Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 81, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Sep 1, 1996, 9:10 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 1, 1996, 9:10 PM MST (04:10 UTC)
- Expired
- Sep 1, 1996, 11:15 PM 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, 4.2 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
- 998 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 2493 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 66 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 020410 FFWTUS AZC019-021-020615- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 910 PM MST SUN SEP 1 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 PM MST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL ARIZONA ...EASTERN PIMA COUNTY...SOUTHEASTERN PINAL COUNTY AT 9 PM...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER EASTERN PIMA COUNTY AND SOUTHEAST PINAL COUNTY PRODUCING VERY HEAVY RAINFALL. THE AREA AROUND CATALINA AND HIGHWAY 77 NORTH OF TUCSON HAS RECEIVED FROM ONE TO TWO INCHES OF RAIN...AND MANY AREAS OF TUCSON HAVE SEEN LOCALLY HEAVY RAINFALL UP TO ONE INCH IN T^HE PAST HOUR. WASHES ARE FILLING QUICKLY. MOTORISTS SHOULD USE EXTREME CAUTION AND AVOID FLOODED ROADWAY DIPS. BRYANT
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 1, 8:54 PM MST, 16 minutes earlier.
Area forecast discussion, Sep 1, 8:54 PM MST, 16 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 900 PM MST SUN SEP 1 1996 BUSY TGNT...MADE FISSRT PD CHGS. REST OF FCST OK. SFC DEW PTS STILL IN 60S ACRS CWA. TSTMS ON RIM MOVD INTO VALLEYS. TSTMS THIS AFTN HAVE BEEN SLO MOVERS AND HEAVY RAINERS. MODELS PUSH UPR HI OVR SRN CA EWD INTO SRN NM WITH WK VORT MAXES MOVG ACRS NRN AZ. LOW-LVL MSTR CONTG TO HANG ARND THRU TUE SO CONTD THREAT OF AFTN/EVE ISOLD TO WDLY SCT TRW. @TUS 5121.
In the hours before
Special weather statement, Sep 1, 6:06 PM MST, 3 hours 4 minutes before
AZZ026-020115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 605 PM MST SUN SEP 1 1996 ...SEVERE THUNDERSTORM WARNING CONTINUES FOR EASTCENTRAL COCHISE COUNTY UNTIL 615 PM... AT 555 PM TUCSON DOPPLER RADAR CONTINUED SHOW A SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF BENSON. THIS STORM HAS REMAINED NEARLY STATIONARY SINCE 530 PM AND IS PRODUCNG EXTREMELY HEAVY RAIN AND CONTINUOUS CLOUD-TO-GROUND LIGHTNING AS WELL AS WINDS IN EXCESS OF 50 MPH. THIS STORM IS ALSO PRODUCING EXTREMELY HEAVY RAIN WITH RADAR RAINFALL ESTIMATES OF 1.0 TO 2.0 INCHES IN LESS THAN AN HOUR. TRAVEL ALONG I-10 EAST OF BENSON AND HIGHWAY 80 NEAR ST. DAVID SHOULD BE AVOIDED UNTIL THIS STORM4 HAS DISSIPATED. MCCOLLUM
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 5:12 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 63 min |
| Sep 1, 6:21 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 54 min |
| Sep 1, 7:01 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 59 min |
| Sep 1, 7:22 PM MST | Flash Flood Warning | TWC | Cochise | 2 hr |
| Sep 1, 11:17 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 43 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.