Alert archive / Arizona / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 21, NWS Phoenix, AZ

September 12, 1993Yavapai County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 12, 1993, 6:30 PM MST for Yavapai County, Arizona. It was in force for 90 min.

The area

The counties it named.

The facts

Issued
Sep 12, 1993, 6:30 PM MST (01:30 UTC)
Expired
Sep 12, 1993, 8:00 PM MST
In force
90 min
Issued by
NWS Phoenix, AZ
Area
Whole counties

County Yavapai County, AZ

The nearest sounding before it

Winslow (Autob), AZ (KINW), launched 00:00Z, 1.5 hours before the alert went out and 176 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, Winslow (Autob), AZ at 00:00Z on 1993-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 272 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, Winslow (Autob), AZ at 00:00Z on 1993-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 square meters per square second.193958Sfc1 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
272 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
2288 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
33 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.

The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 12, 5:17 PM MSTFlash Flood WarningPSRPinal73 min
Sep 12, 5:17 PM MSTSevere Thunderstorm WarningPSRPinal73 min
Sep 12, 6:30 PM MSTFlash Flood WarningPSRMaricopa, Pinal90 min
Sep 12, 6:30 PM MSTFlash Flood WarningPSRYavapai90 min
Sep 12, 6:30 PM MSTSevere Thunderstorm WarningPSRMaricopa, Pinal90 min
Sep 12, 8:01 PM MSTFlash Flood WarningPSRYavapai89 min
Sep 12, 8:01 PM MSTFlash Flood WarningPSRMaricopa89 min
Sep 12, 8:01 PM MSTSevere Thunderstorm WarningPSRYavapai89 min
Sep 12, 8:01 PM MSTSevere Thunderstorm WarningPSRMaricopa89 min
Sep 12, 9:31 PM MSTFlash Flood WarningPSRYavapai89 min
Sep 12, 9:31 PM MSTFlash Flood WarningPSRMaricopa89 min
Sep 12, 9:31 PM MSTSevere Thunderstorm WarningPSRYavapai
Sep 12, 9:31 PM MSTSevere Thunderstorm WarningPSRMaricopa
Sep 13, 2:24 PM MSTSevere Thunderstorm WarningPSRGila66 min

Nearby

Severe Thunderstorm Warnings in Arizona, 1993Every severe thunderstorm warning in 1993

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.