Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 14, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jun 6, 1997, 1:58 PM MST for Cochise County, Arizona. It was in force for 32 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 6, 1997, 1:58 PM MST (20:58 UTC)
- Expired
- Jun 6, 1997, 2:30 PM MST
- In force
- 32 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Cochise County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 6, 2:03 PM MST | Hail 0.75 | Pearce, AZ | A severe thunderstorm dropped 3/4 inch hail. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 6, 12:00 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 9.0 hours before the alert went out and 113 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3313 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 265 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 062058 SVRTUS AZC003-062130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 158 PM MST FRI JUN 6 1997 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEASTERN ARIZONA ...CENTRAL COCHISE COUNTY AT 157 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 26 MILES SOUTH OF WILLCOX OR 5 NMILES SOUTH SOUTHEAST OF SUNSITES MOVING NORTH AT 40 MPH. SOME LOCATIONS IN THE PATH OF THIS STORM ARE... SUNSITES BY 200 PM MST COCHISE BY 216 PM MST
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 Jun 6, 9:59 AM MST, 3 hours 59 minutes earlier.
Area forecast discussion, Jun 6, 9:59 AM MST, 3 hours 59 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 945 AM MST FRI JUN 6 1997 THINGS ARE SETTING UP FOR PRETTY ACTIVE DAY...STORMS ALREADY POPPING IN CONV ZONE IN ERN PART OF STATE. MODIFIED SOUNDING THIS MORNING SHOWS A CAPE OVR 1000 THIS AFTN AND HELICITY OVR 200. POTENTIAL FOR SUPERCELL DEVELOPMENT IS THERE. WNDS WILL ASO BE A PROBLEM AND HAVE ALREADY ISSUED WND ADVSY TILL 700 PM. VAD AND SOUNDINGS SHOW WNDS TO NR 45 KTS AT 6K AND SEE NO PROBLEM MIXING THIS DOWN TO SFC. BIG QUESTION IS WHERE BEST STORMS WILL FORM...AND HOW MUCH HEATING/MSTR IS VAIALBLE. HOLBROOK 344. TUS...END ADVSY ALL ZONES XCPT 26 FROM 100 PM TO 700 PM MST.
In the hours before
Special weather statement, Jun 6, 10:20 AM MST, 3 hours 38 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1016 AM MST FRI JUN 6 1997 AZZ019-026>030-062320- ...ACTIVE THUNDERSTORM DAY SHAPING UP FOR SOUTHEAST ARIZONA... A STRONG STORM SYSTEM HAS MOVED INTO THE NORTHERN BAJA THIS MORNING SETTING UP SOUTHEAST ARIZONA FOR A ROUND OF THUNDERSTORMS TODAY. THE STORM SYSTEM COMBINED WITH MOISTURE MOVING IN FROM MEXICO HAS ALREADY GENERATED THUNDERSTORM OVER COCHISE...GRAHAM...AND GREENLEE COUNTIES. THESE THUNDERSTORMS ARE MOVING RAPIDLY NORTH AT NEAR 40 MPH. DURING THE REST OF THE MORNING AND AFTERNOON THUNDERSTORMS WILL DEVELOP OVER THE REMAINDER OF SOUTHEAST ARIZONA. THESE STORMS HAVE THE POTENTIAL TO BECOME SEVERE AND PRODUCE STRON&G GUSTY WINDS AND LARGE HAIL. RESIDENTS OF SOUTHEAST ARIZONA SHOULD BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. STAY TUNED FOR LATER STATEMENTS AND OR WARNINGS. HOLBROOK
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 12:37 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 33 min |
| Jun 6, 2:59 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 61 min |
| Jun 6, 4:58 PM MST | Severe Thunderstorm Warning | TWC | Graham | 47 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.