Alert archive / Nevada / Flash Flood Warnings in 2015
Flash Flood Warning 101, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 13, 2015, 3:59 PM PDT for Clark County, Nye County, Nevada. It was in force for 3 hr. 1 report 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 13, 2015, 3:59 PM PDT (22:59 UTC)
- Expired
- Aug 13, 2015, 7:00 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clark County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 135 km from the middle of the area, began a volume at 23:03 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 13, 6:14 PM PDT | FLASH FLOOD | 7 W Indian Springs, NV | NDOT WAS CALLED TO REMOVE DEBRIS FROM HIGHWAY 95 BETWEEN MILE MARKERS 125 AND 127 DUE TO FLOODWATERS. |
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, 11.0 hours before the alert went out and 40 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
- 525 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 2274 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
087
WGUS55 KVEF 132259
FFWVEF
NVC003-023-140200-
/O.NEW.KVEF.FF.W.0101.150813T2259Z-150814T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
359 PM PDT THU AUG 13 2015
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHEASTERN NYE COUNTY IN SOUTH CENTRAL NEVADA...
NORTHWESTERN CLARK COUNTY IN SOUTHERN NEVADA...
* UNTIL 700 PM PDT
* AT 357 PM PDT...LOCAL LAW ENFORCEMENT REPORTED FLOODING ALONG THE
SIDES OF HIGHWAY 95 NEAR MILE MARKER 125. RUNOFF FROM HEAVIER RAIN
THAT FELL EARLIER WAS RUNNING TOWARD HIGHWAY 95 AND WILL CONTINUE.
IN ADDITION...ADDITIONAL THUNDERSTORMS NEAR MERCURY HAVE PRODUCED
HEAVY RAINFALL AND FLASH FLOODING ON THE SOUTHERN END OF THE
NEVADA NATIONAL SECURITY SITE IS EXPECTED AS WELL IN LOW LYING
AREAS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MERCURY
HIGHWAY 95 NEAR MILE MARKER 125
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 3672 11568 3651 11568 3653 11608 3672 11612
$$
STACHELSKI2 follow-up statements
325 WGUS75 KVEF 140006 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 506 PM PDT THU AUG 13 2015 NVC003-023-140200- /O.CON.KVEF.FF.W.0101.000000T0000Z-150814T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NYE NV-CLARK NV- 506 PM PDT THU AUG 13 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM PDT FOR SOUTHEASTERN NYE AND NORTHWESTERN CLARK COUNTIES... AT 504 PM PDT...HIGHWAY 95 WAS REPORTED FLOODED NEAR MILE MARKER 125. ALTHOUGH HEAVY RAINFALL HAS ENDED IN THIS AREA AS WELL AS NEAR MERCURY...RUNOFF FROM STORMS EARLIER TODAY IS STILL RESULTING IN FLASH FLOODING. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... HIGHWAY 95 NEAR MILE MARKER 125 MERCURY PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON ROADS...IN NORMALLY DRY WASHES AND LOW LYING AREAS. NEVER TRY TO CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. TURN AROUND...DONT DROWN! REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA FACEBOOK OR TWITTER. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3672 11568 3651 11568 3653 11608 3672 11612 $$ STACHELSKI
159 WGUS75 KVEF 140139 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 639 PM PDT THU AUG 13 2015 NVC003-023-140147- /O.CAN.KVEF.FF.W.0101.000000T0000Z-150814T0200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NYE NV-CLARK NV- 639 PM PDT THU AUG 13 2015 ...THE FLASH FLOOD WARNING FOR SOUTHEASTERN NYE AND NORTHWESTERN CLARK COUNTIES IS CANCELLED... THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. IN ADDITION...NEVADA HIGHWAY PATROL REPORTED THAT ANY DEBRIS ALONG HIGHWAY 95 BETWEEN MILE MARKERS 125 AND 127 HAS BEEN CLEARED BY THE NEVADA DEPARTMENT OF TRANSPORTATION. LAT...LON 3672 11568 3651 11568 3653 11608 3672 11612 $$ STACHELSKI
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 3:13 AM PDT | Excessive Heat Watch | VEF | Clark, Nye | 24 hr |
| Aug 13, 11:56 AM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 13, 2:03 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
| Aug 13, 3:14 PM PDT | Areal Flood Advisory | VEF | Clark | 2 hr |
| Aug 13, 3:16 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 44 min |
| Aug 13, 3:26 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 49 min |
| Aug 13, 3:51 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 39 min |
| Aug 13, 4:10 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 50 min |
| Aug 13, 4:18 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Flash Flood Warnings in Nevada, 2015Every flash flood warning in 2015
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.