Alert archive / Arizona / Flash Flood Warnings in 2015
Flash Flood Warning 69, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 20, 2015, 6:01 AM 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 20, 2015, 6:01 AM MST (13:01 UTC)
- Expired
- Jul 20, 2015, 9:00 AM 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), 99 km from the middle of the area, began a volume at 13:04 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 12:00Z, 1.0 hours before the alert went out and 170 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
- 5 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 1754 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
036
WGUS55 KVEF 201301
FFWVEF
AZC015-201600-
/O.NEW.KVEF.FF.W.0069.150720T1301Z-150720T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
601 AM MST MON JUL 20 2015
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL MOHAVE COUNTY IN NORTHWESTERN ARIZONA...
* UNTIL 900 AM MST
* AT 558 AM MST...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
HEAVY RAIN OVER MAINLY RURAL AREAS OF MOHAVE COUNTY . THE RAIN IS
MOVING NORTHEAST AT 25 MPH. FLASH FLOODING IS EXPECTED TO BEGIN
SHORTLY.
* LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
INDIAN ROUTE 1 (BUCK AND DOE ROAD)...
AND THE INTERSECTION OF DIAMOND BAR ROAD AND BUCK AND DOE ROAD.
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 3599 11384 3560 11347 3547 11379 3583 11405
$$
STEELE2 follow-up statements
439 WGUS75 KVEF 201431 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 731 AM MST MON JUL 20 2015 AZC015-201600- /O.CON.KVEF.FF.W.0069.000000T0000Z-150720T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 731 AM MST MON JUL 20 2015 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 900 AM MST FOR CENTRAL MOHAVE COUNTY... AT 728 AM MST...DOPPLER RADAR INDICATED HEAVY RAIN ACROSS THE WARNED AREA. UP TO ONE INCH OF RAIN HAS ALREADY FALLEN. FLASH FLOODING IS LIKELY ALREADY OCCURRING. FLASH FLOODING WILL REMAIN OVER MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY ALONG INDIAN ROUTE 1 (BUCK AND DOE ROAD) AND THE INTERSECTION OF DIAMOND BAR ROAD AND BUCK AND DOE ROAD. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLASH FLOODING IS EXPECTED ON ROADS...IN NORMALLY DRY WASHES AND LOW LYING AREAS. ALTHOUGH THE HEAVY THUNDERSTORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA...ADDITIONAL SHOWERS AND THUNDERSTORMS CONTINUE TO DEVELOP UP WIND AND WILL CONTINUE TO MOVE OVER AREAS ALREADY IMPACTED BY HEAVY RAIN. NEVER TRY TO CROSS A FLOODED ROAD OR ENTER A FLOOD CHANNEL. REPORT FLOODING TO THE LAS VEGAS NATIONAL WEATHER SERVICE VIA FACEBOOK OR TWITTER. TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. && LAT...LON 3599 11384 3560 11347 3547 11379 3583 11405 $$ STEELE
699 WGUS75 KVEF 201552 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 852 AM MST MON JUL 20 2015 AZC015-201602- /O.EXP.KVEF.FF.W.0069.000000T0000Z-150720T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ MOHAVE AZ- 852 AM MST MON JUL 20 2015 ...THE FLASH FLOOD WARNING FOR CENTRAL MOHAVE COUNTY WILL EXPIRE AT 900 AM MST... THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE A THREAT...HOWEVER...ADDITIONAL SHOWERS ARE POSSIBLE IN THE NEXT ONE TO TWO HOURS. LAT...LON 3599 11384 3560 11347 3547 11379 3583 11405 $$ STEELE
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 1:46 AM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
| Jul 20, 4:58 AM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.