Alert archive / Arizona / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 101, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 28, 1996, 10:55 PM MST for Graham County, Arizona. It was in force for 65 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 28, 1996, 10:55 PM MST (05:55 UTC)
- Expired
- Aug 29, 1996, 12:00 AM MST
- In force
- 65 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Graham County, AZ
The radar
The Tucson radar (KEMX), 135 km from the middle of the area, began a volume at 05:59 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.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 5.9 hours before the alert went out and 127 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
- 382 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 2411 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 60 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 290554 SVRTUS AZC009-290700- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 1055 PM MST WED AUG 28 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST ARIZONA ...NORTHWESTERN GRAHAM COUNTY AT 1055 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER EXTREME NORTHWEST GRAHAM COUNTY. THIS STORM WAS MOVING AT 20 MPH TO THE SOUTHWEST TOWARD SAN CARLOS RESERVOIR. BOATERS AND CAMPERS AT THE RESERVOIR SHOULD PREPARE FOR WINDS IN EXCESS OF 57 MPH... FREQUENT LIGHTNING...HEAVY RAIN...AND LARGE HAIL. BRYANT :
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 Aug 28, 8:47 PM MST, 2 hours 8 minutes earlier.
Area forecast discussion, Aug 28, 8:47 PM MST, 2 hours 8 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 845 PM MST WED AUG 28 1996 STRONG THUNDERSTORMS BEARING DOWN ON TUS ATTM AND THEY LOOK LIKE THEY MIGHT GO SEVERE SO WILL MAKE THIS SHORT. ACTIVITY HAS DIED OUT OVER ZONES 24-26 SO WILL DROP SHOWERS/TSTMS THERE FOR TONIGHT. WILL KEEP ACTIVITY IN OTHER ZONES UNTIL MIDNIGHT EXCEPT ZONE 21 WHERE TSTMS COULD GO ON THROUGH THE EARLY MORNING HOURS. QUICK GLANCE AT NEW MODELS SHOW UPlPER HIGH TO REMAIN OVER NWRN AZ AND SRN NV WITH A SLIGHT DRYING TREND BUT STILL ENOUGH MSTR FOR WDLY SCT/SCT AFTN/EVE TSTMS. TUS 5342. COLLINS
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 5:30 PM MST | Severe Thunderstorm Warning | TWC | Graham, Greenlee | 60 min |
| Aug 28, 6:31 PM MST | Severe Thunderstorm Warning | TWC | Graham | 44 min |
| Aug 28, 11:19 PM MST | Severe Thunderstorm Warning | TWC | Gila, Pinal | 56 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.