Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 74, NWS Tucson, AZ

September 6, 2003Pinal County, Arizona

NWS Tucson, AZ issued this flash flood warning at Sep 6, 2003, 5:26 PM MST for Pinal County, Arizona. It was in force for 34 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 6, 2003, 5:26 PM MST (00:26 UTC)
Expired
Sep 6, 2003, 6:00 PM MST
In force
34 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Pinal County, AZ

The radar

The Phoenix radar (KIWA), 78 km from the middle of the area, began a volume at 00:28 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, 0.4 hours before the alert went out and 95 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 2003-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 629 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 2003-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.193958Sfc1 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
629 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1788 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 070030
FFWTWC
AZC021-070200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
526 PM MST SAT SEP 6 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTH CENTRAL PINAL COUNTY IN ARIZONA

* UNTIL 700 PM MST

* AT 521 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED THAT VERY 
  HEAVY RAIN HAS BEEN OCCURRING FROM MULTIPLE THUNDERSTORMS SINCE 
  430 PM IN A REMOTE AREA 5 MILES SOUTHWEST OF FRIENDLY CORNERS AND 
  ALSO JUST EAST OF INDIAN NATION HIGHWAY 15. DOPPLER RADAR          
  ESTIMATED RAINFALL TOTALS OF ONE TO TWO AND A HALF INCHES OF RAIN 
  HAS FALLEN.

SMALL STREAMS...SECONDARY ROADS...AND NORMALLY DRY WASHES WILL FLOOD
QUICKLY. DO NOT DRIVE INTO FLOODED AREAS. MOVE TO HIGHER GROUND.

LAT...LON 3254 11201 3253 11150 3261 11154 3275 11186

$$

GLUECK

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 5:37 PM MSTFlash Flood WarningTWCCochise
Sep 7, 2:33 PM MSTFlash Flood WarningTWCPima, Santa Cruz57 min

Nearby

Flash Flood Warnings in Arizona, 2003Every flash flood warning in 2003

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.