Alert archive / Arizona / Flash Flood Warnings in 1996

Flash Flood Warning 7, NWS Tucson, AZ

July 7, 1996Cochise County, Arizona

NWS Tucson, AZ issued this flash flood warning at Jul 7, 1996, 6:00 PM MST for Cochise County, Arizona. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 7, 1996, 6:00 PM MST (01:00 UTC)
Expired
Jul 7, 1996, 7:00 PM MST
In force
60 min
Issued by
NWS Tucson, AZ
Area
Whole counties

County Cochise County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.0 hours before the alert went out and 113 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 1996-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 390 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, Tuscon, AZ at 00:00Z on 1996-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
390 J/kg
Mixed-layer CIN
-28 J/kg
Mixed-layer LCL
3004 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUS 080103
FFWTUS
AZC003-080200-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON ARIZONA
600 PM MST SUN JUL 7 1996
 
THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  700 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST ARIZONA
 
   ...NORTHWESTERN COCHISE COUNTY
 
TUCSON DOPPLER RADAR CONTINUES TO SHOW THUNDERSTORMS WITH VERY HEAVY
RAINFALL OVER THE FAR CORNER OF NORTHWEST COCHISE COUNTY. THE STORMS
WERE LOCATED BETWEEN INTERSTATE 10 WEST OF WILLCOX AND THE
COCHISE..PIMA COUNTY LINE.  THE STORMS WERE SHOWING VERY LITTLE
MOVEMENT.
 
THE FLASH FLOOD WARNING WILL BE EXTENDED UNTIL 7 PM FOR THE
NORTHWEST CORNER OF COCHISE COUNTY.
 
RADAR ESTIMATES INDICATE THAT AS MUCH AS 3 TO 4 INCHES OF RAIN HAS
FALLEN IN NORTHWEST COCHISE COUNTY...AND HEAVY RAIN CONTINUES.
 
THE FLASH FLOOD WARNING FOR NORTHEAST PIMA COUNTY HAS BEEN ALLOWED
TO EXPIRE.  THE STORMS OVER NORTHEAST PIMA COUNTY HAVE DISSIPATED.
 
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.  MOVE TO HIGHER GROUND.
 
DRB

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tucson, AZ wrote its last area forecast discussion before this flash flood warning went out at Jul 7, 2:24 PM MST, 3 hours 36 minutes earlier.

Area forecast discussion, Jul 7, 2:24 PM MST, 3 hours 36 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
220 PM MST SUN JUL 7 1996

FINALLY SOME CHGS IN THE BIG SCALE WX PATTERN.
MON...UPR HI WKNS AND MOVS TO W TX TURNG FLOW MORE SELY. WK SHRT
WV ALONG W CST PRODUCES SWLY WINDS OVR S CA AND FAR SW AZ.
NGM INCRG MSTR INTO AREA WITH THETA E MAX OVR ZNS 22-26 AND 70
PCT MEAN RH S OF OLS.  NGM FCST SOUNDG FOR TUS SHOWG CAPE OVR
1000...K INDEX AT 39 AND PW 1.37.  THESE VALUES SIMILAR TO SAT
WHEN FLASH FLOODING WAS REPORTED.  WILL KEEP SCT POPS. TEMPS A
FUNCTION OF CLDS AND TSTMS.
MON NGT...NGM PULLING UP LOTS OF MSTR FROM MEXICO ON SLY WINDS.
70 PCT MEAN RH...MOSTLY CLDY AND MIN TEMPS UP OVR ZNS 23 AND 26.
TUE...TUS NGM FCST SOUNDG FOR 12Z TUE IS NRLY SATURATED FROM
650 MB ON UP. MOS GOING BKN-OVC WITH MEASURABLE RAIN. COULD THIS
PSBLY BE TOO WET FOR CONVECTIVE ACTVTY. AGREE WITH BLAST UP THAT
THIS MAY BE MORE OF A HEAVY RAIN DAY...THAN A SVR WX DAY. MAX
TEMPS DOWN SO`ME.
TUS 2323.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 5:13 PM MSTFlash Flood WarningTWCCochise, Pima47 min
Jul 7, 5:13 PM MSTSevere Thunderstorm WarningTWCCochise, Pima47 min
Jul 7, 6:58 PM MSTFlash Flood WarningTWCPima2 hr
Jul 7, 7:16 PM MSTFlash Flood WarningTWCPima44 min
Jul 7, 7:16 PM MSTSevere Thunderstorm WarningTWCPima44 min
Jul 7, 8:04 PM MSTSevere Thunderstorm WarningTWCPima56 min
Jul 8, 2:40 PM MSTFlash Flood WarningTWCSanta Cruz2 hr
Jul 8, 2:44 PM MSTFlash Flood WarningTWCPima61 min
Jul 8, 2:44 PM MSTSevere Thunderstorm WarningTWCPima61 min
Jul 8, 3:11 PM MSTFlash Flood WarningTWCCochise94 min
Jul 8, 3:26 PM MSTSevere Thunderstorm WarningTWCPima, Santa Cruz49 min
Jul 8, 3:48 PM MSTFlash Flood WarningTWCPima57 min
Jul 8, 3:48 PM MSTSevere Thunderstorm WarningTWCPima57 min
Jul 8, 3:55 PM MSTTornado WarningTWCPima35 min
Jul 8, 4:16 PM MSTSevere Thunderstorm WarningTWCCochise59 min
Jul 8, 4:30 PM MSTFlash Flood WarningTWCSanta Cruz45 min
Jul 8, 4:30 PM MSTSevere Thunderstorm WarningTWCSanta Cruz45 min

Nearby

Flash Flood Warnings in Arizona, 1996Every flash flood warning in 1996

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.