Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 29, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 28, 1997, 7:16 PM MST for Santa Cruz County, Arizona. It was in force for 29 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
- Jul 28, 1997, 7:16 PM MST (02:16 UTC)
- Expired
- Jul 28, 1997, 7:45 PM MST
- In force
- 29 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 46 km from the middle of the area, began a volume at 02:18 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, 2.3 hours before the alert went out and 72 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
- 728 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 2568 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 290216 RRA SVRTUS AZC023-290245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 716 PM MST MON JUL 28 1997 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 745 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHERN ARIZONA ...NORTHERN SANTA CRUZ COUNTY AT 710 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES NORTHWEST OF PATAGONI@A OR 9 MILES EAST NORTHEAST OF TUBAC MOVING EAST NORTHEAST AT 10 MPH. THIS STORM WAS CAPABLE OF PRODUCING WIND GUSTS TO 60 MPH AND ONE INCH HAIL. OKULSKI
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 28, 5:17 PM MST, 1 hour 59 minutes earlier.
Area forecast discussion, Jul 28, 5:17 PM MST, 1 hour 59 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION...RETRANSMISSION NATIONAL WEATHER SERVICE TUCSON AZ 230 PM MST MON JUL 28 1997 STORMS DEVELOPED ON WRN EDGE OF DEEP MSTR AND MOVG NE. BEST REFLECTIVTY NEAR THE STORM BASE AND WE HAVE SEEN AN INCH OR SO WITH HEAVIEST STORMS. WRN AND CNTRL PIMA AND ALL BUT EXTREME ERN PINAL ARE DRY AND XCPT FOR A MTN TSTM OR TWO WILL NOT SEE MUCH. TUS AND REST OF AREA WILL SEE STORMS THRU EARLY EVENING. THERE STILL HAVING TROUBLE GETTING AWAY FROM MTNS WITH ANY KIND OF PRECIP BUT AS AFTN WEARS ON WE MAY BE ABLE TO GET VALLEYS WET. WITH CA LOW MOVG NWD RIDGE BUILDS BACK IN QUICKLY. XPCT ERN ZONES TO REMAIN FAIRLY ACTIVE ON TUE BUT BACK TO MORE ACTIVE MONSOON BY WED. MAY EVEN SEE AN UPSWING IN ACTIVITY TUE EVENING IN ZN 28. THERE IS STILL THE PROBLEM OF TO MANY MID CLOUDS IN THE AREA ON WED BUT IF MSTR FCST BY ETA RATHER THAN NGM VERIFIES THEN TSTM POTENTIAL INCREASES. TEMPS SHOULD BE UP A LITTLE ON WTUE AND DOWN SOME ON WED...ALL CLOUD COVER DEPENDENT. TUS 3234. HOLBROOK. TUS...NONE
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 4:00 PM MST | Flash Flood Warning | TWC | Santa Cruz | 90 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1997Every severe thunderstorm warning in 1997
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.