Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 37, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this flash flood warning at Sep 2, 2012, 2:34 PM MST for Yavapai County, Arizona. It was in force for 100 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 2, 2012, 2:34 PM MST (21:34 UTC)
- Expired
- Sep 2, 2012, 4:14 PM MST
- In force
- 100 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 107 km from the middle of the area, began a volume at 21:37 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 12:00Z, 9.6 hours before the alert went out and 99 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
- 560 J/kg
- Mixed-layer CIN
- -227 J/kg
- Mixed-layer LCL
- 2318 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
422
WGUS55 KFGZ 022134
FFWFGZ
AZC025-022330-
/O.NEW.KFGZ.FF.W.0037.120902T2134Z-120902T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
234 PM MST SUN SEP 2 2012
THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTH CENTRAL YAVAPAI COUNTY IN WEST CENTRAL ARIZONA...
* UNTIL 430 PM MST
* AT 225 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAINFALL REDEVELOPING OVER THE SOUTHERN PORTIONS OF THE
GLADIATOR BURN AREA...JUST NORTH OF CROWN KING. THESE AREAS HAVE
ALREADY SEEN AS MUCH AS TWO INCHES OF RAINFALL FROM EARLIER STORMS
TODAY...AND THIS NEXT STORM COULD DROP AS MUCH AS ONE AND ONE HALF
INCHES OF ADDITIONAL RAINFALL. THIS RAINFALL FALLING OVER ALREADY
SATURATED GROUND WILL CAUSE DANGEROUS FLASH FLOOD CONDITIONS. THIS
WARNING REPLACES THE PREVIOUS SMALL STREAM FLOOD ADVISORY FOR THE
SAME AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE HEAVY RAIN WILL 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 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...AND SENATOR
HIGHWAY.
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 3431 11238 3432 11227 3429 11219 3421 11225
3421 11240
$$1 follow-up statement
974
WGUS75 KFGZ 022314
FFSFGZ
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
414 PM MST SUN SEP 2 2012
AZC025-022321-
/O.CAN.KFGZ.FF.W.0037.000000T0000Z-120902T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
YAVAPAI AZ-
414 PM MST SUN SEP 2 2012
...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR SOUTH CENTRAL
YAVAPAI COUNTY...
RAINFALL HAS ENDED AND NO REPORTS OF FLOODING HAVE BEEN RECEIVED.
REAL TIME GAGE DATA REPORTS FROM THE AREA WERE MUCH LESS THAN
FLAGSTAFF RADAR ESTIMATED RAINFALL...AND THE RISK FOR FLOODING
WILL RAPIDLY DECREASE FOR THE REMAINDER OF THE AFTERNOON.
LAT...LON 3431 11238 3432 11227 3429 11219 3421 11225
3421 11240
$$The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 2, 12:16 PM MST | Areal Flood Advisory | FGZ | Coconino | 119 min |
| Sep 2, 12:26 PM MST | Areal Flood Advisory | FGZ | Yavapai | 3 hr |
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.