Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 83, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 3, 1996, 5:24 AM MST for Pima County, Arizona. It was in force for 66 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
- Sep 3, 1996, 5:24 AM MST (12:24 UTC)
- Expired
- Sep 3, 1996, 6:30 AM MST
- In force
- 66 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 0.4 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
- 1155 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1425 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 72 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 031225 FFWTUS AZC019-031330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 524 AM MST TUE SEP 3 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 630 AM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ARIZONA ...NORTHEASTERN PIMA COUNTY...INCLUDING THE GREATER TUCSON AREA... AT 521 AM TUCSON DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS OVER THE CATALINA MOUNTAINS MOVING INTO NORTHERN TUCSON. THESE STORMS WERE ALSO GENERATING EXTREMELY HEAVY RAINFALL. MOVEMENT WAS TO THE SOUTH AT ABOUT 15 MPH. THESE STORMS ARE EXPECTED TO AFFECT MOST OF THE GREATER TUCSON AREA. 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. SEVERE THUNDERSTORMS GENERATED DAMAGING WINDS...LARGE HAIL AND FREQUENT LIGHTNING. 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 Sep 3, 1:57 AM MST, 3 hours 27 minutes earlier.
Area forecast discussion, Sep 3, 1:57 AM MST, 3 hours 27 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 215 AM MST TUE SEP 3 1996 A RELATIVELY QUIET DAY YDA FOR THESE PARTS...TEMPS HAD A HARD TIME WITH PREVIOUS DAYS RAINFALL...THINGS A BIT MORE STBL. TEMPS SHUD REBOUND NICELY TDA WITH A LTL BETTER AFTN CONVECTION. SLY FLOW CONTS IN LWR LVLS AT YUM...DEWPT HOPPED BACK UP TO 70 AT 07Z. MDLS CONT RECENT TREND WITH TRANSIENT 4 CRNRS HIGH CNTR SHIFTING EWD WITH RDG AS PAC NW LOW / TROF MOVES ONSHORE. THIS SHUD ENHANCE SLY FLOW FOR A TIME ALL ON ITS OWN. A COUPLE THINGS TO FACTOR INTO THIS. FIRST...TS ELIDA SHOWING A TRACK N-NW JUST MISSING TIP OF BAJA PENINSULA TO W AND STRENGTHENING. A DEFINITE HELP PUMPING MSTR INTO GULF AND NWD. ANOTHER ITEM...BOTH ETA AND NGM SHOW VORT SHIFTING INTO NRN GULF WITH THE NGM SUBSEQUENTLY WASHING IT OUT WHILE ETA BRINGS IT INTO SW AZ AT 48 HRS. REGARDLESS...AVN SEEMS TO HAVE THE RIGHT IDEA WITH INCRG MSTR BY THURSDAY WITH NR 70 PERCENT MEAN RH. WX TREND SHUD BE UPWARD BEFORE ANY POTENTIAL DRYING FROM W MUCH LATER. A FEW TWEAKS WITH NO MAJOR CHGS. TUS 122. MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 5:24 AM MST | Severe Thunderstorm Warning | TWC | Pima | 66 min |
| Sep 3, 5:52 AM MST | Flash Flood Warning | TWC | Pima | 58 min |
| Sep 3, 5:52 AM MST | Severe Thunderstorm Warning | TWC | Pima | 58 min |
| Sep 3, 6:46 AM MST | Flash Flood Warning | TWC | Pima, Santa Cruz | 74 min |
| Sep 3, 7:57 AM MST | Flash Flood Warning | TWC | Pima | 93 min |
| Sep 3, 9:30 AM MST | Flash Flood Warning | TWC | Pima | 60 min |
| Sep 3, 3:59 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 46 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.