THE HYDROMETEOROLOGICAL PREDICTION CENTER
CAMP SPRINGS, MD
STORM SUMMARY MESSAGE
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
Last Updated: 500 AM EDT SUN JUL 17 2011