL
INFORMATION ON THIS EVENT.

RYAN