Severe Thunderstorm Warning 85, NWS Flagstaff, AZ

Issued

Sep 11, 1997, 1:59 PM MST (20:59 UTC)

Expired

Sep 11, 1997, 2:45 PM MST

In force

46 min

Issued by

NWS Flagstaff, AZ

Area

Whole counties

County Coconino County, AZ

The Flagstaff radar (KFSX), 150 km from the middle of the area, began a volume at 20:59 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.

651 
WUUS1 KFLG 112100 RRA
SVRFLG
AZC005-112145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
159 PM MST THU SEP 11 1997

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF AZ HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTH CENTRAL ARIZONA

   ...NORTH CENTRAL AND NORTHERN COCONINO COUNTY
 
AT 154 PM MST...A SEVERE THUNDERSTORM WAS INDICATED BY FLAGSTAFF
DOPPLER RADAR 57 MILES SOUTHWEST OF PAGE OR 28 MILES NORTH
NORTHWEST OF TUSAYAN MOVING NORTHEAST AT 25 MPH.

THIS WARNING INCLUDES THE TOWN OF JACOB LAKE. PEOPLE NEAR OR IN
THE PATH OF THIS SEVERE STORM SHOULD FIND SHELTER.
 
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.

NWS Flagstaff, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 11, 9:01 AM MST, 4 hours 58 minutes earlier.

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
900 AM MST THU SEP 11 1997

SHORT DISCUSSION THIS MORNING AS ACTIVE WEATHER IN YAV CNTY IS
KEEPING ME BUSY.  HAVE ALREADY UPDATED MANY ZONES TO INCREASE POPS
DUE TO CURRENT ACTIVITY AND NOTICABLY MORE MSTR COMPARED TO YDAY
MORNING.  FGZ SNDG SHOWS SIGNIFICANT INCRS IN MSTR THRU 500 MB AND
CORRESPONDINGLY HIGHER INSTABILITIES.  WV IMGRY BEST INDICATOR OF
FRONT IN SRN NV DRAGGING FURTHER SOUTH FROM THE NRN NV S/WV.  THIS
SHOULD MOVE INTO NRN AZ BY AFTERNOON AND NOT ONLY MAY ACT AS TRIGGER
BUT SHEAR WILL BE INCREASING SOMEWHAT AHEAD OF IT.  HAVE NOT HAD A
CHANCE TO LOOK AT ANY MODEL DATA FROM MORNINGS RUNS YET...XCPT FOUSV
OUTPUT FROM NGM INDICATES STRONG MAX IN UVV BY 00Z FOR FLG.  SHOULD
CONTINUE TO BE A BUSY DAY.

FLG 3-2  INW 2-2
KEIGHTON
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.