Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 6, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 7, 1996, 5:13 PM MST for Cochise County, Pima County, Arizona. It was in force for 47 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, 5:13 PM MST (00:13 UTC)
- Expired
- Jul 7, 1996, 6:00 PM MST
- In force
- 47 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Cochise County, AZ, Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.2 hours before the alert went out and 24 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 080015 FFWTUS AZC019-003-080100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 513 PM MST SUN JUL 7 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 600 PM MST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL ARIZONA ...NORTHEASTERN PIMA COUNTY IN SOUTHEAST ARIZONA ...NORTHWESTERN COCHISE COUNTY AT 510 PM TUCSON DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CONTINUING IN FAR NORTHEAST PIMA COUNTY NEAR REDINGTON ABOUT 20 MILES NORTHEAST OF TUCSON...WITH FURTHER DEVELOPMENT EASTWARD IN FAR NORTHWEST COCHISE COUNTY. THE SEVERE THUNDERSTORM AND FLASH FLOOD WARNING HAS BEEN EXTENDED UNTIL 600 PM AND EXPANDED TO INCLUDE NORTHWEST COCHISE COUNTY. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. MEYER
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, 2 hours 49 minutes earlier.
Area forecast discussion, Jul 7, 2:24 PM MST, 2 hours 49 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 5:13 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Pima | 47 min |
| Jul 7, 6:00 PM MST | Flash Flood Warning | TWC | Cochise | 60 min |
| Jul 7, 6:58 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Jul 7, 7:16 PM MST | Flash Flood Warning | TWC | Pima | 44 min |
| Jul 7, 7:16 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Jul 7, 8:04 PM MST | Severe Thunderstorm Warning | TWC | Pima | 56 min |
| Jul 8, 2:40 PM MST | Flash Flood Warning | TWC | Santa Cruz | 2 hr |
| Jul 8, 2:44 PM MST | Flash Flood Warning | TWC | Pima | 61 min |
| Jul 8, 2:44 PM MST | Severe Thunderstorm Warning | TWC | Pima | 61 min |
| Jul 8, 3:11 PM MST | Flash Flood Warning | TWC | Cochise | 94 min |
| Jul 8, 3:26 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 49 min |
| Jul 8, 3:48 PM MST | Flash Flood Warning | TWC | Pima | 57 min |
| Jul 8, 3:48 PM MST | Severe Thunderstorm Warning | TWC | Pima | 57 min |
| Jul 8, 3:55 PM MST | Tornado Warning | TWC | Pima | 35 min |
| Jul 8, 4:16 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 59 min |
| Jul 8, 4:30 PM MST | Flash Flood Warning | TWC | Santa Cruz | 45 min |
| Jul 8, 4:30 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 45 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.