Severe Thunderstorm Warning 29, NWS Flagstaff, AZ

Issued

Aug 5, 1997, 2:16 PM MST (21:16 UTC)

Expired

Aug 5, 1997, 3:05 PM MST

In force

49 min

Issued by

NWS Flagstaff, AZ

Area

Whole counties

County Yavapai County, AZ

The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 21:19 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.

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.

000 
TTAA00 KFLG 052116 RRA
SVRFLG
AZC025-052205-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
216 PM MST TUE AUG 5 1997

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF AZ HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 305 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL ARIZONA

   ...NORTH CENTRAL YAVAPAI COUNTY
 
AT 214 PM MST...A SEVERE THUNDERSTORM WAS INDICATED BY FLAGSTAFF
DOPPLER RADAR 3 MILES NORTHWEST OF CHINO VALLEY MOVING EAST
SOUTHEAST AT 10 MPH.

SOME LOCATIONS IN THE WARNING AREA INCLUDE...  CHINO VALLEY.
 
IF YOU ARE CAUGHT OUTSIDE...FIND SHELTER IN A STRONG BUILDING AND
STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. SEVERE
THUNDERSTORMS PRODUCE DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN
AND FREQUENT LIGHTNING.

NWS Flagstaff, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 5, 1:48 PM MST, 28 minutes earlier.

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
145 PM MST TUE AUG 05 1997

SOME MID LEVEL DRYING HAS OCCURRED OVER THE PAST 24 HOURS. APPEARS
THAT DRY AIR SHOULD CONTINUE TO ADVECT INTO THE CWA OVER THE NEXT 12
HOURS AT MID TO UPPER LEVELS. 12Z MODELS INITIALIZED BROAD VORT LOBE
FROM SW AZ...TO THE NORTH EAST...MAINLY IN ASSOCIATION WITH SUB-
TROPICAL MOISTURE BOUNDARY OVER THE STATE AT THIS TIME. ETA MAY HAVE
FEATURE OVERDONE...BUT THIS MAY ONLY BE DUE TO ITS BETTER RESOLUTION.
STILL...SOME DYNAMICS THERE TO WORK WITH FOR THE NEXT 12 HOURS. A BIT
MORE CONCERNED WITH MOISTURE CURRENTLY OVER OLD MX. MODELS PROG
ANOTHER DECENT SURGE OF SUBTROPICAL MOISTURE INTO SOUTHERN PORTIONS
OF THE STATE...APPEARS THAT THERE WILL BE A BATTLE SETTING UP BETWEEN
THE INCREASING WESTERLIES...AND SUB TROPICAL MOISTURE TO WORK INTO
THE SOUTH. BIG QUESTION IS WHETHER ANY OF THIS MOISTURE WILL WORK ITS
WAY INTO THE CWA. ETA APPEARS TO BE THE MOST OPTIMISTIC FOR MOISTURE
TO MOVE IN...NGM THE DRIEST. FOR NOW WILL KEEP DECENT POPS FOR
CENTRAL MOUNTAINS AND SOUTHERN PORTIONS GOING FOR THE NEXT FEW DAYS.

AS FAR AS THE SHORT TERM GOES...APPEARS THAT CHANGE IN WIND PROFILES
HAVE HAD THEIR EFFECT ON STORM MOTION TODAY. WITH THE LIGHTER WINDS
ALOFT STORMS HAVE MORE OR LESS STAYED CONFINED TO THE RIM COUNTRY. AS
OPPOSED TO SWIFT NORTHERLY MOVEMENT STORMS HAD THE PAST FEW DAYS.
THEREFORE WILL ONLY CARRY ISOLATED POPS OVER THE LCR VALLEY...BUT
KEEP POPS A BIT HIGHER OVER THE RIM.

FLG BUSTED MAX TEMPS TODAY FAIRLY EARLY...BUT OUTFLOWS HAVE COOLED
THINGS OFF A BIT.  NGM MOS NUMBERS LOOKING PRETTY GOOD...AND WILL
MAKE ONLY A FEW MINOR ADJUSTMENTS HERE.
FLG 774 INW 253`
FLG...NONE

Severe Thunderstorm Warnings in Arizona, 1997Every severe thunderstorm warning in 1997

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; radar from the NEXRAD Level II archive.