Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 42, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 7, 1997, 4:33 PM MST for Pima County, Pinal County, Arizona. It was in force for 47 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, 4:33 PM MST (23:33 UTC)
- Expired
- Aug 7, 1997, 5:20 PM MST
- In force
- 47 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
Counties Pima County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 88 km from the middle of the area, began a volume at 23:37 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 text
As transmitted, in the capitals the NWS used until 2016.
728 WUUS1 KTUS 072336 RRA SVRTUS AZC019-021-080020- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 433 PM MST THU AUG 7 1997 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 520 PM MST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL ARIZONA... ...NORTHEAST PIMA COUNTY. AT 430 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH EXTREMELY HEAVY RAINFALL DEVELOPING OVER NORTHEAST TUCSON MOVING SOUTHWEST AT 10 MPH. THIS STORM WILL AFFECT CENTRAL AND EAST TUCSON BETWEEN 430 PM AND 500 PM. 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 7, 2:41 PM MST, 1 hour 52 minutes earlier.
Area forecast discussion, Aug 7, 2:41 PM MST, 1 hour 52 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
In the hours before
Special weather statement, Aug 7, 12:01 PM MST, 4 hours 32 minutes before
AZZ019-026>030-072300-
SPECIAL WEATHER STATEMENT...SOUTHEAST ARIZONA CONVECTIVE OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
1145 AM MST THU AUG 7 1997...THIS PRODUCT IS NOT UPDATED
AREAL PROBABILITY RAIN GREATER THAN STORM
COVERAGE OF SEVERE 1.00 2.00 MOTION
COCHISE 40 30 40 15 SW 15
GRAHAM 30 20 30 5 S 15
GREENLEE 35 10 25 5 S 15
TUCSON/ERN PIMA 35 30 35 10 SW 15
TOHONO OODHAM 25 30 25 5 SW 15
WESTERN PIMA 15 20 15 0 SW 12
SOUTHEAST PINAL 25 20 25 5 SW 15
SANTA CRUZ 40 35 40 15 SW 15
SYNOPSIS...
ABUNDANT LOW LVL MOISTURE CONTINUES TO MOVE IN ALONG WITH BETTER
DAYTIME HEATING FOR A LESS STABLE ATMOSPHERE. SHOULD SEE BETTER
AFTERNOON AND EVENING THUNDERSTORM DEVELOPMENT THAN YESTERDAY...
WITH SOME LOCATIONS STILL DELAYED DUE TO SLOWER HEATING. SOME
STORMS WILL DEVELOP TO SEVERE LEVELS. RAINFALL AMOUNTS FROM THESE
STORMS WILL GENERALLY BE AT OR BELOW 1.00 INCH...WITH HIGHER
ACCUMULATIONS ASSOCIATED WITH THE STRONGEST STORMS.
*****************************************************************
KEY...
AREAL COVERAGE - PERCENT OF COUNTY OR AREA THAT WILL EXPERIENCE
THUNDERSTORMS
PROB OF SEVERE - THE PROBABILITY THAT ANY ONE OF THE STORMS WILL
REACH SEVERE LEVELS (DAMAGING WIND AND/OR
LARGE HAIL)
RAIN GRTR THAN - THE PROBABILITY THAT ANY ONE OF THE STORMS WILL
PRODUCE RAIN EXCEEDING 1 INCH OR 2 INCHES IN
ANY LOCATION
STORM MOTION - GENERAL DIRECTION TO WHICH THE STORMS WILL
LIKELY MOVE AND SPEED IN MPH
NOTE...
VALID TIME IS FROM 12 NOON TO 12 MIDNIGHT OF THE DAY OF ISSUANCE
THIS PRODUCT IS NOT TO BE USED IN PLACE OF SEVERE THUNDERSTORM OR
FLASH FLOOD WARNINGS OR WATCHES. THIS PRODUCT IS ONLY USED FOR
OUTLOOK PURPOSES.
END/MEYERSpecial weather statement, Aug 7, 2:24 PM MST, 2 hours 9 minutes before
AZZ019-026>030-072300-
SPECIAL WEATHER STATEMENT...SOUTHEAST ARIZONA CONVECTIVE OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
1145 AM MST THU AUG 7 1997...THIS PRODUCT IS NOT UPDATED
AREAL PROBABILITY RAIN GREATER THAN STORM
COVERAGE OF SEVERE 1.00 2.00 MOTION
COCHISE 40 30 40 15 SW 15
GRAHAM 30 20 30 5 S 15
GREENLEE 35 10 25 5 S 15
TUCSON/ERN PIMA 35 30 35 10 SW 15
TOHONO OODHAM 25 30 25 5 SW 15
WESTERN PIMA 15 20 15 0 SW 12
SOUTHEAST PINAL 25 20 25 5 SW 15
SANTA CRUZ 40 35 40 15 SW 15
SYNOPSIS...
ABUNDANT LOW LVL MOISTURE CONTINUES TO MOVE IN ALONG WITH BETTER
DAYTIME HEATING FOR A LESS STABLE ATMOSPHERE. SHOULD SEE BETTER
AFTERNOON AND EVENING THUNDERSTORM DEVELOPMENT THAN YESTERDAY...
WITH SOME LOCATIONS STILL DELAYED DUE TO SLOWER HEATING. SOME
STORMS WILL DEVELOP TO SEVERE LEVELS. RAINFALL AMOUNTS FROM THESE
STORMS WILL GENERALLY BE AT OR BELOW 1.00 INCH...WITH HIGHER
ACCUMULATIONS ASSOCIATED WITH THE STRONGEST STORMS.
*****************************************************************
KEY...
AREAL COVERAGE - PERCENT OF COUNTY OR AREA THAT WILL EXPERIENCE
THUNDERSTORMS
PROB OF SEVERE - THE PROBABILITY THAT ANY ONE OF THE STORMS WILL
REACH SEVERE LEVELS (DAMAGING WIND AND/OR
LARGE HAIL)
RAIN GRTR THAN - THE PROBABILITY THAT ANY ONE OF THE STORMS WILL
PRODUCE RAIN EXCEEDING 1 INCH OR 2 INCHES IN
ANY LOCATION
STORM MOTION - GENERAL DIRECTION TO WHICH THE STORMS WILL
LIKELY MOVE AND SPEED IN MPH
NOTE...
VALID TIME IS FROM 12 NOON TO 12 MIDNIGHT OF THE DAY OF ISSUANCE
THIS PRODUCT IS NOT TO BE USED IN PLACE OF SEVERE THUNDERSTORM OR
FLASH FLOOD WARNINGS OR WATCHES. THIS PRODUCT IS ONLY USED FOR
OUTLOOK PURPOSES.
END/MEYERThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 4:38 PM MST | Severe Thunderstorm Warning | TWC | Pima | 62 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; radar from the NEXRAD Level II archive.