Alert archive / Nevada / Red Flag Warnings in 2017
Red Flag Warning 3, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at May 5, 2017, 2:41 PM PDT for Clark County, Nevada; San Bernardino County, California; Mohave County, Arizona. It took effect at May 6, 2017, 11:00 AM PDT. It was in force for 9 hr. 6 reports 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
- May 5, 2017, 2:41 PM PDT (21:41 UTC)
- In effect from
- May 6, 2017, 11:00 AM PDT
- Expired
- May 6, 2017, 8:00 PM PDT
- In force
- 9 hr
- Issued by
- NWS Las Vegas, NV
Counties Mohave County, AZ, San Bernardino County, CA, Clark County, NV
The radar
The Las Vegas radar (KESX), 15 km from the middle of the area, began a volume at 21:45 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 |
|---|---|---|---|
| May 6, 12:30 PM PDT | NON-TSTM WND DMG | 2 Nnw The Strip, NV | STRONG WIND GUSTS KNOCKED A POWER POLE DOWN PUTTING OVER 2,000 PEOPLE WITHOUT POWER. |
| May 6, 2:15 PM PDT | NON-TSTM WND GST 46 | 1 Nw George Afb, CA | AWOS STATION VCV, VICTORVILLE AIRPORT. |
| May 6, 3:00 PM PDT | HIGH SUST WINDS 49 | 5 Ene George Afb, CA | MESONET STATION GHG39, VICTORVILLE (5 N). |
| May 6, 3:16 PM PDT | NON-TSTM WND GST 54 | 2 Wsw Lucerne Valley, CA | MESONET STATION F0119, LUCERNE VALLEY (1 SW). |
| May 6, 3:55 PM PDT | NON-TSTM WND GST 48 | 4 Nne Apple Valley, CA | MESONET STATION KAPV, APPLE VALLEY AIRPORT (KAPV). |
| May 6, 5:00 PM PDT | NON-TSTM WND DMG | Mesquite, NV | *** 2 INJ *** MESQUITE LOCAL NEWS REPORTS SUDDEN WINDS TOSSED 5 TO 6 CANOPY TENTS DURING A LOCAL CARNIVAL CAUSING TWO INJURIES. LOCALIZED WIND GUSTS 40-50 MPH WERE POSSIBLE AT THE TIME. TIME ESTIMATED BASED ON REPORTS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 9.7 hours before the alert went out and 101 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
- 3911 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
840 WWUS85 KVEF 052141 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 241 PM PDT Fri May 5 2017 .Strong low pressure will move to the south central California coast on Saturday bringing an increase in wind to combine with dry conditions over portions of Mohave County. AZZ102-061200- /O.UPG.KVEF.FW.A.0002.170506T1800Z-170507T0300Z/ /O.NEW.KVEF.FW.W.0003.170506T1800Z-170507T0300Z/ Northwest Deserts/Northwest Plateau- 241 PM MST Fri May 5 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MST SATURDAY FOR STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MST Saturday. This replaces the Fire Weather Watch previously in effect. * AFFECTED AREA...In Arizona...Fire weather zone 102. * TIMING...Winds will increase late Saturday morning and continue into the early evening before decreasing. The winds will combine with low humidity and dry fuels to increase fire concerns. * WIND...South 20 to 30 MPH with gusts up to 45 MPH. * HUMIDITY...10 to 15 percent * IMPACTS...A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor burning is not recommended for northwest Arizona Saturday. && $$ weather.gov/lasvegas
4 follow-up statements
063 WWUS85 KVEF 060059 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 559 PM PDT Fri May 5 2017 .Strong low pressure will move to the south central California coast on Saturday bringing an increase in wind to combine with dry conditions over portions of Mohave County. AZZ101-CAZ229-NVZ466-061200- /O.EXA.KVEF.FW.W.0003.170506T1800Z-170507T0300Z/ Lake Mead NRA/Colorado River-AZ side-Lower Colorado River Valley- Lake Mead NRA/Colorado River-NV side- 559 PM PDT Fri May 5 2017 /559 PM MST Fri May 5 2017/ ...RED FLAG WARNING IN EFFECT FROM 11 AM PDT /11 AM MST/ TO 8 PM PDT /8 PM MST/ SATURDAY FOR STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY FOR THE COLORADO RIVER VALLEY... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 11 AM PDT /11 AM MST/ to 8 PM PDT /8 PM MST/ Saturday. * AFFECTED AREA...In Arizona...Fire weather zone 101. In California...Fire weather zone 229. In Nevada...Fire weather zone 466. * TIMING...Winds will increase late Saturday morning and continue into the early evening before decreasing. The winds will combine with low humidity and dry fuels to increase fire concerns. * WIND...South 15 to 25 MPH with gusts 35 to 40 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor burning is not recommended for northwest Arizona Saturday. && $$ AZZ102-061200- /O.CON.KVEF.FW.W.0003.170506T1800Z-170507T0300Z/ Northwest Deserts/Northwest Plateau- 559 PM MST Fri May 5 2017 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MST SATURDAY FOR STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY FOR MOHAVE COUNTY... * AFFECTED AREA...In Arizona...Fire weather zone 102. * TIMING...Winds will increase late Saturday morning and continue into the early evening before decreasing. The winds will combine with low humidity and dry fuels to increase fire concerns. * WIND...South 20 to 30 MPH with gusts up to 45 MPH. * HUMIDITY...10 to 15 percent * IMPACTS...A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor burning is not recommended for northwest Arizona Saturday. && $$ weather.gov/lasvegas
935 WWUS85 KVEF 061015 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 315 AM PDT Sat May 6 2017 .Strong low pressure will move to the south central California coast on Saturday bringing an increase in wind to combine with dry conditions over portions of Mohave County. AZZ101-102-CAZ229-NVZ466-061800- /O.CON.KVEF.FW.W.0003.170506T1800Z-170507T0300Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau-Lower Colorado River Valley- Lake Mead NRA/Colorado River-NV side- 315 AM PDT Sat May 6 2017 /315 AM MST Sat May 6 2017/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM PDT /11 AM MST/ THIS MORNING TO 8 PM PDT /8 PM MST/ THIS EVENING FOR STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY FOR THE COLORADO RIVER VALLEY... * AFFECTED AREA...In Arizona...Fire weather zone 101. In California...Fire weather zone 229. In Nevada...Fire weather zone 466. * TIMING...Winds will increase late Saturday morning and continue into the early evening before decreasing. The winds will combine with low humidity and dry fuels to increase fire concerns. * WIND...South 15 to 25 MPH with gusts 35 to 40 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor burning is not recommended for northwest Arizona Saturday. && $$ weather.gov/lasvegas
867 WWUS85 KVEF 061740 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 1040 AM PDT Sat May 6 2017 .Strong low pressure will move to the south central California coast today bringing an increase in wind to combine with dry conditions over portions of Mohave County. AZZ101-102-CAZ229-NVZ466-070300- /O.CON.KVEF.FW.W.0003.170506T1800Z-170507T0300Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau-Lower Colorado River Valley- Lake Mead NRA/Colorado River-NV side- 1040 AM PDT Sat May 6 2017 /1040 AM MST Sat May 6 2017/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT /8 PM MST/ THIS EVENING FOR STRONG SOUTH WINDS AND LOW RELATIVE HUMIDITY FOR THE COLORADO RIVER VALLEY... * AFFECTED AREA...In Arizona...Fire weather zone 101. In California...Fire weather zone 229. In Nevada...Fire weather zone 466. * TIMING...Winds will continue into the early evening before decreasing. The winds will combine with low humidity and dry fuels to increase fire concerns. * WIND...South 15 to 25 MPH with gusts 35 to 40 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Outdoor burning is not recommended for northwest Arizona today. && $$ Wolcott weather.gov/lasvegas
682 WWUS85 KVEF 070258 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 758 PM PDT Sat May 6 2017 AZZ101-102-CAZ229-NVZ466-070400- /O.EXP.KVEF.FW.W.0003.000000T0000Z-170507T0300Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau-Lower Colorado River Valley- Lake Mead NRA/Colorado River-NV side- 758 PM PDT Sat May 6 2017 /758 PM MST Sat May 6 2017/ ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT /8 PM MST/ THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 101, 102, 229, AND 466... Winds were decreasing and relative humidity values have increased to above 15 percent in most locations in Mohave County and Colorado River Valley. $$ weather.gov/lasvegas
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 2:43 PM PDT | Wind Advisory | VEF | Clark, Esmeralda, Lincoln, Nye | 29 hr |
| May 5, 2:37 AM PDT | Fire Weather Watch | VEF | Mohave | 12 hr |
Nearby
Red Flag Warnings in Nevada, 2017Red Flag Warnings in California, 2017Red Flag Warnings in Arizona, 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.