Alert archive / Nevada / Flash Flood Warnings in 2011
Flash Flood Warning 82, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 11, 2011, 5:34 PM PDT for Nye County, Nevada. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 11, 2011, 5:34 PM PDT (00:34 UTC)
- Expired
- Sep 11, 2011, 7:30 PM PDT
- In force
- 116 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Nye County, NV
The radar
The Las Vegas radar (KESX), 162 km from the middle of the area, began a volume at 00:36 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, 0.6 hours before the alert went out and 67 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
- NaN m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 167 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
172 WGUS55 KVEF 120034 FFWVEF NVC023-120230- /O.NEW.KVEF.FF.W.0082.110912T0034Z-110912T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 534 PM PDT SUN SEP 11 2011 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL NYE COUNTY IN SOUTH CENTRAL NEVADA... * UNTIL 730 PM PDT. * AT 530 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY RAIN FROM A THUNDERSTORM OVER SOUTH CENTRAL NYE COUNTY... OR 12 MILES NORTH OF MERCURY. THE STORM PRODUCING HEAVY RAIN WAS NEARLY STATIONARY. RADAR ESTIMATED RAINFALL HAS BEEN IN EXCESS OF THREE INCHES OVER A LARGE AREA WITH ALL OF THE RUNOFF FLOWING INTO SOUTHERN NYE COUNTY. * LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF SOUTHERN NYE COUNTY...NORTH OF MERCURY PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS. && LAT...LON 3692 11608 3693 11590 3674 11590 3674 11608 $$ SC
2 follow-up statements
273 WGUS75 KVEF 120143 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 643 PM PDT SUN SEP 11 2011 NVC023-120230- /O.CON.KVEF.FF.W.0082.000000T0000Z-110912T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NYE NV- 643 PM PDT SUN SEP 11 2011 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM PDT FOR SOUTH CENTRAL NYE COUNTY... AT 633 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR THAT MUCH OF THE HEAVY RAINFALL HAS MOVED TO THE NORTH OR HAS DIMINISHED. HOWEVER...SIGNIFICANT RUNOFF AND RAPIDLY RUNNING WASHES WILL CONTINUE THROUGH 730 PM. LOCATIONS IMPACTED INCLUDE... THE SOUTHERN PORTIONS OF THE NEVADA NATIONAL SECURITY SITE. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS. && LAT...LON 3692 11608 3693 11590 3674 11590 3674 11608 $$ SC
688 WGUS75 KVEF 120226 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 726 PM PDT SUN SEP 11 2011 NVC023-120235- /O.EXP.KVEF.FF.W.0082.000000T0000Z-110912T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NYE NV- 726 PM PDT SUN SEP 11 2011 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 PM PDT FOR SOUTH CENTRAL NYE COUNTY... THE FLASH FLOOD WARNING FOR SOUTH CENTRAL NYE COUNTY WILL BE ALLOWED TO EXPIRE AT 730 PM. RUNOFF FROM EARLIER RAIN SHOULD BE DIMINISHING. ANY OF THE WASHES IN THE AREA WILL CONTINUE TO RUN RAPIDLY FOR THE REMAINDER OF THE EVENING. LAT...LON 3692 11608 3693 11590 3674 11590 3674 11608 $$ SC
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 7:04 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 41 min |
Nearby
Flash Flood Warnings in Nevada, 2011Every flash flood warning in 2011
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.