Alert archive / Nevada / Flash Flood Watches in 2013
Flash Flood Watch 7, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood watch at Aug 30, 2013, 2:36 AM PDT for Clark County, Lincoln County, Nye County, Nevada; Inyo County, San Bernardino County, California; Mohave County, Arizona. It took effect at Aug 30, 2013, 11:00 AM PDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Aug 30, 2013, 2:36 AM PDT (09:36 UTC)
- In effect from
- Aug 30, 2013, 11:00 AM PDT
- Expired
- Aug 30, 2013, 8:08 PM PDT
- In force
- 9 hr
- Issued by
- NWS Las Vegas, NV
- Flood severity
- None
Counties Mohave County, AZ, Inyo County, CA, San Bernardino County, CA, Clark County, NV, Lincoln County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 110 km from the middle of the area, began a volume at 09:37 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.
The nearest sounding before it
Las Vegas, NV (KVEF), launched 00:00Z, 9.6 hours before the alert went out and 15 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
- 148 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 2598 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Las Vegas, NV wrote its last area forecast discussion before this flash flood watch went out at Aug 30, 2:25 AM PDT, 11 minutes earlier.
Area forecast discussion, Aug 30, 2:25 AM PDT, 11 minutes before
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Local storm report, Aug 29, 8:51 PM PDT, 5 hours 45 minutes before
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</html>Local storm report, Aug 29, 9:58 PM PDT, 4 hours 38 minutes before
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</html>The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 7:43 AM PDT | Areal Flood Advisory | VEF | Clark | 3 hr |
| Aug 30, 9:59 AM PDT | Areal Flood Advisory | VEF | Clark | 2 hr |
| Aug 30, 12:43 PM PDT | Areal Flood Advisory | VEF | Nye | 3 hr |
| Aug 30, 1:38 PM PDT | Flash Flood Warning | VEF | Lincoln | 112 min |
| Aug 30, 1:54 PM PDT | Areal Flood Advisory | VEF | Nye | 3 hr |
| Aug 30, 1:57 PM PDT | Flash Flood Warning | VEF | Clark | 2 hr |
| Aug 30, 2:44 PM PDT | Areal Flood Advisory | VEF | Clark, Nye | 91 min |
| Aug 30, 3:01 PM PDT | Flash Flood Warning | VEF | Lincoln | 119 min |
| Aug 30, 3:55 PM PDT | Flash Flood Watch | VEF | Clark, Esmeralda, Lincoln, Nye | 54 hr |
| Aug 30, 4:36 PM PDT | Flash Flood Warning | VEF | Clark | 84 min |
| Aug 29, 7:39 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 36 min |
| Aug 29, 8:10 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 30, 12:23 PM PDT | Flash Flood Warning | VEF | San Bernardino | 112 min |
| Aug 30, 12:55 PM PDT | Flash Flood Warning | VEF | Inyo | 4 hr |
| Aug 30, 1:27 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 3 hr |
| Aug 30, 1:40 PM PDT | Flash Flood Warning | VEF | San Bernardino | 2 hr |
| Aug 30, 2:15 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Aug 30, 2:22 PM PDT | Flash Flood Warning | VEF | San Bernardino | 113 min |
| Aug 30, 2:52 PM PDT | Areal Flood Advisory | VEF | Inyo, San Bernardino | 3 hr |
| Aug 30, 3:53 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 82 min |
| Aug 30, 4:32 PM PDT | Flash Flood Warning | VEF | Inyo | 118 min |
| Aug 30, 4:52 PM PDT | Areal Flood Advisory | VEF | Inyo | 83 min |
| Aug 29, 5:17 PM PDT | Flash Flood Warning | VEF | Mohave | 118 min |
| Aug 29, 5:39 PM PDT | Areal Flood Advisory | VEF | Mohave | 111 min |
| Aug 29, 5:49 PM PDT | Flash Flood Warning | VEF | Mohave | 116 min |
| Aug 29, 7:08 PM PDT | Flash Flood Warning | VEF | Mohave | 112 min |
| Aug 29, 7:18 PM PDT | Flash Flood Warning | VEF | Mohave | 117 min |
| Aug 30, 10:52 AM PDT | Flash Flood Warning | VEF | Mohave | 83 min |
| Aug 30, 11:27 AM PDT | Flash Flood Warning | VEF | Mohave | 2 hr |
| Aug 30, 12:16 PM PDT | Flash Flood Warning | VEF | Mohave | 119 min |
| Aug 30, 4:11 PM PDT | Areal Flood Advisory | VEF | Mohave | 2 hr |
| Aug 30, 4:48 PM PDT | Flash Flood Warning | VEF | Mohave | 117 min |
Nearby
Flash Flood Watches in Nevada, 2013Flash Flood Watches in California, 2013Flash Flood Watches in Arizona, 2013Every flash flood watch in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.