Alert archive / Arizona / Flash Flood Warnings in 2018
Flash Flood Warning 85, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 27, 2018, 5:29 PM MST for Mohave County, Arizona. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 2018, 5:29 PM MST (00:29 UTC)
- Expired
- Jul 27, 2018, 8:30 PM MST
- In force
- 3 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), 137 km from the middle of the area, began a volume at 00:29 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
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.5 hours before the alert went out and 148 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
- 232 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 1828 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 148 m²/s²
- 0-3 km storm-relative helicity
- 259 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
931
WGUS55 KVEF 280029
FFWVEF
AZC015-280330-
/O.NEW.KVEF.FF.W.0085.180728T0029Z-180728T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Las Vegas NV
529 PM MST FRI JUL 27 2018
The National Weather Service in Las Vegas has issued a
* Flash Flood Warning for...
Southeastern Mohave County in northwestern Arizona...
* Until 830 PM MST.
* At 527 PM MST, radar indicated thunderstorms producing heavy rain
across the warned area. Flash flooding is expected to begin
shortly. Rain gauges along Route 66 received nearly one inch of
rain in 30 minutes.
* Some locations that will experience flooding include...
Peach Springs and along Route 66 to the east of Peach Springs
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3533 11351 3559 11351 3559 11334 3556 11333
3535 11333 3530 11334
$$
SC2 follow-up statements
338
WGUS75 KVEF 280211
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
711 PM MST FRI JUL 27 2018
AZC015-280330-
/O.CON.KVEF.FF.W.0085.000000T0000Z-180728T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-
711 PM MST FRI JUL 27 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MST FOR
SOUTHEASTERN MOHAVE COUNTY...
At 658 PM MST, Doppler radar indicated thunderstorms have ended
across the warned area. However, the threat of flash flooding from
the earlier heavy rain continues.
Some locations that will experience flooding include...
Route 66 east of Peach Springs and Nelson Road.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, country roads, farmland, and other low lying
spots.
&&
LAT...LON 3533 11351 3559 11351 3559 11334 3556 11333
3535 11333 3530 11334
$$
SC099
WGUS75 KVEF 280323
FFSVEF
Flash Flood Statement
National Weather Service Las Vegas NV
823 PM MST FRI JUL 27 2018
AZC015-280331-
/O.EXP.KVEF.FF.W.0085.000000T0000Z-180728T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mohave AZ-
823 PM MST FRI JUL 27 2018
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN MOHAVE COUNTY WILL EXPIRE
AT 830 PM MST...
Any flooding that occurred should have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.
LAT...LON 3533 11351 3559 11351 3559 11334 3556 11333
3535 11333 3530 11334
$$
SCThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 5:10 PM MST | Dust Storm Warning | VEF | Mohave | 95 min |
Nearby
Flash Flood Warnings in Arizona, 2018Every flash flood warning in 2018
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.