Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 26, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 14, 2012, 4:33 PM PDT for San Bernardino County, California. It was in force for 117 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, 4:33 PM PDT (23:33 UTC)
- Expired
- Jul 14, 2012, 6:30 PM PDT
- In force
- 117 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County San Bernardino County, CA
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 11.6 hours before the alert went out and 193 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
- 372 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1206 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
726 WGUS55 KVEF 142333 FFWVEF CAC071-150130- /O.NEW.KVEF.FF.W.0026.120714T2333Z-120715T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 433 PM PDT SAT JUL 14 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA... * UNTIL 630 PM PDT. * AT 431 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM NEAR NEWBERRY MOUNTAIN RV PARK...OR 17 MILES EAST OF DAGGETT...MOVING NORTH AT 5 MPH. * LOCATIONS IMPACTED INCLUDE... NEWBERRY MOUNTAIN RV PARK. THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 19 AND 32. 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 3493 11670 3499 11643 3474 11647 3476 11672 $$ JH
2 follow-up statements
448 WGUS75 KVEF 150033 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 533 PM PDT SAT JUL 14 2012 CAC071-150130- /O.CON.KVEF.FF.W.0026.000000T0000Z-120715T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN BERNARDINO CA- 533 PM PDT SAT JUL 14 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM PDT FOR CENTRAL SAN BERNARDINO COUNTY... AT 528 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED RAINFALL OVER THE AREA WAS BEGINNING TO DECREASE BUT SOME ADDITIONAL RAIN COMBINED WITH RUNOFF FROM EARLIER HEAVY RAIN MAY STILL LEAD TO FLASH FLOODING. LOCATIONS IMPACTED INCLUDE... NEWBERRY SPRINGS...INTERSTATE 40 BETWEEN MILE MARKERS 19 AND 32 AND ROUTE 66. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES... AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3493 11670 3499 11643 3474 11647 3476 11672 $$ JH
754 WGUS75 KVEF 150123 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 623 PM PDT SAT JUL 14 2012 CAC071-150132- /O.EXP.KVEF.FF.W.0026.000000T0000Z-120715T0130Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN BERNARDINO CA- 623 PM PDT SAT JUL 14 2012 ...THE FLASH FLOOD WARNING WILL EXPIRE AT 630 PM PDT FOR CENTRAL SAN BERNARDINO COUNTY... THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 19 AND 32. THERE HAS BEEN NO HEAVY RAIN OBSERVED IN THE WARNING AREA FOR AWHILE AND NO REPORTS OF FLOODING. LAT...LON 3493 11670 3499 11643 3474 11647 3476 11672 $$ JH
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 5:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 13, 5:55 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 13, 6:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 13, 7:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 13, 8:00 PM PDT | Flash Flood Warning | VEF | San Bernardino | 61 min |
| Jul 13, 8:50 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 13, 9:39 PM PDT | Flash Flood Warning | VEF | San Bernardino | 81 min |
| Jul 13, 11:46 PM PDT | Flash Flood Warning | VEF | San Bernardino | 97 min |
| Jul 14, 12:19 AM PDT | Flash Flood Warning | VEF | Inyo | 86 min |
| Jul 14, 1:09 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 35 min |
| Jul 14, 1:19 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 min |
| Jul 14, 1:34 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Jul 14, 1:36 PM PDT | Flash Flood Warning | VEF | San Bernardino | 114 min |
| Jul 14, 1:42 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 21 min |
| Jul 14, 4:22 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 38 min |
| Jul 14, 4:29 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 2 hr |
| Jul 14, 4:38 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
Nearby
Flash Flood Warnings in California, 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.