Alert archive / Nevada / Red Flag Warnings in 2017
Red Flag Warning 5, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at May 14, 2017, 2:32 AM PDT for Clark County, Lincoln County, Nye County, Nevada. It took effect at May 14, 2017, 11:00 AM PDT. 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
- May 14, 2017, 2:32 AM PDT (09:32 UTC)
- In effect from
- May 14, 2017, 11:00 AM PDT
- Expired
- May 14, 2017, 8:00 PM PDT
- In force
- 9 hr
- Issued by
- NWS Las Vegas, NV
Counties Clark County, NV, Lincoln County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 185 km from the middle of the area, began a volume at 09:37 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, 9.5 hours before the alert went out and 103 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
- 4478 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
823 WWUS85 KVEF 140932 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 232 AM PDT Sun May 14 2017 AZZ102-141045- /O.CAN.KVEF.FW.A.0003.170514T1800Z-170515T0300Z/ Northwest Deserts/Northwest Plateau- 232 AM MST Sun May 14 2017 ...FIRE WEATHER WATCH IS CANCELLED FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONE 102... The National Weather Service in Las Vegas has cancelled the Fire Weather Watch. RH values across the drier portions of Mohave County look to remain at or just above 15 percent and therefore the watch will not be upgraded to a Red Flag Warning. Care should be exercised with fire in the area as near critical conditions are expected. $$ NVZ462>464-141815- /O.UPG.KVEF.FW.A.0003.170514T1800Z-170515T0300Z/ /O.NEW.KVEF.FW.W.0005.170514T1800Z-170515T0300Z/ Nye County Deserts/Las Vegas Dispatch-Sheep Range- Spring Mountains- 232 AM PDT Sun May 14 2017 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 462, 463, AND 464... The National Weather Service in Las Vegas has issued a Red Flag Warning, which is in effect from 11 AM this morning to 8 PM PDT this evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...In Nevada...Fire weather zones 462, 463, and 464. * TIMING...late Sunday morning through Sunday evening. * WIND...south 15 to 25 mph with gusts around 35 mph. * HUMIDITY...minimum relative humidity 7 to 11 percent. * IMPACTS...any fires that develop will likely spread rapidly and exhibit extreme fire behavior. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ Wolcott weather.gov/lasvegas
2 follow-up statements
090 WWUS85 KVEF 141759 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 1059 AM PDT Sun May 14 2017 NVZ462>464-150300- /O.CON.KVEF.FW.W.0005.170514T1800Z-170515T0300Z/ Nye County Deserts/Las Vegas Dispatch-Sheep Range- Spring Mountains- 1059 AM PDT Sun May 14 2017 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 462, 463, AND 464... * AFFECTED AREA...In Nevada...Fire weather zones 462, 463, and 464. * TIMING...through this evening. * WIND...south 15 to 25 mph with gusts around 35 mph. * HUMIDITY...minimum relative humidity 7 to 11 percent. * IMPACTS...any fires that develop will likely spread rapidly and exhibit extreme fire behavior. 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. && $$ weather.gov/lasvegas
710 WWUS85 KVEF 150236 RFWVEF URGENT - FIRE WEATHER MESSAGE National Weather Service Las Vegas NV 736 PM PDT Sun May 14 2017 NVZ462>464-150345- /O.EXP.KVEF.FW.W.0005.000000T0000Z-170515T0300Z/ Nye County Deserts/Las Vegas Dispatch-Sheep Range- Spring Mountains- 736 PM PDT Sun May 14 2017 ...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR STRONG WINDS AND LOW RH FOR FIRE WEATHER ZONES 462, 463, AND 464... Winds were decreasing over southern Nevada early this evening. The Red Flag Warning will be allowed to expire. $$ Morgan 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 14, 2:51 AM PDT | Lake Wind Advisory | VEF | 17 hr |
Nearby
Red Flag Warnings in Nevada, 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.