Alert archive / California / Flash Flood Warnings in 2018
Flash Flood Warning 155, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Oct 13, 2018, 12:15 AM PDT for San Bernardino County, California. It was in force for 4 hr. 7 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
- Oct 13, 2018, 12:15 AM PDT (07:15 UTC)
- Expired
- Oct 13, 2018, 4:15 AM PDT
- In force
- 4 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County San Bernardino County, CA
The radar
The Santa Ana Mts radar (KSOX), 138 km from the middle of the area, began a volume at 07:15 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 |
|---|---|---|---|
| Oct 13, 1:00 AM PDT | FLASH FLOOD | 2 E Landers, CA | CHP REPORTED A VEHICLE WAS FORCED OFF THE ROADWAY DUE TO FLOODING ON BONITA AVE AND RECHE RD. |
| Oct 13, 1:16 AM PDT | FLASH FLOOD | 4 Nne Joshua Tree, CA | CHP REPORTED THE RIGHT SIDE OF THE ROADWAY WASHED OUT WITH FLOOD WATERS AND A VEHICLE STUCK ON THE ROAD ALONG BORDER AVENUE AND ABERDEEN DRIVE. |
| Oct 13, 1:29 AM PDT | FLASH FLOOD | 1 Ene Yucca Valley, CA | CHP REPORTED A VEHICLE STALLED IN FLOOD WATERS ON THE ROADWAY ALONG SR62 AND JOSHUA LANE. |
| Oct 13, 1:40 AM PDT | FLASH FLOOD | 4 Nnw Joshua Tree, CA | CHP REPORTED SUNNY VISTA RD WASHED OUT. PEOPLE TRIED TO LEAVE A CAMPGROUND BUT COULD NOT PASS THROUGH THE ROADWAY. |
| Oct 13, 1:40 AM PDT | FLASH FLOOD | 4 Nnw Joshua Tree, CA | CHP REPORTED SUNNY VISTA RD WASHED OUT. PEOPLE TRIED TO LEAVE CAMPGROUND BUT COULD NOT PASS THROUGH THE ROADWAY. |
| Oct 13, 1:44 AM PDT | FLASH FLOOD | 3 W Joshua Tree, CA | CHP REPORTED A WASHED OUT ROADWAY AT YUCCA MESA RD AND BARRON AVE. |
| Oct 13, 3:11 AM PDT | FLASH FLOOD | 1 Wsw Joshua Tree, CA | CHP REPORTS A VEHICLE STUCK IN THE MIDDLE OF THE ROADWAY WITH MULTIPLE PASSENGERS BETWEEN SUNBURST DR AND TORRES AVE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
San Diego, CA (KNKX), launched 00:00Z, 7.3 hours before the alert went out and 177 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
- 797 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
003
WGUS55 KVEF 130715
FFWVEF
CAC071-131015-
/O.NEW.KVEF.FF.W.0155.181013T0715Z-181013T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
1215 AM PDT SAT OCT 13 2018
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
South central San Bernardino County in southern California...
* Until 315 AM PDT.
* At 1213 AM PDT, local law enforcement officials reported heavy
rain and flash flooding along Highway 62 near Joshua Tree. Flash
flooding is already occurring....and an additional band of heavy
rainfall will move in during the next hour impacting Yucca Valley,
Morongo Basin, and Joshua Tree.
* Some locations that will experience flooding include...
Twentynine Palms, Yucca Valley, Twentynine Palms Base, Twentynine
Palms Airport, Joshua Tree Lake Campground, Joshua Tree, Morongo
Valley, Pioneertown and Johnson Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3410 11660 3414 11647 3426 11644 3432 11648
3436 11641 3444 11640 3444 11618 3418 11557
3408 11558 3407 11561 3403 11560 3403 11600
3407 11600 3408 11604 3412 11605 3412 11626
3408 11627 3408 11644 3403 11648 3403 11661
$$
Outler4 follow-up statements
751
WGUS75 KVEF 130752
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
1252 AM PDT SAT OCT 13 2018
CAC071-131015-
/O.CON.KVEF.FF.W.0155.000000T0000Z-181013T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
1252 AM PDT SAT OCT 13 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 AM PDT FOR
SOUTH CENTRAL SAN BERNARDINO COUNTY...
At 1249 AM PDT, Doppler radar and automated rain gauges indicated
that over an inch of heavy rain had fallen over the communities of
Hidden River, Sunfair, Joshua Tree, and nearby areas in the last
hour. Law enforcement has also reported multiple instances of flash
flooding across these areas. Additional heavy rainfall has been
noted on radar which could bring another 1-2 inches of rainfall.
Some locations that are experiencing flooding or will soon include...
Hidden Valley, Sunfair, Joshua Tree, Twentynine Palms, Yucca Valley,
Twentynine Palms Base, Twentynine Palms Airport, Joshua Tree Lake
Campground, Morongo Valley, Pioneertown and Johnson Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3410 11660 3414 11647 3426 11644 3432 11648
3436 11641 3444 11640 3444 11618 3418 11557
3408 11558 3407 11561 3403 11560 3403 11600
3407 11600 3408 11604 3412 11605 3412 11626
3408 11627 3408 11644 3403 11648 3403 11661
$$
TB3877
WGUS75 KVEF 130919
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
219 AM PDT SAT OCT 13 2018
CAC071-131015-
/O.CON.KVEF.FF.W.0155.000000T0000Z-181013T1015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
219 AM PDT SAT OCT 13 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 315 AM PDT FOR
SOUTH CENTRAL SAN BERNARDINO COUNTY...
At 216 AM PDT, local law enforcement continued to report ongoing
flash flooding in Joshua Tree and Yucca Valley. Doppler radar has
indicated that rainfall rates have decreased over the last hour but
moderate rain continues to fall which will likely persist impacts
over the next hour or so.
Some locations that will experience flooding include...
Twentynine Palms, Yucca Valley, Twentynine Palms Base, Twentynine
Palms Airport, Joshua Tree Lake Campground, Joshua Tree, Morongo
Valley, Pioneertown and Johnson Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3410 11660 3414 11647 3426 11644 3432 11648
3436 11641 3444 11640 3444 11618 3418 11557
3408 11558 3407 11561 3403 11560 3403 11600
3407 11600 3408 11604 3412 11605 3412 11626
3408 11627 3408 11644 3403 11648 3403 11661
$$
TB3058
WGUS55 KVEF 131003
FFWVEF
CAC071-131115-
/O.EXT.KVEF.FF.W.0155.000000T0000Z-181013T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
303 AM PDT SAT OCT 13 2018
The National Weather Service in Las Vegas has extended the
* Flash Flood Warning for...
South central San Bernardino County in southern California...
* Until 415 AM PDT.
* At 300 AM PDT, local law enforcement and trained spotters
continued to report flash flood impacts in Joshua Tree and Yucca
Valley. Highway 62 has been closed in Joshua Tree as well as
highway 10. Light to moderate rainfall continues in these areas.
* Some locations that will experience flooding include...
Twentynine Palms, Yucca Valley, Twentynine Palms Base, Twentynine
Palms Airport, Joshua Tree Lake Campground, Joshua Tree, Morongo
Valley, Pioneertown and Johnson Valley.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3410 11660 3414 11647 3426 11644 3432 11648
3436 11641 3444 11640 3444 11618 3418 11557
3408 11558 3407 11561 3403 11560 3403 11600
3407 11600 3408 11604 3412 11605 3412 11626
3408 11627 3408 11644 3403 11648 3403 11661
$$
TB3429
WGUS75 KVEF 131108
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
408 AM PDT SAT OCT 13 2018
CAC071-131115-
/O.EXP.KVEF.FF.W.0155.000000T0000Z-181013T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
San Bernardino CA-
408 AM PDT SAT OCT 13 2018
...THE FLASH FLOOD WARNING FOR SOUTH CENTRAL SAN BERNARDINO COUNTY
WILL EXPIRE AT 415 AM PDT...
Heavy rainfall rates in the warning area have subsided. While
rainfall is still expected across the warning area, rates should be
relatively light. Flooding is likely still ongoing in parts of
Joshua Tree, Yucca Valley, and surrounding areas but this should
improve over the next few hours. This warning will be replaced by an
areal flood advisory. Please continue to heed any remaining road
closures and Turn Around, Don't Drown.
LAT...LON 3410 11660 3414 11647 3426 11644 3432 11648
3436 11641 3444 11640 3444 11618 3418 11557
3408 11558 3407 11561 3403 11560 3403 11600
3407 11600 3408 11604 3412 11605 3412 11626
3408 11627 3408 11644 3403 11648 3403 11661
$$
TB3The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 1:10 AM PDT | Freeze Warning | VEF | 56 hr | |
| Oct 13, 1:27 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Oct 13, 2:37 AM PDT | Flash Flood Watch | VEF | San Bernardino | 12 hr |
| Oct 13, 2:52 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 5 hr |
| Oct 13, 4:13 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 6 hr |
| Oct 13, 4:26 AM PDT | Flash Flood Warning | VEF | San Bernardino | 5 hr |
| Oct 13, 5:46 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Oct 13, 6:00 AM PDT | Flash Flood Warning | VEF | San Bernardino | 3 hr |
| Oct 13, 8:14 AM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Oct 13, 2:40 PM PDT | Wind Advisory | VEF | San Bernardino | 53 hr |
Nearby
Flash Flood Warnings in California, 2018Every flash flood warning in 2018
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.