Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 83, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 31, 2012, 4:29 PM MST for Mohave County, Arizona. It was in force for 2 hr. 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 31, 2012, 4:29 PM MST (23:29 UTC)
- Expired
- Jul 31, 2012, 6:30 PM MST
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 135 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 153 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
- 209 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 818 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
309 WGUS55 KVEF 312329 FFWVEF AZC015-010130- /O.NEW.KVEF.FF.W.0083.120731T2329Z-120801T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 429 PM MST TUE JUL 31 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 630 PM MST. * AT 423 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM OVER CENTRAL MOHAVE COUNTY...OR 48 MILES NORTHEAST OF KINGMAN...OR ABOUT 10 MILES SOUTH OF THE DIAMOND CREEK CAMPGROUND. THE STORM WAS MOVING TO THE NORTH AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... DIAMOND CREEK CAMPGROUND. 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 3576 11343 3576 11333 3557 11334 3560 11344 $$ SC
2 follow-up statements
026 WGUS75 KVEF 010039 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 539 PM MST TUE JUL 31 2012 AZC015-010130- /O.CON.KVEF.FF.W.0083.000000T0000Z-120801T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 539 PM MST TUE JUL 31 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR CENTRAL MOHAVE COUNTY... AT 532 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THE THUNDERSTORMS HAVE MOVED NORTH OF THE AREA WARNED AREA. RUNOFF FROM THE EARLIER RAIN IS STILL LIKELY MOVING DOWN WASH TOWARD THE DIAMOND CREEK CAMPGROUND. LOCATIONS IMPACTED INCLUDE...DIAMOND CREEK CAMPGROUND. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3576 11343 3576 11333 3557 11334 3560 11344 $$ SC
674 WGUS75 KVEF 010126 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 626 PM MST TUE JUL 31 2012 AZC015-010134- /O.EXP.KVEF.FF.W.0083.000000T0000Z-120801T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 626 PM MST TUE JUL 31 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 630 PM MST FOR CENTRAL MOHAVE COUNTY... AS OF 625 PM MST...NO REPORTS OF FLASH FLOODING HAVE BEEN REPORTED. PARK RANGERS ARE EXPECTED TO SURVEY TOMORROW FOR ANY EVIDENCE OF FLOODING. THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 630 MST. LAT...LON 3576 11343 3576 11333 3557 11334 3560 11344 $$ SC
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 2:29 AM MST | Flash Flood Watch | VEF | Mohave | 19 hr |
| Jul 31, 12:14 PM MST | Areal Flood Advisory | VEF | Mohave | 83 min |
| Jul 31, 1:55 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 31, 2:21 PM MST | Flash Flood Warning | VEF | Mohave | 114 min |
| Jul 31, 2:42 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 31, 2:48 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 31, 3:12 PM MST | Areal Flood Advisory | VEF | Mohave | 113 min |
| Jul 31, 3:24 PM MST | Flash Flood Warning | VEF | Mohave | 111 min |
| Jul 31, 4:15 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
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.