Alert archive / Nevada / Red Flag Warnings in 2020
Red Flag Warning 9, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at Jun 7, 2020, 3:42 AM MST for Mohave County, Arizona; 4 counties in Nevada; Inyo County, Tulare County, California. It took effect at Jun 7, 2020, 11:00 AM MST. 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 7, 2020, 3:42 AM MST (10:42 UTC)
- In effect from
- Jun 7, 2020, 11:00 AM MST
- Expired
- Jun 7, 2020, 8:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Las Vegas, NV
Counties Mohave County, AZ, Inyo County, CA, Tulare County, CA, Clark County, NV, Esmeralda County, NV, Lincoln County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 180 km from the middle of the area, began a volume at 10:42 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 00:00Z, 10.7 hours before the alert went out and 86 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
- 0 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
681 WWUS85 KVEF 071042 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 342 AM PDT Sun Jun 7 2020 .Strong northerly winds behind a cold front will bring critical fire weather conditions today. CAZ226-227-NVZ460-462-071800- /O.NEW.KVEF.FW.W.0009.200607T1800Z-200608T0300Z/ Owens Valley/Southern Inyo Forest-Death Valley National Park- Esmeralda and Nye County Deserts/CNC Dispatch- Nye County Deserts/Las Vegas Dispatch- 342 AM PDT Sun Jun 7 2020 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 226, 227, 460, AND 462... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 11 AM this morning to 8 PM PDT this evening. * AFFECTED AREA...In California...Fire weather zones 226 and 227.In Nevada...Fire weather zones 460 and 462. * TIMING...Northerly winds will increase by late morning, peak in the afternoon, and begin decreasing from north to south in the evening. * WIND...Northerly winds of 25 to 35 MPH with gusts to 50 MPH. * HUMIDITY...Minimum humidity values of 5 to 10 percent. * IMPACTS...any fires that develop 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. && $$ weather.gov/lasvegas
2 follow-up statements
003 WWUS85 KVEF 071746 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 1046 AM PDT Sun Jun 7 2020 .Gusty south and southwest winds this afternoon will be followed by a cold front that will bring a shift to northerly winds today and tonight across the region. Combined with very low humidity and critical fuels across southern Nevada, this will result in near-critical and critical fire weather conditions for much of southern Nevada and northwest Arizona. AZZ101-102-NVZ461-465-466-080300- /O.EXA.KVEF.FW.W.0009.200607T1800Z-200608T0300Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau-Lincoln County/Ely Dispatch- Clark and SW Lincoln County Deserts/Las Vegas Dispatch- Lake Mead NRA/Colorado River-NV side- 1046 AM PDT Sun Jun 7 2020 /1046 AM MST Sun Jun 7 2020/ ...RED FLAG WARNING IN EFFECT UNTIL 8 PM THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 226, 227, 460, 461, 462, 465, 466, 101, and 102... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect until 8 PM PDT /8 PM MST/ this evening. * AFFECTED AREA...In Nevada...Fire weather zones 461, 465, and 466. In Arizona...Fire weather zones 101 and 102. * TIMING...through 8 PM this evening. * WIND...Initially south and southwest winds of 15-25 mph with gusts to 40 mph will shift to the northwest and remain gusty. * HUMIDITY...Minimum humidity values of 5 to 10 percent. * IMPACTS...Due to the increased winds, critical fuels, and very dry conditions, quick fire starts are possible and could spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ CAZ226-227-NVZ460-462-080300- /O.CON.KVEF.FW.W.0009.200607T1800Z-200608T0300Z/ Owens Valley/Southern Inyo Forest-Death Valley National Park- Esmeralda and Nye County Deserts/CNC Dispatch- Nye County Deserts/Las Vegas Dispatch- 1046 AM PDT Sun Jun 7 2020 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 226, 227, 460, AND 462... * AFFECTED AREA...In California...Fire weather zones 226 and 227.In Nevada...Fire weather zones 460 and 462. * TIMING...Northerly winds will increase by late morning, peak in the afternoon, and begin decreasing from north to south in the evening. * WIND...Northerly winds of 25 to 35 MPH with gusts to 50 MPH. * HUMIDITY...Minimum humidity values of 5 to 10 percent. * IMPACTS...any fires that develop 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. && $$ weather.gov/lasvegas
670 WWUS85 KVEF 080245 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 745 PM PDT Sun Jun 7 2020 AZZ101-102-CAZ226-227-NVZ460>462-465-466-080345- /O.EXP.KVEF.FW.W.0009.000000T0000Z-200608T0300Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau- Owens Valley/Southern Inyo Forest-Death Valley National Park- Esmeralda and Nye County Deserts/CNC Dispatch- Lincoln County/Ely Dispatch-Nye County Deserts/Las Vegas Dispatch- Clark and SW Lincoln County Deserts/Las Vegas Dispatch- Lake Mead NRA/Colorado River-NV side- 745 PM PDT Sun Jun 7 2020 /745 PM MST Sun Jun 7 2020/ ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT /8 PM MST/ THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 226, 227, 460, AND 462... Winds will remain elevated through late tonight as a cold front passes. This will shift the winds from southwest to the northwest. However, with RH values increasing going into tonight, we will allow the Red Flag Warning to expire. $$ weather.gov/lasvegas
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 7:59 PM MST | Wind Advisory | VEF | Mohave | 30 hr |
| Jun 7, 2:26 AM MST | Lake Wind Advisory | VEF | Mohave | 35 hr |
Nearby
Red Flag Warnings in Nevada, 2020Red Flag Warnings in California, 2020Red Flag Warnings in Arizona, 2020Every red flag warning in 2020
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.