Alert archive / Nevada / Flash Flood Warnings in 2016
Flash Flood Warning 102, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 22, 2016, 6:57 PM PDT for Clark County, Nevada. It was in force for 4 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
- Aug 22, 2016, 6:57 PM PDT (01:57 UTC)
- Expired
- Aug 22, 2016, 11:19 PM PDT
- In force
- 4 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Clark County, NV
The radar
The Las Vegas radar (KESX), 99 km from the middle of the area, began a volume at 01:58 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 |
|---|---|---|---|
| Aug 22, 9:10 PM PDT | FLASH FLOOD | 7 Wnw Moapa, NV | WARM SPRINGS ROAD WAS CLOSED DUE TO FLOODING/DEBRIS OVER THE ROADWAY. |
| Aug 22, 9:47 PM PDT | FLASH FLOOD | 5 Wnw Moapa, NV | RANCH ROAD IN MOAPA WAS CLOSED DUE TO FLOODING/DEBRIS OVER THE ROADWAY. |
| Aug 22, 10:22 PM PDT | FLASH FLOOD | 6 W Valley Of Fire Stat, NV | VALLEY OF FIRE ROAD WAS CLOSED DUE TO FLOODING/DEBRIS OVER THE ROADWAY. |
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 00:00Z, 2.0 hours before the alert went out and 78 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
- 472 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 3384 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
984 WGUS55 KVEF 230157 FFWVEF NVC003-230500- /O.NEW.KVEF.FF.W.0102.160823T0157Z-160823T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 657 PM PDT MON AUG 22 2016 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEASTERN CLARK COUNTY IN SOUTHERN NEVADA... * UNTIL 1000 PM PDT * AT 656 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN OVER THE SHEEP RANGE WITH STORMS PUSHING EAST TOWARDS MOAPA AND VALLEY OF FIRE STATE PARK. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MOAPA TOWN...OVERTON...MOAPA VALLEY...SR 168 MILE MARKER 21... COYOTE SPRINGS...VALLEY OF FIRE...LOGANDALE AND GASS PK. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. && LAT...LON 3639 11438 3640 11518 3685 11518 3684 11438 $$ JS
3 follow-up statements
439 WGUS75 KVEF 230309 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 809 PM PDT MON AUG 22 2016 NVC003-230500- /O.CON.KVEF.FF.W.0102.000000T0000Z-160823T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV- 809 PM PDT MON AUG 22 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1000 PM PDT FOR NORTHEASTERN CLARK COUNTY... AT 806 PM PDT...TRAINED WEATHER SPOTTERS REPORTED THUNDERSTORMS PRODUCING FLASH FLOODING IN THE WARNED AREA. SIX TO EIGHT INCHES OF FLOWING WATER HAS BEEN REPORTED ON WARM SPRINGS ROAD IN MOAPA. ADDITIONAL HEAVY RAINFALL IS LIKELY FOR THE NEXT HOUR...WHICH WILL EXACERBATE ONGOING FLOODING. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MOAPA TOWN...OVERTON...MOAPA VALLEY...SR 168 MILE MARKER 21...COYOTE SPRINGS...VALLEY OF FIRE...LOGANDALE AND GASS PK. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 3639 11438 3640 11518 3685 11518 3684 11438 $$ CMS
176 WGUS55 KVEF 230456 FFWVEF NVC003-230800- /O.EXT.KVEF.FF.W.0102.000000T0000Z-160823T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 956 PM PDT MON AUG 22 2016 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS EXTENDED THE * FLASH FLOOD WARNING FOR... NORTHEASTERN CLARK COUNTY IN SOUTHERN NEVADA... * UNTIL 100 AM PDT * AT 952 PM PDT...WIDESPREAD 1 TO 3 INCH RAINFALL AMOUNTS HAVE OCCURRED ACROSS MUCH OF THE WARNED AREA AND FLASH FLOODING IS OCCURRING. THIS IS AN EXTENSION OF THE PREVIOUS WARNING. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MOAPA TOWN...OVERTON...MOAPA VALLEY...SR 168 MILE MARKER 21... COYOTE SPRINGS...VALLEY OF FIRE...LOGANDALE AND GASS PK. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3639 11438 3640 11518 3685 11518 3684 11438 $$ JS
833 WGUS75 KVEF 230619 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1119 PM PDT MON AUG 22 2016 NVC003-230626- /O.CAN.KVEF.FF.W.0102.000000T0000Z-160823T0800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV- 1119 PM PDT MON AUG 22 2016 ...THE FLASH FLOOD WARNING FOR NORTHEASTERN CLARK COUNTY IS CANCELLED... THE HEAVY RAIN HAS ENDED. FLASH FLOODING IS NO LONGER EXPECTED. HOWEVER...MINOR FLOODING CONTINUES IN MUCH OF NORTHEAST CLARK COUNTY. AN AREAL FLOOD ADVISORY HAS REPLACED THE FLASH FLOOD WARNING. LAT...LON 3639 11438 3640 11518 3685 11518 3684 11438 $$ CMS
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 6:03 PM PDT | Areal Flood Advisory | VEF | Lincoln | 3 hr |
| Aug 22, 6:20 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 22, 6:45 PM PDT | Flash Flood Warning | VEF | Lincoln | 3 hr |
| Aug 22, 7:09 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 36 min |
| Aug 22, 7:20 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 22, 7:37 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 19 min |
| Aug 22, 7:45 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 45 min |
| Aug 22, 8:19 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 41 min |
| Aug 22, 8:22 PM PDT | Flash Flood Warning | VEF | Clark, Lincoln | 3 hr |
| Aug 22, 8:31 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 22, 8:54 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 51 min |
| Aug 22, 9:42 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 33 min |
| Aug 22, 10:13 PM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 22, 11:16 PM PDT | Areal Flood Advisory | VEF | Clark | 119 min |
| Aug 23, 2:24 AM PDT | Areal Flood Warning | VEF | Clark | 24 hr |
| Aug 23, 3:07 PM PDT | Severe Thunderstorm Warning | VEF | Lincoln | 38 min |
| Aug 23, 4:40 PM PDT | Severe Thunderstorm Warning | VEF | Lincoln | 35 min |
| Aug 23, 4:56 PM PDT | Severe Thunderstorm Warning | VEF | Lincoln | 34 min |
Nearby
Flash Flood Warnings in Nevada, 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.