Alert archive / Ohio / Freeze Warnings in 2012

Freeze Warning 10, NWS Cleveland, OH

April 28, 2012Crawford County, Erie County, Pennsylvania; 21 counties in Ohio

NWS Cleveland, OH issued this freeze warning at Apr 28, 2012, 3:58 PM EDT for Crawford County, Erie County, Pennsylvania; 21 counties in Ohio. It took effect at Apr 29, 2012, 12:00 AM EDT. It was in force for 9 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
Apr 28, 2012, 3:58 PM EDT (19:58 UTC)
In effect from
Apr 29, 2012, 12:00 AM EDT
Expired
Apr 29, 2012, 8:53 AM EDT
In force
9 hr
Issued by
NWS Cleveland, OH
All 23 counties

Ashland County, OH, Ashtabula County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Geauga County, OH, Huron County, OH, Lake County, OH, Lorain County, OH, Lucas County, OH, Mahoning County, OH, Medina County, OH, Ottawa County, OH, Portage County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Wood County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 12 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 185 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 2012-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -131 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2078 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
-131 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

278 
WWUS71 KCLE 281958
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
358 PM EDT SAT APR 28 2012

OHZ003-006>011-013-014-018>023-028>031-033-PAZ002-003-290400-
/O.UPG.KCLE.FZ.A.0006.120429T0400Z-120429T1300Z/
/O.NEW.KCLE.FZ.W.0010.120429T0400Z-120429T1300Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-GEAUGA-
ASHTABULA INLAND-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-MAHONING-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...CHARDON...JEFFERSON...
TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN...BUCYRUS...
MANSFIELD...ASHLAND...WOOSTER...YOUNGSTOWN...EDINBORO...MEADVILLE
358 PM EDT SAT APR 28 2012

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SUNDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT
SUNDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURES...FROM THE UPPER 20S TO THE LOWER 30S.

* TIMING...TEMPERATURES WILL BE NEAR OR BELOW FREEZING MAINLY
  BETWEEN 2 AM AND 9 AM.

* IMPACTS...UNPROTECTED SEASONAL AND TENDER OUTDOOR PLANTS COULD 
  BE DAMAGED OR KILLED BY FROST AND FREEZE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNED AREA YOU SHOULD PROTECT TENDER AND
SEASONAL VEGETATION. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE FROM THE COLD. STAY TUNED TO WEATHER
RADIO FOR FURTHER DETAILS OR UPDATES.

A FREEZE WARNING IS ISSUED WHEN FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. IF YOU ARE IN THE WARNED
AREA YOU SHOULD HARVEST OR PROTECT TENDER VEGETATION. ALSO...
POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT
INSIDE AWAY FROM THE COLD. STAY TUNED TO WEATHER RADIO FOR
FURTHER DETAILS OR UPDATES.

&&

$$
3 follow-up statements
971 
WWUS71 KCLE 290142
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
942 PM EDT SAT APR 28 2012

OHZ003-006>011-013-014-018>023-028>031-033-PAZ002-003-290945-
/O.CON.KCLE.FZ.W.0010.120429T0400Z-120429T1300Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-GEAUGA-
ASHTABULA INLAND-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-MAHONING-SOUTHERN ERIE-
CRAWFORD PA-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...CHARDON...JEFFERSON...
TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN...BUCYRUS...
MANSFIELD...ASHLAND...WOOSTER...YOUNGSTOWN...EDINBORO...MEADVILLE
942 PM EDT SAT APR 28 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT SUNDAY...

* TEMPERATURES...IN THE LOWER 30S.

* TIMING...TEMPERATURES WILL BE NEAR OR BELOW FREEZING MAINLY
  BETWEEN 3 AM AND 9 AM.

* IMPACTS...UNPROTECTED SEASONAL AND TENDER OUTDOOR PLANTS COULD 
  BE DAMAGED OR KILLED BY FROST AND FREEZE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNED AREA YOU SHOULD PROTECT TENDER AND
SEASONAL VEGETATION. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE FROM THE COLD. STAY TUNED TO WEATHER
RADIO FOR FURTHER DETAILS OR UPDATES.

A FREEZE WARNING IS ISSUED WHEN FREEZING TEMPERATURES ARE
FORECAST TO THREATEN OUTDOOR PLANTS. IF YOU ARE IN THE WARNED
AREA YOU SHOULD HARVEST OR PROTECT TENDER VEGETATION. ALSO...
POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE COVERED OR BROUGHT
INSIDE AWAY FROM THE COLD. STAY TUNED TO WEATHER RADIO FOR
FURTHER DETAILS OR UPDATES.

&&

$$
752 
WWUS71 KCLE 290855
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
455 AM EDT SUN APR 29 2012

OHZ012-089-PAZ001-291300-
/O.EXA.KCLE.FZ.W.0010.000000T0000Z-120429T1300Z/
LAKE-ASHTABULA LAKESHORE-NORTHERN ERIE-
INCLUDING THE CITIES OF...MENTOR...ASHTABULA...ERIE
455 AM EDT SUN APR 29 2012

...FREEZE WARNING IN EFFECT UNTIL 9 AM EDT THIS MORNING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT UNTIL 9 AM EDT THIS MORNING.

* TEMPERATURES...IN THE UPPER 20S AND LOWER 30S.

* TIMING...TEMPERATURES WILL BE NEAR OR BELOW FREEZING MAINLY 
  BETWEEN 3 AM AND 9 AM. 

* IMPACTS...UNPROTECTED SEASONAL AND TENDER OUTDOOR PLANTS COULD 
  BE DAMAGED OR KILLED BY FROST AND FREEZE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNED AREA YOU SHOULD PROTECT TENDER AND
SEASONAL VEGETATION. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE FROM THE COLD. STAY TUNED TO WEATHER
RADIO FOR FURTHER DETAILS OR UPDATES.

&&

$$

PAZ002-003-291700-
/O.NEW.KCLE.FZ.A.0007.120430T0400Z-120430T1300Z/
/O.CON.KCLE.FZ.W.0010.000000T0000Z-120429T1300Z/
SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...EDINBORO...MEADVILLE
455 AM EDT SUN APR 29 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH MONDAY
MORNING...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A FREEZE
WATCH FROM LATE TONIGHT THROUGH MONDAY MORNING.

* TEMPERATURES...IN THE LOWER 30S.

* TIMING...TEMPERATURES WILL BE NEAR OR BELOW FREEZING MAINLY 
  BETWEEN 3 AM AND 9 AM. 

* IMPACTS...UNPROTECTED SEASONAL AND TENDER OUTDOOR PLANTS COULD 
  BE DAMAGED OR KILLED BY FROST AND FREEZE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNED AREA YOU SHOULD PROTECT TENDER AND
SEASONAL VEGETATION. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE FROM THE COLD. STAY TUNED TO WEATHER
RADIO FOR FURTHER DETAILS OR UPDATES.

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD DAMAGE OR KILL CROPS AND OTHER SENSITIVE
VEGETATION.

&&

$$

OHZ003-006>011-013-014-018>023-028>031-033-291300-
/O.CON.KCLE.FZ.W.0010.000000T0000Z-120429T1300Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-GEAUGA-
ASHTABULA INLAND-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-MAHONING-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...CHARDON...JEFFERSON...
TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...WARREN...BUCYRUS...
MANSFIELD...ASHLAND...WOOSTER...YOUNGSTOWN
455 AM EDT SUN APR 29 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* TEMPERATURES...IN THE UPPER 20S AND LOWER 30S.

* TIMING...TEMPERATURES WILL BE NEAR OR BELOW FREEZING MAINLY 
  BETWEEN 3 AM AND 9 AM. 

* IMPACTS...UNPROTECTED SEASONAL AND TENDER OUTDOOR PLANTS COULD 
  BE DAMAGED OR KILLED BY FROST AND FREEZE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE WARNED AREA YOU SHOULD PROTECT TENDER AND
SEASONAL VEGETATION. POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE FROM THE COLD. STAY TUNED TO WEATHER
RADIO FOR FURTHER DETAILS OR UPDATES.

&&

$$
747 
WWUS71 KCLE 291253
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
853 AM EDT SUN APR 29 2012

PAZ002-003-292100-
/O.CAN.KCLE.FZ.W.0010.000000T0000Z-120429T1300Z/
/O.CON.KCLE.FZ.A.0007.120430T0400Z-120430T1300Z/
SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...EDINBORO...MEADVILLE
853 AM EDT SUN APR 29 2012

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...
...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS CANCELLED THE
FREEZE WARNING.

* TEMPERATURES...IN THE LOWER 30S LATE TONIGHT. 

* TIMING...TEMPERATURES WILL BE NEAR OR BELOW FREEZING MAINLY
  BETWEEN 3 AM AND 8 AM.

* IMPACTS...UNPROTECTED SEASONAL AND TENDER OUTDOOR PLANTS COULD 
  BE DAMAGED OR KILLED BY FROST AND FREEZE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS SUB-FREEZING TEMPERATURES ARE POSSIBLE.
THESE CONDITIONS COULD DAMAGE OR KILL CROPS AND OTHER SENSITIVE
VEGETATION.

&&

$$

OHZ003-006>014-018>023-028>031-033-089-PAZ001-291400-
/O.CAN.KCLE.FZ.W.0010.000000T0000Z-120429T1300Z/
LUCAS-WOOD-OTTAWA-SANDUSKY-ERIE OH-LORAIN-CUYAHOGA-LAKE-GEAUGA-
ASHTABULA INLAND-SENECA-HURON-MEDINA-SUMMIT-PORTAGE-TRUMBULL-
CRAWFORD-RICHLAND-ASHLAND-WAYNE-MAHONING-ASHTABULA LAKESHORE-
NORTHERN ERIE-
INCLUDING THE CITIES OF...TOLEDO...BOWLING GREEN...PORT CLINTON...
FREMONT...SANDUSKY...LORAIN...CLEVELAND...MENTOR...CHARDON...
JEFFERSON...TIFFIN...NORWALK...MEDINA...AKRON...RAVENNA...
WARREN...BUCYRUS...MANSFIELD...ASHLAND...WOOSTER...YOUNGSTOWN...
ASHTABULA...ERIE
853 AM EDT SUN APR 29 2012

...FREEZE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS CANCELLED THE
FREEZE WARNING.

TEMPERATURES HAVE WARMED ABOVE FREEZING.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 4:23 AM EDTFreeze WatchCLECrawford, Erie12 hr

Nearby

Freeze Warnings in Ohio, 2012Freeze Warnings in Pennsylvania, 2012Every freeze warning in 2012

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.