Alert archive / California / Red Flag Warnings in 2012
Red Flag Warning 25, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Sep 8, 2012, 2:43 PM PDT for Washoe County, Nevada; 4 counties in California. It took effect at Sep 9, 2012, 1:00 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 8, 2012, 2:43 PM PDT (21:43 UTC)
- In effect from
- Sep 9, 2012, 1:00 PM PDT
- Expired
- Sep 9, 2012, 8:00 PM 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 radar
The Reno radar (KRGX), 119 km from the middle of the area, began a volume at 21:46 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
Reno, NV (KREV), launched 12:00Z, 9.7 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
- 2592 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
477 WWUS85 KREV 082143 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 243 PM PDT SAT SEP 8 2012 ...GUSTY WINDS AND LOW HUMIDITY SUNDAY... .LOW PRESSURE WILL MOVE ACROSS NORTHEAST CALIFORNIA AND NORTHERN NEVADA SUNDAY...PRODUCING GUSTY WINDS AND LOW HUMIDITY. THIS COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS ACROSS PORTIONS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA SUNDAY AFTERNOON AND EARLY EVENING. CAZ270-271-278-NVZ450-458-091400- /O.UPG.KREV.FW.A.0018.120909T2000Z-120910T0300Z/ /O.NEW.KREV.FW.W.0025.120909T2000Z-120910T0300Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY- WESTERN NEVADA SIERRA FRONT-NORTHERN WASHOE COUNTY- 243 PM PDT SAT SEP 8 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 8 PM PDT SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA AND THE WESTERN NEVADA SIERRA FRONT... THE NATIONAL WEATHER SERVICE IN RENO HAS UPGRADED THE FIRE WEATHER WATCH TO A RED FLAG WARNING FOR GUSTY WINDS AND LOW HUMIDITY...WHICH IS IN EFFECT FROM 1 PM TO 8 PM PDT SUNDAY. * 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...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...SOUTHWEST TO WEST 15 TO 20 MPH WITH GUSTS UP TO 35 MPH. * HUMIDITY...FALLING TO 5 TO 15 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES. && $$ HTTP://WEATHER.GOV/RENO
3 follow-up statements
474 WWUS85 KREV 091031 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 331 AM PDT SUN SEP 9 2012 ...GUSTY WINDS AND LOW HUMIDITY TODAY... .LOW PRESSURE WILL MOVE NEAR THE OREGON BORDER TODAY...PRODUCING GUSTY WINDS AND LOW HUMIDITY. THIS COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS ACROSS PORTIONS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA THIS AFTERNOON AND EARLY EVENING. CAZ270-271-278-NVZ450-458-092300- /O.CON.KREV.FW.W.0025.120909T2000Z-120910T0300Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY- WESTERN NEVADA SIERRA FRONT-NORTHERN WASHOE COUNTY- 331 AM PDT SUN SEP 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA AND THE WESTERN NEVADA SIERRA FRONT... * AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA... FIRE ZONE 271 WESTERN LASSEN-EASTERN PLUMAS-EASTERN SIERRA- EASTERN NEVADA COUNTIES...FIRE ZONE 278 EASTERN LASSEN COUNTY...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * HUMIDITY...5 TO 15 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES. && $$ HTTP://WEATHER.GOV/RENO
620 WWUS85 KREV 092136 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 236 PM PDT SUN SEP 9 2012 ...GUSTY WINDS AND LOW HUMIDITY THROUGH EARLY EVENING... .LOW PRESSURE WILL LIFT ACROSS OREGON THIS EVENING...PRODUCING GUSTY WINDS AND LOW HUMIDITY. THIS COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS ACROSS PORTIONS OF NORTHEAST CALIFORNIA AND NORTHWEST NEVADA THROUGH EARLY THIS EVENING. CAZ270-271-278-NVZ450-458-100300- /O.CON.KREV.FW.W.0025.000000T0000Z-120910T0300Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY- WESTERN NEVADA SIERRA FRONT-NORTHERN WASHOE COUNTY- 236 PM PDT SUN SEP 9 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA AND THE WESTERN NEVADA SIERRA FRONT... * 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...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. * HUMIDITY...5 TO 15 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES. && $$ HTTP://WEATHER.GOV/RENO
714 WWUS85 KREV 100244 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 744 PM PDT SUN SEP 9 2012 CAZ270-271-278-NVZ450-458-100345- /O.EXP.KREV.FW.W.0025.000000T0000Z-120910T0300Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY- WESTERN NEVADA SIERRA FRONT-NORTHERN WASHOE COUNTY- 744 PM PDT SUN SEP 9 2012 ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA AND THE WESTERN NEVADA SIERRA FRONT... WINDS ARE SLOWLY DIMINISHING ACROSS NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. SPEEDS OF 10 TO 15 MPH WITH GUSTS TO 25 MPH WILL CONTINUE TO WEAKEN THIS EVENING. IN ADDITON...HUMIDITY IS RISING TO ABOVE 20 PERCENT SO THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. $$ HTTP://WEATHER.GOV/RENO
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 2:12 PM PDT | Lake Wind Advisory | REV | Churchill, Douglas, Lyon, Pershing, Washoe | 30 hr |
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; radar from the NEXRAD Level II archive.