Alert archive / Arizona / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 21, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this severe thunderstorm warning at Aug 4, 1997, 5:02 PM MST for Yavapai County, Arizona. It was in force for 48 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 4, 1997, 5:02 PM MST (00:02 UTC)
- Expired
- Aug 4, 1997, 5:50 PM MST
- In force
- 48 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties
County Yavapai County, AZ
The radar
The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 00:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.0 hours before the alert went out and 98 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
- 249 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFLG 050004 RRA SVRFLG AZC025-050050- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 502 PM MST MON AUG 4 1997 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF AZ HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 550 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL ARIZONA ...NORTHEASTERN YAVAPAI COUNTY AT 500 PM MST...A SEVERE THUNDERSTORM WAS INDICATED BY FLAGSTAFF DOPPLER RADAR JUST SOUTHEAST CAMP VERDE MOVING NORTH AT 15 MPH. SOME LOCATIONS IN THE WARNING AREA INCLUDE...CAMP VERDE... MCGUIREVILLE AND RIM ROCK. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH... DESTRUCTIVE HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 5:30 PM MST | Flash Flood Warning | FGZ | Gila | 90 min |
| Aug 4, 5:57 PM MST | Flash Flood Warning | FGZ | Gila | 63 min |
| Aug 4, 5:57 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 63 min |
| Aug 4, 6:46 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 44 min |
| Aug 4, 6:57 PM MST | Flash Flood Warning | FGZ | Gila | 33 min |
| Aug 4, 6:57 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 33 min |
| Aug 4, 7:22 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 38 min |
| Aug 4, 7:36 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 54 min |
| Aug 4, 7:49 PM MST | Severe Thunderstorm Warning | FGZ | Gila | 41 min |
| Aug 5, 11:42 AM MST | Severe Thunderstorm Warning | FGZ | Coconino | 63 min |
| Aug 5, 2:16 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 49 min |
| Aug 5, 2:45 PM MST | Severe Thunderstorm Warning | FGZ | Yavapai | 50 min |
| Aug 5, 3:20 PM MST | Severe Thunderstorm Warning | FGZ | Navajo | 40 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.