Alert archive / California / Red Flag Warnings in 2021
Red Flag Warning 5, NWS Reno, NV
NWS Reno, NV issued this red flag warning at Jun 13, 2021, 11:38 AM PDT for Madera County, Mono County, California. It took effect at Jun 14, 2021, 12:00 PM PDT. It was in force for 9 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 13, 2021, 11:38 AM PDT (18:38 UTC)
- In effect from
- Jun 14, 2021, 12:00 PM PDT
- Expired
- Jun 14, 2021, 9:00 PM PDT
- In force
- 9 hr
- Issued by
- NWS Reno, NV
Counties Madera County, CA, Mono County, CA
The radar
The San Joaquin Valley radar (KHNX), 143 km from the middle of the area, began a volume at 18:38 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, 6.6 hours before the alert went out and 242 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
- 2418 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
366 WWUS85 KREV 131838 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 1138 AM PDT Sun Jun 13 2021 CAZ274-141200- /O.UPG.KREV.FW.A.0004.210614T1900Z-210615T0400Z/ /O.NEW.KREV.FW.W.0005.210614T1900Z-210615T0400Z/ Southern Mono County- 1138 AM PDT Sun Jun 13 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM PDT MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA OF SOUTHERN MONO COUNTY... 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 9 PM PDT Monday. * CHANGES...Upgraded Fire Weather Watch to a Red Flag Warning. * Affected Area...Fire Zone 274 Southern Mono County. * Winds...Southwest 15 to 25 mph with gusts to 40 mph. Gusts to 45 mph for wind prone areas. * Humidity...5 to 15 percent with poor to moderate recovery Monday night. * Duration...4 to 8 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. && $$ http://weather.gov/reno
2 follow-up statements
546 WWUS85 KREV 141023 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 323 AM PDT Mon Jun 14 2021 CAZ274-150400- /O.CON.KREV.FW.W.0005.210614T1900Z-210615T0400Z/ Southern Mono County- 323 AM PDT Mon Jun 14 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA OF SOUTHERN MONO COUNTY... * CHANGES...None. * Affected Area...Fire Zone 274 Southern Mono County. * Winds...Southwest 15 to 25 mph with gusts to 30-40 mph. Gusts up to 45 mph for wind prone areas. * Humidity...5 to 15 percent with poor to moderate recovery Monday night. * Duration...4 to 8 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outdoor activities that can cause a spark near dry vegetation, such as yard work, target shooting, or campfires. Follow local fire restrictions. Check weather.gov/reno for updates and livingwithfire.info for preparedness tips. && $$ http://weather.gov/reno
318 WWUS85 KREV 150344 RFWREV URGENT - FIRE WEATHER MESSAGE National Weather Service Reno NV 844 PM PDT Mon Jun 14 2021 CAZ274-150445- /O.EXP.KREV.FW.W.0005.000000T0000Z-210615T0400Z/ Southern Mono County- 844 PM PDT Mon Jun 14 2021 ...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE EASTERN SIERRA OF SOUTHERN MONO COUNTY... It remains dry and breezy early this evening with conditions continuing to improve over the next several hours. Winds are unlikely to fully decouple overnight, especially for midslopes and ridges. $$ http://weather.gov/reno
Nearby
Red 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.