Alert archive / California / Flash Flood Warnings in 2014
Flash Flood Warning 39, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 26, 2014, 6:38 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 26, 2014, 6:38 PM PDT (01:38 UTC)
- Expired
- Jul 26, 2014, 9:30 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 San Diego radar (KNKX), 184 km from the middle of the area, began a volume at 01:41 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 00:00Z, 1.6 hours before the alert went out and 204 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
- 1957 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
811
WGUS55 KVEF 270138
FFWVEF
CAC071-270430-
/O.NEW.KVEF.FF.W.0039.140727T0138Z-140727T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
638 PM PDT SAT JUL 26 2014
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 930 PM PDT
* AT 637 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAINFALL FROM A THUNDERSTORM OVER EXTREME SOUTH CENTRAL
SAN BERNARDINO COUNTY...OR 22 MILES EAST OF TWENTYNINE
PALMS. THE STORM PRODUCING HEAVY RAINFALL WAS NEARLY STATIONARY.
* LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHERN SAN BERNARDINO COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED ON ROADS...IN NORMALLY DRY WASHES AND LOW
LYING AREAS. 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 3417 11575 3415 11565 3412 11560 3409 11559
3408 11561 3405 11560 3404 11560 3404 11575
$$
MJP2 follow-up statements
592
WGUS75 KVEF 270312
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
812 PM PDT SAT JUL 26 2014
CAC071-270430-
/O.CON.KVEF.FF.W.0039.000000T0000Z-140727T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
812 PM PDT SAT JUL 26 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM PDT FOR SOUTH
CENTRAL SAN BERNARDINO COUNTY...
AT 810 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
HEAVY RAINFALL FROM THUNDERSTORMS PRODUCED BETWEEN 2 AND 3 INCHES
OF RAINFALL IN LESS THAN 2 HOURS OVER THE WARNED AREA. WHILE THE
STORMS HAVE DISSIPATED AND HEAVY RAINFALL IS NO LONGER A
THREAT...RUNOFF FROM THOSE PREVIOUS STORMS WILL LIKELY CONTINUE FOR
THE NEXT HOUR OR SO ALONG HIGHWAY 62 BETWEEN MILE MARKERS 52 AND 60.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHERN SAN BERNARDINO COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!
REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.
&&
LAT...LON 3417 11575 3415 11565 3412 11560 3409 11559
3408 11561 3405 11560 3404 11560 3404 11575
$$
MJP478
WGUS75 KVEF 270421
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
921 PM PDT SAT JUL 26 2014
CAC071-270429-
/O.CAN.KVEF.FF.W.0039.000000T0000Z-140727T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
921 PM PDT SAT JUL 26 2014
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL SAN
BERNARDINO COUNTY...
THUNDERSTORMS HAVE LONG EXITED THE AREA AND ANY RUNOFF HAS LIKELY
DIMINISHED. THUS...THE WARNING HAS BEEN CANCELLED.
LAT...LON 3417 11575 3415 11565 3412 11560 3409 11559
3408 11561 3405 11560 3404 11560 3404 11575
$$The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:34 PM PDT | Flash Flood Warning | VEF | San Bernardino | 5 hr |
| Jul 27, 3:58 PM PDT | Areal Flood Advisory | VEF | Inyo | 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.