Special Weather Statement

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
1209 PM EDT TUE JUL 19 2011

OHZ039>041-048>050-057>059-068-069-PAZ020-021-029-031-073-075-
WVZ001>004-012-021-022-192230-
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-HARRISON-JEFFERSON OH-
MUSKINGUM-GUERNSEY-BELMONT-NOBLE-MONROE-BEAVER-ALLEGHENY-
WASHINGTON-GREENE-WESTMORELAND-FAYETTE-HANCOCK-BROOKE-OHIO-
MARSHALL-WETZEL-MARION-MONONGALIA-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...DOVER...
UHRICHSVILLE...CARROLLTON...EAST LIVERPOOL...SALEM...COLUMBIANA...
EAST PALESTINE...WELLSVILLE...CALCUTTA...COSHOCTON...CADIZ...
HOPEDALE...STEUBENVILLE...ZANESVILLE...CAMBRIDGE...
MARTINS FERRY...ST. CLAIRSVILLE...BELLAIRE...BARNESVILLE...
SHADYSIDE...BRIDGEPORT...CALDWELL...WOODSFIELD...ALIQUIPPA...
BEAVER FALLS...AMBRIDGE...MONACA...BEAVER...
PITTSBURGH METRO AREA...WASHINGTON...CANONSBURG...DONORA...
CALIFORNIA...CHARLEROI...MONONGAHELA...MCMURRAY...WAYNESBURG...
FAIRDALE...GREENSBURG...NEW KENSINGTON...JEANNETTE...LATROBE...
MONESSEN...UNIONTOWN...CONNELLSVILLE...POINT MARION...TORONTO...
WEIRTON...WHEELING...MOUNDSVILLE...NEW MARTINSVILLE...FAIRMONT...
MORGANTOWN
1209 PM EDT TUE JUL 19 2011

...HEAT AND HUMIDITY WILL COMBINE FOR HIGH HEAT INDICES WEDNESDAY
INTO SATURDAY...

THE NATIONAL WEATHER SERVICE EXPECTS HOTTER TEMPERATURES WEDNESDAY
INTO SATURDAY ACROSS THE UPPER OHIO VALLEY. WHEN COMBINED WITH AN
ALREADY HIGH HUMIDITY, CONDITIONS CAN BECOME QUITE UNCOMFORTABLE
AND POTENTIALLY DANGEROUS.

THE NATIONAL WEATHER SERVICE IS FORECASTING HIGH TEMPERATURES EACH
AFTERNOON, WEDNESDAY THROUGH SATURDAY, TO BE IN THE LOWER TO MID
90S. WHEN COMBINED WITH DEW POINTS PUSHING 70, THE APPARENT
TEMPERATURE, ALSO CALLED THE HEAT INDEX, WILL PEAK IN THE 95 TO
100 RANGE EACH AFTERNOON. NOTE THE APPARENT TEMPERATURE ONLY
ACCOUNTS FOR THE EFFECT OF TEMPERATURE AND DEW POINT, BUT DOES NOT
ACCOUNT FOR THE EXTRA HEATING EFFECT OF DIRECT SUNSHINE, WHICH CAN
ADD ANOTHER 15 DEGREES TO THE APPARENT TEMPERATURE.

THIS HOT WEATHER REQUIRES EXTRA PRECAUTIONS, PARTICULARLY FOR
THOSE SPENDING SIGNIFICANT TIME OUTDOORS. KNOW THE SYMPTOMS OF
HEAT EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING, AND DRINK PLENTY OF WATER.

NATIONAL WEATHER SERVICE RECORDS SHOW NORMAL HIGH TEMPERATURES
ACROSS THE UPPER OHIO VALLEY IN LATE JULY ARE IN THE LOWER 80S AND
NORMAL DEW POINTS ARE ABOUT 60.

WHEN DISCUSSING HUMIDITY, METEOROLOGISTS OFTEN REFER TO DEW POINT
BECAUSE IT IS A MEASURE OF THE AIR`S ACTUAL HUMIDITY CONTENT. THE
HIGHER THE DEW POINT, THE MORE HUMIDITY IN THE AIR.

$$