Alert archive / California / Flash Flood Warnings in 2014
Flash Flood Warning 3, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 5, 2014, 12:48 PM PDT for San Bernardino County, California. It was in force for 3 hr. 2 reports 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
- Jul 5, 2014, 12:48 PM PDT (19:48 UTC)
- Expired
- Jul 5, 2014, 3:45 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), 99 km from the middle of the area, began a volume at 19:50 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 |
|---|---|---|---|
| Jul 5, 1:19 PM PDT | FLASH FLOOD | 3 Sse Needles, CA | CALIFORNIA HIGHWAY PATROL REPORTS THAT 5 MILE ROAD AND HIGHWAY 95 IS COMPLETELY IMPASSABLE DUE TO FLOODING. |
| Jul 5, 1:19 PM PDT | FLASH FLOOD | 4 Sse Needles, CA | CALIFORNIA HIGHWAY PATROL HAS SHUT DOWN HIGHWAY 95 FROM VIDAL JUNCTION TO INTERSTATE 40 DUE TO FLASH FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 12:00Z, 7.8 hours before the alert went out and 189 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
- 82 J/kg
- Mixed-layer CIN
- -249 J/kg
- Mixed-layer LCL
- 2430 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- -8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
200
WGUS55 KVEF 051948
FFWVEF
CAC071-052245-
/O.NEW.KVEF.FF.W.0003.140705T1948Z-140705T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
1248 PM PDT SAT JUL 5 2014
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA...
* UNTIL 345 PM PDT
* AT 1241 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
FLASH FLOODING FROM A THUNDERSTORM NEAR NEEDLES...THIS STORM WAS
PRODUCING VERY HEAVY RAIN AND MOVING NORTH AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
NEEDLES AND THE NEEDLES KOA CAMPGROUND
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 3475 11470 3495 11474 3496 11463 3487 11463
3483 11458 3475 11455
$$
STUMPF3 follow-up statements
447
WGUS75 KVEF 052051
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
151 PM PDT SAT JUL 5 2014
CAC071-052245-
/O.CON.KVEF.FF.W.0003.000000T0000Z-140705T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
151 PM PDT SAT JUL 5 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM PDT FOR EAST
CENTRAL SAN BERNARDINO COUNTY...
AT 146 PM PDT...THE THUNDERSTORM PRODUCING HEAVY RAINFALL OVER
NEEDLES HAS MOVED OUT OF THE AREA BUT RUNOFF FROM THIS HEAVY RAIN IS
STILL CAPABLE OF PRODUCING FLASH FLOODING. CALIFORNIA HIGHWAY PATROL
HAS REPORTED FLASH FLOODING ALONG US 95 JUST SOUTH OF NEEDLES.
LOCATIONS IMPACTED INCLUDE...US 95 SOUTH OF INTERSTATE 40 AND
NEEDLES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
ROADS. TO ESCAPE RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO
CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT
DROWN!
REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA
FACEBOOK OR TWITTER.
&&
LAT...LON 3475 11470 3495 11474 3496 11463 3487 11463
3483 11458 3475 11455
$$
STUMPF198
WGUS75 KVEF 052203
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
303 PM PDT SAT JUL 5 2014
CAC071-052245-
/O.CON.KVEF.FF.W.0003.000000T0000Z-140705T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
303 PM PDT SAT JUL 5 2014
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM PDT FOR EAST
CENTRAL SAN BERNARDINO COUNTY...
AT 257 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES TO
SHOW THUNDERSTORMS DEVELOPING OVER THE WARNED AREA. ANY ADDITIONAL
RAINFALL FROM THESE STORMS WILL CONTINUE TO CAUSE FLOODING OF LOW
LYING AREAS ON US 95 SOUTH OF NEEDLES.
LOCATIONS IMPACTED INCLUDE...
US 95 SOUTH OF NEEDLES.
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 3475 11470 3495 11474 3496 11463 3487 11463
3483 11458 3475 11455
$$
STUMPF198
WGUS75 KVEF 052237
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
337 PM PDT SAT JUL 5 2014
CAC071-052246-
/O.EXP.KVEF.FF.W.0003.000000T0000Z-140705T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SAN BERNARDINO CA-
337 PM PDT SAT JUL 5 2014
...THE FLASH FLOOD WARNING WILL EXPIRE AT 345 PM PDT FOR EAST CENTRAL
SAN BERNARDINO COUNTY. ADDITIONAL THUNDERSTORMS AND SHOWERS ARE POSSIBLE
THIS AFTERNOON BUT THE IMMEDIATE THREAT FOR FLASH FLOODING HAS ENDED....
LAT...LON 3475 11470 3495 11474 3496 11463 3487 11463
3483 11458 3475 11455
$$
STUMPFThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 10:57 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 5, 11:09 AM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 34 min |
| Jul 5, 11:24 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Jul 5, 1:12 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 5, 2:14 PM PDT | Flash Flood Warning | VEF | Inyo, San Bernardino | 3 hr |
| Jul 5, 2:22 PM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 5, 3:17 PM PDT | Flash Flood Warning | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.