Alert archive / Arizona / Flash Flood Warnings in 2007
Flash Flood Warning 41, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 30, 2007, 1:40 PM MST for Mohave County, Arizona. It took effect at Aug 30, 2007, 1:45 PM MST. It was in force for 2 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 30, 2007, 1:40 PM MST (20:40 UTC)
- In effect from
- Aug 30, 2007, 1:45 PM MST
- Expired
- Aug 30, 2007, 3:45 PM MST
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
County Mohave County, AZ
The radar
The Las Vegas radar (KESX), 102 km from the middle of the area, began a volume at 20:43 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 12:00Z, 8.7 hours before the alert went out and 185 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
- 117 J/kg
- Mixed-layer CIN
- -105 J/kg
- Mixed-layer LCL
- 2155 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KVEF 302045 FFWVEF AZC015-302245- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 140 PM MST THU AUG 30 2007 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA... * UNTIL 345 PM MST. * AT 132 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. * LOCATIONS IMPACTED INCLUDE...HUALAPAI PEAK. AT 140 PM RAIN GAGES INDICATE OVER A HALF AN INCH OF RAIN IN LESS THAN 10 MINUTES IN THE HUALAPAI RANGE HAS FALLEN...WITH OVER AN INCH TOTAL SO FAR THIS AFTERNOON. THE MOSS WASH IS THE MOST THREATENED AREA FOR THE HEAVY RUN OFF. HIKERS AND OTHERS IN AND NEAR THE HUALAPAI MOUNTAINS SHOULD LEAVE LOW LYING AREAS AND SEEK HIGHER GROUND. LAT...LON 3500 11411 3477 11386 3514 11337 3536 11395 $$ JJ
1 follow-up statement
000 WGUS75 KVEF 302152 FFSVEF FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 245 PM PDT THU AUG 30 2007 AZC015-302245- MOHAVE AZ- 245 PM MST THU AUG 30 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM MST FOR CENTRAL MOHAVE COUNTY... LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HUALAPAI PEAK THE THUNDERSTORM THAT PRODUCED THE HEAVY RAIN FALL HAS NEARLY DISSIPATED AT 245 PM. SEVERAL AUTOMATED RAIN GAGES REPORTED VERY HEAVY RAINFALL IN A SHORT PERIOD OF TIME. IN THE MOSS WASH AN AUTOMATED GAGE REPORTED ONE AND A HALF INCHES OF RAIN IN AN HOUR ENDING AT 208 PM. ANOTHER GAGE REPORTED .82 INCHES OF RAIN IN 50 MINUTES ENDING AT 220 PM AND 1.61 INCHES OF RAIN SINCE 1140 AM. RUN OFF IS EXPECTED TO CONTINUE TO PRODUCE FLOODING CONDITIONS ON AND NEAR THE HUALAPAI MOUNTAINS UNTIL 345 PM THIS AFTERNOON. IN DESERT TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. SEVERAL INCHES OF SWIFTLY FLOWING WATER CAN CARRY VEHICLES AWAY. LAT...LON 3500 11411 3477 11386 3514 11337 3536 11395 $$ JJ
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 3:39 PM MST | Flash Flood Warning | VEF | Mohave | 2 hr |
| Aug 30, 3:55 PM MST | Flash Flood Warning | VEF | Mohave | 3 hr |
Nearby
Flash Flood Warnings in Arizona, 2007Every flash flood warning in 2007
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.