Alert archive / Arizona / Flash Flood Warnings in 2005

Flash Flood Warning 76, NWS Tucson, AZ

August 23, 2005Pima County, Arizona

NWS Tucson, AZ issued this flash flood warning at Aug 23, 2005, 6:59 AM MST for Pima County, Arizona. It was in force for 61 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 23, 2005, 6:59 AM MST (13:59 UTC)
Expired
Aug 23, 2005, 8:00 AM MST
In force
61 min
Issued by
NWS Tucson, AZ
Area
Counties, with a storm outline in the text

County Pima County, AZ

What was reported inside it

TimeReportWhereRemark
Aug 23, 6:59 AM MSTFLASH FLOOD3 Se Tucson, AZTHE INTERSECTION OF PARK AND AJO WAS FLOOED AND CLOSED AS WAS HOUGHTON ROAD NORTH AND SOUTH OF INTERSTATE 10 AND SAHUARITA ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 2.0 hours before the alert went out and 11 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 12:00Z on 2005-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 851 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2005-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
851 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
1541 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KTWC 231402
FFWTWC
AZC019-231600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
659 AM MST TUE AUG 23 2005

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

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

* UNTIL 900 AM MST

* AT 659 AM MST...THUNDERSTORMS WITH VERY HEAVY RAINFALL HAVE PRODUCED
  FLASH FLOODING ACROSS EASTERN PIMA COUNTY...INCLUDING THE TUCSON
  METRO AREA. STORMS WERE MOVING NORTHEAST AT 15 MPH.

SEVERAL REPORTS OF STALLED VEHICLES HAVE BEEN REPORTED...ESPECIALLY 
ACROSS SOUTH TUCSON. THE STONE UNDERPASS NEAR 6TH STREET...THE 
INTERSECTION OF PARK AND AJO...AND HOUGHTON ROAD SOUTH OF INTERSTATE 
10 TO SAHUARITA ROAD WERE ALL CLOSED.

THE HEAVIEST RAINFALL HAS FALLEN ALONG AND SOUTH OF VALENCIA ROAD TO 
SAHUARITA ROAD...INCLUDING THE TUCSON INTERNATIONAL AIRPORT. ORO 
VALLEY...CATALINA AND THE CATALINA FOOTHILLS HAVE ALSO RECEIVED VERY 
HEAVY RAIN. AN ESTIMATED 1.50 TO 2.00 INCHES OF RAIN HAS FALLEN 
ACROSS ISOLATED LOCATIONS. 

EXCESSIVE RAINFALL RUNOFF FROM WILL CAUSE FLOODING OF NORMALLY DRY 
WASHES...ROADWAY DIPS AND OTHER LOW LYING AREAS. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
NEVER ATTEMPT TO DRIVE AROUND BARRICADES.

LAT...LON 3250 11134 3191 11128 3179 11047 3252 11047

$$

WEATHER.GOV/TUCSON
2 follow-up statements
000 
WGUS75 KTWC 231440
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
729 AM MST TUE AUG 23 2005

AZC019-231600-
PIMA AZ-
729 AM MST TUE AUG 23 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 900 AM MST FOR EASTERN PIMA
COUNTY...

AT 722 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS WITH VERY HEAVY RAINFALL. THUNDERSTORMS HAVE 
PRODUCED FLASH FLOODING ACROSS EASTERN PIMA COUNTY...INCLUDING THE 
TUCSON METRO AREA. STORMS WERE MOVING NORTHEAST AT 15 MPH.

SEVERAL REPORTS OF STALLED VEHICLES HAVE BEEN REPORTED...ESPECIALLY 
ACROSS SOUTH TUCSON. THE STONE UNDERPASS NEAR 6TH STREET...THE 
INTERSECTION OF PARK AND AJO...AND HOUGHTON ROAD SOUTH OF INTERSTATE 
10 TO SAHUARITA ROAD WERE ALL CLOSED.

THE HEAVIEST RAINFALL HAS FALLEN ALONG AND SOUTH OF VALENCIA ROAD TO 
SAHUARITA ROAD...INCLUDING THE TUCSON INTERNATIONAL AIRPORT. ORO 
VALLEY...CATALINA AND THE CATALINA FOOTHILLS HAVE ALSO RECEIVED VERY 
HEAVY RAIN. AN ESTIMATED 1.50 TO 2.00 INCHES OF RAIN HAS FALLEN 
ACROSS ISOLATED LOCATIONS. AN ADDITIONAL AREA OF HEAVY RAIN WAS 
LOCATED BETWEEN SILVERBELL AND THREE POINTS...WHERE UP TO 1.00 INCH 
HAS FALLEN OVER THE PAST HOUR. THIS WILL LIKELY CAUSE A RISE IN THE 
BRAWLEY WASH OVER THE NEXT SEVERAL HOURS. LOW WATER CROSSINGS ALONG 
ROUTE 86 FROM TUCSON TO THREE POINTS WILL LIKELY BE AFFECTED. 

EXCESSIVE RAINFALL RUNOFF FROM WILL CAUSE FLOODING OF NORMALLY DRY 
WASHES...ROADWAY DIPS AND OTHER LOW LYING AREAS. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
NEVER ATTEMPT TO DRIVE AROUND BARRICADES.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

LAT...LON 3250 11156 3189 11147 3179 11047 3252 11047

$$

WEATHER.GOV/TUCSON
000 
WGUS75 KTWC 231536
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
828 AM MST TUE AUG 23 2005

AZC019-231600-
PIMA AZ-
828 AM MST TUE AUG 23 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 900 AM MST FOR EASTERN PIMA
COUNTY...

AT 822 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE THUNDERSTORMS WITH VERY HEAVY RAINFALL. THUNDERSTORMS HAVE 
PRODUCED FLASH FLOODING ACROSS EASTERN PIMA COUNTY...INCLUDING THE 
TUCSON METRO AREA. STORMS WERE MOVING NORTHEAST AT 15 MPH.

SEVERAL REPORTS OF STALLED VEHICLES HAVE BEEN REPORTED...ESPECIALLY 
ACROSS SOUTH TUCSON. THE STONE UNDERPASS NEAR 6TH STREET...THE 
INTERSECTION OF PARK AND AJO...AND HOUGHTON ROAD SOUTH OF INTERSTATE 
10 TO SAHUARITA ROAD WERE ALL CLOSED. THE INTERSECTION OF KOLB AND 
ESCALANTE HAS BEEN REPORTED IMPASSABLE. TRAILERS HAVE BEEN REPORTED 
SURROUNDED BY WATER ALONG OLD NOGALES HIGHWAY NORTH OF SAHUARITA.

THE HEAVIEST RAINFALL HAS FALLEN ALONG AND SOUTH OF VALENCIA ROAD TO 
SAHUARITA ROAD...INCLUDING THE TUCSON INTERNATIONAL AIRPORT. ORO 
VALLEY...CATALINA AND THE CATALINA FOOTHILLS HAVE ALSO RECEIVED VERY 
HEAVY RAIN. AN ESTIMATED 1.50 TO 2.00 INCHES OF RAIN HAS FALLEN 
ACROSS ISOLATED LOCATIONS. AN ADDITIONAL AREA OF HEAVY RAIN WAS 
LOCATED BETWEEN SILVERBELL AND THREE POINTS...WHERE UP TO 2.00 
INCHES HAS FALLEN OVER THE PAST 2 HOURS. THIS WILL LIKELY CAUSE A 
SIGNIFICANT RISE IN THE BRAWLEY WASH OVER THE NEXT SEVERAL HOURS. 
LOW WATER CROSSINGS ALONG ROUTE 86 FROM TUCSON TO THREE POINTS WILL 
LIKELY BE AFFECTED. 

EXCESSIVE RAINFALL RUNOFF FROM WILL CAUSE FLOODING OF NORMALLY DRY 
WASHES...ROADWAY DIPS AND OTHER LOW LYING AREAS. 

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE 
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS 
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 
NEVER ATTEMPT TO DRIVE AROUND BARRICADES.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALDER
CANYON.

LAT...LON 3250 11156 3189 11147 3179 11047 3252 11047

$$

WEATHER.GOV/TUCSON

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 5:17 AM MSTFlash Flood WarningTWCPima58 min
Aug 23, 8:50 AM MSTFlash Flood WarningTWCPima115 min
Aug 23, 9:27 AM MSTFlash Flood WarningTWCSanta Cruz2 hr
Aug 23, 11:27 AM MSTFlash Flood WarningTWCCochise2 hr

Nearby

Flash Flood Warnings in Arizona, 2005Every flash flood warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.