Alert archive / Nevada / Flash Flood Warnings in 2016
Flash Flood Warning 103, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 22, 2016, 7:20 PM PDT for Clark County, Nevada. It was in force for 3 hr. 8 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, 7:20 PM PDT (02:20 UTC)
- Expired
- Aug 22, 2016, 10:15 PM PDT
- In force
- 3 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), 76 km from the middle of the area, began a volume at 02:20 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, 8:20 PM PDT | FLASH FLOOD | 2 Ne North Las Vegas, NV | MULTIPLE VEHICLES STUCK IN FLOOD WATER INTERSECTION OF LAS VEGAS BLVD AND CHEYENNE. TIME ESTIMATED FROM HEAVY RAIN REPORTS. |
| Aug 22, 8:30 PM PDT | FLASH FLOOD | 2 Sw Nellis Afb, NV | MULTIPLE SWIFT WATER RESCUES REPORTED IN THE NORTHEAST VALLEY ON MAJOR STREETS AS CRAIG, CAREY, WALNUT AND CHEYENNE. |
| Aug 22, 8:36 PM PDT | FLASH FLOOD | 3 N North Las Vegas, NV | PUBLIC REPORTED CRAIG BETWEEN I-15 AND LOOSE FLOODED. WATER OVER SIDEWALKS. |
| Aug 22, 9:00 PM PDT | FLASH FLOOD | 1 Wnw Nellis Afb, NV | NELLIS AFB MAIN GATE WAS CLOSED FROM FLOOD DEBRIS FOR OVER 12 HOURS. REPORT RELAYED VIA SOCIAL MEDIA. |
| Aug 22, 9:11 PM PDT | FLASH FLOOD | 3 W Nellis Afb, NV | PUBLIC OBSERVED SWIFT WATER RESCUE BY FIRE DEPARTMENT AT THE INTERSECTION OF CRAIG RD. AND LAMB BLVD. |
| Aug 22, 9:15 PM PDT | FLASH FLOOD | 2 E North Las Vegas, NV | WATER AT LEAST ONE FOOT DEEP REACHED CHURCH GROUNDS ON CORNER OF JUDSON AND WALNUT. TIME ESTIMATED FROM RADAR. |
| Aug 22, 9:25 PM PDT | FLASH FLOOD | 4 Nne Apex, NV | NEVADA HIGHWAY PATROL REPORTED DIRT AND DEBRIS AT EXIT 64 OF I-15. |
| Aug 22, 9:35 PM PDT | FLASH FLOOD | 4 Nnw Nellis Afb, NV | EASTBOUND I-215 WAS CLOSED BETWEEN RANGE ROAD AND LAMB BLVD DUE TO 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 00:00Z, 2.3 hours before the alert went out and 42 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.
462
WGUS55 KVEF 230220
FFWVEF
NVC003-230515-
/O.NEW.KVEF.FF.W.0103.160823T0220Z-160823T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
720 PM PDT MON AUG 22 2016
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA...
* UNTIL 1015 PM PDT
* AT 718 PM PDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. RAIN RATES IN EXCESS OF THREE
INCHES PER HOUR ARE OCCURRING WITH THESE STORMS. FLASH FLOODING IS
EXPECTED TO BEGIN SHORTLY.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LAS VEGAS...NORTH LAS VEGAS...LONE MOUNTAIN...NELLIS AFB...
SUMMERLIN...THE MOTOR SPEEDWAY...ALIANTE...EAST LAS VEGAS...
CENTENNIAL HILLS...NORTH LAS VEGAS AIRPORT...
FLOYD LAMB STATE PARK...GASS PK AND SUNRISE MTN.
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 3640 11475 3617 11503 3621 11534 3650 11531
3650 11517 3641 11517
$$
CMS2 follow-up statements
257
WGUS75 KVEF 230336
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
836 PM PDT MON AUG 22 2016
NVC003-230515-
/O.CON.KVEF.FF.W.0103.000000T0000Z-160823T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK NV-
836 PM PDT MON AUG 22 2016
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM PDT FOR
NORTH CENTRAL CLARK COUNTY...
AT 833 PM PDT...THE PUBLIC REPORTED FLASH FLOODING IN NORTH LAS
VEGAS AND NEAR NELLIS AIR FORCE BASE. GAUGES INDICATE ONE TO TWO
INCHES OF RAIN HAVE FALLEN IN MUCH OF THIS AREA IN THE PAST HOUR.
FLASH FLOODING IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF HOURS.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LAS VEGAS...NORTH LAS VEGAS...LONE MOUNTAIN...NELLIS AFB...
SUMMERLIN...THE MOTOR SPEEDWAY...ALIANTE...EAST LAS VEGAS...
CENTENNIAL HILLS...NORTH LAS VEGAS AIRPORT...FLOYD LAMB STATE PARK...
GASS PK AND SUNRISE MTN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
&&
LAT...LON 3640 11475 3617 11503 3621 11534 3650 11531
3650 11517 3641 11517
$$
CMS585
WGUS75 KVEF 230515
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1015 PM PDT MON AUG 22 2016
NVC003-230524-
/O.EXP.KVEF.FF.W.0103.000000T0000Z-160823T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK NV-
1015 PM PDT MON AUG 22 2016
...THE FLASH FLOOD WARNING FOR NORTH CENTRAL CLARK COUNTY WILL EXPIRE
AT 1015 PM PDT...
THE HEAVY RAIN HAS ENDED. FLASH FLOODING IS NO LONGER EXPECTED TO
OCCUR. HOWEVER...STREET FLOODING CONTINUES IN MUCH OF THE AREA. AN
URBAN AND SMALL STREAM FLOOD ADVISORY HAS REPLACED THE FLASH FLOOD
WARNING AND IS IN EFFECT UNTIL 115 AM PDT.
LAT...LON 3640 11475 3617 11503 3621 11534 3650 11531
3650 11517 3641 11517
$$
CMSThe 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, 6:57 PM PDT | Flash Flood Warning | VEF | Clark | 4 hr |
| Aug 22, 7:09 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 36 min |
| 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.