Severe Thunderstorm Warning 24, NWS Flagstaff, AZ

Issued

Jul 5, 2001, 4:06 PM MST (23:06 UTC)

Expired

Jul 5, 2001, 4:45 PM MST

In force

39 min

Issued by

NWS Flagstaff, AZ

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Gila County, AZ

The Flagstaff radar (KFSX), 43 km from the middle of the area, began a volume at 23:07 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 
WUUS55 KFGZ 052309
SVRFLG

AZC007-052345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
406 PM MST THU JUL 5 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN GILA COUNTY IN ARIZONA
  THIS INCLUDES THE CITY OF PAYSON

* UNTIL 445 PM MST

* AT 406 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
  3 MILES NORTHWEST OF PAYSON...MOVING WEST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT THE PAYSON AREA AND STATE 
ROUTE 87 FROM PAYSON NORTHWARD TO MILEMARKER 261 THROUGH 445 PM MST.

IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND 
MOVE TO A SUBSTANTIAL SHELTER.

HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS WASHES AND UNDERPASSES.
AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY BE
WASHED OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...
THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE.

LAT...LON 3428 11148 3409 11147 3428 11123 3433 11134

NWS Flagstaff, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 5, 2:30 PM MST, 1 hour 36 minutes earlier.

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
230 PM MST THU JUL 05 2001

SYNOPSIS...HIGH PRESSURE ALOFT WILL SHIFT EASTWARD OVER THE NEXT FEW
DAYS. AS A RESULT...A MOIST SOUTHERLY FLOW WILL DEVELOP OVER ARIZONA.
LOOK FOR DAILY SHOWERS AND THUNDERSTORMS OVER NORTHERN ARIZONA TO
CONTINUE INTO NEXT WEEK.

DISCUSSION...UPPER RIDGE CENTERED OVER COLORADO THIS AFTERNOON. MODELS
IN GENERAL AGREEMENT IN MOVING THIS FEATURE EASTWARD OVER THE NEXT
TWO DAYS. FOR TONIGHT MID TO UPPER FLOW WILL REMAIN SOUTHEASTERLY WITH
THE MAIN THUNDERSTORM ACTIVITY OVER THE WESTERN THIRD OF THE COUNTY
WARNING AREA (CWA) WHERE THE HIGHEST MOISTURE VALUES ARE LOCATED. THIS
INCLUDES THE WESTERN MOGOLLON RIM...YAVAPAI COUNTY...THE COCONINO
PLATEAU...GRAND CANYON COUNTRY AND THE KAIBAB PLATEAU. EXPECT AT
LEAST ISOLATED STORM ACTIVITY TO CONTINUE OVERNIGHT IN THIS AREA. THE
REMAINDER OF THE CWA WILL SEE JUST ISOLATED EVENING THUNDERSTORMS AS
DRIER AIR CONTINUES TO FEED IN FROM NEW MEXICO. ON FRIDAY AND
SATURDAY A WEAK TROUGH (CURRENTLY ALONG THE BAJA CALIFORNIA COAST)
WILL MOVE NORTHWARD ACROSS WESTERN ARIZONA AND SOUTHERN CALIFORNIA.
THE NET RESULT WILL BE A DEEPENING AND STRENGTHENING SOUTHERLY FLOW.
PRECIPITABLE WATER VALUES IN SOUTHERN ARIZONA ARE IN THE 1.50 TO
2.00 INCH RANGE TODAY AND  THIS MOISTURE WILL BE ADVECTED ACROSS
NORTHERN ARIZONA ON FRIDAY AND SATURDAY. AS A RESULT...COULD SEE THE
MOST SIGNIFICANT THREAT OF FLASH FLOOD PRODUCING THUNDERSTORMS THIS
SEASON. OTHERWISE...WITH MORE MOISTURE AND CLOUDS DAYTIME
TEMPERATURES WILL GRADUALLY LOWER WITH GENERALLY LIGHT WINDS.

IN THE EXTENDED...UPPER RIDGE REMAINS NEAR THE FOUR CORNERS AREA
WITH MOISTURE CONTINUING TO MOVE INTO NORTHERN ARIZONA FROM THE
SOUTH. AS A RESULT...A CHANCE OF SHOWERS AND THUNDERSTORMS ARE
EXPECTED EACH DAY.

MCCOLLUM

.FGZ...NONE.

Severe Thunderstorm Warnings in Arizona, 2001Every severe thunderstorm warning in 2001

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.