Alert archive / California / Red Flag Warnings in 2012
Red Flag Warning 24, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Sep 5, 2012, 10:18 AM PDT for 4 counties in California; Washoe County, Nevada. It took effect at Sep 5, 2012, 8:00 PM PDT. It was in force for 7 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 5, 2012, 10:18 AM PDT (17:18 UTC)
- In effect from
- Sep 5, 2012, 8:00 PM PDT
- Expired
- Sep 6, 2012, 3:06 AM PDT
- In force
- 7 hr
- Issued by
- NWS Reno, NV
Counties Lassen County, CA, Modoc County, CA, Plumas County, CA, Sierra County, CA, Washoe County, NV
The nearest sounding before it
Reno, NV (KREV), launched 12:00Z, 5.3 hours before the alert went out and 219 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
- 2899 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
937 WWUS85 KREV 051718 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 1018 AM PDT WED SEP 5 2012 ...THUNDERSTORMS ACROSS NORTHEAST CALIFORNIA AND NORTHWEST NEVADA THIS EVENING INTO THURSDAY MORNING... .LOW PRESSURE WILL APPROACH THE CENTRAL CALIFORNIA COAST AND MOVE INLAND TONIGHT. THIS WILL PRODUCE ISOLATED TO SCATTERED DRY THUNDERSTORMS OVER NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA THIS EVENING THROUGH EARLY THURSDAY MORNING. STORMS WILL BE FAST MOVING AND PRODUCE LITTLE TO NO RAINFALL. IN ADDITION TO LIGHTNING...GUSTY AND ERRATIC OUTFLOW WINDS UP TO 45 MPH ARE EXPECTED NEAR STORMS. CAZ270-271-278-NVZ458-061500- /O.NEW.KREV.FW.W.0024.120906T0300Z-120906T1500Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY- NORTHERN WASHOE COUNTY- 1018 AM PDT WED SEP 5 2012 ...RED FLAG WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 AM PDT THURSDAY FOR THUNDERSTORMS AND STRONG OUTFLOW WINDS FOR THE SURPRISE VALLEY...WESTERN LASSEN...EASTERN PLUMAS...EASTERN SIERRA...EASTERN NEVADA COUNTIES IN CALIFORNIA...AND NORTHERN WASHOE COUNTY IN NEVADA... THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG WARNING FOR THUNDERSTORMS AND STRONG OUTFLOW WINDS...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 8 AM PDT THURSDAY. * AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA... FIRE ZONE 271 WESTERN LASSEN-EASTERN PLUMAS-EASTERN SIERRA- EASTERN NEVADA COUNTIES...FIRE ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * THUNDERSTORMS...ISOLATED TO SCATTERED WITH LITTLE TO NO RAINFALL. * OUTFLOW WINDS...GUSTY AND ERRATIC WINDS UP TO 45 MPH. * IMPACTS...LIGHTNING MAY CREATE NEW FIRE STARTS AND COMBINE WITH STRONG OUTFLOW WINDS TO PRODUCE RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES. && $$ HTTP://WEATHER.GOV/RENO
1 follow-up statement
416 WWUS85 KREV 061006 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 306 AM PDT THU SEP 6 2012 CAZ270-271-278-NVZ458-061115- /O.CAN.KREV.FW.W.0024.000000T0000Z-120906T1500Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY- NORTHERN WASHOE COUNTY- 306 AM PDT THU SEP 6 2012 ...RED FLAG WARNING IS CANCELLED FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA... THE NATIONAL WEATHER SERVICE IN RENO HAS CANCELLED THE RED FLAG WARNING. SHOWERS AND A FEW THUNDERSTORMS HAVE PUSHED OUT OF NORTHEAST CALIFORNIA AND INTO NORTHERN WASHOE COUNTY. LITTLE TO NO LIGHTNING HAS BEEN OBSERVED SINCE YESTERDAY EVENING. ADDITIONAL THUNDERSTORMS ARE UNLIKELY TO DEVELOP AS DRIER AIR MOVES INTO NORTHEAST CALIFORNIA AND NORTHWEST NEVADA THIS MORNING. $$ HTTP://WEATHER.GOV/RENO
Nearby
Red Flag Warnings in California, 2012Red Flag Warnings in Nevada, 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.