Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 180, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Sep 4, 2012, 2:36 PM MST for Mohave County, Arizona. It was in force for 114 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
- Sep 4, 2012, 2:36 PM MST (21:36 UTC)
- Expired
- Sep 4, 2012, 4:30 PM MST
- In force
- 114 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), 149 km from the middle of the area, began a volume at 21:36 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 |
|---|---|---|---|
| Sep 4, 3:27 PM MST | HEAVY RAIN 3 | 10 Ssw Mt. Trumbull, AZ | TRAINED SPOTTER AT BAR TEN RANCH REPORTED 3 INCHES OF RAIN IN THE LAST HOUR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.6 hours before the alert went out and 173 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
- 188 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 1448 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- -2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
188 WGUS55 KVEF 042136 FFWVEF AZC015-042330- /O.NEW.KVEF.FF.W.0180.120904T2136Z-120904T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 236 PM MST TUE SEP 4 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 430 PM MST. * AT 230 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR BAR TEN RANCH...OR 53 MILES SOUTH OF COLORADO CITY. THE STORM PRODUCING VERY HEAVY RAIN WAS NEARLY STATIONARY. EXTREMELY HEAVY RAIN ALONG WITH A FEW INCHES OF STANDING WATER WAS REPORTED RECENTLY BY THE STAFF AT THE BAR TEN RANCH. * LOCATIONS IMPACTED INCLUDE... BAR TEN 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. CAMPERS AND HIKERS SHOULD BE ALERT TO THE POSSIBILITY OF RAPIDLY RISING WATER AND BE PREPARED TO MOVE QUICKLY TO HIGHER GROUND IF FLASH FLOODING IS OBSERVED. && LAT...LON 3605 11348 3616 11353 3635 11313 3619 11309 $$ STACHELSKI
2 follow-up statements
017 WGUS75 KVEF 042228 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 328 PM MST TUE SEP 4 2012 AZC015-042330- /O.CON.KVEF.FF.W.0180.000000T0000Z-120904T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 328 PM MST TUE SEP 4 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM MST FOR CENTRAL MOHAVE COUNTY... AT 325 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN. THIS STORM WAS LOCATED NEAR BAR TEN RANCH...OR 51 MILES SOUTH OF COLORADO CITY. THE THUNDERSTORM WITH EXCESSIVE RAIN WAS NEARLY STATIONARY. THE BAR TEN RANCH MEASURED 3 INCHES OF RAIN FROM THIS STORM IN ROUGHLY THE LAST HOUR. LOCATIONS IMPACTED INCLUDE... THE BAR TEN RANCH. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3605 11348 3616 11353 3635 11313 3619 11309 $$ STACHELSKI
004 WGUS75 KVEF 042329 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 429 PM MST TUE SEP 4 2012 AZC015-042338- /O.EXP.KVEF.FF.W.0180.000000T0000Z-120904T2330Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 429 PM MST TUE SEP 4 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 430 PM MST FOR CENTRAL MOHAVE COUNTY... THUNDERSTORMS WITH HEAVY RAIN HAVE WEAKENED IN THE BAR TEN RANCH AREA. THE FLASH FLOOD WARNING WILL EXPIRE AT 430 PM MST. LAT...LON 3605 11348 3616 11353 3635 11313 3619 11309 $$ PIERCE
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 10:48 AM MST | Flash Flood Warning | VEF | Mohave | 117 min |
| Sep 4, 12:11 PM MST | Flash Flood Warning | VEF | Mohave | 64 min |
| Sep 4, 2:54 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Sep 4, 3:47 PM MST | Flash Flood Warning | VEF | Mohave | 34 min |
| Sep 4, 4:50 PM MST | Severe Thunderstorm Warning | VEF | Mohave | 40 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.