Alert archive / Arizona / Red Flag Warnings in 2017
Red Flag Warning 9, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at May 26, 2017, 3:21 AM MST for Mohave County, Arizona. It took effect at May 26, 2017, 1:00 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 26, 2017, 3:21 AM MST (10:21 UTC)
- In effect from
- May 26, 2017, 1:00 PM MST
- Expired
- May 26, 2017, 8:00 PM MST
- In force
- 7 hr
- Issued by
- NWS Las Vegas, NV
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 102 km from the middle of the area, began a volume at 10:23 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, 10.4 hours before the alert went out and 177 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
- 5 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 4489 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 53 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
909 WWUS85 KVEF 261021 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 321 AM PDT Fri May 26 2017 Enhanced southwesterly flow will result in breezy to windy conditions across much of the region today. Hot and dry conditions are expected again today and will combine with gusty winds this afternoon to increase the potential for rapid fire growth and spread through the early evening hours. AZZ102-270300- /O.NEW.KVEF.FW.W.0009.170526T2000Z-170527T0300Z/ Northwest Deserts/Northwest Plateau- 321 AM MST Fri May 26 2017 ...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM MST THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONE 102... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 1 PM this afternoon to 8 PM MST this evening. * AFFECTED AREA...In Arizona...Fire weather zone 102. * 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...Humidity values will generally be in the 10 to 15 percent range during the afternoon. * 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. && $$ weather.gov/lasvegas
1 follow-up statement
935 WWUS85 KVEF 270249 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 749 PM PDT Fri May 26 2017 AZZ102-270400- /O.EXP.KVEF.FW.W.0009.000000T0000Z-170527T0300Z/ Northwest Deserts/Northwest Plateau- 749 PM MST Fri May 26 2017 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONE 102... Winds will continue to decrease tonight with dry conditions expected through the weekend. $$ weather.gov/lasvegas
Nearby
Red 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.