Alert archive / Ohio / Red Flag Warnings in 2020

Red Flag Warning 1, NWS Cleveland, OH

November 19, 202020 counties in Ohio

NWS Cleveland, OH issued this red flag warning at Nov 19, 2020, 1:41 PM EST for 20 counties in Ohio. It was in force for 5 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
Nov 19, 2020, 1:41 PM EST (18:41 UTC)
Expired
Nov 19, 2020, 7:00 PM EST
In force
5 hr
Issued by
NWS Cleveland, OH

Counties Ashland County, OH, Crawford County, OH, Cuyahoga County, OH, Erie County, OH, Hancock County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Lorain County, OH, Lucas County, OH, Marion County, OH, Medina County, OH, Morrow County, OH, Ottawa County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cleveland radar (KCLE), 82 km from the middle of the area, began a volume at 18:40 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

Detroit, MI (KDTX), launched 12:00Z, 6.7 hours before the alert went out and 196 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, Detroit, MI at 12:00Z on 2020-11-19Temperature 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, Detroit, MI at 12:00Z on 2020-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 626 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
1902 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
626 m²/s²
0-3 km storm-relative helicity
751 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

558 
WWUS81 KCLE 191841
RFWCLE

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cleveland OH
141 PM EST Thu Nov 19 2020

...RED FLAG WARNING IN EFFECT THIS AFTERNOON...

.Strong winds and low relative humidity this afternoon will 
cause any fires that occur to spread rapidly. Please refrain from
open burning and report any fires that you may see.

OHZ003-006>011-017>020-027>031-036>038-047-200000-
/O.NEW.KCLE.FW.W.0001.201119T1841Z-201120T0000Z/
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Hancock-Seneca-
Huron-Medina-Wyandot-Crawford-Richland-Ashland-Wayne-Marion-
Morrow-Holmes-Knox-
141 PM EST Thu Nov 19 2020

...RED FLAG WARNING IN EFFECT UNTIL 7 PM EST FOR WIND AND LOW 
RELATIVE HUMIDITY FOR MUCH OF THE REGION...

The National Weather Service in Cleveland has issued a Red Flag 
Warning for wind and low relative humidity, which is in effect
until 7 PM EST this evening.

* AFFECTED AREA...Fire Weather Zone 003 Lucas, Fire Weather Zone 
  006 Wood, Fire Weather Zone 007 Ottawa, Fire Weather Zone 008 
  Sandusky, Fire Weather Zone 009 Erie, Fire Weather Zone 010 
  Lorain, Fire Weather Zone 011 Cuyahoga, Fire Weather Zone 017 
  Hancock, Fire Weather Zone 018 Seneca, Fire Weather Zone 019 
  Huron, Fire Weather Zone 020 Medina, Fire Weather Zone 027 
  Wyandot, Fire Weather Zone 028 Crawford, Fire Weather Zone 029 
  Richland, Fire Weather Zone 030 Ashland, Fire Weather Zone 031 
  Wayne, Fire Weather Zone 036 Marion, Fire Weather Zone 037 
  Morrow, Fire Weather Zone 038 Holmes and Fire Weather Zone 047 
  Knox.

* TIMING...until 7 pm EST.

* WINDS...Southwest 20 to 30 mph with gusts up to 50 mph.

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

* TEMPERATURES...In the low 60s.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning is issued when critical fire weather
conditions are occurring or are imminent. A combination of winds,
low relative humidity, and warm temperatures can contribute to
extreme fire spread and fire behavior.

&&

$$

http://weather.gov/cleveland
1 follow-up statement
214 
WWUS81 KCLE 200009
RFWCLE

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cleveland OH
709 PM EST Thu Nov 19 2020

OHZ003-006>011-017>020-027>031-036>038-047-200115-
/O.EXP.KCLE.FW.W.0001.000000T0000Z-201120T0000Z/
Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Hancock-Seneca-
Huron-Medina-Wyandot-Crawford-Richland-Ashland-Wayne-Marion-
Morrow-Holmes-Knox-
709 PM EST Thu Nov 19 2020

...RED FLAG WARNING HAS EXPIRED...

Wind gusts will continue to subside this evening, and relative
humidity values will slowly rise above 30 percent over the next
several hours.

$$

http://weather.gov/cleveland

Nearby

Red Flag Warnings in Ohio, 2020Every red flag warning in 2020

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.