Alert archive / Nevada / Red Flag Warnings in 2012
Red Flag Warning 21, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Aug 20, 2012, 2:50 PM PDT for Washoe County, Nevada; Lassen County, California. It took effect at Aug 21, 2012, 1:00 PM PDT. It was in force for 8 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
- Aug 20, 2012, 2:50 PM PDT (21:50 UTC)
- In effect from
- Aug 21, 2012, 1:00 PM PDT
- Expired
- Aug 21, 2012, 9:00 PM PDT
- In force
- 8 hr
- Issued by
- NWS Reno, NV
Counties Lassen County, CA, Washoe County, NV
The radar
The Reno radar (KRGX), 116 km from the middle of the area, began a volume at 21:51 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, 9.8 hours before the alert went out and 205 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
- 3035 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
264 WWUS85 KREV 202150 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 250 PM PDT MON AUG 20 2012 ...GUSTY WINDS AND LOW HUMIDITY TUESDAY AFTERNOON... .AN AREA OF LOW PRESSURE OFF THE CALIFORNIA COAST WILL MOVE NORTHEAST ACROSS OREGON ON TUESDAY. AHEAD OF THIS SYSTEM...GUSTY SOUTHWEST WINDS WILL IMPACT NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. GUSTY WINDS COMBINED WITH LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS TUESDAY AFTERNOON AND EVENING. CAZ270>272-NVZ450-453-202300- /O.CAN.KREV.FW.A.0015.120821T2000Z-120822T0300Z/ SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS- EASTERN SIERRA-EASTERN NEVADA COUNTIES-GREATER LAKE TAHOE AREA- WESTERN NEVADA SIERRA FRONT-WEST CENTRAL NEVADA BASIN AND RANGE- 250 PM PDT MON AUG 20 2012 ...FIRE WEATHER WATCH IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RENO HAS CANCELLED THE FIRE WEATHER WATCH FOR THE TAHOE BASIN...SURPRISE VALLEY AND WEST CENTRAL NEVADA. SOUTHWEST WINDS BETWEEN 10 TO 20 MPH WITH GUSTS UP TO 30 MPH ARE POSSIBLE TUESDAY AFTERNOON INTO TUESDAY EVENING...ESPECIALLY ALONG THE HIGHWAY 395 CORRIDOR. LOCALLY CRITICAL CONDITIONS ARE POSSIBLE TUESDAY AFTERNOON AND EVENING. HOWEVER CONDITIONS ARE NOT EXPECTED TO BE WIDESPREAD OR PROLONGED. $$ CAZ278-NVZ458-211000- /O.UPG.KREV.FW.A.0015.120821T2000Z-120822T0300Z/ /O.NEW.KREV.FW.W.0021.120821T2000Z-120822T0400Z/ EASTERN LASSEN COUNTY-NORTHERN WASHOE COUNTY- 250 PM PDT MON AUG 20 2012 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR EASTERN LASSEN COUNTY AND NORTHERN WASHOE COUNTY... THE NATIONAL WEATHER SERVICE IN RENO HAS UPGRADED THE FIRE WEATHER WATCH TO A RED FLAG WARNING FOR GUSTY WINDS AND LOW HUMIDITY...WHICH IS IN EFFECT FROM 1 PM TO 9 PM PDT TUESDAY. * AFFECTED AREA...FIRE ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...WEST TO SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS 30 TO 35 MPH. * MINIMUM HUMIDITY...5 TO 15 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES. && $$ HTTP://WEATHER.GOV/RENO
4 follow-up statements
347 WWUS85 KREV 210552 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 1052 PM PDT MON AUG 20 2012 ...GUSTY WINDS AND LOW HUMIDITY TUESDAY AFTERNOON... .AN AREA OF LOW PRESSURE OFF THE CALIFORNIA COAST WILL MOVE NORTHEAST ACROSS OREGON ON TUESDAY. AHEAD OF THIS SYSTEM...GUSTY SOUTHWEST WINDS WILL IMPACT NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. GUSTY WINDS COMBINED WITH LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS TUESDAY AFTERNOON AND EVENING. CAZ278-NVZ458-211500- /O.CON.KREV.FW.W.0021.120821T2000Z-120822T0400Z/ EASTERN LASSEN COUNTY-NORTHERN WASHOE COUNTY- 1052 PM PDT MON AUG 20 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM TO 9 PM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR EASTERN LASSEN COUNTY AND NORTHERN WASHOE COUNTY... * AFFECTED AREA...FIRE ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...WEST TO SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS 30 TO 35 MPH. * MINIMUM 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. && $$ HOON HTTP://WEATHER.GOV/RENO
443 WWUS85 KREV 211225 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 525 AM PDT TUE AUG 21 2012 ...GUSTY WINDS AND LOW HUMIDITY THIS AFTERNOON... .AN AREA OF LOW PRESSURE OFF THE CALIFORNIA COAST WILL MOVE NORTHEAST ACROSS OREGON TODAY. AHEAD OF THIS SYSTEM...GUSTY SOUTHWEST WINDS WILL IMPACT NORTHEAST CALIFORNIA AND NORTHWEST NEVADA. GUSTY WINDS COMBINED WITH LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS THIS AFTERNOON AND EVENING. CAZ278-NVZ458-220000- /O.CON.KREV.FW.W.0021.120821T2000Z-120822T0400Z/ EASTERN LASSEN COUNTY-NORTHERN WASHOE COUNTY- 525 AM PDT TUE AUG 21 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 9 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EASTERN LASSEN COUNTY AND NORTHERN WASHOE COUNTY... * AFFECTED AREA...FIRE ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...WEST TO SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS 30 TO 35 MPH. * MINIMUM HUMIDITY...3 TO 9 PERCENT. * IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL CREATE CRITICAL FIRE WEATHER CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES. && $$ HTTP://WEATHER.GOV/RENO
656 WWUS85 KREV 212212 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 312 PM PDT TUE AUG 21 2012 CAZ278-NVZ458-220400- /O.CON.KREV.FW.W.0021.000000T0000Z-120822T0400Z/ EASTERN LASSEN COUNTY-NORTHERN WASHOE COUNTY- 312 PM PDT TUE AUG 21 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EASTERN LASSEN COUNTY AND NORTHERN WASHOE COUNTY... * AFFECTED AREA...FIRE ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN WASHOE COUNTY. * WINDS...WEST TO SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS 30 TO 35 MPH. * MINIMUM HUMIDITY...3 TO 9 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. && $$ HTTP://WEATHER.GOV/RENO
625 WWUS85 KREV 220343 RFWREV URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE RENO NV 843 PM PDT TUE AUG 21 2012 CAZ278-NVZ458-220445- /O.EXP.KREV.FW.W.0021.000000T0000Z-120822T0400Z/ EASTERN LASSEN COUNTY-NORTHERN WASHOE COUNTY- 843 PM PDT TUE AUG 21 2012 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EASTERN LASSEN COUNTY AND NORTHERN WASHOE COUNTY... WINDS WILL CONTINUE TO DIMINISH THIS EVENING. POOR RECOVERIES EXPECTED AGAIN TONIGHT FOR THERMAL BELTS. $$ HTTP://WEATHER.GOV/RENO
Nearby
Red Flag Warnings in Nevada, 2012Red 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.