Alert archive / Arizona / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 12, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 5, 1996, 2:38 PM MST for Pima County, Santa Cruz County, Arizona. It was in force for 67 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
- Jul 5, 1996, 2:38 PM MST (21:38 UTC)
- Expired
- Jul 5, 1996, 3:45 PM MST
- In force
- 67 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Pima County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 66 km from the middle of the area, began a volume at 21:41 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 |
|---|---|---|---|
| Jul 5, 2:40 PM MST | Thunderstorm Wind 50 | Arivaca, 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 12:00Z, 9.6 hours before the alert went out and 56 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
- 617 J/kg
- Mixed-layer CIN
- -201 J/kg
- Mixed-layer LCL
- 2123 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 14 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 Jul 5, 2:23 PM MST, 15 minutes earlier.
Area forecast discussion, Jul 5, 2:23 PM MST, 15 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 220 PM MST FRI JUL 5 1996 SAT...H5 HI MOVS BACK TO 4 CORNERS AREA WITH E-SELY WINDS OVR AREA. NGM NOT BLDG HI AS STG AS ETA. H7 HI NR TUS WITH LGT NLY WINDS. MEAN RH 40-50 PCT AND SEE NO BIG CHG IN LOW LVL MSTR. MOS DEW PTS AND POPS SIMILAR TO TDA. ETA KEEPS BIG CAPES S OF BORDER...WITH LESS THAN 1000 ACRS CWA. SO WILL KEEP CURRENT POPS. SUN...AVN KEEPS UPR HI NR 4 CORNERS dWITH ELY WINDS AND MEAN RH 30 PCT. MOS TRENDG FOR SLGHTLY LWR POPS. WILL KEEP SCT-WDLY SCT TSTMS ACRS CWA.
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 5:07 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Santa Cruz | 53 min |
| Jul 5, 1:28 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 47 min |
| Jul 5, 3:45 PM MST | Severe Thunderstorm Warning | TWC | Pima | 60 min |
| Jul 5, 3:56 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 49 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.