Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 90, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 3, 1996, 10:55 PM MST for Pima County, Pinal County, Arizona. It was in force for 2 hr. 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, 10:55 PM MST (05:55 UTC)
- Expired
- Sep 4, 1996, 1:00 AM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Pima County, AZ, Pinal County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 5.9 hours before the alert went out and 73 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
- 181 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 1988 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 52 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 040553 FFWTUS AZC019-021-040800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 1055 PM MST TUE SEP 3 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 100 AM MST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL ARIZONA ...EASTERN PIMA COUNTY...EASTERN PINAL COUNTY AT 1050 PM DOPPLER RADAR INDICATED STRONG THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER EASTERN PINAL AND EASTERN PIMA COUNTIES. THE STORMS EXTENDED FROM NEAR PICACHO THROUGH TUCSON. THIS STORM WERE MOVING TO THE SOUTHWEST AT 15 MPH. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, 8:54 PM MST, 2 hours 1 minute earlier.
Area forecast discussion, Sep 3, 8:54 PM MST, 2 hours 1 minute before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 900 PM MST TUE SEP 3 1996 LOTS OF MSTR IN WRN PIMA COUNTY EVIDENCED BY THE LARGE CU FIELD THERE THIS AFTN. SEA BREEZE TYPE FLOW MOVG EWD THRU CU FIELD AND ENHANCED TSTM DEVELOPMENT. STG TSTMS ALONG MEXICAN BORDER SHOWED A 70 VIL FROM KYUX. STLT SHOWG STABLE AMS WITH FEW CLDS IN TUCSON AREA. DID GET A SHORT LIVED, WEAK TSTM OVER THE RINCONS...INITIATED BY A OUTFLOW BOUNDARY F`ROM TSTMS IN COCHISE COUNTY. SEE NO LET UP IN TSTMS THRU FCST PD. STILL SLY WINDS AT YUMA...AND MSTR FROM TS ELIDA LOOMING IN THE FUTURE. MADE ONLY FIRST PD CHGS PER CURRENT WX CONITIONS. TUS 3333.
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 5:01 PM MST | Severe Thunderstorm Warning | TWC | Greenlee | 59 min |
| Sep 3, 6:07 PM MST | Flash Flood Warning | TWC | Pima | 2 hr |
| Sep 3, 6:54 PM MST | Flash Flood Warning | TWC | Pima | 66 min |
| Sep 3, 6:54 PM MST | Severe Thunderstorm Warning | TWC | Pima | 66 min |
| Sep 3, 10:01 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 59 min |
| Sep 3, 11:20 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 55 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.