Alert archive / Oregon / Red Flag Warnings in 2018
Red Flag Warning 9, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Jul 19, 2018, 12:28 PM PDT for Coos County, Curry County, Josephine County, Oregon. It took effect at Jul 19, 2018, 9:00 PM PDT. 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
- Jul 19, 2018, 12:28 PM PDT (19:28 UTC)
- In effect from
- Jul 19, 2018, 9:00 PM PDT
- Expired
- Jul 20, 2018, 8:00 AM PDT
- In force
- 11 hr
- Issued by
- NWS Medford, OR
Counties Coos County, OR, Curry County, OR, Josephine County, OR
The radar
The Medford radar (KMAX), 121 km from the middle of the area, began a volume at 19:27 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
Medford/Jackson, OR (KMFR), launched 12:00Z, 7.5 hours before the alert went out and 100 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
- 1725 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
365 WWUS86 KMFR 191928 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1228 PM PDT Thu Jul 19 2018 ORZ618-619-201500- /O.NEW.KMFR.FW.W.0009.180720T0400Z-180720T1500Z/ Southern Oregon Coast-Western Rogue River-Siskiyou National Forest- 1228 PM PDT Thu Jul 19 2018 ...RED FLAG WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM PDT FRIDAY FOR NORTHEAST WIND WITH POOR OVERNIGHT HUMIDITY RECOVERY FOR PORTIONS OF FIRE WEATHER ZONES 618 AND 619... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 9 PM this evening to 8 AM PDT Friday. * Impacts: Northeast winds, poor overnight relative humidity recovery, and high fire danger will likely contribute to a significant spread of any new and existing fires. * Affected area: In Southwest OR...Elevations above 1500 feet in Fire Weather Zones 618 and 619. * Counties affected: In Southwest OR...Elevations above 1500 feet in Southern Curry County. * Wind: Northeast 10 to 20 mph with gusts up to 35 mph. * Humidity: 25 to 35 percent overnight. Precautionary/preparedness actions... Strong winds and low relative humidities will cause any existing or new fires to spread very rapidly. && $$ Visit us at www.weather.gov/Medford
3 follow-up statements
220 WWUS86 KMFR 192109 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 209 PM PDT Thu Jul 19 2018 ORZ620-201300- /O.NEW.KMFR.FW.W.0010.180720T2100Z-180721T0300Z/ Western Rogue Basin including the Illinois Valley- 209 PM PDT Thu Jul 19 2018 ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT FRIDAY FOR GUSTY WINDS WITH LOW HUMIDITY FOR PORTIONS OF FIRE WEATHER ZONE 620... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 2 PM to 8 PM PDT Friday. * Impacts: Gusty winds with low relative humidity and high fire danger could contribute to a significant spread of any new and existing fires. * Affected area: In Southwest OR...From Wilderville south to Obrien in the Illinois Valley portion of Fire Weather Zone 620. Other cities include Selma and Cave Junction. * Counties affected: In Southwest OR...Josephine and extreme Eastern Curry County. * Wind: North 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 12 to 15 percent. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr Precautionary/preparedness actions... Strong winds and low relative humidity can cause any new or existing fires to spread very rapidly. && $$ ORZ618-619-201300- /O.CON.KMFR.FW.W.0009.180720T0400Z-180720T1500Z/ Southern Oregon Coast-Western Rogue River-Siskiyou National Forest- 209 PM PDT Thu Jul 19 2018 ...RED FLAG WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM PDT FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR PORTIONS OF FIRE WEATHER ZONES 618 AND 619... The National Weather Service in Medford has issued a Red Flag Warning...which is in effect from 9 PM this evening to 8 AM PDT Friday. * Impacts: Northeast winds, poor overnight relative humidity recovery, and high fire danger will likely contribute to a significant spread of any new and existing fires. * Affected area: In Southwest OR...Elevations above 1500 feet in Fire Weather Zones 618 and 619. * Counties affected: In Southwest OR...Elevations above 1500 feet in Southern Curry County. * Wind: Northeast 10 to 20 mph with gusts up to 35 mph. * Humidity: 25 to 35 percent overnight. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr Precautionary/preparedness actions... Strong winds and low relative humidity can cause any new or existing fires to spread very rapidly. $$ Visit us at www.weather.gov/Medford
923 WWUS86 KMFR 201240 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 540 AM PDT Fri Jul 20 2018 ORZ618-619-201500- /O.CON.KMFR.FW.W.0009.000000T0000Z-180720T1500Z/ Southern Oregon Coast-Western Rogue River-Siskiyou National Forest- 540 AM PDT Fri Jul 20 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING FOR GUSTY WINDS AND LOW HUMIDITY FOR PORTIONS OF FIRE WEATHER ZONES 618 AND 619... * Impacts: East winds, poor relative humidity recovery, and high fire danger will likely contribute to a significant spread of new and existing fires and Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...Elevations above 1500 feet in Fire Weather Zone 618 and 619. * Counties affected: In Southwest OR...Elevations above 1500 feet in Southern Curry County. * Wind: Northeast 10 to 20 mph with gusts up to 35 mph. * Maximum Humidity: 25 to 35 percent this morning. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr $$ ORZ620-210045- /O.CON.KMFR.FW.W.0010.180720T2100Z-180721T0300Z/ Western Rogue Basin including the Illinois Valley- 540 AM PDT Fri Jul 20 2018 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING FOR GUSTY WINDS WITH LOW HUMIDITY FOR PORTIONS OF FIRE WEATHER ZONE 620... * Impacts: East winds, poor relative humidity recovery, and high fire danger will likely contribute to a significant spread of new and existing fires and Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...From Wilderville south to Obrien in the Illinois Valley portion of Fire Weather Zone 620. Other cities include Selma and Cave Junction. * Counties affected: In Southwest OR...Josephine and extreme eastern Curry County * Wind: North 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 12 percent. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr $$ Visit us at www.weather.gov/Medford
123 WWUS86 KMFR 201454 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 754 AM PDT Fri Jul 20 2018 ORZ618-619-201600- /O.EXP.KMFR.FW.W.0009.000000T0000Z-180720T1500Z/ Southern Oregon Coast-Western Rogue River-Siskiyou National Forest- 754 AM PDT Fri Jul 20 2018 ...RED FLAG WARNING WILL EXPIRE AT 8 AM PDT THIS MORNING FOR EAST WIND WITH POOR OVERNIGHT RH RECOVERY FOR FIRE WEATHER ZONES 618 AND 619... Gusty winds and low humidity will continue this morning but humidity will be above the 15% daytime critical fire weather conditions criteria. $$ ORZ620-210300- /O.CON.KMFR.FW.W.0010.180720T2100Z-180721T0300Z/ Western Rogue Basin including the Illinois Valley- 754 AM PDT Fri Jul 20 2018 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING FOR GUSTY WINDS WITH LOW HUMIDITY FOR PORTIONS OF FIRE WEATHER ZONE 620... * Impacts: East winds, poor relative humidity recovery, and high fire danger will likely contribute to a significant spread of new and existing fires and Strong, gusty wind with low relative humidity and high fire danger will likely contribute to a significant spread of new and existing fires. * Affected area: In Southwest OR...From Wilderville south to Obrien in the Illinois Valley portion of Fire Weather Zone 620. Other cities include Selma and Cave Junction. * Counties affected: In Southwest OR...Josephine and extreme eastern Curry County * Wind: North 10 to 15 mph with gusts up to 25 mph. * Humidity: As low as 12 percent. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr $$ Visit us at www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:09 PM PDT | Red Flag Warning | MFR | Curry, Jackson, Josephine | 31 hr |
Nearby
Red Flag Warnings in Oregon, 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.