Alert archive / Ohio / Frost Advisories in 2012

Frost Advisory 5, NWS Cleveland, OH

April 17, 201215 counties in Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this frost advisory at Apr 17, 2012, 3:26 AM EDT for 15 counties in Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Apr 18, 2012, 2:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 17, 2012, 3:26 AM EDT (07:26 UTC)
In effect from
Apr 18, 2012, 2:00 AM EDT
Expired
Apr 17, 2012, 9:32 PM EDT
In force
Issued by
NWS Cleveland, OH

Counties Ashland County, OH, Ashtabula County, OH, Cuyahoga County, OH, Geauga County, OH, Holmes County, OH, Lake County, OH, Lorain County, OH, Mahoning County, OH, Medina County, OH, Portage County, OH, Richland County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Wayne County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 44 km from the middle of the area, began a volume at 07:23 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 00:00Z, 7.4 hours before the alert went out and 143 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 00:00Z on 2012-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 57 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 00:00Z on 2012-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 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
57 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
1747 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
68 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.

056 
WWUS71 KCLE 170726
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
326 AM EDT TUE APR 17 2012


OHZ010>014-020>023-029>033-038-089-PAZ001>003-171530-
/O.NEW.KCLE.FR.Y.0005.120418T0600Z-120418T1300Z/
LORAIN-CUYAHOGA-LAKE-GEAUGA-ASHTABULA INLAND-MEDINA-SUMMIT-
PORTAGE-TRUMBULL-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-HOLMES-
ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...LORAIN...CLEVELAND...MENTOR...CHARDON...
JEFFERSON...MEDINA...AKRON...RAVENNA...WARREN...MANSFIELD...
ASHLAND...WOOSTER...CANTON...YOUNGSTOWN...MILLERSBURG...
ASHTABULA...ERIE...EDINBORO...MEADVILLE
326 AM EDT TUE APR 17 2012

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 9 AM EDT WEDNESDAY.

* TEMPERATURES...DROPPING TO 33 TO 35.

* TIMING...2 AM TO 9 AM WEDNESDAY MORNING.

* IMPACTS...UNPROTECTED TENDER VEGETATION COULD BE DAMAGED BY THE
  FROST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL INTERESTS IN
THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER
VEGETATION. ALSO, POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD BE
COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

&&

$$
3 follow-up statements
777 
WWUS71 KCLE 171550
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
1150 AM EDT TUE APR 17 2012

OHZ010>014-020>023-029>033-038-089-PAZ001>003-180000-
/O.CON.KCLE.FR.Y.0005.120418T0600Z-120418T1300Z/
LORAIN-CUYAHOGA-LAKE-GEAUGA-ASHTABULA INLAND-MEDINA-SUMMIT-
PORTAGE-TRUMBULL-RICHLAND-ASHLAND-WAYNE-STARK-MAHONING-HOLMES-
ASHTABULA LAKESHORE-NORTHERN ERIE-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...LORAIN...CLEVELAND...MENTOR...CHARDON...
JEFFERSON...MEDINA...AKRON...RAVENNA...WARREN...MANSFIELD...
ASHLAND...WOOSTER...CANTON...YOUNGSTOWN...MILLERSBURG...
ASHTABULA...ERIE...EDINBORO...MEADVILLE
1150 AM EDT TUE APR 17 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT
WEDNESDAY...

* TEMPERATURES...DROPPING TO 33 TO 35.

* TIMING...2 AM TO 9 AM WEDNESDAY MORNING.

* IMPACTS...UNPROTECTED TENDER VEGETATION COULD BE DAMAGED BY 
  THE FROST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL INTERESTS IN
THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER
VEGETATION. ALSO... POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

&&

$$
129 
WWUS71 KCLE 171937
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
337 PM EDT TUE APR 17 2012

OHZ010>013-020>022-029>033-038-172045-
/O.CAN.KCLE.FR.Y.0005.120418T0600Z-120418T1300Z/
LORAIN-CUYAHOGA-LAKE-GEAUGA-MEDINA-SUMMIT-PORTAGE-RICHLAND-
ASHLAND-WAYNE-STARK-MAHONING-HOLMES-
INCLUDING THE CITIES OF...LORAIN...CLEVELAND...MENTOR...CHARDON...
MEDINA...AKRON...RAVENNA...MANSFIELD...ASHLAND...WOOSTER...
CANTON...YOUNGSTOWN...MILLERSBURG
337 PM EDT TUE APR 17 2012

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS CANCELLED THE FROST
ADVISORY.

SKIES WILL BE MOSTLY CLOUDY THROUGH THE EVENING BEFORE GRADUALLY
CLEARING OUT AFTER MIDNIGHT. THIS WILL LIMIT COOLING WITH LOWS
ONLY REACHING THE UPPER 30S ACROSS MOST OF NORTHEAST OHIO.
ALTHOUGH PATCHY FROST WILL BE POSSIBLE TOWARDS DAWN...A WIDESPREAD
FROST IS NO LONGER EXPECTED.

$$

OHZ014-023-089-PAZ001>003-180345-
/O.CON.KCLE.FR.Y.0005.120418T0600Z-120418T1300Z/
ASHTABULA INLAND-TRUMBULL-ASHTABULA LAKESHORE-NORTHERN ERIE-
SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...WARREN...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
337 PM EDT TUE APR 17 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT
WEDNESDAY...

* TEMPERATURES...DROPPING TO 32 TO 36 DEGREES LATE TONIGHT.

* TIMING...2 AM TO 9 AM WEDNESDAY MORNING.

* IMPACTS...UNPROTECTED TENDER VEGETATION COULD BE DAMAGED BY 
  THE FROST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY IS ISSUED WHEN FROST IS EXPECTED TO DEVELOP
DURING THE GROWING SEASON. THOSE WITH AGRICULTURAL INTERESTS IN
THE WARNED AREA ARE ADVISED TO HARVEST OR PROTECT TENDER
VEGETATION. ALSO... POTTED PLANTS NORMALLY LEFT OUTDOORS SHOULD
BE COVERED OR BROUGHT INSIDE AWAY FROM THE COLD.

&&

$$
233 
WWUS71 KCLE 180132
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
932 PM EDT TUE APR 17 2012

OHZ014-023-089-PAZ001>003-180245-
/O.CAN.KCLE.FR.Y.0005.120418T0600Z-120418T1300Z/
ASHTABULA INLAND-TRUMBULL-ASHTABULA LAKESHORE-NORTHERN ERIE-
SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...WARREN...ASHTABULA...ERIE...
EDINBORO...MEADVILLE
932 PM EDT TUE APR 17 2012

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS CANCELLED THE FROST
ADVISORY.

CLOUDS CONTINUE TO HOLD ACROSS THE AREA AND THIS WILL KEEP THE
TEMPERATURES FROM DIPPING TO NEAR 30 DEGREES. THEREFORE...THE
FROST ADVISORY HAS BEEN CANCELLED. 

THERE MAY BE ENOUGH BREAKS IN THE HIGH CLOUD COVER TO ALLOW
TEMPERATURES TO DROP INTO THE MIDDLE 30S AND SOME PATCHY FROST IS
POSSIBLE.

$$

LOMBARDY

Nearby

Frost Advisories in Ohio, 2012Frost Advisories in Pennsylvania, 2012Every frost advisory 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.