Alert archive / Arizona / Tornado Warnings in 1997
Tornado Warning 1, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this tornado warning at Aug 4, 1997, 2:30 PM MST for Coconino County, Arizona. It was in force for 35 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, 2:30 PM MST (21:30 UTC)
- Expired
- Aug 4, 1997, 3:05 PM MST
- In force
- 35 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Whole counties
County Coconino County, AZ
The radar
The Flagstaff radar (KFSX), 150 km from the middle of the area, began a volume at 21:30 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 12:00Z, 9.5 hours before the alert went out and 68 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
- 381 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 832 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 109 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFLG 042132 TORFLG AZC005-042205- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 230 PM MST MON AUG 4 1997 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF AZ HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 305 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL ARIZONA ...SOUTH CENTRAL COCONINO COUNTY AT 229 PM MST...A DEVELOPING TORNADO WAS INDICATED BY FLAGSTAFF DOPPLER RADAR AND SPOTTER REPORTS 49 MILES SOUTH OF PAGE OR 2 MILES WEST SOUTHWEST OF WINONA MOVING NORTH AT 15 MPH. SOME LOCATIONS IN THE PATH OF THIS TORNADIC STORM INCLUDE... WINONA. IF YOU ARE CAUGHT OUTSIDE...TRY TO FIND A NEARBY REINFORCED BUILDING FOR SHELTER. AS A LAST RESORT...LIE FACE DOWN IN A DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. &
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Flagstaff, AZ wrote its last area forecast discussion before this tornado warning went out at Aug 4, 1:55 PM MST, 35 minutes earlier.
Area forecast discussion, Aug 4, 1:55 PM MST, 35 minutes before
NORTHERN ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE FLAGSTAFF AZ 150 PM MST MON AUG 04 1997 BUSY AFTERNOON HERE AT FLG...WITH SEVERAL FFW'S ISSUED WITH SOME FLOODING REPORTED.. FROM A QUICK GLANCE AT 12Z DATA MODELS INDICATING LITTLE CHANGE ON TAP FOR THE NEXT FEW DAYS..ALBEIT A BIT OF DRYING WILL OCCUR. VORT MAX OVER NW AZ CONTINUES TO EXIT THE STATE...BUT WITH LOTS OF LOW LEVEL MOISTURE IN PLACE...THIS ALLOWED SOME HEAVY RAIN PRODUCING THUNDERSTORMS OVER THE AREA. ONE REPORT RECEIVED OF 2 INCHES OF RAIN IN HALF HOUR. FOR THE LONGER TERM...WILL KEEP SCATTERED POPS FOR THE NEXT FEW DAYS...AS THERE IS NOT MUCH SIGH OF BREAKING OUT OF THE PATTERN. FOR TEMPS...NOT MUCH CHANGE HERE EITHER...AS MAX TEMPS WILL DEPEND MAINLY ON CLOUD COVER...EXPECT A BIT OF WARMING OVER THE NEXT FEW DAYS...AS SOUTHERLY FLOW CONTINUES...WITH LESS CLOUDS TO PROVIDE A BIT MORE DAYTIME HEATING. FLG 423 INW 522 FLG...FLASH FLOOD WATCH UNTIL 5PM FOR ZONES 009 012 013 015 016
The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 6:06 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 4, 12:02 PM MST | Flash Flood Warning | FGZ | Coconino | 118 min |
| Aug 4, 12:02 PM MST | Severe Thunderstorm Warning | FGZ | Coconino | 118 min |
| Aug 4, 12:53 PM MST | Flash Flood Warning | FGZ | Coconino | 3 hr |
| Aug 4, 1:19 PM MST | Flash Flood Warning | FGZ | Coconino | 4 hr |
| Aug 4, 4:45 PM MST | Flash Flood Warning | FGZ | Coconino | 105 min |
Nearby
Tornado Warnings in Arizona, 1997Every tornado warning in 1997Tornadoes 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.