Alert archive / California / Red Flag Warnings in 2021
Red Flag Warning 21, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at Jul 17, 2021, 12:06 PM PDT for Inyo County, Tulare County, California. It took effect at Jul 18, 2021, 11:00 AM PDT. It was in force for 16 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
- Jul 17, 2021, 12:06 PM PDT (19:06 UTC)
- In effect from
- Jul 18, 2021, 11:00 AM PDT
- Expired
- Jul 19, 2021, 3:17 AM PDT
- In force
- 16 hr
- Issued by
- NWS Las Vegas, NV
Counties Inyo County, CA, Tulare County, CA
The radar
The San Joaquin Valley radar (KHNX), 137 km from the middle of the area, began a volume at 19:08 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
Las Vegas, NV (KVEF), launched 12:00Z, 7.1 hours before the alert went out and 230 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
- 3507 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
736 WWUS85 KVEF 171906 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 1206 PM PDT Sat Jul 17 2021 CAZ226-181300- /O.UPG.KVEF.FW.A.0012.210718T2100Z-210719T1300Z/ /O.NEW.KVEF.FW.W.0021.210718T1800Z-210719T1300Z/ Owens Valley/Southern Inyo Forest- 1206 PM PDT Sat Jul 17 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM SUNDAY TO 6 AM PDT MONDAY FOR DRY THUNDERSTORMS... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 11 AM Sunday to 6 AM PDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In California...Fire weather Zone 226 the Eastern Sierra. * TIMING...Sunday Morning through Sunday Night * THUNDERSTORMS...Thunderstorms will form over higher terrain late morning and continue through the afternoon and most of Monday night. These storms will have little or no precipitation. * IMPACTS...Lightning is likely to have an impact on wildland fire starts. Any fires that develop from lightning will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ weather.gov/lasvegas
3 follow-up statements
379 WWUS85 KVEF 180945 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 245 AM PDT Sun Jul 18 2021 CAZ226-182200- /O.CON.KVEF.FW.W.0021.210718T1800Z-210719T1300Z/ Owens Valley/Southern Inyo Forest- 245 AM PDT Sun Jul 18 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 AM PDT MONDAY FOR DRY THUNDERSTORMS... * AFFECTED AREA...In California...Fire weather Zone 226 the Eastern Sierra. * TIMING...11 am this morning through 6 am Monday morning. * THUNDERSTORMS...Thunderstorms will form over the higher terrain late morning and continue through the afternoon and most of tonight. These storms will initially start out with little or no precipitation but could becoming wetter tonight. * IMPACTS...Lightning is likely to have an impact on wildland fire starts. Any fires that develop from lightning will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ weather.gov/lasvegas
472 WWUS85 KVEF 182159 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 259 PM PDT Sun Jul 18 2021 CAZ226-191100- /O.CON.KVEF.FW.W.0021.000000T0000Z-210719T1300Z/ Owens Valley/Southern Inyo Forest- 259 PM PDT Sun Jul 18 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 AM PDT MONDAY FOR DRY THUNDERSTORMS... * AFFECTED AREA...In California...Fire weather Zone 226 the Eastern Sierra. * TIMING...through 6 am Monday morning. * THUNDERSTORMS...Thunderstorms will continue to form over the higher terrain most of tonight. * IMPACTS...Lightning is likely to have an impact on wildland fire starts. Any fires that develop from lightning will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now...or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ weather.gov/lasvegas
562 WWUS85 KVEF 191017 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 317 AM PDT Mon Jul 19 2021 CAZ226-191130- /O.CAN.KVEF.FW.W.0021.000000T0000Z-210719T1300Z/ Owens Valley/Southern Inyo Forest- 317 AM PDT Mon Jul 19 2021 ...RED FLAG WARNING IS CANCELLED FOR DRY THUNDERSTORMS... The National Weather Service in Las Vegas has cancelled the Red Flag Warning. As moisture continues to stream northward into Inyo County any showers or thunderstorms moving forward will likely be producing wetting rains. Therefore, the Red Flag Warning has been cancelled. $$ weather.gov/lasvegas
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.