Alert archive / Arizona / Flash Flood Warnings in 2012

Flash Flood Warning 25, NWS Las Vegas, NV

July 14, 2012Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Jul 14, 2012, 3:27 PM MST for Mohave County, Arizona. It was in force for 5 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 14, 2012, 3:27 PM MST (22:27 UTC)
Expired: Jul 14, 2012, 8:00 PM MST
In force: 5 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), 94 km from the middle of the area, began a volume at 22:30 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.

What was reported inside it

Time	Report	Where	Remark
Jul 14, 5:43 PM MST	HEAVY RAIN 1.97	3 N Kingman, AZ	BULL MOUNTAIN ALERT MEASURED 1.97 INCHES OF RAIN IN ABOUT 3 HOURS.
Jul 14, 5:43 PM MST	HEAVY RAIN 3.11	5 Nnw Kingman (Cw1336), AZ	AN AUTOMATED GUAGE MEASURED 3.11 INCHES OF RAIN FROM IN ABOUT 3 HOURS.
Jul 14, 6:10 PM MST	HEAVY RAIN 1.29	7 Ene Chloride, AZ	VOCK CANYON ALERT MEASURED 1.29 INCHES OF RAIN IN 3 HOURS WITH A ONE HOUR TOTAL OF 1.18 INCHES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 12:00Z, 10.5 hours before the alert went out and 181 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 372 J/kg
Mixed-layer CIN: -151 J/kg
Mixed-layer LCL: 1206 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

941 
WGUS55 KVEF 142227
FFWVEF
AZC015-150030-
/O.NEW.KVEF.FF.W.0025.120714T2227Z-120715T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
327 PM MST SAT JUL 14 2012

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...

* UNTIL 530 PM MST.

* AT 317 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM 7 MILES NORTH OF NEW
  KINGMAN-BUTLER...OR 11 MILES NORTH OF KINGMAN. THE STORM PRODUCING
  VERY HEAVY RAIN WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY...HOWEVER RUNOFF MAY
  ENTER NEW KINGMAN-BUTLER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON 
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED 
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.

&&

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

6 follow-up statements

226 
WGUS75 KVEF 142328
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
428 PM MST SAT JUL 14 2012

AZC015-150030-
/O.CON.KVEF.FF.W.0025.000000T0000Z-120715T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
428 PM MST SAT JUL 14 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 PM MST FOR
CENTRAL MOHAVE COUNTY...

AT 418 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING VERY HEAVY RAIN.  THIS STORM WAS
LOCATED NEAR NEW KINGMAN-BUTLER...OR NEAR KINGMAN. THE THUNDERSTORM
WITH EXCESSIVE RAIN WAS NEARLY STATIONARY.

REMOTE RAIN GAGES ON TO THE WEST AND NORTHWEST OF NEW KINGMAN-BUTLER 
HAVE SHOWN THAT BETWEEN 0.50 INCHES AND 2.10 INCHES OF RAIN HAS 
FALLEN IN THE AREA BETWEEN 3 PM MST AND 420 PM MST. 

LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY...BUT RUNOFF MAY FLOW 
INTO THE NEW KINGMAN-BUTLER AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES...
AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS
NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR
WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.

&&

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

393 
WGUS55 KVEF 150023
FFWVEF
AZC015-150200-
/O.EXT.KVEF.FF.W.0025.000000T0000Z-120715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
523 PM MST SAT JUL 14 2012

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...

* UNTIL 700 PM MST.

* AT 514 PM MST...VERY HEAVY RAIN WAS REPORTED FROM A THUNDERSTORM
  NEAR NEW KINGMAN-BUTLER...OR NEAR KINGMAN. THE STORM PRODUCING VERY
  HEAVY RAIN WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY...HOWEVER NEW
  KINGMAN-BUTLER MAY SEE FLOWING WATER IN NORMALLY DRY WASHES AND
  ACROSS LOW WATER CROSSINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES...
AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS
NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR
WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.

&&

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

121 
WGUS75 KVEF 150119
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
619 PM MST SAT JUL 14 2012

AZC015-150200-
/O.CON.KVEF.FF.W.0025.000000T0000Z-120715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
619 PM MST SAT JUL 14 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM MST FOR
CENTRAL MOHAVE COUNTY...

AT 610 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING HEAVY RAIN.  THIS STORM WAS 
LOCATED 12 MILES NORTH OF NEW KINGMAN-BUTLER...OR 15 MILES NORTH OF 
KINGMAN. THE THUNDERSTORM WITH HEAVY RAIN WAS NEARLY STATIONARY.

LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY...HOWEVER NEW 
KINGMAN-BUTLER WILL CONTINUE TO BE IMPACTED.

LOCAL REPORTS THROUGHOUT THE AREA SHOWS THAT WATER IS RUNNING 
THROUGH NORMALLY DRY WASHES AND ACROSS LOW WATER CROSSINGS. IN 
ADDITION PONDING OF WATER CONTINUES TO TAKE PLACE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES...
AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS
NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR
WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.

&&

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

250 
WGUS55 KVEF 150153
FFWVEF
AZC015-150300-
/O.EXT.KVEF.FF.W.0025.000000T0000Z-120715T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
653 PM MST SAT JUL 14 2012

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  CENTRAL MOHAVE COUNTY IN NORTHWEST ARIZONA...

* UNTIL 800 PM MST.

* AT 645 PM MST...FLASH FLOODING WAS REPORTED FROM A THUNDERSTORM 12
  MILES NORTH OF NEW KINGMAN-BUTLER...OR 16 MILES NORTH OF KINGMAN.
  THE STORM PRODUCING FLASH FLOODING WAS NEARLY STATIONARY.

* LOCATIONS IMPACTED INCLUDE...
  MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY...BUT THE NEW
  KINGMAN-BUTLER AREA IS INCLUDE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.

&&

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

981 
WGUS75 KVEF 150230
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
730 PM MST SAT JUL 14 2012

AZC015-150300-
/O.CON.KVEF.FF.W.0025.000000T0000Z-120715T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
730 PM MST SAT JUL 14 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MST FOR
CENTRAL MOHAVE COUNTY...

AT 724 PM MST...A THUNDERSTORM PRODUCING LOCALLY HEAVY RAINFALL WAS 
WAS LOCATED 6 MILES NORTH OF NEW KINGMAN-BUTLER...OR 9 MILES NORTH 
OF KINGMAN. THE THUNDERSTORM WITH HEAVY RAIN WAS NEARLY STATIONARY.

LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF CENTRAL MOHAVE COUNTY...BUT INCLUDES NEW 
KINGMAN-BUTLER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FLASH FLOODING IS EXPECTED ON AREA ROADWAYS...AROUND UNDERPASSES...
AND IN NORMALLY DRY WASHES AND LOW LYING AREAS. FLASH FLOODING IS
NATURES NUMBER ONE KILLER. NEVER TRY TO CROSS A FLOODED ROADWAY OR
WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!

REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.

&&

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

192 
WGUS75 KVEF 150254
FFSVEF

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
754 PM MST SAT JUL 14 2012

AZC015-150300-
/O.EXP.KVEF.FF.W.0025.000000T0000Z-120715T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MOHAVE AZ-
754 PM MST SAT JUL 14 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM MST FOR CENTRAL
MOHAVE COUNTY...

THUNDERSTORMS HAVE MOVED OUT OF THE AREA AND ALTHOUGH RAIN SHOWERS 
WILL BE SEEN THROUGH THE EVENING...HEAVY RAINFALL PRODUCING 
ADDITIONAL FLASH FLOODING IS NO LONGER EXPECTED. THUS THE FLASH 
FLOOD WARNING WILL EXPIRE AS OF 8 PM MDT.

ALTHOUGH THE RAINS HAVE DECREASED...FLOWING WATER WILL LIKELY BE 
SEEN THROUGH THE NIGHT IN THE NORMALLY DRY WASHES AND ACROSS LOW 
WATER CROSSING. TRAVELERS ARE URGED TO USE CAUTION THROUGH THE NIGHT 
DUE TO THE WATER WHICH IS MOVING THROUGH THE AREA. 

LAT...LON 3555 11402 3565 11362 3547 11360 3536 11383
      3529 11394 3521 11410 3532 11417

$$

JENSEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 5:35 PM MST	Flash Flood Warning	VEF	Mohave	115 min
Jul 14, 1:28 PM MST	Flash Flood Warning	VEF	Mohave	4 hr
Jul 14, 2:00 PM MST	Areal Flood Advisory	VEF	Mohave	2 hr
Jul 14, 3:17 PM MST	Flash Flood Warning	VEF	Mohave	118 min
Jul 14, 4:03 PM MST	Areal Flood Advisory	VEF	Mohave	57 min
Jul 14, 4:38 PM MST	Flash Flood Warning	VEF	Mohave	3 hr
Jul 14, 4:42 PM MST	Flash Flood Warning	VEF	Mohave	3 hr

Nearby

Flash Flood Warnings in Arizona, 2012 Every flash flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.