Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 61, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 30, 2012, 11:01 AM MST for Mohave County, Arizona. It was in force for 119 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
- Jul 30, 2012, 11:01 AM MST (18:01 UTC)
- Expired
- Jul 30, 2012, 1:00 PM MST
- In force
- 119 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), 133 km from the middle of the area, began a volume at 18:03 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
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 6.0 hours before the alert went out and 202 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
- 168 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 929 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
412 WGUS55 KVEF 301801 FFWVEF AZC015-302000- /O.NEW.KVEF.FF.W.0061.120730T1801Z-120730T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 1101 AM MST MON JUL 30 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 100 PM MST. * AT 1050 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A SERIES OF THUNDERSTORMS PASSING OVER THE SAME GENERAL AREA OF SOUTH CENTRAL MOHAVE COUNTY...OR 14 MILES WEST OF WIKIEUP...MOVING NORTHWEST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE...THE PORTION OF ALAMO CROSSING ROAD BETWEEN YUCCA AND PLANET RANCH ROAD. 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 3482 11408 3492 11393 3472 11375 3464 11389 $$ PIERCE
2 follow-up statements
242 WGUS75 KVEF 301910 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1210 PM MST MON JUL 30 2012 AZC015-302000- /O.CON.KVEF.FF.W.0061.000000T0000Z-120730T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 1210 PM MST MON JUL 30 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 100 PM MST FOR SOUTH CENTRAL MOHAVE COUNTY... AT 1159 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY RAIN HAVE MOVED AWAY FROM ALAMO CROSSING ROAD BETWEEN YUCCA AND PLANET RANCH ROAD. RUNOFF FROM EARLIER HEAVY RAIN WILL CONTINUE IN NORMALLY DRY WASHES AND LOW WATER CROSSINGS THROUGH 1 PM MST. LOCATIONS IMPACTED INCLUDE...ALAMO CROSSING ROAD BETWEEN YUCCA AND PLANET RANCH ROAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3482 11408 3492 11393 3472 11375 3464 11389 $$ PIERCE
758 WGUS75 KVEF 301958 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1258 PM MST MON JUL 30 2012 AZC015-302007- /O.EXP.KVEF.FF.W.0061.000000T0000Z-120730T2000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 1258 PM MST MON JUL 30 2012 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL MOHAVE COUNTY... THUNDERSTORMS AND HEAVY RAIN HAVE NOT OCCURRED IN THE WARNING HOUR FOR THE PAST HOUR. THE FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 1 PM MST. LAT...LON 3482 11408 3492 11393 3472 11375 3464 11389 $$ PIERCE
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 9:00 PM MST | Flash Flood Watch | VEF | Mohave | 25 hr |
| Jul 30, 11:42 AM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 30, 12:05 PM MST | Areal Flood Advisory | VEF | Mohave | 115 min |
| Jul 30, 1:16 PM MST | Flash Flood Warning | VEF | Mohave | 119 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.