Alert archive / Arizona / Areal Flood Warnings in 2016

Areal Flood Warning 8, NWS Las Vegas, NV

August 22, 2016Mohave County, Arizona

NWS Las Vegas, NV issued this areal flood warning at Aug 22, 2016, 11:00 PM MST for Mohave County, Arizona. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 22, 2016, 11:00 PM MST (06:00 UTC)
Expired
Aug 23, 2016, 11:00 PM MST
In force
24 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Flood severity
None

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 102 km from the middle of the area, began a volume at 06:01 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, 6.0 hours before the alert went out and 177 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.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 00:00Z on 2016-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 472 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 00:00Z on 2016-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Aug 22, 10:35 PM MST, 25 minutes earlier.

Area forecast discussion, Aug 22, 10:35 PM MST, 25 minutes before
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In the hours before

Local storm report, Aug 22, 8:39 PM MST, 2 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
839 PM PDT MON AUG 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0836 PM     FLASH FLOOD      3 N NORTH LAS VEGAS     36.24N 115.12W
08/22/2016                   CLARK              NV   PUBLIC

            PUBLIC REPORTED CRAIG BETWEEN I-15 AND LOOSE
            FLOODED. WATER OVER SIDEWALKS.

&&

BP
Local storm report, Aug 22, 8:46 PM MST, 2 hours 14 minutes before
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Local storm report, Aug 22, 9:17 PM MST, 1 hour 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
917 PM PDT MON AUG 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0911 PM     FLASH FLOOD      3 W NELLIS AFB          36.24N 115.08W
08/22/2016                   CLARK              NV   PUBLIC

            PUBLIC OBSERVED SWIFT WATER RESCUE BY FIRE
            DEPARTMENT AT THE INTERSECTION OF CRAIG RD.
            AND LAMB BLVD.

&&

BP
Local storm report, Aug 22, 9:23 PM MST, 1 hour 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
923 PM PDT MON AUG 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     TSTM WND GST     2 NW HOOVER DAM         36.04N 114.76W
08/22/2016  M61 MPH          CLARK              NV   MESONET

            BOULDER ISLAND WEATHER STATION MEASURED A
            PEAK WIND OF 61 MPH. .

&&

BP
Local storm report, Aug 22, 9:36 PM MST, 1 hour 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
936 PM PDT MON AUG 22 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0925 PM     FLASH FLOOD      4 NNE APEX              36.38N 114.89W
08/22/2016                   CLARK              NV   LAW ENFORCEMENT

            NEVADA HIGHWAY PATROL REPORTED DIRT AND
            DEBRIS AT EXIT 64 OF I-15.

&&

BP
Local storm report, Aug 22, 10:57 PM MST, 3 minutes before
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The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 22, 6:03 PM MSTAreal Flood AdvisoryVEFLincoln3 hr
Aug 22, 6:20 PM MSTFlash Flood WarningVEFClark3 hr
Aug 22, 6:45 PM MSTFlash Flood WarningVEFLincoln3 hr
Aug 22, 6:57 PM MSTFlash Flood WarningVEFClark4 hr
Aug 22, 7:09 PM MSTSevere Thunderstorm WarningVEFClark36 min
Aug 22, 7:20 PM MSTFlash Flood WarningVEFClark3 hr
Aug 22, 7:37 PM MSTSevere Thunderstorm WarningVEFClark19 min
Aug 22, 7:45 PM MSTSevere Thunderstorm WarningVEFClark45 min
Aug 22, 8:19 PM MSTSevere Thunderstorm WarningVEFClark41 min
Aug 22, 8:22 PM MSTFlash Flood WarningVEFClark, Lincoln3 hr
Aug 22, 8:31 PM MSTFlash Flood WarningVEFClark3 hr
Aug 22, 8:54 PM MSTSevere Thunderstorm WarningVEFClark51 min
Aug 22, 9:42 PM MSTSevere Thunderstorm WarningVEFClark33 min
Aug 22, 10:13 PM MSTAreal Flood AdvisoryVEFClark3 hr
Aug 22, 11:16 PM MSTAreal Flood AdvisoryVEFClark119 min
Aug 23, 2:24 AM MSTAreal Flood WarningVEFClark24 hr
Aug 23, 3:07 PM MSTSevere Thunderstorm WarningVEFLincoln38 min
Aug 23, 4:40 PM MSTSevere Thunderstorm WarningVEFLincoln35 min
Aug 23, 4:56 PM MSTSevere Thunderstorm WarningVEFLincoln34 min
Aug 22, 5:45 PM MSTFlash Flood WarningVEFSan Bernardino3 hr
Aug 22, 8:46 PM MSTFlash Flood WarningVEFSan Bernardino3 hr
Aug 22, 9:44 PM MSTAreal Flood AdvisoryVEFSan Bernardino3 hr
Aug 22, 5:03 PM MSTFlash Flood WarningVEFMohave6 hr
Aug 22, 9:58 PM MSTFlash Flood WarningVEFMohave3 hr
Aug 22, 10:58 PM MSTAreal Flood AdvisoryVEFMohave3 hr

Nearby

Areal Flood Warnings in Arizona, 2016Every areal 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.