Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 49, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 8, 1997, 1:32 PM MST for Greenlee County, Arizona. It was in force for 63 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 8, 1997, 1:32 PM MST (20:32 UTC)
- Expired
- Aug 8, 1997, 2:35 PM MST
- In force
- 63 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Greenlee County, AZ
The radar
The Tucson radar (KEMX), 196 km from the middle of the area, began a volume at 20:35 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 12:00Z, 8.5 hours before the alert went out and 194 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
- 842 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 1691 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -33 m²/s²
- 0-3 km storm-relative helicity
- 10 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 082032 RRA SVRTUS AZC011-082135- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 132 PM MST FRI AUG 8 1997 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 235 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEASTERN ARIZONA ...CENTRAL GREENLEE COUNTY AT 128 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH EXTREMELY HEAVY RAINFALL 9 MILES NORTH OF CLIFTON MOVING SOUTH AT 10 MPH. SOME LOCATIONS IN THE PATH OF THIS STORM ARE... MORENCI BY 2 PM MST CLIFTON BY 2 PM MST 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 8, 11:20 AM MST, 2 hours 12 minutes earlier.
Area forecast discussion, Aug 8, 11:20 AM MST, 2 hours 12 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 925 AM MST FRI AUG 8 1997 68 DEWPT AT TUS...PRETTY HEALTHY. STG LOW LVL FLOW OFF THE GLFCAL CONTS THRU YUM (YUM DEWPT 77)...LOW LVL KEMX VWP SHOWING NICE CIRCULATION BACK OFF THE DESERTS. 12Z TUS RAOB SIMILAR TO YDA WITH MORE MSTR. CI FROM EVE STORMS FLEEING ERYR TDA WITH SOME APPARENT DIFFLUENCE ALF...MORE SUN. COOLER H5 AIR WRAPPING ARND HI TO THE NW MOVG TWD OUR CWFA...FLG AT -08C THIS MRNG. HOW HOT WILL IT GET ONCE AGAIN THE QUESTION OF THE DAY. I FEEL LIKE A RABBIT STARING DOWN A PAIR OF HEADLIGHTS ON THE HIGHWAY. WITH LWR LVL MSTR WE MAY AGN SEE A DELAY IN SOME AREAS...ESPECIALLY HVY PRECIP AREAS FROM YDA...BUT OVERALL I'M THINKING OF A VERY ACTIVE AFTN/EVE. YDA NOT TOO BAD...TDA MAYBE EVEN BETTER. AGN A CONCERN FOR SEVERE WX/HVY PRECIP POTENTIAL. CURRENT FCST HITS THIS PRETTY WELL. TUS 343. MEYER TUS...NONE
In the hours before
Special weather statement, Aug 8, 11:36 AM MST, 1 hour 56 minutes before
AZZ019-026>030-082300-
SPECIAL WEATHER STATEMENT...SOUTHEAST ARIZONA CONVECTIVE OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
1145 AM MST FRI AUG 8 1997...THIS PRODUCT IS NOT UPDATED
AREAL PROBABILITY RAIN GREATER THAN STORM
COVERAGE OF SEVERE 1.00 2.00 MOTION
COCHISE 40 30 40 20 S 8
GRAHAM 40 25 40 20 S 8
GREENLEE 40 10 40 10 S 8
TUCSON/ERN PIMA 40 40 50 25 SW 10
TOHONO OODHAM 30 40 30 15 SW 10
WESTERN PIMA 25 30 25 5 W 10
SOUTHEAST PINAL 30 30 30 10 SW 10
SANTA CRUZ 60 40 50 25 SW 10
SYNOPSIS...
ATMOSPHERE IS LOADED WITH MOISTURE. ENOUGH HEATING FOR VERY
UNSTABLE AFTERNOON AND EVENING. POTENTIAL FOR A VARIETY OF
ACTIVITY WITH HEAVY RAIN...STRONG WINDS...AND HAIL.
*****************************************************************
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 8, 11:59 AM MST, 1 hour 33 minutes before
AZZ019-026>030-082300-
SPECIAL WEATHER STATEMENT...SOUTHEAST ARIZONA CONVECTIVE OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
1145 AM MST FRI AUG 8 1997...THIS PRODUCT IS NOT UPDATED
AREAL PROBABILITY RAIN GREATER THAN STORM
COVERAGE OF SEVERE 1.00 2.00 MOTION
COCHISE 40 30 40 20 S 8
GRAHAM 40 25 40 20 S 8
GREENLEE 40 10 40 10 S 8
TUCSON/ERN PIMA 40 40 50 25 SW 10
TOHONO OODHAM 30 40 30 15 SW 10
WESTERN PIMA 25 30 25 5 W 10
SOUTHEAST PINAL 30 30 30 10 SW 10
SANTA CRUZ 60 40 50 25 SW 10
SYNOPSIS...
ATMOSPHERE IS LOADED WITH MOISTURE. ENOUGH HEATING FOR VERY
UNSTABLE AFTERNOON AND EVENING. POTENTIAL FOR A VARIETY OF
ACTIVITY WITH HEAVY RAIN...STRONG WINDS...AND HAIL.
*****************************************************************
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, 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 7, 8:49 PM MST | Severe Thunderstorm Warning | TWC | Pima | 61 min |
| Aug 8, 12:38 PM MST | Severe Thunderstorm Warning | TWC | Greenlee | 47 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; radar from the NEXRAD Level II archive.