Alert archive / California / Red Flag Warnings in 2012
Red Flag Warning 15, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Sep 4, 2012, 2:09 PM PDT for Modoc County, California. It took effect at Sep 5, 2012, 3:00 PM PDT. It was in force for 6 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
- Sep 4, 2012, 2:09 PM PDT (21:09 UTC)
- In effect from
- Sep 5, 2012, 3:00 PM PDT
- Expired
- Sep 5, 2012, 9:00 PM PDT
- In force
- 6 hr
- Issued by
- NWS Medford, OR
County Modoc County, CA
The radar
The Medford radar (KMAX), 174 km from the middle of the area, began a volume at 21:11 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, 9.2 hours before the alert went out and 192 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
- 1616 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
126 WWUS86 KMFR 042109 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 209 PM PDT TUE SEP 4 2012 CAZ285-051215- /O.UPG.KMFR.FW.A.0014.120905T2200Z-120906T0400Z/ /O.NEW.KMFR.FW.W.0015.120905T2200Z-120906T0400Z/ MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 209 PM PDT TUE SEP 4 2012 ...RED FLAG WARNING IN EFFECT FROM 3 PM TO 9 PM PDT WEDNESDAY FOR COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE ZONE 285... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 3 PM TO 9 PM PDT WEDNESDAY. THE FIRE WEATHER WATCH HAS BEEN UPGRADED. * AFFECTED AREA: FIRE ZONE 285...WHICH INCLUDES MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY. * WIND...SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH ARE EXPECTED. * HUMIDITY...MINIMUM RELATIVE HUMIDITIES WILL BE 5 TO 10 PERCENT WEDNESDAY AFTERNOON AND EVENING. * IMPACTS...THESE GUSTY WINDS AND LOW RELATIVE HUMIDITIES CREATE THE POTENTIAL FOR EXPLOSIVE WIND DRIVEN FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL CREATE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH. && $$ DW VISIT US AT WWW.WEATHER.GOV/MEDFORD
3 follow-up statements
425 WWUS86 KMFR 051200 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 500 AM PDT WED SEP 5 2012 CAZ285-060000- /O.CON.KMFR.FW.W.0015.120905T2200Z-120906T0400Z/ MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 500 AM PDT WED SEP 5 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 9 PM PDT THIS EVENING FOR COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE ZONE 285... * AFFECTED AREA: FIRE ZONE 285...WHICH INCLUDES MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY. * WIND...SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH ARE EXPECTED. * HUMIDITY...MINIMUM RELATIVE HUMIDITIES WILL BE 5 TO 10 PERCENT WEDNESDAY AFTERNOON AND EVENING. * IMPACTS...THESE GUSTY WINDS AND LOW RELATIVE HUMIDITIES CREATE THE POTENTIAL FOR EXPLOSIVE WIND DRIVEN FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL CREATE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH. && $$ VISIT US AT WWW.WEATHER.GOV/MEDFORD
835 WWUS86 KMFR 052156 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 256 PM PDT WED SEP 5 2012 CAZ285-060400- /O.CON.KMFR.FW.W.0015.120905T2200Z-120906T0400Z/ MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 256 PM PDT WED SEP 5 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE ZONE 285...INCLUDING THE MODOC NATIONAL FOREST... * AFFECTED AREA: FIRE ZONE 285...WHICH INCLUDES MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY. * WIND...SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH. * HUMIDITY...MINIMUM RELATIVE HUMIDITIES OF 3 TO 10 PERCENT WEDNESDAY AFTERNOON AND EVENING. * IMPACTS...THESE GUSTY WINDS AND LOW RELATIVE HUMIDITIES CREATE THE POTENTIAL FOR EXPLOSIVE WIND DRIVEN FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL CREATE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH. && $$ VISIT US AT WWW.WEATHER.GOV/MEDFORD STOCKTON
510 WWUS86 KMFR 060342 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 842 PM PDT WED SEP 5 2012 CAZ285-060445- /O.EXP.KMFR.FW.W.0015.000000T0000Z-120906T0400Z/ MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 842 PM PDT WED SEP 5 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR COMBINATION OF STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE ZONE 285...INCLUDING THE MODOC NATIONAL FOREST... THE RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING. WINDS ARE DIMINISHING AND HUMIDITIES ARE GRADUALLY RECOVERING OVER FIRE WEATHER ZONE 285. $$ SK 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 |
|---|---|---|---|---|
| Sep 4, 6:12 AM PDT | Fire Weather Watch | MFR | Modoc | 8 hr |
Nearby
Red Flag Warnings in California, 2012Every red flag warning in 2012
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.