Alert archive / Nevada / Red Flag Warnings in 2021
Red Flag Warning 4, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Jun 7, 2021, 1:12 PM PDT for 4 counties in Nevada; Madera County, Mono County, California. It took effect at Jun 9, 2021, 11:00 AM PDT. It was in force for 11 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
- Jun 7, 2021, 1:12 PM PDT (20:12 UTC)
- In effect from
- Jun 9, 2021, 11:00 AM PDT
- Expired
- Jun 9, 2021, 9:56 PM PDT
- In force
- 11 hr
- Issued by
- NWS Reno, NV
Counties Madera County, CA, Mono County, CA, Churchill County, NV, Douglas County, NV, Lyon County, NV, Mineral County, NV
The radar
The Reno radar (KRGX), 140 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 136 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
- 2711 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 169 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
871 WWUS85 KREV 072012 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 112 PM PDT Mon Jun 7 2021 CAZ274-NVZ421-429-082000- /O.NEW.KREV.FW.W.0003.210608T1900Z-210609T0600Z/ /O.NEW.KREV.FW.W.0004.210609T1900Z-210610T0600Z/ /O.CON.KREV.FW.W.0002.000000T0000Z-210608T0600Z/ Southern Mono County- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- Lahontan Basin including Churchill and Eastern Mineral Counties- 112 PM PDT Mon Jun 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND MUCH OF WESTERN NEVADA... ...RED FLAG WARNING ALSO IN EFFECT FROM NOON TO 11 PM PDT TUESDAY AND WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND PORTIONS OF 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 noon to 11 PM PDT Tuesday. A Red Flag Warning has also been issued from noon to 11 PM PDT Wednesday. * CHANGES...Extended Red Flag Warnings into Tuesday and Wednesday. * Affected Area...Fire Zone 274 Southern Mono County, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties and Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties. * Winds...Each afternoon and evening: West to Southwest 15 to 25 mph with gusts 30 to 40 mph. Gusts up to 45 mph for wind prone areas. Winds will be more southerly on Wednesday. * Humidity...8 to 15 percent in western Nevada...10 to 20 percent in the Eastern Sierra. * Duration...4 to 8 hours each day. * Impacts...The combination of gusty winds and low humidity can cause fires 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. && $$ NVZ423-082000- /O.NEW.KREV.FW.W.0003.210608T1900Z-210609T0600Z/ /O.CON.KREV.FW.W.0002.000000T0000Z-210608T0600Z/ West Humboldt Basin in Pershing County- 112 PM PDT Mon Jun 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR MUCH OF WESTERN NEVADA... ...RED FLAG WARNING IN EFFECT FROM NOON TO 11 PM PDT TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR PORTIONS OF WESTERN NEVADA... The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from noon to 11 PM PDT Tuesday. * CHANGES...Extended Red Flag Warning into Tuesday. * Affected Area...Fire Zone 423 West Humboldt Basin in Pershing County. * Winds...West to Southwest 15 to 25 mph with gusts 30 to 40 mph. Gusts up to 45 mph for wind prone areas. * Humidity...7 to 15 percent. * Duration...3 to 6 hours. * Impacts...The combination of gusty winds and low humidity can cause fires to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ CAZ270>272-278-NVZ420-080600- /O.CON.KREV.FW.W.0002.000000T0000Z-210608T0600Z/ Surprise Valley California- Western Lassen, Eastern Plumas, and Eastern Sierra Counties- Greater Lake Tahoe and Truckee Area-Eastern Lassen County- Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties- 112 PM PDT Mon Jun 7 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT, TAHOE BASIN, AND NORTHEAST CALIFORNIA... * CHANGES...None. * Affected Area...Fire Zone 270 Surprise Valley California, Fire Zone 271 Western Lassen, Eastern Plumas, and Eastern Sierra Counties, Fire Zone 272 Greater Lake Tahoe and Truckee Area, Fire Zone 278 Eastern Lassen County, Fire Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon and Far Southern Lassen Counties. * Winds...West to Southwest 15 to 25 mph with gusts 30 to 40 mph. Gusts up to 45 mph for wind prone areas. * Humidity...7 to 12 percent in western Nevada...15 to 25 percent in the Tahoe Basin and northeastern California. * Duration...3 to 6 hours. * Impacts...The combination of gusty winds and low humidity can cause fires 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. && $$ http://weather.gov/reno
4 follow-up statements
532 WWUS85 KREV 080956 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 256 AM PDT Tue Jun 8 2021 CAZ274-NVZ421-429-091000- /O.CON.KREV.FW.W.0003.210608T1900Z-210609T0600Z/ /O.CON.KREV.FW.W.0004.210609T1900Z-210610T0600Z/ Southern Mono County- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- Lahontan Basin including Churchill and Eastern Mineral Counties- 256 AM PDT Tue Jun 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 11 PM PDT TODAY AND WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND MUCH OF WESTERN NEVADA... * CHANGES...None. * Affected Area...Fire Zone 274 Southern Mono County, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties and Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties. * Winds...South to Southwest 15 to 25 mph with gusts to 40 mph. Gusts up to 45 mph for wind prone areas. * Humidity...8 to 15 percent in western Nevada...10 to 20 percent in the Eastern Sierra. * Duration...4 to 8 hours each day. * Impacts...The combination of gusty winds and low humidity can cause fires to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ423-090600- /O.CON.KREV.FW.W.0003.210608T1900Z-210609T0600Z/ West Humboldt Basin in Pershing County- 256 AM PDT Tue Jun 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR MUCH OF WESTERN NEVADA... * CHANGES...None. * Affected Area...Fire Zone 423 West Humboldt Basin in Pershing County. * Winds...West to Southwest 15 to 25 mph with gusts to 40 mph. * Humidity...7 to 15 percent. * Duration...3 to 6 hours. * Impacts...The combination of gusty winds and low humidity can cause fires 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. && $$ http://weather.gov/reno
461 WWUS85 KREV 082152 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 252 PM PDT Tue Jun 8 2021 CAZ274-NVZ421-429-092200- /O.CON.KREV.FW.W.0003.000000T0000Z-210609T0600Z/ /O.CON.KREV.FW.W.0004.210609T1900Z-210610T0600Z/ Southern Mono County- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- Lahontan Basin including Churchill and Eastern Mineral Counties- 252 PM PDT Tue Jun 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND MUCH OF WESTERN NEVADA... ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 11 PM PDT WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND MUCH OF WESTERN NEVADA... * CHANGES...None. * Affected Area...Fire Zone 274 Southern Mono County, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties and Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties. * Winds...South to Southwest 15 to 25 mph with gusts to 40 mph. Gusts up to 45 mph for wind prone areas. * Humidity...8 to 15 percent in western Nevada...10 to 20 percent in the Eastern Sierra. * Duration...4 to 8 hours each day. * Impacts...The combination of gusty winds and low humidity can cause fires to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ NVZ423-090600- /O.CON.KREV.FW.W.0003.000000T0000Z-210609T0600Z/ West Humboldt Basin in Pershing County- 252 PM PDT Tue Jun 8 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR MUCH OF WESTERN NEVADA... * CHANGES...None. * Affected Area...Fire Zone 423 West Humboldt Basin in Pershing County. * Winds...West to Southwest 15 to 25 mph with gusts to 40 mph. * Humidity...7 to 15 percent. * Duration...3 to 6 hours. * Impacts...The combination of gusty winds and low humidity can cause fires 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. && $$ http://weather.gov/reno
772 WWUS85 KREV 090925 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 225 AM PDT Wed Jun 9 2021 CAZ274-NVZ421-429-100600- /O.EXT.KREV.FW.W.0004.210609T1800Z-210610T0600Z/ Southern Mono County- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- Lahontan Basin including Churchill and Eastern Mineral Counties- 225 AM PDT Wed Jun 9 2021 ...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND MUCH OF WESTERN NEVADA... * CHANGES...Increased winds for Mono and Mineral Counties. * Affected Area...Fire Zone 274 Southern Mono County, Fire Zone 421 Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties and Fire Zone 429 Lahontan Basin including Churchill and Eastern Mineral Counties. * Winds...South to Southwest 20 to 35 mph with gusts to 50 mph. Gusts up to 60 mph for portions of Mono and Mineral Counties. * Humidity...8 to 15 percent in western Nevada...10 to 20 percent in the Eastern Sierra. * Duration...4 to 8 hours. * Impacts...The combination of gusty winds and low humidity can cause fires to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
413 WWUS85 KREV 100456 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 956 PM PDT Wed Jun 9 2021 CAZ274-NVZ421-429-100600- /O.CAN.KREV.FW.W.0004.000000T0000Z-210610T0600Z/ Southern Mono County- Southern Sierra Front including Alpine, Northern Mono, Southern Lyon, and Western Mineral Counties- Lahontan Basin including Churchill and Eastern Mineral Counties- 956 PM PDT Wed Jun 9 2021 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA AND MUCH OF WESTERN NEVADA... The National Weather Service in Reno has cancelled the Red Flag Warning. Winds remain gusty across the region, but are gradually decreasing with humidity values rapidly rising above 30-40% as of the time of writing. Therefore will allow the Red Flag Warning to go an hour early. $$ http://weather.gov/reno
The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 1:12 PM PDT | Red Flag Warning | REV | Churchill, Douglas, Lyon, Mineral, Pershing | 34 hr |
Nearby
Red Flag Warnings in Nevada, 2021Red Flag Warnings in California, 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.