Alert archive / Pennsylvania / Red Flag Warnings in 2012

Red Flag Warning 2, NWS State College, PA

April 6, 201233 counties in Pennsylvania

NWS State College, PA issued this red flag warning at Apr 6, 2012, 11:01 AM EDT for 33 counties in Pennsylvania. It took effect at Apr 7, 2012, 11:00 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 6, 2012, 11:01 AM EDT (15:01 UTC)
In effect from: Apr 7, 2012, 11:00 AM EDT
Expired: Apr 7, 2012, 8:00 PM EDT
In force: 9 hr
Issued by: NWS State College, PA

All 33 counties

Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, McKean County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Warren County, PA, York County, PA

The radar

The State College radar (KCCX), 43 km from the middle of the area, began a volume at 15:00 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 3.0 hours before the alert went out and 201 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1668 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: -152 m²/s²
0-3 km storm-relative helicity: -134 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.

714 
WWUS81 KCTP 061501
RFWCTP

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1101 AM EDT FRI APR 6 2012

PAZ037-041-042-046-049>053-057>059-065-066-062315-
/O.NEW.KCTP.FW.W.0002.120407T1500Z-120408T0000Z/
/O.CON.KCTP.FW.W.0001.000000T0000Z-120407T0000Z/
TIOGA-NORTHERN LYCOMING-SULLIVAN-SOUTHERN LYCOMING-UNION-SNYDER-
MONTOUR-NORTHUMBERLAND-COLUMBIA-DAUPHIN-SCHUYLKILL-LEBANON-YORK-
LANCASTER-
1101 AM EDT FRI APR 6 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR EASTERN PENNSYLVANIA... 
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM EDT SATURDAY FOR
ALL OF CENTRAL PENNSYLVANIA...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM EDT SATURDAY.
A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING.

* AFFECTED AREA...TODAY...MUCH OF THE SUSQUEHANNA VALLEY AND
  NORTHEASTERN MOUNTAINS. SATURDAY...ALL OF CENTRAL PENNSYLVANIA
  WILL BE AFFECTED.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 25 MPH.

* TIMING...LATE MORNING THROUGH EARLY EVENING EACH DAY.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* TEMPERATURES...IN THE LOWER 40S.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED
  FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO GET OUT OF
  CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

PAZ004>006-010>012-017>019-024>028-033>036-045-056-063-064-062315-
/O.NEW.KCTP.FW.W.0002.120407T1500Z-120408T0000Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-SOUTHERN CLINTON-PERRY-
CUMBERLAND-ADAMS-
1101 AM EDT FRI APR 6 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM EDT SATURDAY FOR
ALL OF CENTRAL PENNSYLVANIA...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 11 AM TO 8 PM EDT
SATURDAY.

* AFFECTED AREA...ALL OF CENTRAL PENNSYLVANIA.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TIMING...FROM MID MORNING TO EARLY EVENING ON SATURDAY.

* RELATIVE HUMIDITY...AS LOW AS 22 PERCENT.

* TEMPERATURES...IN THE LOWER 50S.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED
  FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO GET OUT OF
  CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

DANGELO

5 follow-up statements

923 
WWUS81 KCTP 070542
RFWCTP

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
142 AM EDT SAT APR 7 2012

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-080000-
/O.CON.KCTP.FW.W.0002.120407T1500Z-120408T0000Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
142 AM EDT SAT APR 7 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM EDT THIS EVENING FOR ALL OF CENTRAL PENNSYLVANIA...

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM EDT THIS EVENING. 

* AFFECTED AREA...ALL OF CENTRAL PENNSYLVANIA.

* WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.

* TIMING...FROM MID MORNING TO EARLY EVENING ON SATURDAY.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* TEMPERATURES...HIGH TEMPERATURES IN THE MID 50S TO LOWER 60S.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF 
  UNCONTROLLED FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO 
  GET OUT OF CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

068 
WWUS81 KCTP 070758
RFWCTP

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
358 AM EDT SAT APR 7 2012

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-071600-
/O.NEW.KCTP.FW.A.0002.120408T1700Z-120409T0000Z/
/O.CON.KCTP.FW.W.0002.120407T1500Z-120408T0000Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
358 AM EDT SAT APR 7 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM EDT THIS EVENING FOR ALL OF CENTRAL PENNSYLVANIA...

...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH
SUNDAY EVENING FOR ALL OF CENTRAL PENNSYLVANIA...

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FIRE
WEATHER WATCH FOR CENTRAL PENNSYLVANIA...WHICH IS IN EFFECT
FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING. A RED FLAG WARNING
REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT THIS
EVENING. 

* AFFECTED AREA...ALL OF CENTRAL PENNSYLVANIA.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...FROM MID MORNING TO EARLY EVENING BOTH SATURDAY AND
  SUNDAY.

* RELATIVE HUMIDITY...AS LOW AS 15-20 PERCENT.

* TEMPERATURES...HIGH TEMPERATURES IN THE MID 50S TO LOWER 60S.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF 
  UNCONTROLLED FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO 
  GET OUT OF CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

$$

761 
WWUS81 KCTP 071500
RFWCTP

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1100 AM EDT SAT APR 7 2012

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-072300-
/O.CON.KCTP.FW.W.0002.000000T0000Z-120408T0000Z/
/O.CON.KCTP.FW.A.0002.120408T1700Z-120409T0000Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
1100 AM EDT SAT APR 7 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR ALL OF CENTRAL PENNSYLVANIA...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ALL OF CENTRAL PENNSYLVANIA...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING.
A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING. 

* AFFECTED AREA...ALL OF CENTRAL PENNSYLVANIA.

* WINDS...NORTHWEST 10 TO 20 MPH WITH FREQUENT GUSTS BETWEEN 20
  AND 30 MPH.

* TIMING...THROUGH EARLY EVENING TODAY...AND FROM MID MORNING TO
  EARLY EVENING ON SUNDAY.

* RELATIVE HUMIDITY...AS LOW AS 15-20 PERCENT.

* TEMPERATURES...HIGH TEMPERATURES IN THE MID 50S TO LOWER 60S.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF 
  UNCONTROLLED FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO 
  GET OUT OF CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

$$

239 
WWUS81 KCTP 071926
RFWCTP

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
326 PM EDT SAT APR 7 2012

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-080330-
/O.CON.KCTP.FW.W.0002.000000T0000Z-120408T0000Z/
/O.CON.KCTP.FW.A.0002.120408T1700Z-120409T0000Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
326 PM EDT SAT APR 7 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR ALL OF CENTRAL PENNSYLVANIA...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING FOR ALL OF CENTRAL PENNSYLVANIA...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING.
A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH SUNDAY EVENING. 

* AFFECTED AREA...ALL OF CENTRAL PENNSYLVANIA.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...THROUGH EARLY EVENING TODAY...AND FROM MID MORNING TO 
  EARLY EVENING ON SUNDAY. 

* RELATIVE HUMIDITY...AS LOW AS 15 TO 25 PERCENT.

* TEMPERATURES...IN THE UPPER 40S THIS EVENING AND IN THE 60S SUNDAY.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF 
  UNCONTROLLED FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO 
  GET OUT OF CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

$$

105 
WWUS81 KCTP 080027
RFWCTP

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE STATE COLLEGE PA
827 PM EDT SAT APR 7 2012

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-080830-
/O.EXP.KCTP.FW.W.0002.000000T0000Z-120408T0000Z/
/O.UPG.KCTP.FW.A.0002.120408T1700Z-120409T0000Z/
/O.NEW.KCTP.FW.W.0003.120408T1700Z-120409T0000Z/
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
827 PM EDT SAT APR 7 2012

...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM EDT SUNDAY FOR ALL
OF CENTRAL PENNSYLVANIA.
...RED FLAG WARNING FOR SATURDAY HAS EXPIRED FOR ALL OF CENTRAL
PENNSYLVANIA.

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A RED
FLAG WARNING FOR ALL OF CENTRAL PENNSYLVANIA...WHICH IS IN EFFECT FROM 1 PM
TO 8 PM EDT SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER IN
EFFECT.

* AFFECTED AREA...ALL OF CENTRAL PENNSYLVANIA.

* WINDS...WEST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...EARLY AFTERNOON INTO EARLY EVENING ON SUNDAY.

* RELATIVE HUMIDITY...AS LOW AS 20 PERCENT.

* TEMPERATURES...NEAR 60 NORTH AND TO UPPER 60S SOUTH.

* IMPACTS...THE POTENTIAL EXISTS FOR RAPID SPREAD IF UNCONTROLLED
  FIRES DEVELOP...OR EVEN FOR PRESCRIBED BURNS TO GET OUT OF
  CONTROL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 6, 4:19 AM EDT	Red Flag Warning	CTP	Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 7 more	16 hr
Apr 6, 11:05 AM EDT	Freeze Warning	CTP	Adams, Bedford, Blair, Cambria, Centre, Clearfield and 20 more	21 hr

Nearby

Red Flag Warnings in Pennsylvania, 2012 Every red flag 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.