Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 170, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 25, 2012, 5:22 PM MST for Mohave County, Arizona. It was in force for 113 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
- Aug 25, 2012, 5:22 PM MST (00:22 UTC)
- Expired
- Aug 25, 2012, 7:15 PM MST
- In force
- 113 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 00:23 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 00:00Z, 0.4 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1813 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
878
WGUS55 KVEF 260022
FFWVEF
AZC015-260215-
/O.NEW.KVEF.FF.W.0170.120826T0022Z-120826T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
522 PM MST SAT AUG 25 2012
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...
* UNTIL 715 PM MST.
* AT 514 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM NEAR DIAMOND M RANCH...OR 38
MILES EAST OF KINGMAN. THE STORM PRODUCING VERY HEAVY RAIN WAS
NEARLY STATIONARY.
* LOCATIONS IMPACTED INCLUDE...
DIAMOND M RANCH.
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 3518 11334 3519 11347 3528 11363 3537 11365
3544 11361 3552 11360 3557 11349 3556 11333
3547 11332
$$
JENSEN2 follow-up statements
945
WGUS75 KVEF 260134
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
634 PM MST SAT AUG 25 2012
AZC015-260215-
/O.CON.KVEF.FF.W.0170.000000T0000Z-120826T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
634 PM MST SAT AUG 25 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM MST FOR
CENTRAL MOHAVE COUNTY...
AT 624 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN. THIS STORM WAS
LOCATED NEAR DIAMOND M RANCH...OR 38 MILES EAST OF KINGMAN. THE
THUNDERSTORM WITH EXCESSIVE RAIN IS SLOWLY MOVING TO THE NORTH.
SPOTTER REPORT FROM DIAMOND M RANCH INDICATED THAT THE RAIN HAS
STOPPED IN THAT AREA...BUT THE WASHES ARE RUNNING FULL OF WATER.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 89 AND 93.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3518 11334 3519 11347 3528 11363 3537 11365
3544 11361 3552 11360 3557 11349 3556 11333
3547 11332
$$
JENSEN894
WGUS75 KVEF 260212
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
712 PM MST SAT AUG 25 2012
AZC015-260220-
/O.EXP.KVEF.FF.W.0170.000000T0000Z-120826T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
712 PM MST SAT AUG 25 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 715 PM MST FOR CENTRAL
MOHAVE COUNTY...
THUNDERSTORMS HAVE MOVED NORTH OUT OF THE AREA AND HEAVY RAINFALL IS
NO LONGER EXPECTED. THUS WILL ALLOW THE FLASH FLOOD WARNING TO
EXPIRE AS OF 715 PM MST.
ALTHOUGH THE WARNING WILL BE ALLOWED TO EXPIRE...PEOPLE IN THE AREA
SHOULD BE AWARE THAT WATER IS LIKELY FLOWING THROUGH NORMALLY DRY
WASHES AND THAT PONDING OF WATER IN LOW LYING AREAS WILL LIKELY BE
ENCOUNTERED WELL INTO THE EVENING. USE EXTRA CAUTION THIS
EVENING...ESPECIALLY AFTER SUNSET AS WATER IS MUCH HARDER TO SEE AT
NIGHT.
LAT...LON 3518 11334 3519 11347 3528 11363 3537 11365
3544 11361 3552 11360 3557 11349 3556 11333
3547 11332
$$
JENSENNearby
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.