Alert archive / Ohio / Wind Advisories in 2012

Wind Advisory 9, NWS Pittsburgh, PA

November 12, 2012Lawrence County, Mercer County, Venango County, Pennsylvania; 4 counties in Ohio

NWS Pittsburgh, PA issued this wind advisory at Nov 12, 2012, 9:44 AM EST for Lawrence County, Mercer County, Venango County, Pennsylvania; 4 counties in Ohio. It took effect at Nov 12, 2012, 10:00 AM EST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Nov 12, 2012, 9:44 AM EST (14:44 UTC)
In effect from
Nov 12, 2012, 10:00 AM EST
Expired
Nov 12, 2012, 2:56 PM EST
In force
5 hr
Issued by
NWS Pittsburgh, PA

Counties Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Tuscarawas County, OH, Lawrence County, PA, Mercer County, PA, Venango County, PA

The radar

The Pittsburgh radar (KPBZ), 59 km from the middle of the area, began a volume at 14:46 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, 2.7 hours before the alert went out and 75 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 2012-11-12Temperature 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 2012-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 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
1356 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
343 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.

038 
WWUS71 KPBZ 121444
NPWPBZ

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
944 AM EST MON NOV 12 2012

...A STRONG COLD FRONT WILL BRING GUSTY WINDS INTO THE AFTERNOON
TODAY...

OHZ039>041-048-PAZ007-008-013-122100-
/O.NEW.KPBZ.WI.Y.0009.121112T1500Z-121112T2100Z/
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-MERCER-VENANGO-LAWRENCE-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...DOVER...
UHRICHSVILLE...CARROLLTON...EAST LIVERPOOL...SALEM...COLUMBIANA...
EAST PALESTINE...WELLSVILLE...CALCUTTA...COSHOCTON...SHARON...
HERMITAGE...GROVE CITY...GREENVILLE...FARRELL...OIL CITY...
FRANKLIN...SUGARCREEK...NEW CASTLE...ELLWOOD CITY
944 AM EST MON NOV 12 2012

...WIND ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM EST THIS AFTERNOON. 

* WINDS...SOUTH 15 TO 25 MPH WITH BRIEF GUSTS UP TO 50
  MPH...SHIFTING TO WEST THIS AFTERNOON. 

* TIMING...THROUGH 4 PM.

* IMPACTS...SOME MINOR LIMB DAMAGE POSSIBLE. LOOSE ITEMS MAY BE
  BLOWN AROUND AND DRIVING MAY BE LOCALLY DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT WIND GUSTS GREATER THAN 45 MPH ARE
EXPECTED. WIND THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$
1 follow-up statement
874 
WWUS71 KPBZ 121956
NPWPBZ

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PITTSBURGH PA
256 PM EST MON NOV 12 2012

OHZ039>041-048-PAZ007-008-013-122100-
/O.CAN.KPBZ.WI.Y.0009.000000T0000Z-121112T2100Z/
TUSCARAWAS-CARROLL-COLUMBIANA-COSHOCTON-MERCER-VENANGO-LAWRENCE-
INCLUDING THE CITIES OF...NEW PHILADELPHIA...DOVER...
UHRICHSVILLE...CARROLLTON...EAST LIVERPOOL...SALEM...COLUMBIANA...
EAST PALESTINE...WELLSVILLE...CALCUTTA...COSHOCTON...SHARON...
HERMITAGE...GROVE CITY...GREENVILLE...FARRELL...OIL CITY...
FRANKLIN...SUGARCREEK...NEW CASTLE...ELLWOOD CITY
256 PM EST MON NOV 12 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS CANCELLED THE WIND
ADVISORY. 

$$

Nearby

Wind Advisories in Ohio, 2012Wind Advisories in Pennsylvania, 2012Every wind 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.