Alert archive / Arizona / Flash Flood Warnings in 2012

Flash Flood Warning 8, NWS Flagstaff, AZ

July 24, 2012Yavapai County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Jul 24, 2012, 5:29 PM MST for Yavapai 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 24, 2012, 5:29 PM MST (00:29 UTC)
Expired
Jul 24, 2012, 8:30 PM MST
In force
3 hr
Issued by
NWS Flagstaff, AZ
Area
Storm-based polygon
Flood severity
None

County Yavapai County, AZ

The radar

The Flagstaff radar (KFSX), 108 km from the middle of the area, began a volume at 00:30 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.

The nearest sounding before it

Phoenix, AZ (KPSR), launched 00:00Z, 0.5 hours before the alert went out and 100 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, Phoenix, AZ at 00:00Z on 2012-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 244 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phoenix, AZ at 00:00Z on 2012-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
244 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
2283 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
127 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.

224 
WGUS55 KFGZ 250029
FFWFGZ
AZC025-250330-
/O.NEW.KFGZ.FF.W.0008.120725T0029Z-120725T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
529 PM MST TUE JUL 24 2012

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL YAVAPAI COUNTY IN WEST CENTRAL ARIZONA...

* UNTIL 830 PM MST

* AT 526 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING PRODUCING THUNDERSTORMS OVER SOUTH CENTRAL          
  YAVAPAI COUNTY...AFFECTING THE GLADIATOR BURN AREA...MOVING        
  SOUTHEAST AT 5 MPH.

* THESE HEAVY RAIN PRODUCING THUNDERSTORMS WILL RESULT IN FLASH 
FLOODING OVER THE GLADIATOR BURN AREA...PRIMARILY NORTH OF THE CROWN 
KING COMMUNITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
TURKEY CREEK...POLAND CREEK...TOWERS CREEK...CRAZY BASIN CREEK...WOLF
CREEK...BEAR CREEK...TUSCUMBIA CREEK...PINE CREEK...ARRASTRA CREEK
AND MINNEHAHA CREEK.

THE HEAVY RAIN WILL LIKELY TRIGGER LIFE-THREATENING FLASH FLOODS...AS
WELL AS MUDSLIDES...ROCKSLIDES...AND DEBRIS FLOWS WITHIN AND
DOWNSTREAM OF THE GLADIATOR FIRE BURN AREA. ROADWAYS IN THE AREA WILL
LIKELY BE INUNDATED AND WASHED OUT. STREAMS IN THE AREA WILL FLOW FAR
ABOVE TYPICAL LEVELS AND WILL CARRY HEAVY AMOUNTS OF SEDIMENT.

AREAS IMPACTED BY THIS WARNING INCLUDE THE GLADIATOR FIRE BURN
AREA...THE COMMUNITY OF CROWN KING...CROWN KING ROAD...SENATOR
HIGHWAY...AND POTENTIALLY SECTIONS OF WAGONER ROAD.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 3433 11232 3430 11224 3425 11228 3420 11230
      3424 11239 3433 11238

$$

MCS
2 follow-up statements
522 
WGUS75 KFGZ 250159
FFSFGZ

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
659 PM MST TUE JUL 24 2012

AZC025-250330-
/O.CON.KFGZ.FF.W.0008.000000T0000Z-120725T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
YAVAPAI AZ-
659 PM MST TUE JUL 24 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM MST FOR SOUTH
CENTRAL YAVAPAI COUNTY...

AT 650 PM MST...RAIN GAGES OVER THE GLADIATOR BURN AREA SHOWED ONE 
HALF TO OVER ONE INCH OF RAIN HAS FALLEN. AREAS ALONG AND DOWNSTREAM 
OF EASTERN PORTIONS OF THE BURN AREA ARE EXPECTED TO SEE THE 
GREATEST IMPACT FROM THE RUNOFF. THIS INCLUDES THE PECK CANYON AREA 
AND PECK MINE ROAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
TURKEY CREEK...POLAND CREEK...TOWERS CREEK...CRAZY BASIN CREEK...WOLF
CREEK...BEAR CREEK...TUSCUMBIA CREEK...ARRASTRA CREEK AND MINNEHAHA
CREEK.

THE HEAVY RAIN WILL LIKELY TRIGGER LIFE-THREATENING FLASH FLOODS...AS
WELL AS MUDSLIDES...ROCKSLIDES...AND DEBRIS FLOWS WITHIN AND
DOWNSTREAM OF THE GLADIATOR FIRE BURN AREA. ROADWAYS IN THE AREA WILL
LIKELY BE INUNDATED AND WASHED OUT. STREAMS IN THE AREA WILL FLOW FAR
ABOVE TYPICAL LEVELS AND WILL CARRY HEAVY AMOUNTS OF SEDIMENT.

AREAS IMPACTED BY THIS WARNING INCLUDE THE GLADIATOR FIRE BURN
AREA...THE COMMUNITY OF CROWN KING...CROWN KING ROAD...SENATOR
HIGHWAY...AND POTENTIALLY SECTIONS OF WAGONER ROAD.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 3433 11232 3430 11224 3425 11228 3420 11230
      3424 11239 3433 11238

$$

MCS
385 
WGUS75 KFGZ 250326
FFSFGZ

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
826 PM MST TUE JUL 24 2012

AZC025-250333-
/O.EXP.KFGZ.FF.W.0008.000000T0000Z-120725T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
YAVAPAI AZ-
826 PM MST TUE JUL 24 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 830 PM MST FOR SOUTH
CENTRAL YAVAPAI COUNTY...

HEAVY RAIN ENDED OVER THE GLADIATOR BURN AREA AROUND 630 PM MST. 
STORM RUNOFF WILL CONTINUE TO DECREASE THIS EVENING...AND THE RISK 
OF FLOODING HAS DIMINISHED. 

LAT...LON 3433 11232 3430 11224 3425 11228 3420 11230
      3424 11239 3433 11238

$$
JJ

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 25, 12:52 PM MSTSpecial Weather StatementFGZ23 min

Nearby

Flash Flood Warnings in Arizona, 2012Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.