Alert archive / Ohio / Excessive Heat Warnings in 2011

Excessive Heat Warning 1, NWS Cleveland, OH

July 20, 2011Hancock County, Lucas County, Wood County, Ohio

NWS Cleveland, OH issued this excessive heat warning at Jul 20, 2011, 10:22 AM EDT for Hancock County, Lucas County, Wood County, Ohio. It was in force for 10 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, 10:22 AM EDT (14:22 UTC)
Expired
Jul 20, 2011, 8:00 PM EDT
In force
10 hr
Issued by
NWS Cleveland, OH

Counties Hancock County, OH, Lucas County, OH, Wood County, OH

The radar

The Cleveland radar (KCLE), 144 km from the middle of the area, began a volume at 14:24 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

Detroit, MI (KDTX), launched 12:00Z, 2.4 hours before the alert went out and 153 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, Detroit, MI at 12:00Z on 2011-07-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 312 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2011-07-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939Sfc1 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
312 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

405 
WWUS71 KCLE 201422
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
1022 AM EDT WED JUL 20 2011

OHZ003-006-017-202230-
/O.UPG.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
/O.NEW.KCLE.EH.W.0001.110720T1422Z-110721T0000Z/
/O.CON.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
LUCAS-WOOD-HANCOCK-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...FINDLAY
1022 AM EDT WED JUL 20 2011

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED AN EXCESSIVE
HEAT WARNING...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING.
THE HEAT ADVISORY 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.

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN
WHICH HEAT-RELATED 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.

&&

$$

OHZ009-019-029>031-037-038-047-202230-
/O.EXA.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
/O.CON.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
ERIE OH-HURON-RICHLAND-ASHLAND-WAYNE-MORROW-HOLMES-KNOX-
INCLUDING THE CITIES OF...SANDUSKY...NORWALK...MANSFIELD...
ASHLAND...WOOSTER...MOUNT GILEAD...MILLERSBURG...MOUNT VERNON
1022 AM EDT WED JUL 20 2011

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

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A HEAT
ADVISORY...WHICH IS IN EFFECT UNTIL 8 PM EDT THIS EVENING. 

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. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL
COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT-RELATED
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.

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN
WHICH HEAT-RELATED 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.

&&

$$

OHZ007-008-018-027-028-036-202230-
/O.CON.KCLE.HT.Y.0002.000000T0000Z-110721T0000Z/
/O.CON.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
OTTAWA-SANDUSKY-SENECA-WYANDOT-CRAWFORD-MARION-
INCLUDING THE CITIES OF...PORT CLINTON...FREMONT...TIFFIN...
UPPER SANDUSKY...CAREY...BUCYRUS...MARION
1022 AM EDT WED JUL 20 2011

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

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. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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 WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN
WHICH HEAT-RELATED 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.

&&

$$

OHZ010>014-020>023-032-033-089-PAZ001>003-202230-
/O.CON.KCLE.EH.A.0001.110721T1600Z-110721T2200Z/
LORAIN-CUYAHOGA-LAKE-GEAUGA-ASHTABULA INLAND-MEDINA-SUMMIT-
PORTAGE-TRUMBULL-STARK-MAHONING-ASHTABULA LAKESHORE-NORTHERN ERIE-
SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...LORAIN...CLEVELAND...MENTOR...CHARDON...
JEFFERSON...MEDINA...AKRON...RAVENNA...WARREN...CANTON...
YOUNGSTOWN...ASHTABULA...ERIE...EDINBORO...MEADVILLE
1022 AM EDT WED JUL 20 2011

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

TEMPERATURES WILL SOAR INTO THE LOWER TO MID 90S ACROSS NORTHERN
OHIO AND NORTHWEST PENNSYLVANIA THURSDAY AFTERNOON. THIS COMBINED
WITH THE HIGH HUMIDITY WILL PUSH THE HEAT INDEX TO BETWEEN
105 AND 110 DEGREE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY WILL
COMBINE TO CREATE A DANGEROUS SITUATION IN WHICH HEAT-RELATED
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.

AN EXCESSIVE HEAT WATCH MEANS THAT A PROLONGED PERIOD OF HOT
TEMPERATURES IS EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND
HIGH HUMIDITY WILL COMBINE TO CREATE A DANGEROUS SITUATION IN
WHICH HEAT-RELATED 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.

&&

$$
3 follow-up statements
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.

&&

$$
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.

&&

$$

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, 7:39 AM EDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jul 20, 7:39 AM EDT, 2 hours 43 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CLEVELAND OH
739 AM EDT WED JUL 20 2011

.SYNOPSIS...
A WEAK FRONT WILL LIFT NORTH OF THE AREA LATER TODAY. A COLD FRONT
WILL STALL NORTH OF LAKE ERIE ON FRIDAY.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...
TODAY WILL BE EVEN HOTTER THAN YESTERDAY...BUT HIGHEST DEW POINT
WILL REMAIN OVER THE EXTREME WESTERN COUNTIES.  SO WILL KEEP HEAT
ADVISORY GOING IN THE WEST.

DO NOT EXPECT ANY CONVECTION TODAY.  REMNANTS OF THE TSRA CURRENTLY
MOVING ACROSS WISCONSIN SHOULD STAY WEST OF THE FORECAST AREA.  CAPE
INCREASES TO 1000-2000 J/KG THIS AFTERNOON...BUT SO CAPPED WITH
700MB TEMPS AT 12C WOULD NEED A BOUNDARY TO BREAK THE CAP.  ONLY
CHANCE MIGHT BE LAKESHORE EAST OF CLEVELAND AS A LAKE BREEZE WILL
DEVELOP THIS AFTERNOON...JUST DO NOT THINK IT WILL BE STRONG ENOUGH
TO BREAK THE CAP.

&&

.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 TUESDAY/...
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 /12Z WEDNESDAY THROUGH SUNDAY/...
EARLY MORNING FOG/HAZE WILL BURN OFF BY MID MORNING OTHERWISE VFR
TODAY WITH HIGH CLOUDS AND SOME AFTERNOON CUMULUS. A LAKE BREEZE
IS LIKELY NEAR LAKE ERIE.

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 OHZ003-006>008-
     017-018-027-028-036.
PA...EXCESSIVE HEAT WATCH THURSDAY AFTERNOON FOR PAZ001>003.
MARINE...NONE.

&&

SYNOPSIS...DJB
NEAR TERM...DJB
SHORT TERM...DJB
LONG TERM...KOSARIK
AVIATION...KOSARIK
MARINE...KOSARIK
Hazardous weather outlook, Jul 20, 4:01 AM EDT, 6 hours 21 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, 2:15 PM EDTExcessive Heat WarningCLEAshland, Ashtabula, Crawford, Cuyahoga, Erie, Geauga and 22 more31 hr
Jul 20, 2:15 PM EDTHeat AdvisoryCLEAshtabula20 hr

Nearby

Excessive Heat Warnings in Ohio, 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.