Alert archive / Ohio / Red Flag Warnings in 2018

Red Flag Warning 2, NWS Wilmington, OH

May 1, 201827 counties in Ohio; Fayette County, Union County, Wayne County, Indiana

NWS Wilmington, OH issued this red flag warning at May 1, 2018, 10:08 AM EDT for 27 counties in Ohio; Fayette County, Union County, Wayne County, Indiana. 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, 10:08 AM EDT (14:08 UTC)
In effect from
May 1, 2018, 12:00 PM EDT
Expired
May 1, 2018, 7:58 PM EDT
In force
8 hr
Issued by
NWS Wilmington, OH
All 30 counties

Fayette County, IN, Union County, IN, Wayne County, IN, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hardin County, OH, Hocking County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Ross County, OH, Scioto County, OH, Shelby County, OH, Union County, OH, Warren County, OH

The radar

The Cincinnati radar (KILN), 48 km from the middle of the area, began a volume at 14:14 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 2.1 hours before the alert went out and 47 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.

071 
WWUS81 KILN 011408
RFWILN

URGENT - FIRE WEATHER MESSAGE
National Weather Service Wilmington OH
1008 AM EDT Tue May 1 2018

INZ050-OHZ026-034-035-042>046-051-052-054>056-064-065-073-074-082-
012215-
/O.UPG.KILN.FW.A.0002.180501T1600Z-180502T0000Z/
/O.NEW.KILN.FW.W.0002.180501T1600Z-180502T0000Z/
Wayne-Hardin-Mercer-Auglaize-Darke-Shelby-Logan-Union OH-Delaware-
Miami-Champaign-Madison-Franklin OH-Licking-Pickaway-Fairfield-
Ross-Hocking-Pike-
1008 AM EDT Tue May 1 2018

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN PORTIONS OF THE
WHITEWATER VALLEY WEST CENTRAL OHIO THE SCIOTO VALLEY AND PORTIONS
OF SOUTHWEST OHIO...

The National Weather Service in Wilmington has issued a Red Flag
Warning for wind 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 026 Hardin...Fire Weather 
  Zone 034 Mercer...Fire Weather Zone 035 Auglaize...Fire 
  Weather Zone 042 Darke...Fire Weather Zone 043 Shelby...Fire 
  Weather Zone 044 Logan...Fire Weather Zone 045 Union OH...Fire 
  Weather Zone 046 Delaware...Fire Weather Zone 050 Wayne...Fire 
  Weather Zone 051 Miami...Fire Weather Zone 052 Champaign...
  Fire Weather Zone 054 Madison...Fire Weather Zone 055 Franklin 
  OH...Fire Weather Zone 056 Licking...Fire Weather Zone 064 
  Pickaway...Fire Weather Zone 065 Fairfield...Fire Weather Zone 
  073 Ross...Fire Weather Zone 074 Hocking and Fire Weather Zone 
  082 Pike.

* WINDS...Southwest 10 to 20 mph with gusts up to 25 mph.

* RELATIVE HUMIDITY...As low as 21 percent.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please avoid burning as conditions are favorable for rapid fire 
growth.

&&

$$

INZ058-059-OHZ053-060>063-070>072-088-012215-
/O.NEW.KILN.FW.W.0002.180501T1600Z-180502T0000Z/
Fayette IN-Union IN-Clark-Preble-Montgomery-Greene-Fayette OH-
Butler-Warren-Clinton-Scioto-
1008 AM EDT Tue May 1 2018

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR
WIND AND LOW RELATIVE HUMIDITY FOR NORTHERN PORTIONS OF THE
WHITEWATER VALLEY THE SCIOTO VALLEY AND PORTIONS OF SOUTHWEST AND
WEST CENTRAL OHIO...

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

* AFFECTED AREA...Fire Weather Zone 053 Clark...Fire Weather 
  Zone 058 Fayette IN...Fire Weather Zone 059 Union IN...Fire 
  Weather Zone 060 Preble...Fire Weather Zone 061 Montgomery...
  Fire Weather Zone 062 Greene...Fire Weather Zone 063 Fayette 
  OH...Fire Weather Zone 070 Butler...Fire Weather Zone 071 
  Warren...Fire Weather Zone 072 Clinton and Fire Weather Zone 
  088 Scioto.

* WINDS...Southwest 10 to 15 mph with gusts up to 25 mph.

* RELATIVE HUMIDITY...As low as 23 percent.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please avoid burning as conditions are favorable for rapid fire 
growth.

&&

$$
2 follow-up statements
335 
WWUS81 KILN 011941
RFWILN

URGENT - FIRE WEATHER MESSAGE
National Weather Service Wilmington OH
341 PM EDT Tue May 1 2018

...RED FLAG WARNING CONTINUES...

.Southwest winds 10-15 mph with gusts to 20 mph will begin to die
down late this afternoon. These winds coupled with a very dry
airmass has led to the continuation of a red flag warning.

INZ050-058-059-OHZ026-034-035-042>046-051>056-060>065-070>074-082-
088-020000-
/O.CON.KILN.FW.W.0002.000000T0000Z-180502T0000Z/
Wayne-Fayette IN-Union IN-Hardin-Mercer-Auglaize-Darke-Shelby-
Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-Franklin OH-
Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-Fairfield-
Butler-Warren-Clinton-Ross-Hocking-Pike-Scioto-
341 PM EDT Tue May 1 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF OHIO AND THE
NORTHERN WHITEWATER VALLEY...


* AFFECTED AREA...Fire Weather Zone 026 Hardin...Fire Weather 
  Zone 034 Mercer...Fire Weather Zone 035 Auglaize...Fire 
  Weather Zone 042 Darke...Fire Weather Zone 043 Shelby...Fire 
  Weather Zone 044 Logan...Fire Weather Zone 045 Union OH...Fire 
  Weather Zone 046 Delaware...Fire Weather Zone 050 Wayne...Fire 
  Weather Zone 051 Miami...Fire Weather Zone 052 Champaign...
  Fire Weather Zone 053 Clark...Fire Weather Zone 054 Madison...
  Fire Weather Zone 055 Franklin OH...Fire Weather Zone 056 
  Licking...Fire Weather Zone 058 Fayette IN...Fire Weather Zone 
  059 Union IN...Fire Weather Zone 060 Preble...Fire Weather 
  Zone 061 Montgomery...Fire Weather Zone 062 Greene...Fire 
  Weather Zone 063 Fayette OH...Fire Weather Zone 064 Pickaway...
  Fire Weather Zone 065 Fairfield... Fire Weather Zone 070 
  Butler...Fire Weather Zone 071 Warren... Fire Weather Zone 072 
  Clinton...Fire Weather Zone 073 Ross...Fire Weather Zone 074 
  Hocking...Fire Weather Zone 082 Pike and Fire Weather Zone 088 
  Scioto.

* WINDS...Southwest 10 to 15 mph with gusts up to 25 mph.

* RELATIVE HUMIDITY...As low as 24 percent.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Please avoid burning as conditions are favorable for rapid fire
growth.

&&

$$
932 
WWUS81 KILN 012358
RFWILN

URGENT - FIRE WEATHER MESSAGE
National Weather Service Wilmington OH
758 PM EDT Tue May 1 2018


INZ050-058-059-OHZ026-034-035-042>046-051>056-060>065-070>074-082-
088-020100-
/O.CAN.KILN.FW.W.0002.000000T0000Z-180502T0000Z/
Wayne-Fayette IN-Union IN-Hardin-Mercer-Auglaize-Darke-Shelby-
Logan-Union OH-Delaware-Miami-Champaign-Clark-Madison-Franklin OH-
Licking-Preble-Montgomery-Greene-Fayette OH-Pickaway-Fairfield-
Butler-Warren-Clinton-Ross-Hocking-Pike-Scioto-
758 PM EDT Tue May 1 2018

...RED FLAG WARNING WILL BE ALLOW TO EXPIRE AT 8 PM...

The National Weather Service in Wilmington has allowed the Red 
Flag Warning to expire.

Winds are starting to die down and as temperatures drop from
their highs of the day, the relative humidity is starting to 
recover. Therefore will allow the Red Flag Warning to end on time 
at 8 PM.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 8:22 PM EDTFire Weather WatchILNAdams, Auglaize, Champaign, Darke, Delaware, Fairfield and 14 more14 hr

Nearby

Red Flag Warnings in Ohio, 2018Red Flag Warnings in Indiana, 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.