Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 19, NWS Tucson, AZ

July 27, 2003Santa Cruz County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 27, 2003, 5:55 PM MST for Santa Cruz County, Arizona. It was in force for 30 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 27, 2003, 5:55 PM MST (00:55 UTC)
Expired
Jul 27, 2003, 6:25 PM MST
In force
30 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 59 km from the middle of the area, began a volume at 00:59 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

Tuscon, AZ (KTUS), launched 00:00Z, 0.9 hours before the alert went out and 86 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, Tuscon, AZ at 00:00Z on 2003-07-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 698 joules per kilogram.LCLEL10008507005003002001001 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, Tuscon, AZ at 00:00Z on 2003-07-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.19395878Sfc1 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
698 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
2877 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 280055
FFWTWC
AZC023-280225-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
555 PM MST SUN JUL 27 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN SANTA CRUZ COUNTY IN ARIZONA
    THIS INCLUDES THE CITY OF NOGALES

* UNTIL 725 PM MST

* AT 555 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR NOGALES...MOVING      
  NORTHWEST AT 10 MPH. THE NOGALES WASH HAS ALREADY BEEN NEAR        
  BANKFULL FROM AN EARLIER THUNDERSTORM AND THE ADDITIONAL RAIN WILL 
  SEND THE NOGALES WASH OUT OF THE BANKS SHORTLY.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE NEAR...
   NOGALES AT 600 PM MST

LAT...LON 3132 11068 3153 11069 3152 11113 3131 11113

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 27, 6:30 PM MSTSevere Thunderstorm WarningTWCPima60 min
Jul 27, 7:33 PM MSTSevere Thunderstorm WarningTWCPima42 min
Jul 27, 7:55 PM MSTSevere Thunderstorm WarningTWCPima35 min
Jul 27, 8:31 PM MSTSevere Thunderstorm WarningTWCPima44 min
Jul 28, 3:37 PM MSTSevere Thunderstorm WarningTWCPima23 min
Jul 28, 3:56 PM MSTSevere Thunderstorm WarningTWCSanta Cruz34 min
Jul 28, 4:45 PM MSTFlash Flood WarningTWCPima, Santa Cruz30 min
Jul 28, 4:55 PM MSTSevere Thunderstorm WarningTWCPima50 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.