Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 60, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 19, 1996, 5:28 PM MST for Pima 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
- Aug 19, 1996, 5:28 PM MST (00:28 UTC)
- Expired
- Aug 19, 1996, 7:30 PM MST
- In force
- 2 hr
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.5 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
- 278 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 2124 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 5 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 200025 FFWTUS AZC019-200230- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 528 PM MST MON AUG 19 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 730 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ARIZONA ...WESTERN PIMA COUNTY AT 525 PM MST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM MOVING INTO WESTERN PIMA COUNTY OVER O~RGAN PIPE CACTUS NATIONAL MONUMENT. THIS STORM WILL LIKELY PRODUCE VERY HEAVY RAIN AND FLASH FLOODING ALONG HIGHWAY 85 BETWEEN LUKEVILLE AND WHY. MOTORISTS SHOULD AVOID DRIVING THROUGH FLOODED ROADWAY CROSSINGS. BRYANT/HOLBROOK
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 19, 2:32 PM MST, 2 hours 56 minutes earlier.
Area forecast discussion, Aug 19, 2:32 PM MST, 2 hours 56 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 230 PM MST MON AUG 19 1996 CLDS OVR CNTRL/ERN PIMA CNTY SLOW TO DISSIPATE TODAY...AND MAY BE THE LIMITING FACTOR FOR HVY RAIN/SVR CONVECTION OVER ZN 23. BUT REMAINDER OF SERN AZ IN FFA STARTING TO SEE CONVECTION DEVELOP OVR THE HIER TERRAIN. SLOW MOVING STORMS SHOULD PROVIDE GOOD POTENTIAL FOR HVY RAIN THERE THIS EVENING. INTERESTING TO NOTE THE CU STREAMING NWRD INTO WRN PIMA COUNTY FROM GULF OF CA...LOW LVL MOISTURE ADVECTION CONTINUES INTO SWRN PART OF STATE. TROF MOVING THRU THE PAC NW ATTM HELPING TO REINFORCE WLY/SWLY FLOW INTO WRN PART OF STATE...BUT ETA MODEL KEEPS ELY/SELY MID LVL FLOW OVER THE SE. ETA SHOWS H7 DEFORMATION ZN FM NW TO SE AZ AT F36...AND EXPECT WARMER SIDE OF SAID DEFORMATION ZN TO HELP PROVIDE THE SYNOPTIC FOCUS FOR CONVECTION TUES AFTERNOON IN THE SERN THIRD OF STATE. CURIOUS TO NOTE THAT NGM MOS THUNDERSTORM PROBABILITY QUITE HIGH IN THE SE TUESDAY AFTERNOON...SO WILL KEEP WDLY SCT/SCT AFTERNOON/EVENING TRW FCST AGAIN TUES. DO NOT SEE SIGNIFICANT CHANGE IN THE SE FOR WEDNESDAY...AND EXTENDED MODELS SHOW UPR RDG BUILDING WESTWARD AGAIN BY END OF WEEK FOR CONTINUED MONSOON FCST IN THE SE. TUS 3232. DRB
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:45 PM MST | Flash Flood Warning | TWC | Pinal | 75 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.