Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 13, NWS Tucson, AZ

July 25, 2003Pima County, Pinal County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 25, 2003, 8:44 PM MST for Pima County, Pinal County, Arizona. It was in force for 1 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 25, 2003, 8:44 PM MST (03:44 UTC)
Expired: Jul 25, 2003, 8:45 PM MST
In force: 1 min
Issued by: NWS Tucson, AZ
Area: Counties, with a storm outline in the text

Counties Pima County, AZ, Pinal County, AZ

The radar

The Tucson radar (KEMX), 61 km from the middle of the area, began a volume at 03:40 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, 3.7 hours before the alert went out and 25 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1030 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 2806 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 67 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 260345
FFWTWC
AZC019-021-260445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
844 PM MST FRI JUL 25 2003

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EAST CENTRAL PIMA COUNTY IN ARIZONA
    THIS INCLUDES THE CITIES OF...TUCSON...ORO VALLEY...MARANA
  EXTREME SOUTH CENTRAL PINAL COUNTY IN ARIZONA

* UNTIL 945 PM MST

* AT 844 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY       
  HEAVY RAIN OVER PARTS OF TUCSON...MOVING NORTHWEST AT 5 MPH. THE   
  HEAVY RAIN WILL IMPACT NORTHWEST TUCSON AND THE MARANA AREA        
  THROUGH 945 PM MST.

LAT...LON 3201 11138 3191 11111 3252 11076 3253 11120

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 6:36 PM MST	Severe Thunderstorm Warning	TWC	Cochise	24 min
Jul 25, 6:51 PM MST	Severe Thunderstorm Warning	TWC	Cochise	24 min
Jul 25, 6:53 PM MST	Flash Flood Warning	TWC	Cochise	7 min
Jul 25, 7:55 PM MST	Severe Thunderstorm Warning	TWC	Graham	65 min
Jul 25, 8:22 PM MST	Severe Thunderstorm Warning	TWC	Graham	38 min
Jul 25, 8:59 PM MST	Flash Flood Warning	TWC	Cochise, Graham	31 min
Jul 25, 9:57 PM MST	Severe Thunderstorm Warning	TWC	Graham	48 min
Jul 26, 2:36 PM MST	Severe Thunderstorm Warning	TWC	Cochise	39 min
Jul 26, 2:54 PM MST	Flash Flood Warning	TWC	Cochise	21 min
Jul 26, 4:12 PM MST	Severe Thunderstorm Warning	TWC	Cochise	33 min
Jul 26, 4:43 PM MST	Severe Thunderstorm Warning	TWC	Cochise	47 min

Nearby

Flash Flood Warnings in Arizona, 2003 Every 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.