Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 108, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 9, 2012, 4:32 PM MST for Mohave County, Arizona. It was in force for 118 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 9, 2012, 4:32 PM MST (23:32 UTC)
- Expired
- Aug 9, 2012, 6:30 PM MST
- In force
- 118 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), 63 km from the middle of the area, began a volume at 23:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 5:00 PM MST | FLASH FLOOD | 12 Ne Dolan Springs, AZ | STOCKTON HILL ROAD WAS FLOODED AND CLOSED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 11.5 hours before the alert went out and 145 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
- 4744 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
189
WGUS55 KVEF 092332
FFWVEF
AZC015-100130-
/O.NEW.KVEF.FF.W.0108.120809T2332Z-120810T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
432 PM MST THU AUG 9 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 422 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM NEAR DOLAN SPRINGS...OR 30
MILES NORTH OF KINGMAN...MOVING SOUTH AT 10 MPH.
* LOCATIONS IMPACTED INCLUDE...
DOLAN SPRINGS...PIERCE FERRY ROAD AND STOCKTON HILLS 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 3564 11442 3565 11414 3582 11414 3584 11406
3550 11391 3550 11431
$$
JS2 follow-up statements
333
WGUS75 KVEF 100031
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
531 PM MST THU AUG 9 2012
AZC015-100130-
/O.CON.KVEF.FF.W.0108.000000T0000Z-120810T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
531 PM MST THU AUG 9 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM MST FOR
CENTRAL MOHAVE COUNTY...
AT 521 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN. THIS STORM WAS
LOCATED BETWEEN DOLAN SPRINGS AND CHLORIDE AND WAS MOVING SOUTH AT
10 MPH.
LOCATIONS IMPACTED INCLUDE...
DOLAN SPRINGS...PIERCE FERRY ROAD AND STOCKTON HILLS ROAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3564 11442 3565 11414 3582 11414 3584 11406
3550 11391 3550 11431
$$
JS868
WGUS75 KVEF 100128
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
628 PM MST THU AUG 9 2012
AZC015-100137-
/O.EXP.KVEF.FF.W.0108.000000T0000Z-120810T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
628 PM MST THU AUG 9 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 630 PM MST FOR CENTRAL
MOHAVE COUNTY...
THUNDERSTORMS THAT PRODUCED THE EARLIER HEAVY RAIN HAVE DISSIPATED
AND FLASH FLOODING IS NO LONGER EXPECTED. ELEVATED WATER LEVELS AND
PONDING OF WATER IN LOW LYING AREAS IS STILL POSSIBLE THROUGH 8 PM.
LAT...LON 3564 11442 3565 11414 3582 11414 3584 11406
3550 11391 3550 11431
$$
JSThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 2:43 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Aug 9, 2:58 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Aug 9, 3:55 PM MST | Flash Flood Warning | VEF | Mohave | 102 min |
| Aug 9, 4:04 PM MST | Flash Flood Warning | VEF | Mohave | 116 min |
| Aug 9, 4:48 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.