Alert archive / Arizona / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Flagstaff, AZ

July 13, 1990Yavapai County, Arizona

NWS Flagstaff, AZ issued this severe thunderstorm warning at Jul 13, 1990, 8:03 PM MST for Yavapai County, Arizona. It was in force for 117 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1990, 8:03 PM MST (03:03 UTC)
Expired
Jul 13, 1990, 10:00 PM MST
In force
117 min
Issued by
NWS Flagstaff, AZ
Area
Whole counties

County Yavapai County, AZ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Winslow (Autob), AZ (KINW), launched 00:00Z, 3.1 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 1990-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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 1990-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
11 J/kg
Mixed-layer CIN
-251 J/kg
Mixed-layer LCL
2644 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
27 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 Flagstaff, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 10:04 PM MSTFlash Flood WarningFGZNavajo9 hr
Jul 13, 10:04 PM MSTFlash Flood WarningFGZApache9 hr
Jul 14, 5:17 AM MSTFlash Flood WarningFGZApache4 hr
Jul 14, 5:17 AM MSTFlash Flood WarningFGZNavajo4 hr
Jul 14, 9:01 AM MSTFlash Flood WarningFGZNavajo3 hr
Jul 14, 9:01 AM MSTFlash Flood WarningFGZApache3 hr

Nearby

Severe Thunderstorm Warnings in Arizona, 1990Every severe thunderstorm warning in 1990

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.