Alert archive / Arizona / Flash Flood Warnings in 2012
Flash Flood Warning 8, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Jul 13, 2012, 6:02 PM MST for La Paz County, Yuma County, Arizona. It was in force for 118 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, 6:02 PM MST (01:02 UTC)
- Expired
- Jul 13, 2012, 8:00 PM MST
- In force
- 118 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Flood severity
- None
Counties La Paz County, AZ, Yuma County, AZ
The radar
The Yuma radar (KYUX), 79 km from the middle of the area, began a volume at 01:04 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, 1.0 hours before the alert went out and 215 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
- 35 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 1871 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 34 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
538 WGUS55 KPSR 140102 FFWPSR AZC012-027-140300- /O.NEW.KPSR.FF.W.0008.120714T0102Z-120714T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 602 PM MST FRI JUL 13 2012 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL YUMA COUNTY IN SOUTHWEST ARIZONA... SOUTHWESTERN LA PAZ COUNTY IN WEST CENTRAL ARIZONA... * UNTIL 800 PM MST * AT 600 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED THUNDERSTORMS WITH VERY HEAVY RAIN OVER WESTERN PORTIONS OF THE KOFA NATIONAL WILDLIFE REFUGE. MOVEMENT WAS NORTH AT 15 MPH. * RUNOFF FROM THE HEAVY RAIN WILL AFFECT HIGHWAY 95 NORTH OF DOME. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT PEOPLE ALONG THE BANKS OF WASHES AND CREEKS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. NORMALLY DRY WASHES AND STREAMS WILL SUDDENLY HAVE RUNNING WATER AND MAKE UNBRIDGED CROSSINGS IMPASSABLE. STREETS...UNDERPASSES...AND LOW SPOTS WILL BECOME INUNDATED MAKING DRIVING HAZARDOUS IN THE WARNED AREA. && LAT...LON 3335 11431 3331 11396 3277 11420 3281 11447 $$ WOODALL
2 follow-up statements
359 WGUS75 KPSR 140148 FFSPSR FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 648 PM MST FRI JUL 13 2012 AZC012-027-140300- /O.CON.KPSR.FF.W.0008.000000T0000Z-120714T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LA PAZ AZ-YUMA AZ- 648 PM MST FRI JUL 13 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MST FOR CENTRAL YUMA AND SOUTHWESTERN LA PAZ COUNTIES... AT 642 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED MODERATE TO HEAVY RAIN NEAR AND EAST OF THE YUMA PROVING GROUND. RADAR ESTIMATES THAT 2 TO 3 INCHES OF RAIN HAS FALLEN JUST EAST OF HIGHWAY 95 OVER WESTERN PORTIONS OF THE KOFA WILDLIFE REFUGE. RUNOFF FROM THE HEAVY RAIN WILL LIKELY AFFECT HIGHWAY 95 NORTH OF DOME. PRECAUTIONARY/PREPAREDNESS ACTIONS... MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3335 11431 3331 11396 3277 11420 3281 11447 $$ WOODALL
813 WGUS75 KPSR 140246 FFSPSR FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 746 PM MST FRI JUL 13 2012 AZC012-027-140300- /O.CON.KPSR.FF.W.0008.000000T0000Z-120714T0300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LA PAZ AZ-YUMA AZ- 746 PM MST FRI JUL 13 2012 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 800 PM MST FOR CENTRAL YUMA AND SOUTHWESTERN LA PAZ COUNTIES... AT 742 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED LIGHT RAIN LINGERING EAST OF HIGHWAY 95 OVER THE NORTHERN PORTION OF THE YUMA PROVING GROUND. ALTHOUGH THE HEAVY RAIN HAS DIMINISHED...RUNOFF FROM THE EARLIER HEAVY RAIN WILL LIKELY CONTINUE. THIS WILL CONTINUE THE THREAT OF FLOODING ALONG HIGHWAY 95. PRECAUTIONARY/PREPAREDNESS ACTIONS... BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. NEVER DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3335 11431 3331 11396 3277 11420 3281 11447 $$ WOODALL
The 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, 6:42 PM MST | Severe Thunderstorm Warning | PSR | La Paz, Yuma | 43 min |
| Jul 13, 6:54 PM MST | Flash Flood Warning | PSR | La Paz, Yuma | 111 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 |
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.