Alert archive / Pennsylvania / Red Flag Warnings in 2018

Red Flag Warning 2, NWS State College, PA

May 2, 201831 counties in Pennsylvania

NWS State College, PA issued this red flag warning at May 2, 2018, 4:45 AM EDT for 31 counties in Pennsylvania. It took effect at May 2, 2018, 10:00 AM EDT. It was in force for 11 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
May 2, 2018, 4:45 AM EDT (08:45 UTC)
In effect from
May 2, 2018, 10:00 AM EDT
Expired
May 2, 2018, 9:00 PM EDT
In force
11 hr
Issued by
NWS State College, PA
All 31 counties

Adams County, PA, Bedford County, PA, Blair 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, Sullivan County, PA, Tioga County, PA, Union County, PA, Warren County, PA, York County, PA

The radar

The State College radar (KCCX), 49 km from the middle of the area, began a volume at 08:47 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 00:00Z, 8.8 hours before the alert went out and 204 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, Washington/Dulle, VA at 00:00Z on 2018-05-02Temperature 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, Washington/Dulle, VA at 00:00Z on 2018-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.1939Sfc1 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
3689 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

798 
WWUS81 KCTP 020845
RFWCTP

URGENT - FIRE WEATHER MESSAGE
National Weather Service State College PA
445 AM EDT Wed May 2 2018

PAZ006-012-018-019-025>028-034-035-037-041-042-045-046-049>053-
058-021645-
/O.NEW.KCTP.FW.W.0002.180502T1400Z-180503T0100Z/
Potter-Northern Clinton-Northern Centre-Southern Centre-Blair-
Huntingdon-Mifflin-Juniata-Bedford-Fulton-Tioga-Northern Lycoming-
Sullivan-Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
445 AM EDT Wed May 2 2018

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 9 PM EDT
THIS EVENING FOR PORTIONS OF CENTRAL PENNSYLVANIA...

The National Weather Service in State College has issued a Red
Flag Warning, which is in effect from 10 AM this morning to 9 PM
EDT this evening.

* AFFECTED AREA...Fire Weather Zones 006, 012, 018, 019, 025, 
  026, 027, 028, 034, 035, 037, 041, 042, 045, 046, 049, 050, 
  051, 052, 053 and 058.

* WINDS...Southwest 10 to 20 mph with gusts up to 30 mph.

* TIMING...Late morning through early evening.

* RELATIVE HUMIDITY...As low as 25 to 30 percent.

* TEMPERATURES...In the upper 70s to lower 80s.

* LIGHTNING...None.

* IMPACTS...The potential exists for rapid development and 
  spread of wild fires...or for prescribed burns to get out of 
  control. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor burning should be avoided. Contact your local fire
official to obtain information about burning regulations in your
area. Do not dispose of cigarette butts on the ground or outside
of your car.

&&

$$

Visit http://www.weather.gov/ctp for more information from the
National Weather Service office in State College.
2 follow-up statements
019 
WWUS81 KCTP 021242
RFWCTP

URGENT - FIRE WEATHER MESSAGE
National Weather Service State College PA
842 AM EDT Wed May 2 2018



PAZ036-056-057-059-063>066-022045-
/O.EXA.KCTP.FW.W.0002.180502T1400Z-180503T0100Z/
Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-Lancaster-
842 AM EDT Wed May 2 2018

...RED FLAG WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR FOR
PORTIONS OF SOUTHERN AND CENTRAL PENNSYLVANIA...

The National Weather Service in State College has issued a Red
Flag Warning, which is in effect until 9 PM EDT this evening. 

* AFFECTED AREA...Fire weather zones 036, 056, 057, 059, 063, 
  064, 065, and 066. 

* WINDS...Southwest 10 to 20 mph with gusts up to 30 mph.

* TIMING...Through early evening.

* RELATIVE HUMIDITY...As low as 25 to 30 percent.

* TEMPERATURES...In the upper 70s to lower 80s.

* LIGHTNING...None.

* IMPACTS...The potential exists for rapid development and 
  spread of wild fires...or for prescribed burns to get out of 
  control. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor burning should be avoided. Contact your local fire
official to obtain information about burning regulations in your
area. Do not dispose of cigarette butts on the ground or outside
of your car.

&&

$$

PAZ006-012-018-019-025>028-034-035-037-041-042-045-046-049>053-
058-022045-
/O.CON.KCTP.FW.W.0002.180502T1400Z-180503T0100Z/
Potter-Northern Clinton-Northern Centre-Southern Centre-Blair-
Huntingdon-Mifflin-Juniata-Bedford-Fulton-Tioga-Northern Lycoming-
Sullivan-Southern Clinton-Southern Lycoming-Union-Snyder-Montour-
Northumberland-Columbia-Schuylkill-
842 AM EDT Wed May 2 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING
FOR FOR PORTIONS OF SOUTHERN AND CENTRAL PENNSYLVANIA...

* AFFECTED AREA...Fire weather zones 006, 012, 018, 019, 025, 
  026, 027, 028, 034, 035, 037, 041, 042, 045, 046, 049, 050, 
  051, 052, 053, and 058. 

* WINDS...Southwest 10 to 20 mph with gusts up to 30 mph.

* TIMING...Through early evening.

* RELATIVE HUMIDITY...As low as 25 to 30 percent.

* TEMPERATURES...In the upper 70s to lower 80s.

* LIGHTNING...None.

* IMPACTS...The potential exists for rapid development and 
  spread of wild fires...or for prescribed burns to get out of 
  control. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor burning should be avoided. Contact your local fire
official to obtain information about burning regulations in your
area. Do not dispose of cigarette butts on the ground or outside
of your car.

&&

$$
540 
WWUS81 KCTP 022010
RFWCTP

URGENT - FIRE WEATHER MESSAGE
National Weather Service State College PA
410 PM EDT Wed May 2 2018


PAZ004-005-010-011-017-030100-
/O.EXA.KCTP.FW.W.0002.000000T0000Z-180503T0100Z/
Warren-McKean-Elk-Cameron-Clearfield-
410 PM EDT Wed May 2 2018

...RED FLAG WARNING IN EFFECT UNTIL 9 PM EDT THIS EVENING...

The National Weather Service in State College has issued a Red
Flag Warning, which is in effect until 9 PM EDT this evening.

* AFFECTED AREA...Fire Weather Zones 004, 005, 010, 011 and 017.

* WINDS...Southwest 10 to 20 mph with gusts up to 35 mph.

* TIMING...Through early evening.

* RELATIVE HUMIDITY...As low as 20 percent.

* TEMPERATURES...In the upper 70s.

* LIGHTNING...None.

* IMPACTS...The potential exists for rapid development and 
  spread of wild fires...or for prescribed burns to get out of 
  control. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor burning should be avoided. Contact your local fire
official to obtain information about burning regulations in your
area. Do not dispose of cigarette butts on the ground or outside
of your car.

&&

$$

PAZ006-012-018-019-025>028-034>037-041-042-045-046-049>053-
056>059-063>066-030100-
/O.CON.KCTP.FW.W.0002.000000T0000Z-180503T0100Z/
Potter-Northern Clinton-Northern Centre-Southern Centre-Blair-
Huntingdon-Mifflin-Juniata-Bedford-Fulton-Franklin-Tioga-
Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-
Union-Snyder-Montour-Northumberland-Columbia-Perry-Dauphin-
Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
410 PM EDT Wed May 2 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM EDT THIS EVENING...

* AFFECTED AREA...Fire Weather Zones 006, 012, 018, 019, 025, 
  026, 027, 028, 034, 035, 036, 037, 041, 042, 045, 046, 049, 
  050, 051, 052, 053, 056, 057, 058, 059, 063, 064, 065 and 066.

* WINDS...Southwest 5 to 15 mph with gusts up to 30 mph.

* TIMING...Through early evening.

* RELATIVE HUMIDITY...As low as 20 percent.

* TEMPERATURES...Around 80.

* LIGHTNING...None.

* IMPACTS...The potential exists for rapid development and 
  spread of wild fires...or for prescribed burns to get out of 
  control. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Outdoor burning should be avoided. Contact your local fire
official to obtain information about burning regulations in your
area. Do not dispose of cigarette butts on the ground or outside
of your car.

&&

$$

Visit http://www.weather.gov/ctp for more information from the
National Weather Service office in State College.

Nearby

Red Flag Warnings in Pennsylvania, 2018Every red flag warning in 2018

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.