Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 10, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Jul 13, 2012, 6:54 PM MST for La Paz County, Yuma County, Arizona; Imperial County, California. It was in force for 111 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
- Jul 13, 2012, 6:54 PM MST (01:54 UTC)
- Expired
- Jul 13, 2012, 8:45 PM MST
- In force
- 111 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Flood severity
- None
Counties La Paz County, AZ, Yuma County, AZ, Imperial County, CA
The radar
The Yuma radar (KYUX), 41 km from the middle of the area, began a volume at 01:56 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
San Diego, CA (KNKX), launched 00:00Z, 1.9 hours before the alert went out and 232 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1903 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
100
WGUS55 KPSR 140154
FFWPSR
AZC012-027-CAC025-140345-
/O.NEW.KPSR.FF.W.0010.120714T0154Z-120714T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
654 PM PDT FRI JUL 13 2012
THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN IMPERIAL COUNTY IN SOUTHEAST CALIFORNIA...
THIS INCLUDES MARTINEZ LAKE...
WEST CENTRAL YUMA COUNTY IN SOUTHWEST ARIZONA...
THIS INCLUDES YUMA...
SOUTHWESTERN LA PAZ COUNTY IN WEST CENTRAL ARIZONA...
* UNTIL 845 PM PDT/845 PM MST/
* AT 651 PM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
THUNDERSTORMS WITH VERY HEAVY RAIN FROM JUST NORTH OF YUMA...TO
NEAR CIBOLA. RADAR INDICATED UP TO 1 INCH OF RAIN HAS FALLEN SINCE
600 PM.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO YUMA
PROVING GROUND AND CIBOLA
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR
VEHICLE INTO AREAS WHERE RUNNING WATER COVERS THE ROADWAY. JUST ONE
FOOT OF FLOWING WATER CAN BE POWERFUL ENOUGH TO SWEEP VEHICLES OFF
THE ROAD. MAKE THE SMART CHOICE TURN AROUND DONT DROWN.
&&
LAT...LON 3264 11477 3271 11474 3271 11487 3339 11501
3336 11431 3257 11454
$$
WOODALL2 follow-up statements
054
WGUS75 KPSR 140220
FFSPSR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
720 PM PDT FRI JUL 13 2012
AZC012-027-CAC025-140345-
/O.CON.KPSR.FF.W.0010.000000T0000Z-120714T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LA PAZ AZ-YUMA AZ-IMPERIAL CA-
720 PM PDT FRI JUL 13 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM PDT/845 PM
MST/ FOR EASTERN IMPERIAL...WEST CENTRAL YUMA AND SOUTHWESTERN LA PAZ
COUNTIES...
AT 714 PM PDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN FROM YUMA...TO NORTH OF
CIBOLA.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
YUMA...MARTINEZ LAKE...INTERSTATE 8 NEAR YUMA...AND HIGHWAY 95 NORTH
OUT OF YUMA.
RADAR INDICATES UP TO 2 INCHES OF RAIN HAS FALLEN WEST OF MARTINEZ
LAKE SINCE 615 PM. RUNOFF FROM THE HEAVY RAIN WILL CONTINUE THE
THREAT OF FLOODING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND. REMEMBER...TURN AROUND...DONT DROWN.
&&
LAT...LON 3264 11477 3271 11474 3271 11484 3338 11492
3336 11431 3257 11454
$$
WOODALL284
WGUS75 KPSR 140311
FFSPSR
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
811 PM PDT FRI JUL 13 2012
AZC012-027-CAC025-140345-
/O.CON.KPSR.FF.W.0010.000000T0000Z-120714T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LA PAZ AZ-YUMA AZ-IMPERIAL CA-
811 PM PDT FRI JUL 13 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM PDT/845 PM
MST/ FOR EASTERN IMPERIAL...WEST CENTRAL YUMA AND SOUTHWESTERN LA PAZ
COUNTIES...
...SIGNIFICANT FLASH FLOODING POSSIBLE IN YUMA...
AT 806 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN FROM SOUTH OF YUMA...TO NEAR
SIBILLA. MOVEMENT WAS SLOWLY NORTH.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO YUMA...YUMA
PROVING GROUND...ANDRAS...MARTINEZ LAKE...SIBILLA AND WINTERHAVEN.
RADAR INDICATED THAT 1 TO 2 INCHES OF RAIN HAS FALLEN FROM NEAR YUMA
TO WEST OF MARTINEZ LAKE SINCE 700 PM. CONTINUED RUNOFF AND FLOODING
IS LIKELY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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. REMEMBER...TURN AROUND...DON'T DROWN.
&&
LAT...LON 3264 11477 3271 11474 3271 11484 3338 11492
3336 11431 3257 11454
$$
WOODALLThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 5:16 PM MST | Special Weather Statement | PSR | Yuma | 59 min |
| Jul 13, 5:21 PM MST | Special Weather Statement | PSR | Yuma | 54 min |
| Jul 13, 5:30 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 60 min |
| Jul 13, 5:37 PM MST | Special Weather Statement | PSR | 38 min | |
| Jul 13, 6:02 PM MST | Flash Flood Warning | PSR | La Paz, Yuma | 118 min |
| Jul 13, 6:42 PM MST | Severe Thunderstorm Warning | PSR | La Paz, Yuma | 43 min |
| Jul 13, 7:30 PM MST | Areal Flood Advisory | PSR | La Paz | 2 hr |
| Jul 13, 7:57 PM MST | Areal Flood Advisory | PSR | La Paz, Yuma | 2 hr |
| Jul 13, 8:33 PM MST | Areal Flood Advisory | PSR | La Paz | 117 min |
| Jul 13, 8:38 PM MST | Flash Flood Warning | PSR | Yuma | 112 min |
| Jul 13, 9:47 PM MST | Areal Flood Advisory | PSR | La Paz | 118 min |
| Jul 13, 10:28 PM MST | Areal Flood Advisory | PSR | La Paz, Yuma | 3 hr |
| Jul 14, 11:01 AM MST | Special Weather Statement | PSR | La Paz | 44 min |
| Jul 14, 11:37 AM MST | Areal Flood Advisory | PSR | La Paz | 113 min |
| Jul 14, 11:40 AM MST | Areal Flood Advisory | PSR | La Paz | 2 hr |
| Jul 14, 11:52 AM MST | Special Weather Statement | PSR | La Paz | 38 min |
| Jul 14, 12:15 PM MST | Areal Flood Advisory | PSR | La Paz | 2 hr |
| Jul 14, 12:34 PM MST | Flash Flood Warning | PSR | La Paz | 3 hr |
| Jul 14, 12:38 PM MST | Flash Flood Warning | PSR | La Paz | 3 hr |
| Jul 14, 12:49 PM MST | Flash Flood Warning | PSR | Maricopa | 3 hr |
| Jul 14, 1:20 PM MST | Areal Flood Advisory | PSR | Maricopa | 115 min |
| Jul 14, 2:02 PM MST | Flash Flood Warning | PSR | Maricopa | 3 hr |
| Jul 14, 2:28 PM MST | Special Weather Statement | PSR | 47 min | |
| Jul 14, 2:32 PM MST | Areal Flood Advisory | PSR | Maricopa, Pinal | 118 min |
| Jul 14, 2:42 PM MST | Areal Flood Advisory | PSR | Maricopa, Pinal | 2 hr |
| Jul 14, 2:51 PM MST | Areal Flood Advisory | PSR | Gila | 114 min |
| Jul 14, 2:53 PM MST | Areal Flood Advisory | PSR | La Paz, Maricopa | 112 min |
| Jul 14, 3:01 PM MST | Severe Thunderstorm Warning | PSR | Gila | 59 min |
| Jul 14, 3:14 PM MST | Flash Flood Warning | PSR | La Paz | 2 hr |
| Jul 14, 3:21 PM MST | Areal Flood Advisory | PSR | Maricopa | 114 min |
| Jul 14, 3:23 PM MST | Blowing Dust Advisory | PSR | 97 min | |
| Jul 14, 3:27 PM MST | Flash Flood Warning | PSR | La Paz, Maricopa | 2 hr |
| Jul 14, 3:35 PM MST | Areal Flood Advisory | PSR | Maricopa | 115 min |
| Jul 14, 3:35 PM MST | Special Weather Statement | PSR | 40 min | |
| Jul 14, 3:43 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 47 min |
| Jul 14, 3:44 PM MST | Special Weather Statement | PSR | 46 min | |
| Jul 14, 3:48 PM MST | Flash Flood Warning | PSR | Maricopa, Pinal | 117 min |
| Jul 14, 4:30 PM MST | Areal Flood Advisory | PSR | La Paz, Yuma | 90 min |
| Jul 14, 4:50 PM MST | Flash Flood Warning | PSR | Maricopa | 2 hr |
| Jul 13, 5:45 PM MST | Areal Flood Advisory | PSR | Riverside | 2 hr |
| Jul 13, 6:08 PM MST | Flash Flood Warning | PSR | Riverside | 112 min |
| Jul 13, 6:35 PM MST | Areal Flood Advisory | PSR | Imperial | 115 min |
| Jul 13, 10:05 PM MST | Areal Flood Advisory | PSR | Imperial | 3 hr |
| Jul 14, 4:35 PM MST | Special Weather Statement | PSR | Imperial | 55 min |
| Jul 14, 4:44 PM MST | Areal Flood Advisory | PSR | Riverside | 78 min |
Nearby
Flash Flood Warnings in Arizona, 2012Flash Flood Warnings in California, 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.