THE HYDROMETEOROLOGICAL PREDICTION CENTER
CAMP SPRINGS, MD
STORM SUMMARY MESSAGE
STORM SUMMARY NUMBER 05 FOR HIGH HEAT INDICES
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
500 AM EDT TUE JUL 19 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. THIS WEEK...
EXCESSIVE HEAT WATCHES...WARNINGS AND HEAT ADVISORIES ARE IN
EFFECT FOR A LARGE PORTION OF THE CENTRAL U.S. AND OHIO RIVER
VALLEY. 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 MONDAY JUL 18 2011...
...ILLINOIS...
FREEPORT 124
MOLINE 112
RANTOUL 111
SAVANNAH 110
QUINCY 106
TAYLORVILLE 105
...INDIANA...
GRISSOM AFB 110
LAFAYETTE 106
INDIANAPOLIS 101
...IOWA...
KNOXVILLE 131
NEWTON 129
ATLANTIC 126
COUNCIL BLUFFS 126
ORANGE CITY 123
ALGONA 122
ANKENY 122
SPENCER 118
SIOUX CITY 117
WATERLOO 116
DES MOINES 114
...KANSAS...
LAWRENCE 110
TOPEKA 108
GREAT BEND 107
SALINA 107
WICHITA 107
HAYS 106
HILL CITY 106
...MICHIGAN...
LENAWEE COUNTY ARPT 107
ANN ARBOR 105
HILLSDALE 105
JACKSON 105
...MINNESOTA...
MADISON 124
HUTCHINSON 123
AUSTIN 121
REDWOOD FALLS 119
ROCHESTER 118
MARSHALL 117
MINNEAPOLIS 117
ST JAMES 117
NEW ULM 114
PIPESTONE 114
...MISSOURI...
KIRKSVILLE 107
WHITEMAN AFB 106
KANSAS CITY 105
...OKLAHOMA...
SHAWNEE 111
CHANDLER 109
ARDMORE 108
OKLAHOMA CITY 106
PONCA CITY 106
STILLWATER 106
...NEBRASKA...
OFFUTT AFB 117
TEKAMAH 117
HEBRON 115
FALLS CITY 113
LINCOLN 111
ALBION 110
KEARNEY 107
...SOUTH DAKOTA...
CHAMBERLAIN 115
MITCHELL 115
ABERDEEN 114
HURON 113
PIERRE 113
SIOUX FALLS 111
WATERTOWN 109
...TEXAS...
DALLAS 108
PARIS 106
TYLER 105
...WISCONSIN...
WATERTOWN 119
BOSCOBEL 117
LONE ROCK 115
MADISON 114
PRAIRIE DU CHIEN 114
VOLK 114
EAU CLAIRE 113
STEVENS POINT 110
MILWAUKEE 107
A LARGE RIDGE OF HIGH PRESSURE IN THE UPPER LEVELS OF THE
ATMOSPHERE REMAINS IN PLACE ACROSS THE CENTRAL 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. THE UPPER-LEVEL
RIDGE WILL EXPAND EASTWARD THIS WEEK. BY MIDWEEK...THE HOT
TEMPERATURES WILL BEGIN TO SPREAD INTO THE EASTERN STATES...WITH
HIGH TEMPERATURES IN THE MID TO UPPER 90S ARRIVING IN THE
MID-ATLANTIC STATES AS SOON AS WEDNESDAY. HIGH TEMPERATURES NEAR
100 DEGREES WILL BE POSSIBLE BY THURSDAY ACROSS MUCH OF THE
MID-ATLANTIC STATES AND PARTS OF THE SOUTHEAST U.S. THESE
TRIPLE-DIGIT TEMPERATURES ARE FORECAST TO REMAIN IN PLACE ACROSS
THE EASTERN U.S. THROUGH THE WEEKEND.
THE NEXT STORM SUMMARY WILL BE ISSUED BY THE HYDROMETEOROLOGICAL
PREDICTION CENTER AT 500 AM EDT...WEDNESDAY JULY 20. PLEASE REFER
TO YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE FOR ADDITIONAL
INFORMATION ON THIS EVENT.
RYAN
Last Updated: 500 AM EDT TUE JUL 19 2011