Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 194, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 10, 2012, 5:35 PM MST for Mohave County, Arizona. It was in force for 115 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 10, 2012, 5:35 PM MST (00:35 UTC)
- Expired
- Sep 10, 2012, 7:30 PM MST
- In force
- 115 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 88 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 137 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
- 3264 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
947 WGUS55 KVEF 110035 FFWVEF AZC015-110230- /O.NEW.KVEF.FF.W.0194.120911T0035Z-120911T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 535 PM MST MON SEP 10 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 730 PM MST. * AT 532 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR SOUTH COVE...OR 38 MILES SOUTHEAST OF OVERTON...MOVING NORTH AT 5 MPH. * LOCATIONS IMPACTED INCLUDE... PEARCE FERRY ROAD...PEARCE FERRY AND SOUTH COVE 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 BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3615 11408 3614 11397 3603 11401 3605 11412 $$ JA
2 follow-up statements
878 WGUS75 KVEF 110059 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 559 PM MST MON SEP 10 2012 AZC015-110230- /O.CON.KVEF.FF.W.0194.000000T0000Z-120911T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 559 PM MST MON SEP 10 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM MST FOR CENTRAL MOHAVE COUNTY... AT 555 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE THUNDERSTORM NEAR SOUTH COVE AND PEARCE FERRY WAS WEAKENING. HOWEVER...OVER AN INCH OF RAINFALL IN LESS THAN AN HOUR WAS INDICATED ALONG PEARCE FERRY ROAD AND RUNOFF WILL LIKELY PRODUCE WATER AND DEBRIS OVER THE ROAD BETWEEN MEADVIEW AND PEARCE FERRY THROUGH 730 PM MST. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3615 11408 3614 11397 3603 11401 3605 11412 $$ JA
981 WGUS75 KVEF 110228 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 728 PM MST MON SEP 10 2012 AZC015-110238- /O.EXP.KVEF.FF.W.0194.000000T0000Z-120911T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 728 PM MST MON SEP 10 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 730 PM MST FOR CENTRAL MOHAVE COUNTY... AT 728 PM MST...RADAR SHOWED THAT RAIN HAD ENDED OVER PIERCE FERRY ROAD. NO REPORTS OF FLOODING HAD BEEN RECEIVED...SO THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE. LAT...LON 3615 11408 3614 11397 3603 11401 3605 11412 $$ MORGAN
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 3:24 AM MST | Flash Flood Warning | VEF | Mohave | 111 min |
| Sep 11, 5:05 AM MST | Flash Flood Warning | VEF | Mohave | 65 min |
| Sep 11, 2:16 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 44 min |
Nearby
Flash Flood Warnings in Arizona, 2012Every flash flood warning in 2012
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.