Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 44, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 7, 1997, 5:14 PM MST for Gila County, Pinal 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, 5:14 PM MST (00:14 UTC)
- Expired
- Aug 7, 1997, 6:15 PM MST
- In force
- 61 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
Counties Gila County, AZ, Pinal County, AZ
The radar
The Phoenix radar (KIWA), 55 km from the middle of the area, began a volume at 00:17 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, 0.2 hours before the alert went out and 132 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Aug 7, 12:55 PM MST, 4 hours 19 minutes before
AZZ020>025-CAZ030>033-072145- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 1250 PM MST/PDT THU AUG 7 1997 ...THUNDERSTORMS...A FEW SEVERE...ARE POSSIBLE FOR SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND FAR SOUTHEAST CALIFORNIA LATER THIS AFTERNOON AND DURING THE EVENING HOURS... THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS SOUTH-CENTRAL AND SOUTHWEST ARIZONA...AND FAR SOUTHEAST CALIFORNIA. THERE WILL BE A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA. SEVERE THUNDERSTORMS IMPLY...DAMAGING WINDS IN EXCESS OF 58 MPH ...AND/OR...HAIL...THREE-QUARTERS OF AN INCH OR MORE IN DIAMETER. AT THIS TIME...IT APPEARS THE OUTLOOK AREA MOST AT RISK FOR SEVERE WEATHER WILL BE SOUTHWEST ARIZONA...AND FAR SOUTHEAST CALIFORNIA. THE PRIMARY THREAT FROM SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING WILL BE DAMAGING WINDS. THE STORMS COULD ALSO BE ACCOMPANIED BY LOCALLY HEAVY RAINFALL...AND FREQUENT AND DEADLY LIGHTNING. AN UPDATED SEVERE WEATHER OUTLOOK FOR THE PHOENIX NWS AREA OF RESPONSIBILITY WILL BE ISSUED AT 245 PM MST/PDT THIS AFTERNOON. ..................................................................... THE OUTLOOK AREA INCLUDES THE FOLLOWING COUNTIES... IN ARIZONA IN CALIFORNIA MARICOPA YUMA IMPERIAL NORTHWEST PINAL LA PAZ CENTRAL AND EASTERN RIVERSIDE SOUTHERN GILA FRANJEVIC
Special weather statement, Aug 7, 2:53 PM MST, 2 hours 21 minutes before
AZZ020>025-CAZ030>033-080130- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 255 PM MST/PDT THU AUG 7 1997 ...THUNDERSTORMS...A FEW SEVERE...ARE POSSIBLE FOR SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND FAR SOUTHEAST CALIFORNIA THIS AFTERNOON AND EVENING. STRONG THUNDERSTORMS WERE DEVELOPING OVER THE HIGHER TERRAIN NORTH AND NORTHEAST OF THE OUTLOOK AREA. THE THUNDERSTORMS WILL MOVE SOUTH-SOUTHWEST FROM THE HIGHER TERRAIN TO SOUTH-CENTRAL AND SOUTHWEST ARIZONA...AND EVENTUALLY FAR SOUTHEAST CALIFORNIA. THE THUNDERSTORMS WILL CONTINUE TO INTENSIFY THIS AFTERNOON... WITH A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE ENTIRE OUTLOOK AREA LATER THIS AFTERNOON AND EVENING. SEVERE THUNDERSTORMS IMPLY...DAMAGING WINDS IN EXCESS OF 58 MPH ...AND/OR...HAIL...THREE-QUARTERS OF AN INCH OR MORE IN DIAMETER. THE PRIMARY THREAT FROM SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING WILL BE DAMAGING WINDS. THE STORMS COULD ALSO BE ACCOMPANIED BY LOCALLY HEAVY RAINFALL...AND FREQUENT AND DEADLY LIGHTNING. ..................................................................... THE OUTLOOK AREA INCLUDES THE FOLLOWING COUNTIES... IN ARIZONA n IN CALIFORNIA MARICOPA YUMA IMPERIAL NORTHWEST PINAL LA PAZ CENTRAL AND EASTERN RIVERSIDE SOUTHERN GILA FRANJEVIC
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:28 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 87 min |
| Aug 7, 6:38 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 62 min |
| Aug 7, 6:56 PM MST | Severe Thunderstorm Warning | PSR | La Paz, Yuma | 59 min |
| Aug 8, 4:25 PM MST | Severe Thunderstorm Warning | PSR | Gila | 65 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.