Alert archive / Ohio / Excessive Heat Warnings in 2011

Excessive Heat Warning 2, NWS Cleveland, OH

July 20, 201128 counties in Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this excessive heat warning at Jul 20, 2011, 2:15 PM EDT for 28 counties in Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Jul 21, 2011, 10:00 AM EDT. It was in force for 11 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 20, 2011, 2:15 PM EDT (18:15 UTC)
In effect from
Jul 21, 2011, 10:00 AM EDT
Expired
Jul 21, 2011, 9:00 PM EDT
In force
11 hr
Issued by
NWS Cleveland, OH
All 30 counties

Ashland County, OH, Ashtabula County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lake County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 34 km from the middle of the area, began a volume at 18:14 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.3 hours before the alert went out and 189 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2011-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 883 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2011-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
883 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
792 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

069 
WWUS71 KCLE 201815
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
215 PM EDT WED JUL 20 2011

OHZ003-006-017-210215-
/O.UPG.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
/O.NEW.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
/O.CON.KCLE.EH.W.0001.000000T0000Z-110721T0000Z/
LUCAS-WOOD-HANCOCK-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...FINDLAY
215 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED AN EXCESSIVE
HEAT WARNING...WHICH IS IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. 

THE PERIOD OF OPPRESSIVE HEAT AND HUMIDITY WILL PERSIST THROUGH
THURSDAY AFTERNOON WITH TEMPERATURES IN THE MIDDLE 90S TODAY AND
UPPER 90S ON THURSDAY. COMBINED WITH HIGH HUMIDITY LEVELS...THIS
WILL PUSH AFTERNOON HEAT INDEX VALUES TO BETWEEN 105 AND 115
DEGREES...WITH THE MOST EXTREME CONDITIONS ACROSS NORTHWEST OHIO
WHERE THE HUMIDITY IS HIGHER. THIS PROLONGED PERIOD OF DANGEROUSLY
HIGH HEAT AND HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT
ILLNESS. NIGHTTIME HEAT INDICES WILL FALL TO THE MIDDLE TO UPPER
70S WITH THE WARMEST READINGS IN URBAN AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

&&

$$

OHZ010-011-020-210215-
/O.UPG.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
/O.NEW.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
/O.EXA.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
LORAIN-CUYAHOGA-MEDINA-
INCLUDING THE CITIES OF...LORAIN...CLEVELAND...MEDINA
215 PM EDT WED JUL 20 2011

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED AN EXCESSIVE
HEAT WARNING...WHICH IS IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY. A HEAT ADVISORY HAS ALSO BEEN ISSUED. THIS HEAT
ADVISORY IS IN EFFECT UNTIL 8 PM EDT THIS EVENING. THE EXCESSIVE
HEAT WATCH IS NO LONGER IN EFFECT. 

TEMPERATURES IN THE LOWER 90S COMBINED WITH DEWPOINTS IN THE
MIDDLE 70S WILL PRODUCE HEAT INDEX VALUES AROUND 100 DEGREES THIS
AFTERNOON. THE PERIOD OF OPPRESSIVE HEAT AND HUMIDITY WILL PERSIST 
INTO THURSDAY AFTERNOON WITH TEMPERATURES EXPECTED TO REACH THE MIDDLE
TO UPPER 90S. COMBINED WITH HIGH HUMIDITY LEVELS...THIS WILL PUSH
AFTERNOON HEAT INDEX VALUES TO BETWEEN 105 AND 115 DEGREES
THURSDAY. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT AND
HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS. NIGHTTIME
HEAT INDICES WILL FALL TO THE MIDDLE TO UPPER 70S WITH THE WARMEST
READINGS IN URBAN AREAS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF
HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY
OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

&&

$$

OHZ007>009-018-019-027>031-036>038-047-210215-
/O.UPG.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
/O.NEW.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
/O.CON.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
OTTAWA-SANDUSKY-ERIE OH-SENECA-HURON-WYANDOT-CRAWFORD-RICHLAND-
ASHLAND-WAYNE-MARION-MORROW-HOLMES-KNOX-
INCLUDING THE CITIES OF...PORT CLINTON...FREMONT...SANDUSKY...
TIFFIN...NORWALK...UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...
ASHLAND...WOOSTER...MARION...MOUNT GILEAD...MILLERSBURG...
MOUNT VERNON
215 PM EDT WED JUL 20 2011

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED AN EXCESSIVE
HEAT WARNING...WHICH IS IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. 

TEMPERATURES WILL SOAR INTO THE LOWER 90S ACROSS NORTHERN OHIO
TODAY. THIS COMBINED WITH THE HIGH HUMIDITY WILL PUSH THE HEAT
INDEX TO BETWEEN 100 AND 105 DEGREES. TEMPERATURES WILL REACH THE
MIDDLE 90S ON THURSDAY WITH HEAT INDEX VALUES IN EXCESS OF 105
DEGREES. 

THE PERIOD OF OPPRESSIVE HEAT AND HUMIDITY WILL PERSIST 
INTO THURSDAY AFTERNOON WITH TEMPERATURES EXPECTED TO REACH THE MIDDLE
TO UPPER 90S. COMBINED WITH HIGH HUMIDITY LEVELS...THIS WILL PUSH
AFTERNOON HEAT INDEX VALUES TO BETWEEN 105 AND 115 DEGREES
THURSDAY. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT AND
HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS. NIGHTTIME
HEAT INDICES WILL FALL TO THE MIDDLE TO UPPER 70S WITH THE WARMEST
READINGS IN URBAN AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF
HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY
OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

&&

$$

OHZ012-013-021>023-032-033-210215-
/O.UPG.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
/O.NEW.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LAKE-GEAUGA-SUMMIT-PORTAGE-TRUMBULL-STARK-MAHONING-
INCLUDING THE CITIES OF...MENTOR...CHARDON...AKRON...RAVENNA...
WARREN...CANTON...YOUNGSTOWN
215 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED AN EXCESSIVE
HEAT WARNING...WHICH IS IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY. THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. 

THE PERIOD OF OPPRESSIVE HEAT AND HUMIDITY WILL PEAK ON THURSDAY
AFTERNOON WITH TEMPERATURES EXPECTED TO REACH THE MIDDLE TO UPPER
90S. COMBINED WITH HIGH HUMIDITY LEVELS...THIS WILL PUSH AFTERNOON
HEAT INDEX VALUES TO BETWEEN 105 AND 115 DEGREES. THIS PROLONGED
PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS. NIGHTTIME HEAT INDICES WILL FALL
TO THE MIDDLE TO UPPER 70S WITH THE WARMEST READINGS IN URBAN
AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

&&

$$

OHZ014-089-PAZ001>003-210215-
/O.UPG.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
/O.NEW.KCLE.HT.Y.0003.110721T1400Z-110722T0100Z/
ASHTABULA INLAND-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
215 PM EDT WED JUL 20 2011

...HEAT ADVISORY IN EFFECT FROM 10 AM TO 9 PM EDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 9 PM EDT THURSDAY.
THE EXCESSIVE HEAT WATCH IS NO LONGER IN EFFECT. 

THE PERIOD OF OPPRESSIVE HEAT AND HUMIDITY WILL PEAK ON THURSDAY
AFTERNOON WITH TEMPERATURES EXPECTED TO REACH THE LOWER TO MIDDLE
90S. COMBINED WITH HIGH HUMIDITY LEVELS...THIS WILL PUSH AFTERNOON
HEAT INDEX VALUES TO BETWEEN 100 AND 105 DEGREES. THIS PROLONGED
PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS. NIGHTTIME HEAT INDICES WILL FALL
TO THE MIDDLE TO UPPER 70S WITH THE WARMEST READINGS IN URBAN
AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF
HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY
OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

&&

$$
7 follow-up statements
283 
WWUS71 KCLE 201956
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
356 PM EDT WED JUL 20 2011

OHZ003-006-017-210400-
/O.CON.KCLE.EH.W.0001.000000T0000Z-110721T0000Z/
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LUCAS-WOOD-HANCOCK-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...FINDLAY
356 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM
EDT THURSDAY...

OPPRESSIVE HEAT AND HUMIDITY WILL CONTINUE TO PERSIST THROUGH
THURSDAY EVENING WITH TEMPERATURES PUSHING CLOSE TO 100 DEGREES. 
COMBINED WITH HIGH HUMIDITY LEVELS...AFTERNOON HEAT INDEX VALUES
BETWEEN 105 AND 110 DEGREES ARE LIKELY WEDNESDAY...WHILE HEAT
INDEX VALUES BETWEEN 105 AND 120 DEGREES ARE LIKELY THROUGHOUT
MUCH OF THE DAY THURSDAY. NIGHTTIME HEAT INDICES WILL FALL TO THE
LOWER 80S WITH THE WARMEST READINGS IN URBAN AREAS. THIS PROLONGED
PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ007>011-018>020-027>031-036>038-047-210400-
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
/O.CON.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-SENECA-HURON-MEDINA-
WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-MARION-MORROW-HOLMES-KNOX-
INCLUDING THE CITIES OF...PORT CLINTON...FREMONT...SANDUSKY...
LORAIN...CLEVELAND...TIFFIN...NORWALK...MEDINA...UPPER SANDUSKY...
CAREY...BUCYRUS...MANSFIELD...ASHLAND...WOOSTER...MARION...
MOUNT GILEAD...MILLERSBURG...MOUNT VERNON
356 PM EDT WED JUL 20 2011

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM
EDT THURSDAY...

TEMPERATURES IN THE LOWER TO MID 90S COMBINED WITH DEWPOINTS IN
THE MIDDLE 70S WILL PRODUCE HEAT INDEX VALUES BETWEEN 100 AND 104
DEGREES ON WEDNESDAY. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH
HEAT AND HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.
NIGHTTIME HEAT INDICES WILL FALL TO THE MIDDLE TO UPPER 70S WITH
THE WARMEST READINGS IN URBAN AREAS.

OPPRESSIVE HEAT AND HUMIDITY WILL CONTINUE TO PERSIST THROUGH
THURSDAY EVENING WITH TEMPERATURES PUSHING CLOSE TO 100 DEGREES. 
COMBINED WITH HIGH HUMIDITY LEVELS...AFTERNOON HEAT INDEX VALUES
BETWEEN 105 AND 110 DEGREES ARE LIKELY WEDNESDAY...WHILE HEAT
INDEX VALUES BETWEEN 105 AND 120 DEGREES ARE LIKELY THROUGHOUT
MUCH OF THE DAY THURSDAY. NIGHTTIME HEAT INDICES WILL FALL TO THE
LOWER 80S WITH THE WARMEST READINGS IN URBAN AREAS. THIS PROLONGED
PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON
RELATIVES AND NEIGHBORS.

&&

$$

OHZ012-013-021>023-032-033-210400-
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LAKE-GEAUGA-SUMMIT-PORTAGE-TRUMBULL-STARK-MAHONING-
INCLUDING THE CITIES OF...MENTOR...CHARDON...AKRON...RAVENNA...
WARREN...CANTON...YOUNGSTOWN
356 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM
EDT THURSDAY...

OPPRESSIVE HEAT AND HUMIDITY WILL CONTINUE TO PERSIST THROUGH
THURSDAY EVENING WITH TEMPERATURES PUSHING CLOSE TO 100 DEGREES. 
COMBINED WITH HIGH HUMIDITY LEVELS...AFTERNOON HEAT INDEX VALUES
BETWEEN 105 AND 110 DEGREES ARE LIKELY WEDNESDAY...WHILE HEAT
INDEX VALUES BETWEEN 105 AND 120 DEGREES ARE LIKELY THROUGHOUT
MUCH OF THE DAY THURSDAY. NIGHTTIME HEAT INDICES WILL FALL TO THE
LOWER 80S WITH THE WARMEST READINGS IN URBAN AREAS. THIS PROLONGED
PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ014-089-PAZ001>003-210400-
/O.CON.KCLE.HT.Y.0003.110721T1400Z-110722T0100Z/
ASHTABULA INLAND-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
356 PM EDT WED JUL 20 2011

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY...

THE PERIOD OF OPPRESSIVE HEAT AND HUMIDITY WILL PEAK ON THURSDAY
AFTERNOON WITH TEMPERATURES EXPECTED TO REACH THE LOWER TO MIDDLE
90S. COMBINED WITH HIGH HUMIDITY LEVELS...THIS WILL PUSH
AFTERNOON HEAT INDEX VALUES TO BETWEEN 100 AND 104 DEGREES. THIS
PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS. NIGHTTIME HEAT INDICES WILL FALL
TO THE MIDDLE TO UPPER 70S WITH THE WARMEST READINGS IN URBAN
AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON
RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

LEE
668 
WWUS71 KCLE 210015
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
815 PM EDT WED JUL 20 2011

OHZ003-006-017-210815-
/O.EXP.KCLE.EH.W.0001.000000T0000Z-110721T0000Z/
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LUCAS-WOOD-HANCOCK-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...FINDLAY
815 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM
EDT THURSDAY...
...EXCESSIVE HEAT WARNING HAS EXPIRED FOR THIS EVENING...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION ON
THURSDAY WITH TEMPERATURES APPROACHING 100 DEGREES. THESE HOT
TEMPERATURES COMBINED WITH VERY HIGH HUMIDITY LEVELS WILL PRODUCE
HEAT INDEX VALUES OF 105 TO 115 DEGREES FROM LATE MORNING INTO
THURSDAY EVENING. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT
AND HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

&&

$$

OHZ007>011-018>020-027>031-036>038-047-210815-
/O.EXP.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-SENECA-HURON-MEDINA-
WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-MARION-MORROW-HOLMES-KNOX-
INCLUDING THE CITIES OF...PORT CLINTON...FREMONT...SANDUSKY...
LORAIN...CLEVELAND...TIFFIN...NORWALK...MEDINA...UPPER SANDUSKY...
CAREY...BUCYRUS...MANSFIELD...ASHLAND...WOOSTER...MARION...
MOUNT GILEAD...MILLERSBURG...MOUNT VERNON
815 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM
EDT THURSDAY...
...HEAT ADVISORY HAS EXPIRED FOR THIS EVENING...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION ON
THURSDAY WITH TEMPERATURES IN THE MIDDLE AND UPPER 90S. THESE HOT
TEMPERATURES COMBINED WITH VERY HIGH HUMIDITY LEVELS WILL PRODUCE
HEAT INDEX VALUES OF 105 TO 110 DEGREES FROM LATE MORNING INTO
THURSDAY EVENING. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT
AND HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

&&

$$

OHZ012-013-021>023-032-033-210815-
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LAKE-GEAUGA-SUMMIT-PORTAGE-TRUMBULL-STARK-MAHONING-
INCLUDING THE CITIES OF...MENTOR...CHARDON...AKRON...RAVENNA...
WARREN...CANTON...YOUNGSTOWN
815 PM EDT WED JUL 20 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM TO 9 PM
EDT THURSDAY...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION ON
THURSDAY WITH TEMPERATURES IN THE MIDDLE AND UPPER 90S. THESE HOT
TEMPERATURES COMBINED WITH VERY HIGH HUMIDITY LEVELS WILL PRODUCE
HEAT INDEX VALUES OF 105 TO 110 DEGREES FROM LATE MORNING INTO
THURSDAY EVENING. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT
AND HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ014-089-PAZ001>003-210815-
/O.CON.KCLE.HT.Y.0003.110721T1400Z-110722T0100Z/
ASHTABULA INLAND-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
815 PM EDT WED JUL 20 2011

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 9 PM EDT
THURSDAY...

TEMPERATURES IN THE LOWER TO MIDDLE 90S COMBINED WITH VERY HIGH
HUMIDITY LEVELS WILL MAKE FOR A VERY HOT AFTERNOON. HEAT INDEX
VALUES OF 100 TO 104 DEGREES ARE LIKELY FROM LATE MORNING INTO
THURSDAY EVENING. TAKE PRECAUTIONS TO AVOID HEAT INDUCED ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON
RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$
770 
WWUS71 KCLE 210815
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
415 AM EDT THU JUL 21 2011

OHZ003-006>013-017>023-027>033-036>038-047-211615-
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-
HOLMES-KNOX-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON...
FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN...
UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND...
WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
415 AM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 9 PM EDT THIS EVENING...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION ON
THURSDAY WITH TEMPERATURES APPROACHING 100 DEGREES. THESE HOT
TEMPERATURES COMBINED WITH HIGH HUMIDITY LEVELS WILL PRODUCE HEAT
INDEX VALUES OF 105 TO 115 DEGREES FROM LATE MORNING INTO THURSDAY
EVENING. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT AND
HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ014-089-PAZ001>003-211615-
/O.CON.KCLE.HT.Y.0003.110721T1400Z-110722T0100Z/
ASHTABULA INLAND-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
415 AM EDT THU JUL 21 2011

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
9 PM EDT THIS EVENING...

TEMPERATURES IN THE LOWER TO MIDDLE 90S COMBINED WITH VERY HIGH
HUMIDITY LEVELS WILL MAKE FOR A VERY HOT AFTERNOON. HEAT INDEX
VALUES OF 100 TO 104 DEGREES ARE LIKELY FROM LATE MORNING INTO
THURSDAY EVENING. TAKE PRECAUTIONS TO AVOID HEAT INDUCED ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON
RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$
537 
WWUS71 KCLE 211349
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
949 AM EDT THU JUL 21 2011

OHZ003-006>013-017>023-027>033-036>038-047-212200-
/O.CON.KCLE.EH.W.0002.110721T1400Z-110722T0100Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-
HOLMES-KNOX-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON...
FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN...
UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND...
WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
949 AM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION THIS
AFTERNOON WITH NEAR RECORD HIGH TEMPERATURES APPROACHING 100
DEGREES. THESE HOT TEMPERATURES COMBINED WITH HIGH HUMIDITY LEVELS
WILL PRODUCE HEAT INDEX VALUES OF 105 TO 115 DEGREES FROM LATE
MORNING INTO THURSDAY EVENING. THIS PROLONGED PERIOD OF
DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A SIGNIFICANT RISK OF
HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ014-089-PAZ001>003-212200-
/O.CON.KCLE.HT.Y.0003.110721T1400Z-110722T0100Z/
ASHTABULA INLAND-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
949 AM EDT THU JUL 21 2011

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING...

NEAR RECORD HIGH TEMPERATURES IN THE MID 90S COMBINED WITH VERY
HIGH HUMIDITY LEVELS WILL MAKE FOR A VERY HOT AFTERNOON. HEAT
INDEX VALUES OF 100 TO 104 DEGREES ARE LIKELY FROM LATE MORNING
INTO THURSDAY EVENING. TAKE PRECAUTIONS TO AVOID HEAT INDUCED
ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON
RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$
524 
WWUS71 KCLE 211432
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
1032 AM EDT THU JUL 21 2011

OHZ014-089-PAZ001>003-212245-
/O.UPG.KCLE.HT.Y.0003.000000T0000Z-110722T0100Z/
/O.EXA.KCLE.EH.W.0002.000000T0000Z-110722T0100Z/
ASHTABULA INLAND-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
1032 AM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED AN EXCESSIVE
HEAT WARNING...WHICH IS IN EFFECT UNTIL 9 PM EDT THIS EVENING.
THE HEAT ADVISORY IS NO LONGER IN EFFECT. 

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION THIS
AFTERNOON WITH NEAR RECORD HIGH TEMPERATURES IN THE MID 90S.
THESE HOT TEMPERATURES COMBINED WITH HIGH HUMIDITY LEVELS WILL
PRODUCE HEAT INDEX VALUES OF 105 TO 110 DEGREES THIS AFTERNOON
INTO EVENING. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT AND
HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING IS ISSUED WHEN HIGH HUMIDITIES ARE
EXPECTED TO COMBINE WITH HOT TEMPERATURES TO MAKE IT FEEL LIKE IT
IS 105 DEGREES OR GREATER. PERSONS IN THE WARNING AREA ARE
ADVISED TO AVOID PROLONGED WORK IN SUN, OR IN POORLY VENTILATED
AREAS. ALSO, KEEP PLENTY OF LIQUIDS ON HAND AND TRY TO STAY IN AN
AIR CONDITIONED ENVIRONMENT.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ003-006>013-017>023-027>033-036>038-047-212245-
/O.CON.KCLE.EH.W.0002.000000T0000Z-110722T0100Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
HANCOCK-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-WYANDOT-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MARION-MORROW-
HOLMES-KNOX-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON...
FINDLAY...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN...
UPPER SANDUSKY...CAREY...BUCYRUS...MANSFIELD...ASHLAND...
WOOSTER...CANTON...YOUNGSTOWN...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
1032 AM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION THIS
AFTERNOON WITH NEAR RECORD HIGH TEMPERATURES APPROACHING 100
DEGREES. THESE HOT TEMPERATURES COMBINED WITH HIGH HUMIDITY LEVELS
WILL PRODUCE HEAT INDEX VALUES OF 105 TO 115 DEGREES THIS AFTERNOON
INTO THIS EVENING. EVEN LAKESHORE COMMUNITIES AND THE ISLANDS WILL
EXPERIENCE HEAT INDEX VALUES OVER 100 DEGREES. THIS PROLONGED
PERIOD OF DANGEROUSLY HIGH HEAT AND HUMIDITY WILL POSE A
SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$
614 
WWUS71 KCLE 211924
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
324 PM EDT THU JUL 21 2011

OHZ003-006>011-017>021-027>032-036>038-047-220330-
/O.NEW.KCLE.HT.Y.0004.110722T1400Z-110723T0100Z/
/O.CON.KCLE.EH.W.0002.000000T0000Z-110722T0100Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-HANCOCK-SENECA-
HURON-MEDINA-SUMMIT-WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-
MARION-MORROW-HOLMES-KNOX-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...FINDLAY...TIFFIN...
NORWALK...MEDINA...AKRON...UPPER SANDUSKY...CAREY...BUCYRUS...
MANSFIELD...ASHLAND...WOOSTER...CANTON...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
324 PM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
...HEAT ADVISORY IN EFFECT FROM 10 AM TO 9 PM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT FROM 10 AM TO 9 PM EDT FRIDAY. 

HIGH TEMPERATURES IN THE LOW TO MID 90S COMBINED WITH VERY HIGH
HUMIDITY LEVELS WILL MAKE FOR A VERY HOT AFTERNOON FRIDAY. HEAT INDEX
VALUES OF 100 TO 104 DEGREES ARE LIKELY FROM LATE FRIDAY MORNING
INTO FRIDAY EVENING. TAKE PRECAUTIONS TO AVOID HEAT INDUCED ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT
ILLNESSES ARE POSSIBLE. DRINK PLENTY OF FLUIDS...STAY IN AN AIR-
CONDITIONED ROOM...STAY OUT OF THE SUN...AND CHECK UP ON
RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$

OHZ012>014-022-023-033-089-PAZ001>003-220100-
/O.CON.KCLE.EH.W.0002.000000T0000Z-110722T0100Z/
LAKE-GEAUGA-ASHTABULA INLAND-PORTAGE-TRUMBULL-MAHONING-
ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...MENTOR...CHARDON...JEFFERSON...
RAVENNA...WARREN...YOUNGSTOWN...ASHTABULA...ERIE...EDINBORO...
MEADVILLE
324 PM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

OPPRESSIVE HEAT AND HUMIDITY WILL REMAIN ACROSS THE REGION THIS
AFTERNOON AND EVENING WITH NEAR RECORD HIGH TEMPERATURES
APPROACHING 100 DEGREES. THESE HOT TEMPERATURES COMBINED WITH HIGH
HUMIDITY LEVELS WILL PRODUCE HEAT INDEX VALUES OF 105 TO 115
DEGREES. THIS PROLONGED PERIOD OF DANGEROUSLY HIGH HEAT AND
HUMIDITY WILL POSE A SIGNIFICANT RISK OF HEAT ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT WARNING MEANS THAT A PROLONGED PERIOD OF
DANGEROUSLY HOT TEMPERATURES WILL OCCUR. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS
SITUATION IN WHICH HEAT-RELATED ILLNESSES ARE LIKELY. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY OUT OF
THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE. WHEN
POSSIBLE... RESCHEDULE STRENUOUS ACTIVITIES TO EARLY MORNING OR
EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT EXHAUSTION AND HEAT
STROKE. WEAR LIGHT WEIGHT AND LOOSE FITTING CLOTHING WHEN
POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS
IN SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY
HEAT SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE
IS AN EMERGENCY-CALL 911.

&&

$$
916 
WWUS71 KCLE 220111
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
911 PM EDT THU JUL 21 2011

OHZ003-006>011-017>021-027>032-036>038-047-220915-
/O.EXP.KCLE.EH.W.0002.000000T0000Z-110722T0100Z/
/O.CON.KCLE.HT.Y.0004.110722T1400Z-110723T0100Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-HANCOCK-SENECA-
HURON-MEDINA-SUMMIT-WYANDOT-CRAWFORD-RICHLAND-ASHLAND-WAYNE-STARK-
MARION-MORROW-HOLMES-KNOX-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...FINDLAY...TIFFIN...
NORWALK...MEDINA...AKRON...UPPER SANDUSKY...CAREY...BUCYRUS...
MANSFIELD...ASHLAND...WOOSTER...CANTON...MARION...MOUNT GILEAD...
MILLERSBURG...MOUNT VERNON
911 PM EDT THU JUL 21 2011

...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 9 PM EDT
FRIDAY...
...EXCESSIVE HEAT WARNING HAS EXPIRED FOR THIS EVENING...

HIGH TEMPERATURES IN THE LOW TO MID 90S COMBINED WITH VERY HIGH
HUMIDITY LEVELS WILL MAKE FOR A VERY HOT AFTERNOON FRIDAY. HEAT
INDEX VALUES OF 100 TO 104 DEGREES ARE LIKELY FROM LATE FRIDAY
MORNING INTO FRIDAY EVENING. TAKE PRECAUTIONS TO AVOID HEAT
INDUCED ILLNESS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN EXCESSIVE HEAT ADVISORY MEANS THAT A PERIOD OF
HOT TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT
TEMPERATURES AND HIGH HUMIDITY WILL COMBINE TO CREATE A
SITUATION IN WHICH HEAT ILLNESSES ARE POSSIBLE. DRINK
PLENTY OF FLUIDS...STAY IN AN AIR-CONDITIONED ROOM...STAY
OUT OF THE SUN...AND CHECK UP ON RELATIVES AND NEIGHBORS.

TAKE EXTRA PRECAUTIONS IF YOU WORK OR SPEND TIME OUTSIDE.
WHEN POSSIBLE, RESCHEDULE STRENUOUS ACTIVITIES TO EARLY
MORNING OR EVENING. KNOW THE SIGNS AND SYMPTOMS OF HEAT
EXHAUSTION AND HEAT STROKE. WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING WHEN POSSIBLE AND DRINK PLENTY OF WATER.

TO REDUCE RISK DURING OUTDOOR WORK THE OCCUPATIONAL SAFETY
AND HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT
REST BREAKS IN SHADED OR AIR CONDITIONED ENVIRONMENTS.
ANYONE OVERCOME BY HEAT SHOULD BE MOVED TO A COOL AND
SHADED LOCATION. HEAT STROKE IS AN EMERGENCY-CALL 911.

&&

$$

OHZ012>014-022-023-033-089-PAZ001>003-220215-
/O.EXP.KCLE.EH.W.0002.000000T0000Z-110722T0100Z/
LAKE-GEAUGA-ASHTABULA INLAND-PORTAGE-TRUMBULL-MAHONING-
ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...MENTOR...CHARDON...JEFFERSON...
RAVENNA...WARREN...YOUNGSTOWN...ASHTABULA...ERIE...EDINBORO...
MEADVILLE
911 PM EDT THU JUL 21 2011

...EXCESSIVE HEAT WARNING HAS EXPIRED...

TEMPERATURES FRIDAY AFTERNOON WILL BE SLIGHTLY COOLER BUT WILL
REMAIN WELL ABOVE SEASONAL AVERAGES. HUMIDITY LEVELS WILL REMAIN
ELEVATED AND WILL MAKE IT FEEL UNCOMFORTABLE AT TIMES.

$$

What forecasters said that day

The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this excessive heat warning went out at Jul 20, 1:10 PM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Jul 20, 1:10 PM EDT, 1 hour 5 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CLEVELAND OH
110 PM EDT WED JUL 20 2011

.SYNOPSIS...
A WEAK FRONT ACROSS THE LOCAL AREA WILL LIFT BACK NORTH TODAY AND
EVENTUALLY DISSIPATE. AN UPPER RIDGE WILL BUILD IN ACROSS THE AREA
AND ALLOW OPPRESSIVE HEAT TO CONTINUE THROUGH THE REST OF THE
WEEK. ANOTHER FRONT WILL IMPACT THE AREA FOR THE WEEKEND.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
CLOUDS ASSOCIATED WITH A DECAYING MCS WILL MOVE IN FROM THE W THIS
AFTERNOON...BRINGING SOME RELIEF TO THE EXCESSIVE HEAT OVER THE
AREA. TEMPS WILL STILL REACH THE 90S WITH HI VALUES RANGING FROM
THE UPPER 90S EAST TO 105 IN THE W. THE CLOUDS WILL CONTINUE TO
DISSIPATE AS THEY MOVE E INTO DRIER AIR. MOISTURE ADVECTION WILL
PICK UP LATER THIS AFTERNOON STARTING IN THE W WITH DEWPOINTS
EXPECTED TO GRADUALLY RISE.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY NIGHT/...
ISSUED A EXCESSIVE HEAT WATCH FOR TOMORROW FOR ENTIRE AREA.
TOMORROW WILL BE EVEN HOTTER THAN TODAY WITH HIGHS IN THE MID TO
UPPER 90S.  IN ADDITION DEW POINTS WILL CREEP INTO THE 70S ACROSS
THE FORECAST AREA PUSHING THE HEAT INDEX VALUES TO 105 DEGREE OR
HIGHER FOR ENTIRE AREA.   COLD FRONT SAGS INTO THE CENTRAL GREAT
LAKES FRIDAY STALLING NORTH OF LAKE ERIE GIVING A BETTER CHANCE OF
CONVECTION FRIDAY THROUGH SATURDAY.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
THE UPPER RIDGE SEEMS TO WANT TO SPLIT OVER THE WEEKEND... WITH THE
EASTERN BUBBLE SLIDING OFF THE EAST COAST AND THE MAIN RIDGE
REESTABLISHING ITSELF OVER THE PLAINS. THIS SHOULD ALLOW FOR THE
TROUGH ALOFT TO RETURN TO THE GREAT LAKES BY EARLY NEXT WEEK... AT
LEAST FOR A FEW DAYS.

THE MODELS HAVE BEEN CONSISTENT IN BRINGING A STRONGER COLD FRONT
THROUGH THE AREA SUNDAY NIGHT OR EARLY MONDAY. NOT SURE ABOUT THE
EXACT TIMING...WILL CONTINUE WITH A CHANCE OF SHOWERS/STORMS ON
SUNDAY AND SUNDAY NIGHT AND THEN DECREASE THE POP ON MONDAY WITH DRY
WEATHER AFTER THAT.

TEMPERATURES COULD POTENTIALLY STILL BE QUITE WARM AND HUMID ON
SUNDAY BUT WE SHOULD SLIDE BACK TO SEASONABLE LEVELS MONDAY AND
TUESDAY AFTER THE FRONTAL PASSAGE...PERHAPS EVEN A DEGREE OR TWO
BELOW NORMAL. AFTER MORE THAN A WEEK OF HOT WEATHER... IT WILL SEEM
REFRESHING.

&&

.AVIATION /17Z WEDNESDAY THROUGH SUNDAY/...
CONTINUED HAZY CONDITIONS FOR THE NEXT 24 HOURS. STILL
QUESTIONABLE IF LAKE BREEZE CAN MAKE IT ALL THE WAY TO CLE. HAVE
KEPT IT IN THE FORECAST FOR LATE IN THE AFTERNOON...BUT MAY JUST
END UP VRB05KT. MVFR VSBYS LIKELY AT MOST TAF SITES TONIGHT/EARLY
THURSDAY MORNING. SOUTHWEST FLOW WILL PICK UP A LITTLE MORE
THURSDAY...WITH SOME GUST TO 20KTS POSSIBLE.

OUTLOOK...POSSIBLE NON-VFR VSBY EACH EARLY MORNING IN FOG/HAZE.
SHOWERS/STORMS POSSIBLE FRIDAY THROUGH SUNDAY...MAINLY DURING THE
AFTERNOON/EVENING.

&&

.MARINE...
WEAK HIGH PRESSURE OVER THE EASTERN GREAT LAKES WILL LINGER TODAY
WITH A LIGHT GRADIENT AND ONSHORE FLOW DEVELOPING... ESPECIALLY EAST
OF LORAIN.

THE SOUTH TO SOUTHWEST FLOW SHOULD BEGIN TO PICK UP TONIGHT AND
ESPECIALLY ON THURSDAY AHEAD OF THE NEXT WEAK COLD FRONT. THE FRONT
COULD DRIFT SOUTH OF THE LAKE ON FRIDAY BUT NOT A LOT OF CONFIDENCE
IN WHERE EXACTLY THE BOUNDARY WILL BE ON FRIDAY AND SATURDAY. THE
GRADIENT SHOULD BE LIGHT BUT THE WIND DIRECTION/SPEED ON FRIDAY AND
SATURDAY COULD BE SOMEWHAT VARIABLE. SOUTHWEST FLOW SHOULD REDEVELOP
BY SUNDAY AHEAD OF THE NEXT COLD FRONT WHICH SHOULD BE A STRONGER
FRONT DUE SUNDAY NIGHT OR EARLY MONDAY.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...EXCESSIVE HEAT WATCH THURSDAY AFTERNOON FOR OHZ003-006>014-
     017>023-027>033-036>038-047-089.
     HEAT ADVISORY UNTIL 8 PM EDT THIS EVENING FOR OHZ007>009-018-
     019-027>031-036>038-047.
     EXCESSIVE HEAT WARNING UNTIL 8 PM EDT THIS EVENING FOR OHZ003-
     006-017.
PA...EXCESSIVE HEAT WATCH THURSDAY AFTERNOON FOR PAZ001>003.
MARINE...NONE.

&&

SYNOPSIS...JAMISON
NEAR TERM...JAMISON
SHORT TERM...DJB/JAMISON
LONG TERM...KOSARIK
AVIATION...OUDEMAN
MARINE...KOSARIK
Hazardous weather outlook, Jul 20, 4:01 AM EDT, 10 hours 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
401 AM EDT WED JUL 20 2011

OHZ009>014-019>023-029>033-037-038-047-089-PAZ001>003-210815-
ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-ASHTABULA INLAND-HURON-MEDINA-
SUMMIT-PORTAGE-TRUMBULL-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-MORROW-
HOLMES-KNOX-ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-
CRAWFORD PA-
401 AM EDT WED JUL 20 2011

...EXCESSIVE HEAT WATCH IN EFFECT THURSDAY AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
OHIO...NORTHEAST OHIO AND NORTHWEST PENNSYLVANIA.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

 EXCESSIVE HEAT WATCH THURSDAY AFTERNOON.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

OHZ003-006>008-017-018-027-028-036-210815-
LUCAS-WOOD-OTTAWA-SANDUSKY-HANCOCK-SENECA-WYANDOT-CRAWFORD-MARION-
401 AM EDT WED JUL 20 2011

...HEAT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...
...EXCESSIVE HEAT WATCH IN EFFECT THURSDAY AFTERNOON...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL OHIO AND
NORTHWEST OHIO.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   HEAT ADVISORY FOR TODAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   EXCESSIVE HEAT WATCH FOR THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

LEZ061-142>149-162>169-210815-
LAKE ERIE OPEN WATERS FROM RIPLEY TO BUFFALO NY-
MAUMEE BAY TO RENO BEACH OH-RENO BEACH TO THE ISLANDS OH-
THE ISLANDS TO VERMILION OH-VERMILION TO AVON POINT OH-
AVON POINT TO WILLOWICK OH-WILLOWICK TO GENEVA-ON-THE LAKE OH-GENEVA-
ON-THE-LAKE TO CONNEAUT OH-CONNEAUT OH TO RIPLEY NY-
LAKE ERIE OPEN WATERS FROM MAUMEE BAY TO RENO BEACH-
LAKE ERIE OPEN WATERS FROM RENO BEACH TO THE ISLANDS-
LAKE ERIE OPEN WATERS FROM THE ISLANDS TO VERMILION-
LAKE ERIE OPEN WATERS FROM VERMILION TO AVON POINT-
LAKE ERIE OPEN WATERS FROM AVON POINT TO WILLOWICK-
LAKE ERIE OPEN WATERS FROM WILLOWICK TO GENEVA-ON-THE-LAKE-
LAKE ERIE OPEN WATERS FROM GENEVA-ON-THE-LAKE TO CONNEAUT-
LAKE ERIE OPEN WATERS FROM CONNEAUT OH TO RIPLEY NY-
401 AM EDT WED JUL 20 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ERIE.

.DAY ONE...TODAY AND TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 3:49 AM EDTExcessive Heat WatchCLEAshland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more10 hr
Jul 20, 10:22 AM EDTExcessive Heat WarningCLEHancock, Lucas, Wood10 hr
Jul 20, 2:15 PM EDTHeat AdvisoryCLEAshtabula20 hr

Nearby

Excessive Heat Warnings in Ohio, 2011Excessive Heat Warnings in Pennsylvania, 2011Every excessive heat warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.