Alert archive / Nevada / Red Flag Warnings in 2017
Red Flag Warning 8, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at May 25, 2017, 2:47 AM MST for Mohave County, Arizona; Clark County, Lincoln County, Nye County, Nevada. It took effect at May 25, 2017, 2:00 PM MST. It was in force for 7 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
- May 25, 2017, 2:47 AM MST (09:47 UTC)
- In effect from
- May 25, 2017, 2:00 PM MST
- Expired
- May 25, 2017, 9:00 PM MST
- In force
- 7 hr
- Issued by
- NWS Las Vegas, NV
Counties Mohave County, AZ, Clark County, NV, Lincoln County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 134 km from the middle of the area, began a volume at 09:50 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, 9.8 hours before the alert went out and 74 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
- 5449 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
668 WWUS85 KVEF 250947 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 247 AM PDT Thu May 25 2017 Enhanced west to southwesterly flow will result in breezy to windy conditions across the region today. Hot and dry conditions are expected again today and will combine with strong, gusty winds this afternoon to increase the potential for rapid fire growth and spread through the early evening hours. AZZ101-102-NVZ463>466-252230- /O.NEW.KVEF.FW.W.0008.170525T2100Z-170526T0400Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau-Sheep Range-Spring Mountains- Clark and SW Lincoln County Deserts/Las Vegas Dispatch- Lake Mead NRA/Colorado River-NV side- 247 AM PDT Thu May 25 2017 /247 AM MST Thu May 25 2017/ ...RED FLAG WARNING IN EFFECT FROM 2 PM PDT /2 PM MST/ THIS AFTERNOON TO 9 PM PDT /9 PM MST/ THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 2 PM PDT /2 PM MST/ this afternoon to 9 PM PDT /9 PM MST/ this evening. * AFFECTED AREA...In Arizona...Fire weather zones 101 and 102.In Nevada...Fire weather zones 463, 464, 465, and 466. * TIMING...Winds will increase early this afternoon and remain gusty into the evening hours. * WIND...Southwest 20 to 25 MPH with gusts to around 35 MPH. * HUMIDITY...Single digit in the lower elevations to lower teens in the higher elevations. * 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. && $$ weather.gov/lasvegas
1 follow-up statement
244 WWUS85 KVEF 260343 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 843 PM PDT Thu May 25 2017 AZZ101-102-NVZ463>466-260445- /O.EXP.KVEF.FW.W.0008.000000T0000Z-170526T0400Z/ Lake Mead NRA/Colorado River-AZ side- Northwest Deserts/Northwest Plateau-Sheep Range-Spring Mountains- Clark and SW Lincoln County Deserts/Las Vegas Dispatch- Lake Mead NRA/Colorado River-NV side- 843 PM PDT Thu May 25 2017 /843 PM MST Thu May 25 2017/ ...RED FLAG WARNING WILL EXPIRE AT 9 PM THIS EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES... Winds will continue to ease this evening with improving fire weather conditions expected. However...conditions will remain dry through the weekend. $$ weather.gov/lasvegas
Nearby
Red Flag Warnings in Nevada, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.