Alert archive / Nevada / Flash Flood Warnings in 2012
Flash Flood Warning 5, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 13, 2012, 3:38 PM PDT for Clark County, Nevada. It was in force for 112 min. 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
- Jul 13, 2012, 3:38 PM PDT (22:38 UTC)
- Expired
- Jul 13, 2012, 5:30 PM PDT
- In force
- 112 min
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Clark County, NV
The radar
The Las Vegas radar (KESX), 39 km from the middle of the area, began a volume at 22:38 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 13, 4:32 PM PDT | HEAVY RAIN 2.17 | 9 Se Jean, NV | A TOTAL OF 2.17 INCHES OF RAIN FELL IN 90 MINUTES AT AN AUTOMATED GAUGE NEAR JEAN. |
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, 10.6 hours before the alert went out and 68 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2268 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
262 WGUS55 KVEF 132238 FFWVEF NVC003-140030- /O.NEW.KVEF.FF.W.0005.120713T2238Z-120714T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 338 PM PDT FRI JUL 13 2012 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTH CENTRAL CLARK COUNTY IN SOUTHERN NEVADA... * UNTIL 530 PM PDT. * AT 334 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN FROM A THUNDERSTORM OVER JEAN...GOODSPRINGS AND PRIMM. THE STORM WAS MOVING NORTHEAST AT 5 MPH. * LOCATIONS IMPACTED INCLUDE... JEAN...GOODSPRINGS...PRIMM. THIS INCLUDES INTERSTATE 15 BETWEEN MILE MARKERS 1 AND 23. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES... AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3594 11535 3586 11508 3550 11525 3572 11553 $$ JA
2 follow-up statements
325 WGUS75 KVEF 132308 RRA FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 408 PM PDT FRI JUL 13 2012 NVC003-140030- /O.CON.KVEF.FF.W.0005.000000T0000Z-120714T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV- 408 PM PDT FRI JUL 13 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM PDT FOR SOUTH CENTRAL CLARK COUNTY... AT 404 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN. THIS STORM WAS LOCATED BETWEEN JEAN AND SLONE...MOVING NORTHEAST AT 10 MPH. DOPPLER RADAR ESTIMATED OVER 2 INCHES OF RAINFALL FROM THIS STORM WHICH WAS CONFIRMED BY RAIN GAGES NEAR JEAN. THIS STORM WAS MOVING TOWARD THE SOUTHERN END OF THE LAS VEGAS VALLEY. LOCATIONS IMPACTED INCLUDE... JEAN...GOODSPRINGS AND PRIMM. THIS INCLUDES INTERSTATE 15 BETWEEN MILE MARKERS 1 AND 23. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES... AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN! REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG... NWSVEGAS. && LAT...LON 3594 11535 3586 11508 3550 11525 3572 11553 $$ JA
504 WGUS75 KVEF 140036 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 536 PM PDT FRI JUL 13 2012 NVC003-140045- /O.EXP.KVEF.FF.W.0005.000000T0000Z-120714T0030Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK NV- 536 PM PDT FRI JUL 13 2012 ...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL CLARK COUNTY... THE THREAT OF FLASH FLOODING HAS ENDED FROM EARLIER HEAVY RAINFALL AROUND THE AREA FROM JEAN TO GOODSPRINGS TO PRIMM. LAT...LON 3594 11535 3586 11508 3550 11525 3572 11553 $$ JA
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 7:14 PM PDT | Flash Flood Warning | VEF | Lincoln | 104 min |
| Jul 13, 4:24 PM PDT | Flash Flood Warning | VEF | Clark | 41 min |
Nearby
Flash Flood Warnings in Nevada, 2012Every flash flood warning in 2012
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.