Alert archive / California / Flash Flood Warnings in 2012
Flash Flood Warning 35, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 14, 2012, 9:16 PM PDT for San Bernardino County, California. It was in force for 119 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, 9:16 PM PDT (04:16 UTC)
- Expired
- Jul 14, 2012, 11:15 PM PDT
- In force
- 119 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County San Bernardino County, CA
The radar
The Las Vegas radar (KESX), 110 km from the middle of the area, began a volume at 04:16 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, 4.3 hours before the alert went out and 183 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.
488
WGUS55 KVEF 150416
FFWVEF
CAC071-150615-
/O.NEW.KVEF.FF.W.0035.120715T0416Z-120715T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
916 PM PDT SAT JUL 14 2012
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 1115 PM PDT.
* AT 912 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM AN AREA OF THUNDERSTORMS ALONG INTERSTATE 40 AND
ROUTE 66 NEAR ESSEX. THE STORMS PRODUCING FLASH FLOODING WERE NEARLY
STATIONARY. THIS FLASH FLOOD WARNING REPLACES A FLOOD ADVISORY
ISSUED EARLIER.
* LOCATIONS IMPACTED INCLUDE...
ESSEX.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 77 AND 125 AND
ROUTE 66.
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 3497 11491 3461 11486 3462 11521 3450 11521
3448 11576 3486 11569 3499 11519
$$
JH2 follow-up statements
919
WGUS75 KVEF 150529
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1029 PM PDT SAT JUL 14 2012
CAC071-150615-
/O.CON.KVEF.FF.W.0035.000000T0000Z-120715T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
1029 PM PDT SAT JUL 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM PDT FOR EAST
CENTRAL SAN BERNARDINO COUNTY...
AT 1024 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING. THIS STORM WAS
LOCATED NEAR ESSEX...OR 22 MILES SOUTHEAST OF MITCHELL CAVERNS. THE
THUNDERSTORM WITH EXCESSIVE RAIN WAS NEARLY STATIONARY.
LOCATIONS IMPACTED INCLUDE...
ESSEX.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 77 AND 125 AND
ROUTE 66.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3497 11491 3461 11486 3462 11521 3450 11521
3448 11576 3486 11569 3499 11519
$$
JH150
WGUS75 KVEF 150608
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1108 PM PDT SAT JUL 14 2012
CAC071-150617-
/O.EXP.KVEF.FF.W.0035.000000T0000Z-120715T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
1108 PM PDT SAT JUL 14 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 1115 PM PDT FOR EAST
CENTRAL SAN BERNARDINO COUNTY...
RAINFALL HAS ENDED IN THE WARNING AREA AND THERE HAVE BEEN NO
REPORTS OF FLOODING. THEREFORE THE WARNING IS ALLOWED TO EXPIRE.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 77 AND 125.
LAT...LON 3497 11491 3461 11486 3462 11521 3450 11521
3448 11576 3486 11569 3499 11519
$$
JHThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 7:25 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 14, 8:50 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 27 min |
| Jul 14, 11:35 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 40 min |
| Jul 15, 12:29 AM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Jul 15, 10:14 AM PDT | Flash Flood Watch | VEF | San Bernardino | 11 hr |
| Jul 15, 11:52 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 15, 11:59 AM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 15, 2:20 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 115 min |
| Jul 15, 3:07 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 38 min |
| Jul 15, 4:52 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 38 min |
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; radar from the NEXRAD Level II archive.