Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 47, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 7, 1997, 8:49 PM MST for Pima County, Arizona. It was in force for 61 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 7, 1997, 8:49 PM MST (03:49 UTC)
- Expired
- Aug 7, 1997, 9:50 PM MST
- In force
- 61 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 3.8 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
- 923 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 2796 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
964 WUUS1 KTUS 080352 RRA SVRTUS AZC019-080450- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 849 PM MST THU AUG 7 1997 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 950 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHERN ARIZONA ...CENTRAL PIMA COUNTY AT 847 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11 MILES EAST NORTHEAST OF SANTA ROSA ON THE TOHONO OODHAM NATION. THIS STORM WAS MOVING WEST AT 10 MPH.
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 7, 2:41 PM MST, 6 hours 8 minutes earlier.
Area forecast discussion, Aug 7, 2:41 PM MST, 6 hours 8 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 230 PM MST THU AUG 7 1997 TSTMS DVLPG OVR MTNS THROUGHOUT ERN HALF OF CWFA...SOME LOOKING ON THE STRONG SIDE (SEVERE JUST S OF NOGALES). LWR ATMOSPHERE VERY SUPPORTIVE IN PROPAGATION OF OUTFLOW...SOMETHING TO WATCH FOR THIS EVE. CONVECTIVE TEMPS BARELY REACHED MOST AREAS. WILL IT RAIN? MAYBE IT WILL AND MAYBE IT WON'T. RIGHT NOW I'M GOING FOR AN ACTIVE EVENING WITH STORMS COOKING UP THROUGH LATE AFTERNOON AND SUSTAINED AFTER SUNSET DUE TO AFOREMENTIONED LWR ATMOSPHERE. SHOULD BE NICE THETA-E AIR OUT THERE WITH FRIENDLY CAPE VALUES. BUSY TIME FOR THE NEXT SHIFT. COULD BE WASTED CHANCE IF ABSOLUTELY NO MORE HEATING...JUS T ANOTHER DEGREE OR SO. SUFFICIENT LWR LVL MSTR RMNS OVR SE AZ FOR AFTN TSTMS WITH SUFFICIENT HEATING. DETAILS BEING LEACHED OUT 24 HRS AT A TIME. TUS 4343. MEYER TUS...NONE
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:44 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
| Aug 7, 6:40 PM MST | Severe Thunderstorm Warning | TWC | Pima | 60 min |
| Aug 7, 7:43 PM MST | Severe Thunderstorm Warning | TWC | Pima | 62 min |
| Aug 8, 12:38 PM MST | Severe Thunderstorm Warning | TWC | Greenlee | 47 min |
| Aug 8, 1:32 PM MST | Severe Thunderstorm Warning | TWC | Greenlee | 63 min |
| Aug 8, 1:41 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Santa Cruz | 59 min |
| Aug 8, 2:53 PM MST | Flash Flood Warning | TWC | Greenlee | 62 min |
| Aug 8, 2:53 PM MST | Severe Thunderstorm Warning | TWC | Greenlee | 62 min |
| Aug 8, 2:59 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 61 min |
| Aug 8, 3:40 PM MST | Severe Thunderstorm Warning | TWC | Graham | 50 min |
| Aug 8, 3:46 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 49 min |
| Aug 8, 3:59 PM MST | Severe Thunderstorm Warning | TWC | Pima | 61 min |
| Aug 8, 4:37 PM MST | Severe Thunderstorm Warning | TWC | Pima | 48 min |
| Aug 8, 4:51 PM MST | Flash Flood Warning | TWC | Pima | 34 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.