Alert archive / California / Flash Flood Warnings in 2016
Flash Flood Warning 27, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 1, 2016, 4:24 PM PDT for San Bernardino County, California. It was in force for 3 hr. 3 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 1, 2016, 4:24 PM PDT (23:24 UTC)
- Expired
- Jul 1, 2016, 7:30 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 Edwards AFB radar (KEYX), 51 km from the middle of the area, began a volume at 23:27 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 1, 4:25 PM PDT | FLASH FLOOD | 2 Sw Barstow, CA | SPOTTER REPORTED 8-12 INCHES OF WATER FLOWING ON RIMROCK RD NEAR AND EAST OF H ST. |
| Jul 1, 4:45 PM PDT | FLASH FLOOD | 1 Sse Barstow, CA | SWIFT WATER RESCUE AT CENTER ST AND UPTON DR. TIME APPROXIMATE. |
| Jul 1, 5:00 PM PDT | FLASH FLOOD | 2 S Barstow, CA | CALIFORNIA HIGHWAY PATROL REPORTS FLOODING AND DEBRIS ACROSS ALL LANES OF STATE HIGHWAY 247 AT MILE MARKER 77. |
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, 11.4 hours before the alert went out and 208 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
- 2227 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -79 m²/s²
- 0-3 km storm-relative helicity
- -47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
288 WGUS55 KVEF 012324 FFWVEF CAC071-020230- /O.NEW.KVEF.FF.W.0027.160701T2324Z-160702T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 424 PM PDT FRI JUL 1 2016 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... WEST CENTRAL SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA... * UNTIL 730 PM PDT * AT 423 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA GENERALLY ALONG INTERSTATE 40 WEST AND EAST OF BARSTOW. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... BARSTOW...DAGGETT...I-15 BETWEEN VICTORVILLE AND BARSTOW... HWY 247 BETWEEN LUCERNE VALLEY AND BARSTOW... OWL CANYON CAMPGROUND...NEWBERRY SPRINGS...LENWOOD... NEBO CENTER AND HELENDALE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3481 11746 3522 11740 3515 11638 3474 11645 $$ JH
2 follow-up statements
371 WGUS75 KVEF 020054 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 554 PM PDT FRI JUL 1 2016 CAC071-020230- /O.CON.KVEF.FF.W.0027.000000T0000Z-160702T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN BERNARDINO CA- 554 PM PDT FRI JUL 1 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM PDT FOR WEST CENTRAL SAN BERNARDINO COUNTY... AT 553 PM PDT...DOPPLER RADAR INDICATED ANOTHER ROUND OF THUNDERSTORMS PRODUCING HEAVY RAIN MOVING FROM WEST TO EAST ACROSS THE WARNED AREA. THE THREAT OF FLASH FLOODING CONTINUES. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... BARSTOW...DAGGETT...I-15 BETWEEN VICTORVILLE AND BARSTOW...HWY 247 BETWEEN LUCERNE VALLEY AND BARSTOW...OWL CANYON CAMPGROUND...NEWBERRY SPRINGS...LENWOOD...NEBO CENTER AND HELENDALE. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3481 11746 3522 11740 3515 11638 3474 11645 $$ JH
135 WGUS75 KVEF 020222 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 722 PM PDT FRI JUL 1 2016 CAC071-020231- /O.EXP.KVEF.FF.W.0027.000000T0000Z-160702T0230Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ SAN BERNARDINO CA- 722 PM PDT FRI JUL 1 2016 ...THE FLASH FLOOD WARNING FOR WEST CENTRAL SAN BERNARDINO COUNTY WILL EXPIRE AT 730 PM PDT... THE HEAVY RAIN HAS ENDED. FLOOD WATERS WILL CONTINUE TO RECEDE. FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES. LAT...LON 3481 11746 3522 11740 3515 11638 3474 11645 $$ JH
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 5:48 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 42 min |
| Jun 30, 5:54 PM PDT | Flash Flood Warning | VEF | San Bernardino | 6 hr |
| Jun 30, 6:26 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 34 min |
| Jun 30, 6:59 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 31 min |
| Jun 30, 10:32 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jun 30, 10:56 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 64 min |
| Jun 30, 11:08 PM PDT | Flash Flood Warning | VEF | Inyo | 4 hr |
| Jun 30, 11:49 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| Jul 1, 1:41 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 2:06 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 3:36 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Jul 1, 3:12 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 63 min |
| Jul 1, 3:25 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Jul 1, 4:05 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 55 min |
| Jul 1, 4:59 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 61 min |
Nearby
Flash Flood Warnings in California, 2016Every flash flood warning in 2016
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.