Alert archive / Arizona / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 48, NWS Phoenix, AZ

August 27, 1996Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 27, 1996, 3:40 PM MST for Maricopa County, Arizona. It was in force for 45 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
Aug 27, 1996, 3:40 PM MST (22:40 UTC)
Expired
Aug 27, 1996, 4:25 PM MST
In force
45 min
Issued by
NWS Phoenix, AZ
Area
Whole counties

County Maricopa County, AZ

What was reported inside it

TimeReportWhereRemark
Aug 27, 3:50 PM MSTHail 0.88Wickenburg, AZ

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 nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 10.7 hours before the alert went out and 198 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.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 1996-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 415 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 1996-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
415 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1407 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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, 2 hours 21 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

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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.