Alert archive / Nevada / Red Flag Warnings in 2016
Red Flag Warning 11, NWS Las Vegas, NV
NWS Las Vegas, NV issued this red flag warning at Oct 18, 2016, 2:16 PM PDT for Clark County, Nevada; Mohave County, Arizona; San Bernardino County, California. It took effect at Oct 19, 2016, 8:00 AM PDT. It was in force for 28 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
- Oct 18, 2016, 2:16 PM PDT (21:16 UTC)
- In effect from
- Oct 19, 2016, 8:00 AM PDT
- Expired
- Oct 20, 2016, 12:00 PM PDT
- In force
- 28 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 21:18 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 12:00Z, 9.3 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
- 2160 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- -59 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
252 WWUS85 KVEF 182116 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 216 PM PDT TUE OCT 18 2016 .STRONG NORTHERLY WINDS WILL DEVELOP ALONG THE LOWER COLORADO RIVER VALLEY ON WEDNESDAY AS A SURFACE RIDGE DEVELOPS NEAR THE COAST OF CALIFORNIA AND A WEAK SYSTEM MOVES THROUGH THE ROCKIES. VERY DRY AIR WILL BE IN PLACE AS THESE STRONG WINDS DEVELOP. AS A RESULT, CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR FROM LATE WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING. THE AREA OF GREATEST CONCERN IS FROM THE HOOVER DAM SOUTHWARD TO LAKE HAVASU. AZZ101-CAZ229-NVZ466-190530- /O.UPG.KVEF.FW.A.0007.161019T1500Z-161021T0000Z/ /O.NEW.KVEF.FW.W.0011.161019T1500Z-161020T0700Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 216 PM PDT TUE OCT 18 2016 /216 PM MST TUE OCT 18 2016/ ...RED FLAG WARNING IN EFFECT FROM 8 AM PDT /8 AM MST/ WEDNESDAY TO MIDNIGHT PDT /MIDNIGHT MST/ WEDNESDAY NIGHT FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A RED FLAG WARNING...WHICH IS IN EFFECT FROM 8 AM PDT /8 AM MST/ WEDNESDAY TO MIDNIGHT PDT /MIDNIGHT MST/ WEDNESDAY NIGHT. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * TIMING...WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING. * WIND...NORTH 20 TO 30 MPH WITH GUSTS TO 40 MPH. * MINIMUM HUMIDITY...5 TO 10 PERCENT PRIMARILY DURING THE AFTERNOON HOURS. * 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. && $$ CMS WEATHER.GOV/LASVEGAS
6 follow-up statements
917 WWUS85 KVEF 190511 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 1011 PM PDT TUE OCT 18 2016 .STRONG NORTHERLY WINDS WILL DEVELOP ALONG THE LOWER COLORADO RIVER VALLEY ON WEDNESDAY AS A SURFACE RIDGE DEVELOPS NEAR THE COAST OF CALIFORNIA AND A WEAK SYSTEM MOVES THROUGH THE ROCKIES. VERY DRY AIR WILL BE IN PLACE AS THESE STRONG WINDS DEVELOP. AS A RESULT... CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR FROM LATE WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING. THE AREA OF GREATEST CONCERN IS FROM THE HOOVER DAM SOUTHWARD TO LAKE HAVASU. AZZ101-CAZ229-NVZ466-191315- /O.CON.KVEF.FW.W.0011.161019T1500Z-161020T0700Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 1011 PM PDT TUE OCT 18 2016 /1011 PM MST TUE OCT 18 2016/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM PDT /8 AM MST/ WEDNESDAY TO MIDNIGHT PDT /MIDNIGHT MST/ WEDNESDAY NIGHT FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... * TIMING...WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING. * WIND...NORTH 20 TO 30 MPH WITH GUSTS TO 40 MPH. * MINIMUM HUMIDITY...5 TO 10 PERCENT PRIMARILY DURING THE AFTERNOON HOURS. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WEATHER.GOV/LASVEGAS
771 WWUS85 KVEF 191158 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 458 AM PDT WED OCT 19 2016 .STRONG NORTHERLY WINDS WILL DEVELOP ALONG THE LOWER COLORADO RIVER VALLEY TODAY AS A SURFACE RIDGE DEVELOPS NEAR THE COAST OF CALIFORNIA AND A WEAK SYSTEM MOVES THROUGH THE ROCKIES. VERY DRY AIR WILL BE IN PLACE AS THESE STRONG WINDS DEVELOP. AS A RESULT... CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR FROM LATE THIS MORNING THROUGH LATE THIS EVENING. THE AREA OF GREATEST CONCERN IS FROM THE HOOVER DAM SOUTHWARD TO LAKE HAVASU. AZZ101-CAZ229-NVZ466-191515- /O.CON.KVEF.FW.W.0011.161019T1500Z-161020T0700Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 458 AM PDT WED OCT 19 2016 /458 AM MST WED OCT 19 2016/ ...RED FLAG WARNING REMAINS IN EFFECT FROM 8 AM PDT /8 AM MST/ THIS MORNING TO MIDNIGHT PDT /MIDNIGHT MST/ TONIGHT FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... * TIMING...WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING. * WIND...NORTH 20 TO 30 MPH WITH GUSTS TO 40 MPH. * MINIMUM HUMIDITY...5 TO 10 PERCENT PRIMARILY DURING THE AFTERNOON HOURS. * 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. && $$ WEATHER.GOV/LASVEGAS
059 WWUS85 KVEF 191513 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 813 AM PDT WED OCT 19 2016 .STRONG NORTHERLY WINDS WILL DEVELOP ALONG THE LOWER COLORADO RIVER VALLEY TODAY AS A SURFACE RIDGE DEVELOPS NEAR THE COAST OF CALIFORNIA AND A WEAK SYSTEM MOVES THROUGH THE ROCKIES. VERY DRY AIR WILL BE IN PLACE AS THESE STRONG WINDS DEVELOP. AS A RESULT... CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR FROM LATE THIS MORNING THROUGH LATE THIS EVENING. THE AREA OF GREATEST CONCERN IS FROM THE HOOVER DAM SOUTHWARD TO LAKE HAVASU. AZZ101-CAZ229-NVZ466-200215- /O.CON.KVEF.FW.W.0011.000000T0000Z-161020T0700Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 813 AM PDT WED OCT 19 2016 /813 AM MST WED OCT 19 2016/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT /MIDNIGHT MST/ TONIGHT FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... * TIMING...THROUGH LATE EVENING TODAY. * WIND...NORTH 20 TO 30 MPH WITH GUSTS TO 40 MPH. * MINIMUM HUMIDITY...5 TO 10 PERCENT PRIMARILY DURING THE AFTERNOON HOURS. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ WEATHER.GOV/LASVEGAS
337 WWUS85 KVEF 192140 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 240 PM PDT WED OCT 19 2016 .STRONG NORTHERLY WINDS WILL DEVELOP ALONG THE LOWER COLORADO RIVER VALLEY TODAY AS A SURFACE RIDGE DEVELOPS NEAR THE COAST OF CALIFORNIA AND A WEAK SYSTEM MOVES THROUGH THE ROCKIES. VERY DRY AIR WILL BE IN PLACE AS THESE STRONG WINDS DEVELOP. AS A RESULT... CRITICAL FIRE WEATHER CONDITIONS WILL OCCUR FROM LATE THIS MORNING THROUGH LATE THIS EVENING. THE AREA OF GREATEST CONCERN IS FROM THE HOOVER DAM SOUTHWARD TO LAKE HAVASU. AZZ101-CAZ229-NVZ466-201200- /O.EXT.KVEF.FW.W.0011.000000T0000Z-161020T1900Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 240 PM PDT WED OCT 19 2016 /240 PM MST WED OCT 19 2016/ ...RED FLAG WARNING NOW IN EFFECT UNTIL NOON PDT /NOON MST/ THURSDAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... * TIMING...THROUGH MID DAY THURSDAY. * WIND...NORTH 20 TO 30 MPH WITH GUSTS TO 35 MPH. WINDS ARE EXPECTED TO DIMINISH AFTER NOON THURSDAY. * MINIMUM HUMIDITY...HUMIDITY RECOVERIES ARE ONLY EXPECTED TO BE AROUND 15 PERCENT OVERNIGHT AND THEN DROP TO AROUND 10 TO 15 PERCENT AFTER SUNRISE. * 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. && $$ WEATHER.GOV/LASVEGAS
204 WWUS85 KVEF 200918 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 218 AM PDT THU OCT 20 2016 .GUSTY NORTH WINDS WILL PERSIST THROUGH THE MORNING...ESPECIALLY IN THE LAUGHLIN BULLHEAD CITY AREA...BEFORE DIMINISHING. RELATIVE HUMIDITIES WILL HOVER IN THE UPPER TEENS OVERNIGHT AND FALL INTO THE LOWER TEENS DURING THE DAY. AZZ101-CAZ229-NVZ466-201900- /O.CON.KVEF.FW.W.0011.000000T0000Z-161020T1900Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 218 AM PDT THU OCT 20 2016 /218 AM MST THU OCT 20 2016/ ...RED FLAG WARNING REMAINS IN EFFECT UNTIL NOON PDT /NOON MST/ TODAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... * TIMING...THROUGH MIDDAY TODAY. * WIND...NORTH 20 TO 30 MPH WITH GUSTS TO 35 MPH. WINDS ARE EXPECTED TO DIMINISH AFTER NOON. * MINIMUM HUMIDITY...HUMIDITIES WILL HOVER IN THE UPPER TEENS OVERNIGHT AND DROP INTO THE LOWER TEENS DURING THE DAY. * IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT RECOMMENDED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW....OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES CAN CONTRIBUTE TO EXTREME FIRE BEHAVIOR. && $$ MORGAN WEATHER.GOV/LASVEGAS
378 WWUS85 KVEF 201854 RFWVEF URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE LAS VEGAS NV 1154 AM PDT THU OCT 20 2016 AZZ101-CAZ229-NVZ466-202000- /O.EXP.KVEF.FW.W.0011.000000T0000Z-161020T1900Z/ LAKE MEAD NRA/COLORADO RIVER-AZ SIDE-LOWER COLORADO RIVER VALLEY- LAKE MEAD NRA/COLORADO RIVER-NV SIDE- 1154 AM PDT THU OCT 20 2016 /1154 AM MST THU OCT 20 2016/ ...RED FLAG WARNING WILL EXPIRE AT NOON PDT /NOON MST/ TODAY FOR STRONG WINDS AND LOW RELATIVE HUMIDITY... WINDS ARE EXPECTED TO DIMINISH SLOWLY ACROSS THE AREA THIS AFTERNOON...AND WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS ARE NOT EXPECTED. THEREFORE...THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...WINDS WILL REMAIN BREEZY THIS AFTERNOON...AND THE FIRE DANGER WILL REMAIN ELEVATED THROUGH SUNSET. $$ CMS WEATHER.GOV/LASVEGAS
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 2:24 PM PDT | Wind Advisory | VEF | 34 hr |
Nearby
Red Flag Warnings in Nevada, 2016Red Flag Warnings in Arizona, 2016Red Flag Warnings in California, 2016Every red flag warning in 2016
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.