Alert archive / Arizona / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 120, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Sep 3, 1996, 5:01 PM MST for Greenlee County, Arizona. It was in force for 59 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 3, 1996, 5:01 PM MST (00:01 UTC)
- Expired
- Sep 3, 1996, 6:00 PM MST
- In force
- 59 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Greenlee County, AZ
The radar
The Tucson radar (KEMX), 196 km from the middle of the area, began a volume at 00:04 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 3, 5:15 PM MST | Thunderstorm Wind | Clifton, AZ |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.0 hours before the alert went out and 194 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
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 severe thunderstorm 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 severe thunderstorm warning went out at Sep 3, 2:16 PM MST, 2 hours 45 minutes earlier.
Area forecast discussion, Sep 3, 2:16 PM MST, 2 hours 45 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 220 PM MST TUE SEP 3 1996 ADVECTION OF MOISTURE OUT OF THE GULF OF CA CONTINUES UNABATED. KYUX VWP SHOWS DEPTH OF SLY FLOW UP TO 6K FEET. THIS MEANS AMS OVR SE AZ TO REMAIN VERY MOIST AND UNSTABLE AS THIS MOIST FLOW SHOWS NO SIGN OF ABATING. ALSO MOISTURE FROM T.S. ELIDA JUST OFF THE SRN COAST OF BAJA CA MIGHT BECOME A PLAYER LATER IN THE WEEK AS UPR TROF OVR PAC NW COULD CAUSE ELIDA TO RECURVE INTO AZ. IF SO THIS COULD PRODUCE A WIDESPREAD HEAVY RAINFALL EVENT. SO THE REST OF THE WEEK LOOKS TO BE VERY ACTIVE. WITH TSTMS CAPABLE OF POPPING UP JUST ABOUT ANYWHERE DEPENDING ON WHERE OUTFLOW BOUNDRIES MOVE WILL BROADBRUSH THE FORECAST WITH SCT TSTM COVERAGE. TUS 3333. COLLINS
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 10:55 PM MST | Flash Flood Warning | TWC | Pima, Pinal | 2 hr |
| Sep 3, 11:20 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 55 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1996Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.