Alert archive / California / Flash Flood Warnings in 2014
Flash Flood Warning 49, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 28, 2014, 1:09 PM PDT for San Bernardino County, California. It was in force for 3 hr. 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 28, 2014, 1:09 PM PDT (20:09 UTC)
- Expired
- Jul 28, 2014, 4:00 PM PDT
- In force
- 3 hr
- 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), 71 km from the middle of the area, began a volume at 20:11 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
San Diego, CA (KNKX), launched 12:00Z, 8.2 hours before the alert went out and 344 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
- 1683 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
224
WGUS55 KVEF 282009
FFWVEF
CAC071-282300-
/O.NEW.KVEF.FF.W.0049.140728T2009Z-140728T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
109 PM PDT MON JUL 28 2014
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTH CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 400 PM PDT
* AT 100 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM OVER NORTH CENTRAL SAN
BERNARDINO COUNTY...OR 12 MILES WEST OF PRIMM...MOVING NORTH AT 5
MPH.
* LOCATIONS IMPACTED INCLUDE...
KINGSTON ROAD AND EXCELSIOR MINE ROAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!
REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.
&&
LAT...LON 3578 11593 3579 11563 3562 11543 3549 11546
3549 11556 3544 11575
$$
SC3 follow-up statements
920
WGUS75 KVEF 282106
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
206 PM PDT MON JUL 28 2014
CAC071-282300-
/O.CON.KVEF.FF.W.0049.000000T0000Z-140728T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
206 PM PDT MON JUL 28 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR NORTH
CENTRAL SAN BERNARDINO COUNTY...
AT 200 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING FLASH FLOODING. THE STORMS WERE
LOCATED OVER NORTH CENTRAL SAN BERNARDINO COUNTY...OR 14 MILES WEST
OF PRIMM...MOVING NORTHEAST AT 5 MPH. THE NATIONAL WEATHER SERVICE
RADAR INDICATES IN EXCESS OF TWO INCHES OF RAIN HAS FALLEN NORTH OF
MOUNTAIN PASS.
LOCATIONS IMPACTED INCLUDE...
KINGSTON ROAD AND EXCELSIOR MINE ROAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!
REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.
&&
LAT...LON 3578 11593 3579 11563 3562 11543 3549 11546
3549 11556 3544 11575
$$
SC717
WGUS75 KVEF 282212
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
312 PM PDT MON JUL 28 2014
CAC071-282300-
/O.CON.KVEF.FF.W.0049.000000T0000Z-140728T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
312 PM PDT MON JUL 28 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR NORTH
CENTRAL SAN BERNARDINO COUNTY...
AT 306 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THAT THUNDERSTORMS HAVE MOVED FURTHER SOUTH AND ARE PRIMARILY
ALONG AND SOUTH OF INTERSTATE 15. FLASH FLOODING IS LIKELY STILL
OCCURRING IN NORTH CENTRAL SAN BERNARDINO COUNTY.
LOCATIONS IMPACTED INCLUDE...
KINGSTON ROAD AND EXCELSIOR MINE ROAD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!
REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.
&&
LAT...LON 3578 11593 3579 11563 3562 11543 3549 11546
3549 11556 3544 11575
$$
SC690
WGUS75 KVEF 282254
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
354 PM PDT MON JUL 28 2014
CAC071-282301-
/O.EXP.KVEF.FF.W.0049.000000T0000Z-140728T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
354 PM PDT MON JUL 28 2014
...THE FLASH FLOOD WARNING WILL EXPIRE AT 400 PM PDT FOR NORTH
CENTRAL SAN BERNARDINO COUNTY...
THE THUNDERSTORMS HAVE DIMINISHED OVER KINGSTON ROAD AND EXCELSIOR
MINE ROAD. RUNOFF MAY CONTINUE TO PRODUCE SOME MINOR FLOODING AND
PONDING OF WATER...BUT THE FLASH FLOOD THREAT HAS DIMINISHED...
THEREFORE THE FLASH FLOOD WARNING FOR NORTH CENTRAL SAN BERNARDINO
COUNTY WILL BE ALLOWED TO EXPIRE AT 400 PM.
LAT...LON 3578 11593 3579 11563 3562 11543 3549 11546
3549 11556 3544 11575
$$
SCThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 6:35 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 28, 3:13 AM PDT | Flash Flood Watch | VEF | Inyo, San Bernardino | 18 hr |
| Jul 28, 1:27 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 28, 2:39 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
Nearby
Flash Flood Warnings in California, 2014Every flash flood warning in 2014
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.