Alert archive / California / Red Flag Warnings in 2012
Red Flag Warning 1, NWS Medford, OR
NWS Medford, OR issued this red flag warning at May 13, 2012, 2:51 PM PDT for Modoc County, Siskiyou County, California. It took effect at May 14, 2012, 11:00 AM PDT. 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
- May 13, 2012, 2:51 PM PDT (21:51 UTC)
- In effect from
- May 14, 2012, 11:00 AM PDT
- Expired
- May 14, 2012, 7:42 PM PDT
- In force
- 9 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Siskiyou County, CA
The radar
The Medford radar (KMAX), 105 km from the middle of the area, began a volume at 21:48 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, 9.9 hours before the alert went out and 130 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
- 2041 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
295 WWUS86 KMFR 132151 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 251 PM PDT SUN MAY 13 2012 CAZ282-132300- /O.CAN.KMFR.FW.A.0001.120514T1300Z-120515T0600Z/ SHASTA-TRINITY NATIONAL FOREST IN SISKIYOU COUNTY- 251 PM PDT SUN MAY 13 2012 ...FIRE WEATHER WATCH IS CANCELLED FOR SCATTERED THUNDERSTORMS AND DRY FUELS FOR FIRE ZONE 282 IN NORTHERN CALIFORNIA... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE FIRE WEATHER WATCH FOR FIRE ZONE 282. THUNDERSTORMS ARE STILL EXPECTED ACROSS FORE ZONE 282 ON MONDAY BUT FUELS MAY NOT HAVE DRIED ENOUGH YET FOR A WARNING. $$ CAZ284-141000- /O.UPG.KMFR.FW.A.0001.120514T1300Z-120515T0600Z/ /O.NEW.KMFR.FW.W.0001.120514T1300Z-120515T0600Z/ SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT SHASTA- 251 PM PDT SUN MAY 13 2012 ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 11 PM PDT MONDAY FOR SCATTERED THUNDERSTORMS AND DRY FUELS FOR FIRE ZONE 284 IN NORTHERN CALIFORNIA... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG WARNING FOR SCATTERED THUNDERSTORMS WITH DRY FUELS FOR FIRE ZONE 284...WHICH IS IN EFFECT FROM 6 AM TO 11 PM PDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA: FIRE WEATHER ZONES 284. * TIMING...ISOLATED THUNDERSTORMS COULD BEGIN AS EARLY AS MONDAY MORNING. THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE TO SCATTERED MONDAY AFTERNOON THROUGH MONDAY EVENING. * RAINFALL POTENTIAL...THE THUNDERSTORMS WILL PRODUCE LITTLE OR NO RAINFALL INITIALLY. HOWEVER AROUND A TENTH OF AN INCH OF RAIN IS POSSIBLE UNDERNEATH THE CORES OF THUNDERSTORMS BY MONDAY EVENING. * IMPACTS...IN ADDITION TO LIGHTNING POSSIBLY STARTING FIRES IN DRIER LOCATIONS...GUSTY AND ERRATIC WINDS ARE LIKELY NEAR THE STORMS. THIS WILL INCREASE THE POTENTIAL FOR FIRE SPREAD IF FIRE STARTS OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL CREATE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH. && $$ CAZ285-141000- /O.UPG.KMFR.FW.A.0001.120514T1300Z-120515T0800Z/ /O.NEW.KMFR.FW.W.0001.120514T1300Z-120515T0600Z/ MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 251 PM PDT SUN MAY 13 2012 ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 11 PM PDT MONDAY FOR SCATTERED THUNDERSTORMS AND DRY FUELS FOR FIRE ZONE 285 IN NORTHERN CALIFORNIA... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS ISSUED A RED FLAG WARNING FOR SCATTERED THUNDERSTORMS WITH DRY FUELS FOR FIRE ZONE 285...WHICH IS IN EFFECT FROM 6 AM TO 11 PM PDT MONDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA: FIRE ZONE 285 * TIMING...ISOLATED THUNDERSTORMS COULD BEGIN AS EARLY AS MONDAY MORNING. THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE TO SCATTERED MONDAY AFTERNOON THROUGH MONDAY EVENING. * RAINFALL POTENTIAL...THE THUNDERSTORMS WILL PRODUCE LITTLE OR NO RAINFALL INITIALLY. HOWEVER AROUND A TENTH OF AN INCH OF RAIN IS POSSIBLE UNDERNEATH THE CORES OF THUNDERSTORMS BY EARLY MONDAY EVENING. * IMPACTS...IN ADDITION TO LIGHTNING POSSIBLY STARTING FIRES IN DRY LOCATIONS...GUSTY AND ERRATIC WINDS ARE LIKELY NEAR THE STORMS. THIS WILL INCREASE THE POTENTIAL FOR FIRE SPREAD IF FIRE STARTS OCCUR. 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. && $$ FB VISIT US AT WWW.WEATHER.GOV/MEDFORD
4 follow-up statements
874 WWUS86 KMFR 140951 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 251 AM PDT MON MAY 14 2012 CAZ284-285-142200- /O.CON.KMFR.FW.W.0001.120514T1300Z-120515T0600Z/ SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT SHASTA-MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 251 AM PDT MON MAY 14 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR SCATTERED THUNDERSTORMS AND DRY FUELS FOR FIRE ZONE 284 IN NORTHERN CALIFORNIA... * AFFECTED AREA: FIRE WEATHER ZONES 284. * TIMING...ISOLATED THUNDERSTORMS COULD BEGIN AS EARLY AS MONDAY MORNING. THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE TO SCATTERED MONDAY AFTERNOON THROUGH MONDAY EVENING. * RAINFALL POTENTIAL...THE THUNDERSTORMS WILL PRODUCE LITTLE OR NO RAINFALL INITIALLY. HOWEVER AROUND A TENTH OF AN INCH OF RAIN IS POSSIBLE UNDERNEATH THE CORES OF THUNDERSTORMS BY MONDAY EVENING. * IMPACTS...IN ADDITION TO LIGHTNING POSSIBLY STARTING FIRES IN DRIER LOCATIONS...GUSTY AND ERRATIC WINDS ARE LIKELY NEAR THE STORMS. THIS WILL INCREASE THE POTENTIAL FOR FIRE SPREAD IF FIRE STARTS OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL CREATE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH. && $$ VISIT US AT WWW.WEATHER.GOV/MEDFORD
847 WWUS86 KMFR 141230 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 530 AM PDT MON MAY 14 2012 CAZ284-285-150000- /O.EXT.KMFR.FW.W.0001.120514T1800Z-120515T0600Z/ SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT SHASTA-MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 530 AM PDT MON MAY 14 2012 ...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR SCATTERED THUNDERSTORMS WITH DRY FUELS FOR FIRE ZONES 284 AND 285 IN NORTHERN CALIFORNIA... THE RED FLAG WARNING IS NOW IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING. * AREAS AFFECTED: FIRE WEATHER ZONES 284 AND 285...ESPECIALLY THE HIGHER TERRAIN AREAS AND EAST SLOPES. * TIMING...ALTHOUGH IT IS POSSIBLE FOR ISOLATED DRY THUNDERSTORMS THIS MORNING...IT IS MOST LIKELY THAT THUNDERSTORMS WILL BEGIN THIS AFTERNOON PERSISTING INTO THIS EVENING. ISOLATED THUNDERSTORMS ARE MOST LIKELY TO INCREASE TO SCATTERED COVERAGE AFTER 2 PM PDT...PERSISTING INTO THIS EVENING. * RAINFALL POTENTIAL...INITIALLY...THE THUNDERSTORMS WILL PRODUCE LITTLE OR NO RAINFALL. LATER THIS AFTERNOON AND EVENING AROUND A TENTH OF AN INCH OF RAIN IS POSSIBLE UNDERNEATH THE CORES OF THUNDERSTORMS BY MONDAY EVENING. SOME THUNDERSTORMS ARE LIKELY TO PRODUCE HAIL. * STORM MOTION...STORM MOTION IS LIKELY TO BE TO THE NORTHWEST AND WEST AT 20 TO 30 MPH INITIALLY...TRANSITIONING TO SOUTHWEST 20 TO 30 MPH THIS EVENING. * IMPACTS...IN ADDITION TO LIGHTNING POSSIBLY STARTING FIRES IN DRIER LOCATIONS...ERRATIC WINDS COULD GUST INTO THE 30 TO 40 MPH RANGE IN AND NEAR THE THUNDERSTORMS. THIS WILL INCREASE THE POTENTIAL FOR FIRE SPREAD IF FIRE STARTS OCCUR. 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. && $$ BTL VISIT US AT WWW.WEATHER.GOV/MEDFORD
883 WWUS86 KMFR 142321 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 421 PM PDT MON MAY 14 2012 CAZ284-285-150600- /O.CON.KMFR.FW.W.0001.000000T0000Z-120515T0600Z/ SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT SHASTA-MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 421 PM PDT MON MAY 14 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR SCATTERED THUNDERSTORMS WITH DRY FUELS FOR FIRE ZONES 284 AND 285 IN NORTHERN CALIFORNIA... * AREAS AFFECTED: FIRE WEATHER ZONES 284 AND 285...ESPECIALLY THE HIGHER TERRAIN AREAS AND EAST SLOPES. * TIMING...THUNDERSTORMS JUST SOUTH OF THE AREA MAY DRIFT INTO THE AREA THIS EVENING. * RAINFALL POTENTIAL...A TENTH OF AN INCH OF RAIN IS POSSIBLE UNDERNEATH THE CORES OF THUNDERSTORMS THIS EVENING. SOME THUNDERSTORMS ARE LIKELY TO PRODUCE HAIL. * STORM MOTION...STORM MOTION WILL BE TO THE NORTHWEST AND WEST AT 20 TO 30 MPH. * IMPACTS...IN ADDITION TO LIGHTNING POSSIBLY STARTING FIRES IN DRIER LOCATIONS...ERRATIC WINDS COULD GUST INTO THE 30 TO 40 MPH RANGE IN AND NEAR THE THUNDERSTORMS. THIS WILL INCREASE THE POTENTIAL FOR FIRE SPREAD IF FIRE STARTS OCCUR. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. THESE CONDITIONS WILL CREATE THE POTENTIAL FOR EXPLOSIVE FIRE GROWTH. && $$ VISIT US AT WWW.WEATHER.GOV/MEDFORD
932 WWUS86 KMFR 150242 RFWMFR URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE MEDFORD OR 742 PM PDT MON MAY 14 2012 CAZ284-285-150345- /O.CAN.KMFR.FW.W.0001.000000T0000Z-120515T0600Z/ SISKIYOU COUNTY FROM THE CASCADE MOUNTAINS EAST AND SOUTH TO MT SHASTA-MODOC COUNTY EXCEPT FOR THE SURPRISE VALLEY- 742 PM PDT MON MAY 14 2012 ...RED FLAG WARNING IS CANCELLED FOR SCATTERED THUNDERSTORMS WITH DRY FUELS FOR FIRE ZONES 284 AND 285 IN NORTHERN CALIFORNIA... THE NATIONAL WEATHER SERVICE IN MEDFORD HAS CANCELLED THE RED FLAG WARNING. THE ATMOSPHERE IS STABILIZING AND THE THREAT FOR THUNDERSTORMS HAS DIMINISHED. $$ SK VISIT US AT WWW.WEATHER.GOV/MEDFORD
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.