Alert archive / California / Red Flag Warnings in 2017
Red Flag Warning 13, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Sep 6, 2017, 8:48 AM PDT for 7 counties in California; Washoe County, Nevada. It took effect at Sep 6, 2017, 2:00 PM PDT. It was in force for 18 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 6, 2017, 8:48 AM PDT (15:48 UTC)
- In effect from
- Sep 6, 2017, 2:00 PM PDT
- Expired
- Sep 7, 2017, 7:43 AM PDT
- In force
- 18 hr
- Issued by
- NWS Reno, NV
Counties El Dorado County, CA, Lassen County, CA, Modoc County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA, Washoe County, NV
The radar
The Reno radar (KRGX), 95 km from the middle of the area, began a volume at 15:51 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 6, 2:10 PM PDT | TSTM WND GST 23 | 1 S Adin, CA | SPOTTER REPORTED WINDS 17G23 MPH AND ESTIMATED JUST OVER PEA SIZED HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Reno, NV (KREV), launched 12:00Z, 3.8 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
- 56 J/kg
- Mixed-layer CIN
- -355 J/kg
- Mixed-layer LCL
- 2308 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
102 WWUS85 KREV 061548 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 848 AM PDT Wed Sep 6 2017 CAZ270>272-278-NVZ450-458-071200- /O.UPG.KREV.FW.A.0009.170906T2100Z-170908T0300Z/ /O.NEW.KREV.FW.W.0013.170906T2100Z-170908T0300Z/ Surprise Valley California- Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties-Greater Lake Tahoe Area-Eastern Lassen County- Western Nevada Sierra Front-Northern Washoe County- 848 AM PDT Wed Sep 6 2017 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT THURSDAY FOR ABUNDANT LIGHTNING FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA... * AFFECTED AREA...Fire Zone 270 Surprise Valley California, Fire Zone 271 Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties, Fire Zone 272 Greater Lake Tahoe Area, Fire Zone 278 Eastern Lassen County, Fire Zone 450 Western Nevada Sierra Front and Fire Zone 458 Northern Washoe County. * Thunderstorms...Scattered to numerous thunderstorms will develop this afternoon and continue overnight into Thursday. While storms will be capable of heavy rain, abundant lightning and strikes outside the cores will be capable of starting new fires, especially from I-80 to the Oregon border. * Outflow Winds...Strong and erratic outflow winds to 45 mph are possible. * Impacts...Lightning can create new fire starts and may combine with strong outflow winds to cause a 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. && $$ http://weather.gov/reno
3 follow-up statements
381 WWUS85 KREV 070443 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 943 PM PDT Wed Sep 6 2017 CAZ270>272-278-NVZ450-458-071400- /O.CON.KREV.FW.W.0013.000000T0000Z-170908T0300Z/ Surprise Valley California- Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties-Greater Lake Tahoe Area-Eastern Lassen County- Western Nevada Sierra Front-Northern Washoe County- 943 PM PDT Wed Sep 6 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THURSDAY FOR ABUNDANT LIGHTNING FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA... * AFFECTED AREA...Fire Zone 270 Surprise Valley California, Fire Zone 271 Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties, Fire Zone 272 Greater Lake Tahoe Area, Fire Zone 278 Eastern Lassen County, Fire Zone 450 Western Nevada Sierra Front and Fire Zone 458 Northern Washoe County. * Thunderstorms...Scattered thunderstorms will continue overnight into Thursday. While some storms will be capable of heavy rain, abundant lightning and strikes outside the cores will be capable of starting new fires, especially from I-80 to the Oregon border. * Outflow Winds...Strong and erratic outflow winds to 45 mph are possible. * Impacts...Lightning can create new fire starts and may combine with strong outflow winds to cause a fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
174 WWUS85 KREV 071136 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 436 AM PDT Thu Sep 7 2017 CAZ270-272-278-NVZ450-458-071245- /O.CAN.KREV.FW.W.0013.000000T0000Z-170908T0300Z/ Surprise Valley California-Greater Lake Tahoe Area- Eastern Lassen County-Western Nevada Sierra Front- Northern Washoe County- 436 AM PDT Thu Sep 7 2017 ...RED FLAG WARNING IS CANCELLED FOR ABUNDANT LIGHTNING FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA... The National Weather Service in Reno has cancelled the Red Flag Warning. The threat for a significant lightning outbreak has ended for the Tahoe Basin, Sierra Front and BLM lands of far northeast California and northwest Nevada. Isolated thunderstorms are still possible today. $$ CAZ271-072200- /O.EXT.KREV.FW.W.0013.000000T0000Z-170907T2200Z/ Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties- 436 AM PDT Thu Sep 7 2017 ...RED FLAG WARNING NOW IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON FOR ABUNDANT LIGHTNING FOR NORTHEAST CALIFORNIA AND NORTHWEST NEVADA... * AFFECTED AREA...Fire Zone 271 Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties. * Thunderstorms...Isolated to scattered thunderstorms are still possible mainly north of Highway 70 in Plumas and northwest Lassen County today. Storms will be fast moving and capable of lightning strikes outside of the cores. * Outflow Winds...Strong and erratic outflow winds to 30 mph are possible. * Impacts...Lightning can create new fire starts and may combine with outflow winds to cause a fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
117 WWUS85 KREV 071443 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 743 AM PDT Thu Sep 7 2017 CAZ271-071545- /O.CAN.KREV.FW.W.0013.000000T0000Z-170907T2200Z/ Western Lassen/Eastern Plumas/Eastern Sierra/Eastern Nevada Counties- 743 AM PDT Thu Sep 7 2017 ...RED FLAG WARNING IS CANCELLED FOR ABUNDANT LIGHTNING FOR WESTERN LASSEN AND EASTERN PLUMAS COUNTIES... The main forcing and threat for abundant lightning will remain farther west across north central California this afternoon. Isolated showers and thunderstorms will still be possible this afternoon but an abundant lightning outbreak is not anticipated. As such, have dropped the Red Flag Warning for western Lassen and eastern Plumas counties today. $$ 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 5, 5:50 PM PDT | Special Weather Statement | REV | Lassen | 55 min |
| Sep 5, 6:29 PM PDT | Special Weather Statement | REV | Alpine | 61 min |
| Sep 6, 3:26 AM PDT | Fire Weather Watch | REV | El Dorado, Lassen, Modoc, Nevada, Placer, Plumas and 1 more | 5 hr |
| Sep 6, 3:35 PM PDT | Special Weather Statement | REV | Plumas | 85 min |
| Sep 6, 4:43 PM PDT | Severe Thunderstorm Warning | REV | Lassen, Plumas | 26 min |
| Sep 5, 5:38 PM PDT | Severe Thunderstorm Warning | REV | Pershing | 37 min |
| Sep 6, 2:28 PM PDT | Special Weather Statement | REV | 62 min | |
| Sep 6, 2:37 PM PDT | Special Weather Statement | REV | Churchill | 53 min |
| Sep 6, 3:40 PM PDT | Special Weather Statement | REV | Pershing | 80 min |
Nearby
Red Flag Warnings in California, 2017Red Flag Warnings in Nevada, 2017Every red flag warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.