Alert archive / California / Red Flag Warnings in 2021
Red Flag Warning 18, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Sep 26, 2021, 9:28 AM PDT for 9 counties in California; 7 counties in Nevada. It took effect at Sep 27, 2021, 12:00 AM PDT. It was in force for 28 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 26, 2021, 9:28 AM PDT (16:28 UTC)
- In effect from
- Sep 27, 2021, 12:00 AM PDT
- Expired
- Sep 28, 2021, 3:54 AM PDT
- In force
- 28 hr
- Issued by
- NWS Reno, NV
Counties El Dorado County, CA, Lassen County, CA, Madera County, CA, Modoc County, CA, Mono County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA, Churchill County, NV, Douglas County, NV, Lyon County, NV, Mineral County, NV, Pershing County, NV, Storey County, NV, Washoe County, NV
The radar
The Reno radar (KRGX), 46 km from the middle of the area, began a volume at 16:27 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, 4.5 hours before the alert went out and 137 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
- 2938 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
399 WWUS85 KREV 261628 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 928 AM PDT Sun Sep 26 2021 CAZ272-272300- /O.UPG.KREV.FW.A.0018.210927T1900Z-210928T0500Z/ /O.NEW.KREV.FW.W.0018.210927T0700Z-210928T1200Z/ Greater Lake Tahoe and Truckee Area- 928 AM PDT Sun Sep 26 2021 ...RED FLAG WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE GREATER LAKE TAHOE TRUCKEE AREA... The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from midnight tonight to 5 AM PDT Tuesday. The Fire Weather Watch is no longer in effect. * Changes...Upgraded the Fire Weather Watch. Extended timing. * Affected Area...Fire Zone 272 Greater Lake Tahoe and Truckee Area. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday night. * Humidity...10-20%...RH will increase Monday night to near 40%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 24 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ420-421-272300- /O.UPG.KREV.FW.A.0018.210927T1900Z-210928T0500Z/ /O.NEW.KREV.FW.W.0018.210927T1800Z-210928T1200Z/ Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 928 AM PDT Sun Sep 26 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM MONDAY TO 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT... The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM Monday to 5 AM PDT Tuesday. The Fire Weather Watch is no longer in effect. * Changes...Upgraded the Fire Weather Watch. Extended timing. * Affected Area...Fire Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon and and Western Mineral Counties. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday night. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase Monday night to near 40%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 18 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ270-271-278-NVZ423-429-458-272300- /O.UPG.KREV.FW.A.0018.210927T1900Z-210928T0500Z/ /O.NEW.KREV.FW.W.0018.210927T1800Z-210928T0600Z/ Surprise Valley California- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- Eastern Lassen County-West Humboldt Basin in Pershing County- Lahontan Basin including Churchill and Eastern Mineral Counties- Northern Washoe County- 928 AM PDT Sun Sep 26 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND WESTERN NEVADA... The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM to 11 PM PDT Monday. The Fire Weather Watch is no longer in effect. * Changes...Upgraded the Fire Weather Watch. * Affected Area...Fire Zone 270 Surprise Valley California, Fire Zone 271 Western Lassen, Eastern Plumas, and Eastern Sierra Counties, Fire Zone 278 Eastern Lassen County, Fire Zone 423 West Humboldt Basin in Pershing County, Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties and Fire Zone 458 Northern Washoe County. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday evening. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase Monday evening to near 50%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 12 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ274-272300- /O.EXT.KREV.FW.A.0018.210927T1900Z-210928T1800Z/ Southern Mono County- 928 AM PDT Sun Sep 26 2021 ...FIRE WEATHER WATCH NOW IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY MORNING FOR GUSTY WINDS AND LOW HUMIDITY FOR SOUTHERN MONO COUNTY... * Changes...Extended timing into Tuesday morning. * Affected Area...Fire Zone 274 Southern Mono County. * Winds...Southwest to West 10 to 20 mph with gusts up to 35 mph. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. * Duration...up to 3 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
4 follow-up statements
539 WWUS85 KREV 271056 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 356 AM PDT Mon Sep 27 2021 CAZ274-272300- /O.UPG.KREV.FW.A.0018.210927T1900Z-210928T1800Z/ /O.EXB.KREV.FW.W.0018.210927T1800Z-210929T0300Z/ Southern Mono County- 356 AM PDT Mon Sep 27 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR SOUTHERN MONO 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 11 AM this morning to 8 PM PDT Tuesday. * Changes....Upgraded Fire Weather Watch to a Red Flag Warning. * Affected Area...Fire Zone 274 Southern Mono County. * Winds...Southwest 10 to 20 mph with gusts up to 40 mph shifting North-Northeast 15-25 mph behind the cold front Tuesday with gusts up to 40 mph particularly though the Chalfant Valley. * Humidity...10-15% along and east of US-395. 15-20% west of US-395. * Duration...3-6 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ272-272300- /O.CON.KREV.FW.W.0018.000000T0000Z-210928T1200Z/ Greater Lake Tahoe and Truckee Area- 356 AM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE GREATER LAKE TAHOE TRUCKEE AREA... * Changes...No changes. * Affected Area...Fire Zone 272 Greater Lake Tahoe and Truckee Area. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday night. * Humidity...10-20%...RH will increase Monday night to near 40%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 24 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ420-421-272300- /O.CON.KREV.FW.W.0018.210927T1800Z-210928T1200Z/ Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 356 AM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT... * Changes...No Changes. * Affected Area...Fire Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon and and Western Mineral Counties. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday night. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase Monday night to near 40%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 18 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ270-271-278-NVZ423-429-458-272300- /O.CON.KREV.FW.W.0018.210927T1800Z-210928T0600Z/ Surprise Valley California- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- Eastern Lassen County-West Humboldt Basin in Pershing County- Lahontan Basin including Churchill and Eastern Mineral Counties- Northern Washoe County- 356 AM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND WESTERN NEVADA... * Changes...No changes. * Affected Area...Fire Zone 270 Surprise Valley California, Fire Zone 271 Western Lassen, Eastern Plumas, and Eastern Sierra Counties, Fire Zone 278 Eastern Lassen County, Fire Zone 423 West Humboldt Basin in Pershing County, Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties and Fire Zone 458 Northern Washoe County. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph Monday evening. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase Monday evening to near 50%. * Duration...3 to 7 hours of critical conditions Monday afternoon. Gusty winds will last for over 12 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
127 WWUS85 KREV 272054 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 154 PM PDT Mon Sep 27 2021 CAZ274-282100- /O.CON.KREV.FW.W.0018.000000T0000Z-210929T0300Z/ Southern Mono County- 154 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR SOUTHERN MONO COUNTY... * Changes....None. * Affected Area...Fire Zone 274 Southern Mono County. * Winds...Southwest 10 to 20 mph with gusts up to 35 mph through tonight shifting North-Northeast 15-25 mph behind the cold front Tuesday with gusts up to 40 mph particularly though the Chalfant Valley. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. * Duration...3-6 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ272-281200- /O.CON.KREV.FW.W.0018.000000T0000Z-210928T1200Z/ Greater Lake Tahoe and Truckee Area- 154 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE GREATER LAKE TAHOE TRUCKEE AREA... * Changes...No changes. * Affected Area...Fire Zone 272 Greater Lake Tahoe and Truckee Area. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph tonight. * Humidity...10-20%...RH will increase tonight to near 40%. * Duration...3 to 7 hours of critical conditions this afternoon with continued gusty winds tonight. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ420-421-281200- /O.CON.KREV.FW.W.0018.000000T0000Z-210928T1200Z/ Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 154 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT... * Changes...No Changes. * Affected Area...Fire Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon and and Western Mineral Counties. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph tonight. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase tonight to near 40%. * Duration...3 to 7 hours of critical conditions this afternoon with continued gusty winds tonight. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ270-271-278-NVZ423-429-458-280600- /O.CON.KREV.FW.W.0018.000000T0000Z-210928T0600Z/ Surprise Valley California- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- Eastern Lassen County-West Humboldt Basin in Pershing County- Lahontan Basin including Churchill and Eastern Mineral Counties- Northern Washoe County- 154 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND WESTERN NEVADA... * Changes...No changes. * Affected Area...Fire Zone 270 Surprise Valley California, Fire Zone 271 Western Lassen, Eastern Plumas, and Eastern Sierra Counties, Fire Zone 278 Eastern Lassen County, Fire Zone 423 West Humboldt Basin in Pershing County, Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties and Fire Zone 458 Northern Washoe County. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph this evening. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. RH will increase this evening and overnight to near 50%. * Duration...3 to 7 hours of critical conditions this afternoon with continued gusty winds tonight. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
269 WWUS85 KREV 280355 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 855 PM PDT Mon Sep 27 2021 CAZ270-271-278-NVZ458-280500- /O.CAN.KREV.FW.W.0018.000000T0000Z-210928T0600Z/ Surprise Valley California- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- Eastern Lassen County-Northern Washoe County- 855 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA... The National Weather Service in Reno has cancelled the Red Flag Warning. Moisture was increasing across northeast California and far northwest Nevada as a cold front and light showers were arriving. The threat for critical fire weather conditions has ended for fire zones 270, 271,278 and 458. $$ CAZ272-280500- /O.CAN.KREV.FW.W.0018.000000T0000Z-210928T1200Z/ Greater Lake Tahoe and Truckee Area- 855 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR THE GREATER LAKE TAHOE TRUCKEE AREA... The National Weather Service in Reno has cancelled the Red Flag Warning. Moisture was increasing across the Tahoe Basin as a cold front approached. Humidity levels will continue to rise as winds gradually decrease through the early morning hours Tuesday. The threat for critical fire weather conditions has diminished for fire weather zone 272. $$ CAZ274-290300- /O.CON.KREV.FW.W.0018.000000T0000Z-210929T0300Z/ Southern Mono County- 855 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR SOUTHERN MONO COUNTY... * Changes....None. * Affected Area...Fire Zone 274 Southern Mono County. * Winds...Southwest 10 to 20 mph with gusts up to 35 mph through tonight shifting North-Northeast 15-25 mph behind the cold front Tuesday with gusts up to 40 mph particularly though the Chalfant Valley. * Humidity...10-15% along and east of US-395. 15-20% west of US- 395. * Duration...3-6 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ420-421-281200- /O.CON.KREV.FW.W.0018.000000T0000Z-210928T1200Z/ Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 855 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT... * Changes...No Changes. * Affected Area...Fire Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon and and Western Mineral Counties. * Winds...Southwest to West 15 to 25 mph with gusts up to 40 mph. Wind prone areas could see gusts up to 50 mph tonight. * Humidity...15-25% along and east of US-395. 25-35% west of US- 395. RH will increase to above 50% overnight. * Impacts...The combination of gusty winds and dry conditions can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ423-429-280600- /O.CON.KREV.FW.W.0018.000000T0000Z-210928T0600Z/ West Humboldt Basin in Pershing County- Lahontan Basin including Churchill and Eastern Mineral Counties- 855 PM PDT Mon Sep 27 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEAST CALIFORNIA AND WESTERN NEVADA... * Changes...No changes. * Affected Area...Fire Zone 423 West Humboldt Basin in Pershing County and Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties. * Winds...Southwest to West 15 to 25 mph with gusts up to 35 mph this evening then gradually decreasing to 10 to 15 mph with gusts to 30 mph overnight. * Humidity...15-25%. RH will increase to greater than 50% overnight. * Impacts...The combination of gusty winds and dry conditions can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
987 WWUS85 KREV 281054 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 354 AM PDT Tue Sep 28 2021 CAZ274-281200- /O.CAN.KREV.FW.W.0018.000000T0000Z-210929T0300Z/ Southern Mono County- 354 AM PDT Tue Sep 28 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR SOUTHERN MONO COUNTY... The National Weather Service in Reno has cancelled the Red Flag Warning. However, isolated areas of critical fire weather conditions will still be possible through the Chalfant Valley as north winds channel through the area behind the front this afternoon. $$ NVZ420-421-281200- /O.CAN.KREV.FW.W.0018.000000T0000Z-210928T1200Z/ Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- 354 AM PDT Tue Sep 28 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT... The National Weather Service in Reno has cancelled the Red Flag Warning. The cold front has moved through the region and humidity has shown a significant increase. $$ 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 26, 12:36 PM PDT | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 39 hr |
| Sep 26, 12:36 PM PDT | Lake Wind Advisory | REV | Churchill, Lyon, Pershing, Washoe | 49 hr |
Nearby
Red Flag Warnings in California, 2021Red Flag Warnings in Nevada, 2021Every red flag warning in 2021
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.