Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 33, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 14, 2012, 8:20 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
- Jul 14, 2012, 8:20 PM MST (03:20 UTC)
- Expired
- Jul 14, 2012, 10:15 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), 112 km from the middle of the area, began a volume at 03:20 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, 3.3 hours before the alert went out and 205 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
- 48 J/kg
- Mixed-layer CIN
- -202 J/kg
- Mixed-layer LCL
- 2462 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
750
WGUS55 KVEF 150320
FFWVEF
AZC015-150515-
/O.NEW.KVEF.FF.W.0033.120715T0320Z-120715T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
820 PM MST SAT JUL 14 2012
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN MOHAVE COUNTY IN NORTHWEST ARIZONA...
* UNTIL 1015 PM MST/1015 PM PDT/.
* AT 811 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM 6 MILES NORTHEAST OF TOPOCK.
THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY.
* LOCATIONS IMPACTED INCLUDE...
TOPAC
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 1 AND 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES...
AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS
NATURES NUMBER ONE KILLER. 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 3475 11451 3483 11449 3488 11438 3485 11425
3471 11431 3467 11445 3471 11447
$$
JENSEN2 follow-up statements
766
WGUS75 KVEF 150425
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
925 PM MST SAT JUL 14 2012
AZC015-150515-
/O.CON.KVEF.FF.W.0033.000000T0000Z-120715T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
925 PM MST SAT JUL 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM MST/1015 PM
PDT/ FOR SOUTHWESTERN MOHAVE COUNTY...
AT 916 PM MST...THUNDERSTORMS HAVE MOVED TO THE SOUTH AND EAST OF
TOPOCK...HOWEVER HEAVY RAIN WHICH FELL EARLIER IS STILL LIKELY
FLOWING THROUGH THE AREA.
LOCATIONS IMPACTED INCLUDE...
TOPOCK
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 1 AND 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES...
AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS
NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR
WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3475 11451 3483 11449 3488 11438 3485 11425
3471 11431 3467 11445 3471 11447
$$
JENSEN840
WGUS75 KVEF 150514
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1014 PM MST SAT JUL 14 2012
AZC015-150519-
/O.EXP.KVEF.FF.W.0033.000000T0000Z-120715T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
1014 PM MST SAT JUL 14 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM MST FOR
SOUTHWESTERN MOHAVE COUNTY...
THE FLASH FLOOD WARNING FOR THE TOPOCK AREA WILL BE ALLOWED TO
EXPIRE AS OF 1015 PM MST. THE HEAVY RAINFALL EARLY HAS MOVED OUT OF
THE REGION AND ALTHOUGH LIGHT RAIN SHOWERS WILL BE SEEN THROUGH THE
REMAINDER OF THE EVENING...HEAVY RAINFALL IS NO LONGER EXPECTED.
TRAVELERS THROUGH THE REGION SHOULD BE AWARE THAT ROADWAYS IN THE
AREA MAY BE CLOSED. IN ADDITION...WATER MAY BE FLOWING IN NORMALLY
DRY WASHES AND ACROSS LOW WATER CROSSINGS THROUGH THE NIGHT AND
EXTRA CAUTION IS URGED.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 1 AND 10.
LAT...LON 3475 11451 3483 11449 3488 11438 3485 11425
3471 11431 3467 11445 3471 11447
$$
JENSENThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 5:10 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 14, 5:30 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 14, 6:36 PM MST | Flash Flood Warning | VEF | Mohave | 114 min |
| Jul 14, 10:01 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 15, 10:14 AM MST | Flash Flood Watch | VEF | Mohave | 11 hr |
| Jul 15, 12:53 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Jul 15, 4:40 PM MST | Flash Flood Warning | VEF | Mohave | 65 min |
| Jul 15, 4:58 PM MST | Flash Flood Warning | VEF | Mohave | 92 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.