Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 74, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 29, 1996, 8:57 PM MST for Pinal County, Arizona. It was in force for 63 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
- Aug 29, 1996, 8:57 PM MST (03:57 UTC)
- Expired
- Aug 29, 1996, 10:00 PM MST
- In force
- 63 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pinal County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 4.0 hours before the alert went out and 92 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
- 868 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 2548 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 47 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Aug 29, 2:19 PM MST, 6 hours 38 minutes earlier.
Area forecast discussion, Aug 29, 2:19 PM MST, 6 hours 38 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 215 PM MST THU AUG 29 1996 RIM IS FIRING NICELY WITH TSTMS IN NRN ZNS024-025 MOVG TO THE SW. BUILDUPS HAVE BEEN SLOWER OVR HI TERRAIN FOR REST OF CWA...WE MAY HAVE TO WAIT FOR HELP FROM OUTFLOW FROM AFORE MENTIONED STORMS. THIS WOULD GIVE US A 9 PM EVENT INSTEAD OF A LATE AFTN EVENT. BASED ON EVERYTHING I'VE SEEN UP UNTIL NOW...WE SHUD BE ABLE TO SUPPORT AN EVENT LIKE THAT. PLENTY OF MSTR AND INSTBY IN 12Z SOUNDING...FAVORABLE FLOW...I DON'T THINK ANYTHING HAS HAPPENED TO CHG THAT. WILL GO AHD AND TAILOR FCST FOR RIM OUTFLOW SCENARIO. STG INSTBY AND UPR LVL SUPPORT FOR POTENTIAL SVR STORMS...HANDLED WELL BY SOUTHERN ARIZONA SEVERE WEATHER OUTLOOK (SPSPHX). HVY RAIN ANOTHER CONCERN WITH STORMS THIS AFTN / TNGT...WITH POTENTIAL LCL FLOODING. HI CNTR W OF NRN AZ...SHUD STAY THERE A FEW DAYS. THIS WOULD BE LONG ENUF IN MANY INSTANCES TO EVEN BRING IN SOME DRYING FOR SRN PTNS. RIGHT NOW I AGREE THAT LWR LVL MSTR SHUD HANG ON TO KEEP US GOING. WE COULD STILL END UP WITH LESS COVERAGE FOR THE 2ND HALF OF THE HOLIDAY WEEKEND...SOMETHING TO WATCH. TUS 4232. MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 6:16 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 59 min |
| Aug 29, 7:11 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 64 min |
| Aug 29, 7:37 PM MST | Flash Flood Warning | TWC | Pinal | 68 min |
| Aug 29, 7:37 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 68 min |
| Aug 29, 7:50 PM MST | Flash Flood Warning | TWC | Pima | 55 min |
| Aug 29, 7:50 PM MST | Severe Thunderstorm Warning | TWC | Pima | 55 min |
| Aug 29, 8:57 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 63 min |
| Aug 29, 9:39 PM MST | Flash Flood Warning | TWC | Pima | 66 min |
| Aug 29, 9:39 PM MST | Severe Thunderstorm Warning | TWC | Pima | 66 min |
| Aug 29, 10:32 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 58 min |
| Aug 29, 10:47 PM MST | Severe Thunderstorm Warning | TWC | Pima | 43 min |
| Aug 29, 11:21 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 69 min |
| Aug 30, 12:11 AM MST | Flash Flood Warning | TWC | Pima | 2 hr |
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.