Alert archive / Ohio / Heat Advisories in 2021

Heat Advisory 5, NWS Cleveland, OH

August 25, 2021Hancock County, Lucas County, Wood County, Ohio

NWS Cleveland, OH issued this heat advisory at Aug 25, 2021, 3:11 AM EDT for Hancock County, Lucas County, Wood County, Ohio. It took effect at Aug 25, 2021, 1:00 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Aug 25, 2021, 3:11 AM EDT (07:11 UTC)
In effect from
Aug 25, 2021, 1:00 PM EDT
Expired
Aug 25, 2021, 6:36 PM EDT
In force
6 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 07:14 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

Detroit, MI (KDTX), launched 00:00Z, 7.2 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 00:00Z on 2021-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3040 joules per kilogram.LCLEL10008507005003002001001 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, Detroit, MI at 00:00Z on 2021-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 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
3040 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

607 
WWUS71 KCLE 250711
NPWCLE

URGENT - WEATHER MESSAGE
National Weather Service Cleveland OH
311 AM EDT Wed Aug 25 2021

OHZ003-006-017-251515-
/O.NEW.KCLE.HT.Y.0005.210825T1700Z-210826T0100Z/
Lucas-Wood-Hancock-
Including the cities of Toledo, Bowling Green, Perrysburg, 
and Findlay
311 AM EDT Wed Aug 25 2021

...HEAT ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM EDT
THIS EVENING...

* WHAT...Heat index values up to 100 expected.

* WHERE...Lucas, Wood and Hancock Counties.

* WHEN...From 1 PM this afternoon to 9 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

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 lightweight and loose fitting clothing when
possible. 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 9 1 1.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
2 follow-up statements
742 
WWUS71 KCLE 251435
NPWCLE

URGENT - WEATHER MESSAGE
National Weather Service Cleveland OH
1035 AM EDT Wed Aug 25 2021

OHZ003-006-017-252245-
/O.CON.KCLE.HT.Y.0005.210825T1700Z-210826T0100Z/
Lucas-Wood-Hancock-
Including the cities of Toledo, Bowling Green, Perrysburg, 
and Findlay
1035 AM EDT Wed Aug 25 2021

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

* WHAT...Heat index values up to 100 expected.

* WHERE...Lucas, Wood and Hancock Counties.

* WHEN...From 1 PM this afternoon to 9 PM EDT this evening.

* IMPACTS...Hot temperatures and high humidity may cause heat 
  illnesses to occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

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 lightweight and loose fitting clothing when
possible. 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 9 1 1.

&&

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle
186 
WWUS71 KCLE 252236
NPWCLE

URGENT - WEATHER MESSAGE
National Weather Service Cleveland OH
636 PM EDT Wed Aug 25 2021

OHZ003-006-017-252345-
/O.CAN.KCLE.HT.Y.0005.000000T0000Z-210826T0100Z/
Lucas-Wood-Hancock-
Including the cities of Toledo, Bowling Green, Perrysburg, 
and Findlay
636 PM EDT Wed Aug 25 2021

...HEAT ADVISORY IS CANCELLED...

Temperatures and heat indices will continue to decrease this
evening.

$$

For more information from the National Weather Service visit
http://www.weather.gov/cle

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 25, 2:55 AM EDTSpecial Marine WarningCLE65 min
Aug 25, 3:01 AM EDTSpecial Weather StatementCLEErie, Huron59 min
Aug 25, 3:37 AM EDTSpecial Weather StatementCLEHancock, Wood53 min
Aug 25, 4:33 AM EDTSpecial Weather StatementCLELucas, Sandusky42 min
Aug 25, 4:59 AM EDTSpecial Marine WarningCLE91 min
Aug 25, 5:08 AM EDTSpecial Weather StatementCLEHuron, Seneca37 min
Aug 25, 5:17 AM EDTSpecial Weather StatementCLEHuron28 min
Aug 25, 5:47 AM EDTSpecial Weather StatementCLEHuron43 min
Aug 25, 5:55 AM EDTAreal Flood AdvisoryCLEAshland, Huron, Richland3 hr
Aug 25, 6:30 AM EDTSpecial Weather StatementCLECuyahoga, Lorain, Medina90 min
Aug 25, 6:33 AM EDTSpecial Marine WarningCLE87 min
Aug 25, 7:01 AM EDTAreal Flood AdvisoryCLELorain3 hr
Aug 25, 9:18 AM EDTSpecial Marine WarningCLE87 min
Aug 25, 10:27 AM EDTAreal Flood AdvisoryCLEErie, Ottawa, Sandusky, Wood3 hr
Aug 25, 11:54 AM EDTAreal Flood AdvisoryCLECrawford, Erie, Huron, Richland, Seneca3 hr
Aug 25, 3:10 PM EDTSpecial Weather StatementCLETrumbull50 min
Aug 25, 3:28 PM EDTAreal Flood AdvisoryCLETrumbull25 min
Aug 25, 3:53 PM EDTFlash Flood WarningCLETrumbull3 hr

Nearby

Heat Advisories in Ohio, 2021Every heat advisory in 2021

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.