Alert archive / Ohio / Red Flag Warnings in 2018

Red Flag Warning 3, NWS Charleston, WV

May 1, 20189 counties in Ohio

NWS Charleston, WV issued this red flag warning at May 1, 2018, 9:53 AM EDT for 9 counties in Ohio. It took effect at May 1, 2018, 12:00 PM EDT. It was in force for 8 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 1, 2018, 9:53 AM EDT (13:53 UTC)
In effect from
May 1, 2018, 12:00 PM EDT
Expired
May 1, 2018, 8:00 PM EDT
In force
8 hr
Issued by
NWS Charleston, WV

Counties Athens County, OH, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH, Washington County, OH

The radar

The Charleston,WV radar (KRLX), 108 km from the middle of the area, began a volume at 13:58 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 1.9 hours before the alert went out and 142 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, Cncnati-Daytn, OH at 12:00Z on 2018-05-01Temperature 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, Cncnati-Daytn, OH at 12:00Z on 2018-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
2976 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

825 
WWUS81 KRLX 011353
RFWRLX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Charleston WV
953 AM EDT Tue May 1 2018

OHZ066-067-075-076-083>086-012200-
/O.UPG.KRLX.FW.A.0002.180501T1600Z-180502T0000Z/
/O.NEW.KRLX.FW.W.0003.180501T1600Z-180502T0000Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
953 AM EDT Tue May 1 2018

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY...

The National Weather Service in Charleston has issued a Red Flag
Warning for gusty winds and low relative humidity, which is in 
effect until 8 PM EDT this evening. The Fire Weather Watch is no 
longer in effect.

* Affected Area...Fire Weather Zone 066 Perry, Fire Weather Zone 
  067 Morgan, Fire Weather Zone 075 Athens, Fire Weather Zone 
  076 Washington, Fire Weather Zone 083 Jackson OH, Fire Weather 
  Zone 084 Vinton, Fire Weather Zone 085 Meigs and Fire Weather 
  Zone 086 Gallia.

* Winds...Southwest 8 to 12 mph with gusts up to 20 mph.

* Timing...This afternoon and early evening.

* Relative Humidity...As low as 20 percent.

* Temperatures...In the upper 70s to around 80 degrees.

* Impacts...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$

OHZ087-012200-
/O.NEW.KRLX.FW.W.0003.180501T1600Z-180502T0000Z/
Lawrence OH-
953 AM EDT Tue May 1 2018

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY...

The National Weather Service in Charleston has issued a Red Flag
Warning for gusty winds and low relative humidity, which is in 
effect until 8 PM EDT this evening.

* Affected Area...Fire Weather Zone 087 Lawrence OH.

* Winds...Southwest 8 to 12 mph with gusts up to 20 mph.

* Timing...This afternoon and early evening.

* Relative Humidity...As low as 20 percent.

* Temperatures...In the upper 70s to around 80 degrees.

* Impacts...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$
2 follow-up statements
648 
WWUS81 KRLX 011811
RFWRLX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Charleston WV
211 PM EDT Tue May 1 2018

OHZ066-067-075-076-083>087-020000-
/O.CON.KRLX.FW.W.0003.000000T0000Z-180502T0000Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
Lawrence OH-
211 PM EDT Tue May 1 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...

* Affected Area...Fire Weather Zone 066 Perry, Fire Weather Zone 
  067 Morgan, Fire Weather Zone 075 Athens, Fire Weather Zone 
  076 Washington, Fire Weather Zone 083 Jackson OH, Fire Weather 
  Zone 084 Vinton, Fire Weather Zone 085 Meigs, Fire Weather 
  Zone 086 Gallia and Fire Weather Zone 087 Lawrence OH.

* Winds...Southwest 8 to 12 mph with gusts up to 20 mph.

* Timing...This afternoon and early evening.

* Relative Humidity...As low as 20 percent.

* Temperatures...In the upper 70s to around 80 degrees.

* Impacts...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$
570 
WWUS81 KRLX 020006
RFWRLX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Charleston WV
806 PM EDT Tue May 1 2018

OHZ066-067-075-076-083>087-020115-
/O.EXP.KRLX.FW.W.0003.000000T0000Z-180502T0000Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
Lawrence OH-
806 PM EDT Tue May 1 2018

...RED FLAG WARNING HAS EXPIRED FOR FOR GUSTY WINDS AND LOW
RELATIVE HUMIDITY FOR SOUTHEAST OHIO...

Winds were subsiding, and relative humidities were recovering as
temperatures fall. Therefore, the red flag warning has been
allowed to expire.

Always use caution when burning outside, and heed state and local
fire laws.

$$

TRM

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 1, 2:50 AM EDTFire Weather WatchRLXAthens, Gallia, Jackson, Meigs, Morgan, Perry and 2 more7 hr

Nearby

Red Flag Warnings in Ohio, 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.