Alert archive / Pennsylvania / Frost Advisories in 2014

Frost Advisory 2, NWS Cleveland, OH

October 9, 2014Ashtabula County, Ohio; Crawford County, Erie County, Pennsylvania

NWS Cleveland, OH issued this frost advisory at Oct 9, 2014, 10:17 PM EDT for Ashtabula County, Ohio; Crawford County, Erie County, Pennsylvania. It took effect at Oct 10, 2014, 1:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 9, 2014, 10:17 PM EDT (02:17 UTC)
In effect from
Oct 10, 2014, 1:00 AM EDT
Expired
Oct 10, 2014, 9:00 AM EDT
In force
8 hr
Issued by
NWS Cleveland, OH

Counties Ashtabula County, OH, Crawford County, PA, Erie County, PA

The radar

The Cleveland radar (KCLE), 139 km from the middle of the area, began a volume at 02:14 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 (KAGC), launched 00:00Z, 2.3 hours before the alert went out and 167 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 2014-10-10Temperature 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 00:00Z on 2014-10-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939587897Sfc1 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
994 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
136 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.

435 
WWUS71 KCLE 100217
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
1017 PM EDT THU OCT 9 2014

...AREAS OF FROST ARE LIKELY OVERNIGHT...

.SKIES WILL START OFF MOSTLY CLEAR AND WITH LIGHT WINDS
TEMPERATURES WILL DROP INTO THE MID 30S. IT IS POSSIBLE THAT SOME
CLOUDS COULD DEVELOP DURING THE EARLY MORNING HOURS. IF THEY DO THAT
WILL HELP DECREASE THE AMOUNT OF FROST.

OHZ014-PAZ002-003-101030-
/O.NEW.KCLE.FR.Y.0002.141010T0500Z-141010T1300Z/
ASHTABULA INLAND-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...EDINBORO...MEADVILLE
1017 PM EDT THU OCT 9 2014

...FROST ADVISORY IN EFFECT UNTIL 9 AM EDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT UNTIL 9 AM EDT FRIDAY.

* TEMPERATURES...LOWS MAINLY IN THE MID 30S.

* TIMING...DURING THE EARLY MORNING HOURS OF FRIDAY.

* IMPACTS...ANY TENDER FLOWERS OR VEGETATION COULD BE DAMAGED.

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.

&&

$$
1 follow-up statement
454 
WWUS71 KCLE 100711
NPWCLE

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CLEVELAND OH
311 AM EDT FRI OCT 10 2014

...AREAS OF FROST LIKELY EARLY THIS MORNING...

.EALRY MORNING TEMPERATURES WILL BE IN THE MID AND UPPER 30S WITH
AREAS OF FROST. TEMPERATURES ARE NOT EXPECTED TO DROP MUCH MORE
THIS MORNING AS HIGH CLOUDS OVERSPREAD THE AREA.

OHZ014-PAZ002-003-101300-
/O.CON.KCLE.FR.Y.0002.000000T0000Z-141010T1300Z/
ASHTABULA INLAND-SOUTHERN ERIE-CRAWFORD PA-
INCLUDING THE CITIES OF...JEFFERSON...EDINBORO...MEADVILLE
311 AM EDT FRI OCT 10 2014

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* TEMPERATURES...LOWS MAINLY IN THE MID 30S.

* TIMING...DURING THE EARLY MORNING HOURS OF FRIDAY.

* IMPACTS...ANY TENDER FLOWERS OR VEGETATION COULD BE DAMAGED.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 3:50 PM EDTFrost AdvisoryCLEHancock, Lucas, Sandusky, Seneca, Wood, Wyandot17 hr

Nearby

Frost Advisories in Pennsylvania, 2014Frost Advisories in Ohio, 2014Every frost advisory in 2014

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.