Alert archive / Arizona / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS Phoenix, AZ

July 5, 2014Yuma County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Jul 5, 2014, 5:40 PM MST for Yuma County, Arizona. It was in force for 2 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 5, 2014, 5:40 PM MST (00:40 UTC)
Expired
Jul 5, 2014, 7:45 PM MST
In force
2 hr
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon
Flood severity
None

County Yuma County, AZ

The radar

The Yuma radar (KYUX), 70 km from the middle of the area, began a volume at 00:43 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, 0.7 hours before the alert went out and 212 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 2014-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 418 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phoenix, AZ at 00:00Z on 2014-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 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
418 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
2298 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

814 
WGUS55 KPSR 060040
FFWPSR
AZC027-060245-
/O.NEW.KPSR.FF.W.0002.140706T0040Z-140706T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
540 PM MST SAT JUL 5 2014

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL YUMA COUNTY IN SOUTHWEST ARIZONA...

* UNTIL 745 PM MST

* AT 535 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
  VERY HEAVY RAIN THAT WILL CAUSE FLASH FLOODING.

* THE STORM PRODUCING VERY HEAVY RAIN THAT WILL CAUSE FLASH FLOODING
  WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE INDICATED
  COUNTY.

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.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF NORMALLY
DRY WASHES AND CREEKS...ROADS...AND LOW LYING SPOTS. UNBRIDGED
CROSSINGS WILL BE ESPECIALLY DANGEROUS.

&&

LAT...LON 3301 11427 3310 11426 3310 11404 3287 11390
      3283 11437

$$

KUHLMAN
1 follow-up statement
003 
WGUS75 KPSR 060235
FFSPSR

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
735 PM MST SAT JUL 5 2014

AZC027-060246-
/O.EXP.KPSR.FF.W.0002.000000T0000Z-140706T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
YUMA AZ-
735 PM MST SAT JUL 5 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 745 PM MST FOR CENTRAL YUMA
COUNTY...

LAT...LON 3301 11427 3310 11426 3310 11404 3287 11390
      3283 11437

$$

KUHLMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 5:06 PM MSTSpecial Weather StatementPSRYuma39 min
Jul 5, 5:23 PM MSTAreal Flood AdvisoryPSRLa Paz, Yuma112 min
Jul 5, 5:26 PM MSTAreal Flood AdvisoryPSRLa Paz, Yuma2 hr
Jul 5, 5:30 PM MSTSpecial Weather StatementPSR30 min
Jul 5, 5:34 PM MSTAreal Flood AdvisoryPSRYuma116 min
Jul 5, 5:41 PM MSTSpecial Weather StatementPSRYuma49 min
Jul 5, 5:56 PM MSTBlowing Dust AdvisoryPSR3 hr
Jul 5, 6:10 PM MSTSpecial Weather StatementPSR50 min
Jul 5, 6:30 PM MSTSpecial Weather StatementPSRGila45 min
Jul 5, 6:50 PM MSTSpecial Weather StatementPSR25 min
Jul 5, 7:04 PM MSTFlash Flood WarningPSRGila, Maricopa3 hr
Jul 5, 7:51 PM MSTSpecial Weather StatementPSR24 min
Jul 5, 7:59 PM MSTSpecial Weather StatementPSRGila46 min
Jul 5, 8:27 PM MSTAreal Flood AdvisoryPSRGila108 min
Jul 5, 9:26 PM MSTAreal Flood AdvisoryPSRGila, Pinal2 hr
Jul 5, 10:13 PM MSTAreal Flood AdvisoryPSRPinal2 hr
Jul 5, 10:22 PM MSTBlowing Dust AdvisoryPSR38 min
Jul 5, 11:08 PM MSTAreal Flood AdvisoryPSRGila4 hr
Jul 6, 2:28 PM MSTSpecial Weather StatementPSR47 min
Jul 6, 3:04 PM MSTSevere Thunderstorm WarningPSRMaricopa41 min
Jul 6, 3:22 PM MSTAreal Flood AdvisoryPSRMaricopa113 min
Jul 6, 3:32 PM MSTFlash Flood WarningPSRMaricopa118 min
Jul 6, 3:41 PM MSTAreal Flood AdvisoryPSRLa Paz, Maricopa2 hr
Jul 6, 4:15 PM MSTSpecial Weather StatementPSR30 min
Jul 6, 4:17 PM MSTSpecial Weather StatementPSRLa Paz28 min

Nearby

Flash Flood Warnings in Arizona, 2014Every flash flood warning in 2014

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.