Alert archive / Arizona / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 9, NWS Phoenix, AZ

July 13, 1990Mohave County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 13, 1990, 8:44 PM MST for Mohave County, Arizona. It was in force for 3 hr. 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
Jul 13, 1990, 8:44 PM MST (03:44 UTC)
Expired
Jul 13, 1990, 11:45 PM MST
In force
3 hr
Issued by
NWS Phoenix, AZ
Area
Whole counties

County Mohave County, AZ

The radar

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

What was reported inside it

TimeReportWhereRemark
Jul 13, 8:50 PM MSTThunderstorm Wind 0Mohave, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 00:00Z, 3.7 hours before the alert went out and 226 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, Mercury/Desert R, NV at 00:00Z on 1990-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Mercury/Desert R, NV at 00:00Z on 1990-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3451 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
23 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
Jul 13, 6:40 PM MSTFlash Flood WarningPSRYavapai2 hr
Jul 13, 6:40 PM MSTFlash Flood WarningPSRLa Paz, Mohave2 hr
Jul 13, 8:03 PM MSTFlash Flood WarningPSRLa Paz, Yavapai117 min
Jul 13, 8:03 PM MSTFlash Flood WarningPSRMohave117 min
Jul 13, 8:03 PM MSTFlash Flood WarningPSRMaricopa117 min
Jul 13, 8:03 PM MSTSevere Thunderstorm WarningPSRLa Paz, Mohave117 min
Jul 13, 8:03 PM MSTSevere Thunderstorm WarningPSRMaricopa117 min
Jul 13, 8:44 PM MSTFlash Flood WarningPSRMohave3 hr
Jul 13, 10:42 PM MSTFlash Flood WarningPSRMohave48 min
Jul 13, 10:42 PM MSTSevere Thunderstorm WarningPSRMohave48 min
Jul 13, 11:34 PM MSTFlash Flood WarningPSRMohave116 min
Jul 14, 1:41 AM MSTFlash Flood WarningPSRLa Paz, Mohave3 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.