Alert archive / Oklahoma / Red Flag Warnings in 2018
Red Flag Warning 13, NWS Norman, OK
NWS Norman, OK issued this red flag warning at Mar 23, 2018, 3:29 AM CDT for 13 counties in Oklahoma. It took effect at Mar 23, 2018, 12:00 PM CDT. 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
- Mar 23, 2018, 3:29 AM CDT (08:29 UTC)
- In effect from
- Mar 23, 2018, 12:00 PM CDT
- Expired
- Mar 23, 2018, 9:00 PM CDT
- In force
- 9 hr
- Issued by
- NWS Norman, OK
Counties Alfalfa County, OK, Beckham County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Major County, OK, Roger Mills County, OK, Washita County, OK, Woods County, OK, Woodward County, OK
The radar
The Vance AFB radar (KVNX), 136 km from the middle of the area, began a volume at 08:35 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
Norman, OK (KOUN), launched 00:00Z, 8.5 hours before the alert went out and 184 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2088 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 411 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
138 WWUS84 KOUN 230829 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 329 AM CDT Fri Mar 23 2018 ...Critical Fire Weather Conditions Expected Friday in Western Oklahoma... OKZ004>006-009>011-014>016-021-022-033-034-231630- /O.UPG.KOUN.FW.A.0013.180323T1700Z-180324T0200Z/ /O.NEW.KOUN.FW.W.0013.180323T1700Z-180324T0200Z/ Harper-Woods-Alfalfa-Ellis-Woodward-Major-Roger Mills-Dewey- Custer-Beckham-Washita-Harmon-Greer- 329 AM CDT Fri Mar 23 2018 ...RED FLAG WARNING IN EFFECT FROM NOON Friday TO 9 PM CDT THIS EVENING FOR BREEZY WINDS AND LOW RELATIVE HUMIDITY FOR WESTERN OKLAHOMA... The National Weather Service in Norman has issued a Red Flag Warning for breezy winds and low relative humidity, which is in effect from noon Friday to 9 PM CDT Friday evening. The Fire Weather Watch is no longer in effect. * TIMING...Noon Friday until 9 PM Friday evening. * WINDS...South 20 to 25 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...12 TO 20 percent. * TEMPERATURES...In the lower 90s. * IMPACTS...If fires start, they will be difficult to contain. 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. && $$
3 follow-up statements
064 WWUS84 KOUN 231531 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 1031 AM CDT Fri Mar 23 2018 ...Critical Fire Weather Conditions Expected Friday across Western Oklahoma... OKZ006-011-022-231645- /O.CAN.KOUN.FW.W.0013.180323T1700Z-180324T0200Z/ Alfalfa-Major-Washita- 1031 AM CDT Fri Mar 23 2018 ...RED FLAG WARNING IS CANCELLED FOR PORTIONS OF WESTERN OKLAHOMA... The National Weather Service in Norman has cancelled the Red Flag Warning. Fire weather conditions are expected to only be low to elevated across these locations. $$ OKZ004-005-009-010-014>016-021-033-034-240200- /O.CON.KOUN.FW.W.0013.180323T1700Z-180324T0200Z/ Harper-Woods-Ellis-Woodward-Roger Mills-Dewey-Custer-Beckham- Harmon-Greer- 1031 AM CDT Fri Mar 23 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR WESTERN OKLAHOMA... * TIMING...Noon Friday until 9 PM Friday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...13 to 20 percent. * TEMPERATURES...Mid 80s to low 90s. * IMPACTS...If fires start, they will be difficult to contain. 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. && $$ Mahale
296 WWUS84 KOUN 232118 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 418 PM CDT Fri Mar 23 2018 ...Critical Fire Weather Conditions Expected Friday across northwestern Oklahoma... OKZ015-016-021-033-034-232230- /O.CAN.KOUN.FW.W.0013.000000T0000Z-180324T0200Z/ Dewey-Custer-Beckham-Harmon-Greer- 418 PM CDT Fri Mar 23 2018 ...RED FLAG WARNING IS CANCELLED FOR PARTS OF WESTERN OKLAHOMA... The National Weather Service in Norman has cancelled the Red Flag Warning. Fire weather conditions are expected to only be low to elevated across these locations. $$ OKZ004-005-009-010-014-240200- /O.CON.KOUN.FW.W.0013.000000T0000Z-180324T0200Z/ Harper-Woods-Ellis-Woodward-Roger Mills- 418 PM CDT Fri Mar 23 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING FOR NORTHWESTERN OKLAHOMA... * TIMING...Through 9 PM Friday evening. * WINDS...Southwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 14 percent. * TEMPERATURES...85 to 90 degrees. * IMPACTS...If fires start, they will be difficult to contain. 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. && $$
669 WWUS84 KOUN 240202 RFWOUN URGENT - FIRE WEATHER MESSAGE National Weather Service Norman OK 902 PM CDT Fri Mar 23 2018 OKZ004-005-009-010-014-240315- /O.EXP.KOUN.FW.W.0013.000000T0000Z-180324T0200Z/ Harper-Woods-Ellis-Woodward-Roger Mills- 902 PM CDT Fri Mar 23 2018 ...RED FLAG WARNING HAS EXPIRED... Red Flag fire conditions are no longer expected. $$
Nearby
Red Flag Warnings in Oklahoma, 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.