Alert archive / Arizona / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 50, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 27, 1996, 6:05 PM MST for Pinal County, Arizona. It was in force for 55 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 27, 1996, 6:05 PM MST (01:05 UTC)
- Expired
- Aug 27, 1996, 7:00 PM MST
- In force
- 55 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Pinal County, AZ
The radar
The Phoenix radar (KIWA), 52 km from the middle of the area, began a volume at 01:08 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, 1.1 hours before the alert went out and 92 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
- 502 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 1956 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -32 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 27, 1:19 PM MST, 4 hours 46 minutes before
AZZ015>026-281200- SEVERE WEATHER OUTLOOK FOR THE SOUTHERN HALF OF ARIZONA NATIONAL WEATHER SERVICE PHOENIX AZ 115 PM MST TUE AUG 27 1996 ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING OVER SOUTHERN ARIZONA... THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND THIS EVENING ACROSS PORTIONS OF SOUTHERN ARIZONA. THE MAIN THREAT FROM THESE STORMS WILL BE HEAVY RAINFALL WHICH MAY LEAD TO SOME LOCALIZED FLASH FLOODING. STRONG STRAIGHT-LINE WINDS WILL ALSO BE POSSIBLE WITH SOME OF THE STRONGER THUNDERSTORMS. A FEW OF THE COUNTIES THAT MAY EXPERIENCE SEVERE WEATHER TODAY INCLUDE GREENLEE...GRAHAM...PINAL... SOUTHERN GILA...PIMA...SANTA CRUZ...AS WELL AS NORTHERN AND EASTERN SECTIONS OF MARICOPA COUNTY. THE REST OF MARICOPA COUNTY AS WELL AS LA PAZ AND YUMA COUNTIES MAY SEE SEVERE WEATHER LATER THIS EVENING. A STRONG SURGE OF LOW LEVEL MOISTURE FROM THE GULF OF CALIFORNIA CONTINUED TO SPREAD ACROSS SOUTHERN ARIZONA TODAY. DEWPOINT TEMPERATURES THIS MORNING ACROSS SOUTHERN SECTIONS OF THE STATE HAD CLIMBED INTO THE MID 60S AND LOWER 70S. THIS SURGE OF MOISTURE IS EXPECTED TO CONTINUE THROUGHOUT THE DAY...LEADING TO A GREATER POTENTIAL FOR SEVERE THUNDERSTORMS. THE STEERING FLOW WILL BE RELATIVELY LIGHT TODAY...BUT SHOULD BE FROM A FAVORABLE DIRECTION TO MOVE STORMS OFF THE HIGHER TERRAIN INTO LOWER DESERT LOCATIONS SUCH AS TUCSON AND PHOENIX. PERSONS IN SOUTHERN ARIZONA SHOULD KEEP A CLOSE EYE ON WEATHER DEVELOPMENTS TODAY AND THIS EVENING. LISTEN TO NOAA WEATHER RADIO OR LOCAL TELEVISION AND RADIO FOR LATEST STATEMENTS OR WARNINGS. JD
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 5:13 PM MST | Severe Thunderstorm Warning | PSR | Gila | 62 min |
| Aug 27, 7:17 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 53 min |
| Aug 27, 8:00 PM MST | Flash Flood Warning | PSR | Pinal | 60 min |
| Aug 27, 8:00 PM MST | Severe Thunderstorm Warning | PSR | Pinal | 60 min |
| Aug 27, 8:01 PM MST | Flash Flood Warning | PSR | Maricopa, Pinal | 74 min |
| Aug 27, 8:01 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 74 min |
| Aug 27, 8:30 PM MST | Flash Flood Warning | PSR | Maricopa | 60 min |
| Aug 27, 8:30 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 60 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1996Every severe thunderstorm warning in 1996
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.