Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 40, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Jul 29, 1996, 4:41 PM MST for Pima County, Arizona. It was in force for 64 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 29, 1996, 4:41 PM MST (23:41 UTC)
- Expired
- Jul 29, 1996, 5:45 PM MST
- In force
- 64 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 11.7 hours before the alert went out and 84 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
- 659 J/kg
- Mixed-layer CIN
- -157 J/kg
- Mixed-layer LCL
- 2078 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- -5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 292340 FFWTUS AZC019-300045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 441 PM MST MON JUL 29 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 545 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ARIZONA ...EASTERN PIMA COUNTY TUCSON DOPPLER RADAR INDICATED THAT THE STRONG THUNDERSTORM OVER THE CATALINA MOUNTAINS IS STILL PRODUCING VERY HEAVY RAIN. RADAR HAS ESTIMATED UP TO THREE INCHES OF RAINFALL AND AND A RAIN GAGE HAS RECORD ONE AND A HALF INCHES. WITH THE GROUND WET FROM PREVIOUS STORMS OVER THE WEEKEND...WATER MAY BE RUNNING RAPIDLY IN STREAMS AND CREEKS...ESPECIALLY SABINO CANYON. 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. BE CAUTIOUS FOR MUD AND DEBRIS ON THE ROADWAYS.
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 29, 2:18 PM MST, 2 hours 23 minutes earlier.
Area forecast discussion, Jul 29, 2:18 PM MST, 2 hours 23 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 200 PM MST MON JUL 29 1996 TSTMS FIRING ON ALL THE MTNS AND DEWPOINT FALLING OFF BUT WE MAY STILL GET A FEW OFF OF MTNS. DONT SEE A LOT TO CHANGE THINGS NEXT FEW DAYS SO HAVE BROAD BRUSHED FCST. GYM WAS WET THIS MORNING AND IF WE CAN GET ANOTHER GULF SURGE GOING THINGS MAY PICK UP AGAIN. STILL NEED MRF PICKS OUR POPS UP AGAIN BY FRI AND ACCEPT THIS SCENARIO. STILL WITH HI VERY CLOSE TO US SOME SUPRESSION WILL TAKE PLACE. 72HR FCST FOR HRCN DUG LUKS INTERESTING...MAY HELP INITIATE GULF SURGE. TUS 3232. HOLBROOK
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:33 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 57 min |
| Jul 29, 3:21 PM MST | Severe Thunderstorm Warning | TWC | Pima | 69 min |
| Jul 29, 3:45 PM MST | Flash Flood Warning | TWC | Pima | 60 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.