Alert archive / Arizona / Flash Flood Warnings in 2013
Flash Flood Warning 13, NWS Phoenix, AZ
NWS Phoenix, AZ issued this flash flood warning at Aug 24, 2013, 11:47 AM MST for La Paz 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
- Aug 24, 2013, 11:47 AM MST (18:47 UTC)
- Expired
- Aug 24, 2013, 1:45 PM MST
- In force
- 118 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Flood severity
- None
County La Paz County, AZ
The radar
The Yuma radar (KYUX), 149 km from the middle of the area, began a volume at 18:46 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
Yuma Intl Airpor, AZ (KYUM), launched 12:00Z, 6.8 hours before the alert went out and 131 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
- 664 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 1942 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
592 WGUS55 KPSR 241847 FFWPSR AZC012-242045- /O.NEW.KPSR.FF.W.0013.130824T1847Z-130824T2045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 1147 AM MST SAT AUG 24 2013 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL LA PAZ COUNTY IN WEST CENTRAL ARIZONA... * UNTIL 145 PM MST * AT 1137 AM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED VERY HEAVY RAIN THAT WILL CAUSE FLASH FLOODING. ISOLATED THUNDERSTORMS WITH HEAVY RAIN CONTINUED TO DEVELOP AND MOVE NORTH ACROSS PORTIONS OF CENTRAL LA PAZ COUNTY...AND RADAR ESTIMATED THAT MORE THAN 1.5 INCHES FELL WEST OF BRENDA AND JUST SOUTH OF INTERSTATE 10 SINCE 1045 AM. THIS RAIN WILL ADD TO SIGNIFICANT AMOUNTS THAT FELL IN THE WARNING AREA EARLIER THIS MORNING. * THE STORM PRODUCING VERY HEAVY RAIN THAT WILL CAUSE FLASH FLOODING WILL LIKELY AFFECT MOTORISTS ON INTERSTATE 10 AND HIGHWAY 60 SOUTHWEST OF VICKSBURG. 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. MOST FLOOD DEATHS OCCUR IN MOTORIZED VEHICLES. WHEN ENCOUNTERING FLOODED ROADS...MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3374 11398 3375 11377 3358 11377 3356 11398 $$ CB
1 follow-up statement
879 WGUS75 KPSR 242039 FFSPSR FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 139 PM MST SAT AUG 24 2013 AZC012-242045- /O.CON.KPSR.FF.W.0013.000000T0000Z-130824T2045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LA PAZ AZ- 139 PM MST SAT AUG 24 2013 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 PM MST FOR CENTRAL LA PAZ COUNTY... AT 135 PM MST...THUNDERSTORMS IN THE WARNING AREA HAD DIMINISHED SIGNIFICANTLY SINCE 1 PM AND RAINFALL TOTALS WERE MOSTLY LESS THAN ONE QUARTER INCH. AS A RESULT THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 145 PM. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BRENDA...INTERSTATE 10 AND HIGHWAY 60. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WARNING MEANS THAT PEOPLE ALONG THE BANKS OF WASHES AND CREEKS SHOULD MOVE TO HIGHER GROUND IMMEDIATELY. NORMALLY DRY WASHES AND STREAMS WILL SUDDENLY HAVE RUNNING WATER AND MAKE UNBRIDGED CROSSINGS IMPASSABLE. STREETS...UNDERPASSES...AND LOW SPOTS WILL BECOME INUNDATED MAKING DRIVING HAZARDOUS IN THE WARNED AREA. MOST FLOOD DEATHS OCCUR IN MOTORIZED VEHICLES. WHEN ENCOUNTERING FLOODED ROADS...MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN. && LAT...LON 3374 11398 3375 11377 3358 11377 3356 11398 $$ CB
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 3:19 AM MST | Areal Flood Advisory | PSR | Maricopa | 3 hr |
| Aug 24, 4:47 AM MST | Flash Flood Warning | PSR | Maricopa | 3 hr |
| Aug 24, 5:24 AM MST | Areal Flood Advisory | PSR | Maricopa | 3 hr |
| Aug 24, 5:53 AM MST | Flash Flood Warning | PSR | Maricopa | 3 hr |
| Aug 24, 6:28 AM MST | Areal Flood Advisory | PSR | La Paz | 3 hr |
| Aug 24, 8:44 AM MST | Flash Flood Warning | PSR | Maricopa | 91 min |
| Aug 24, 9:33 AM MST | Areal Flood Advisory | PSR | La Paz | 117 min |
| Aug 24, 9:47 AM MST | Flash Flood Warning | PSR | La Paz | 118 min |
| Aug 24, 2:27 PM MST | Special Weather Statement | PSR | 48 min | |
| Aug 24, 3:24 PM MST | Special Weather Statement | PSR | 66 min | |
| Aug 24, 4:37 PM MST | Special Weather Statement | PSR | 53 min |
Nearby
Flash Flood Warnings in Arizona, 2013Every flash flood warning in 2013
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.