Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 107, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Oct 7, 1997, 7:28 AM MST for Maricopa County, Arizona. It was in force for 47 min. 3 reports 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
- Oct 7, 1997, 7:28 AM MST (14:28 UTC)
- Expired
- Oct 7, 1997, 8:15 AM MST
- In force
- 47 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Maricopa County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 7, 7:32 AM MST | Hail 0.75 | Chandler, AZ | Dime-sized hail was reported by an NWS employee at Arizona Avenue and Pecos Road. |
| Oct 7, 7:45 AM MST | Hail 1.25 | Mesa, AZ | Hail covered the ground up to six inches deep. An NWS employee had roof tile broken and glass window broken on his house.Damage was sustained by aircraft at Falcon Field. Apache Wells RV/Golf Resort had damage to TV antennas, and damage to roofs and awnings. C |
| Oct 7, 7:50 AM MST | Thunderstorm Wind 52 | Mesa, AZ | Large to moderate-sized tree limbs were snapped by thunderstorm winds at Falcon Field. Metal awnings were damaged by the wind at Apache Wells RV/Golf Resort. |
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, 2.5 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.
- Mixed-layer CAPE
- 202 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1944 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 45 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.
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 7, 7:59 AM MST | Severe Thunderstorm Warning | PSR | Maricopa | 46 min |
| Oct 7, 10:11 AM MST | Severe Thunderstorm Warning | PSR | Gila | 49 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1997Every severe thunderstorm warning in 1997
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.