Flash Flood Warning 1, NWS Flagstaff, AZ

Issued

Aug 7, 2000, 5:39 PM MST (00:39 UTC)

Expired

Aug 7, 2000, 7:00 PM MST

In force

81 min

Issued by

NWS Flagstaff, AZ

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Coconino County, AZ, Gila County, AZ, Yavapai County, AZ

The Flagstaff radar (KFSX), 56 km from the middle of the area, began a volume at 00:41 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.

000 
WGUS55 KFGZ 080042
FFWFGZ
AZC005-007-025-080300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
539 PM MST MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME NORTHWESTERN GILA COUNTY IN ARIZONA
  EASTERN YAVAPAI COUNTY IN ARIZONA
  THIS INCLUDES THE TOWNS OF RIMROCK...LAKE MONTEZUMA AND CHILDS

* UNTIL 800 PM MST

* AT 539 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN ASSOCIATED WITH A SEVERE THUNDERSTORM 7 MILES SOUTHEAST
  OF CAMP VERDE. THIS STORM IS STATIONARY.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

TO R]EPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
FLAGSTAFF.

LAT...LON 3403 11186 3402 11160 3459 11145 3480 11173
          3456 11191 3429 11175

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Aug 7, 2:45 PM MST, 2 hours 54 minutes earlier.

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
245 PM MST MON AUG 7 2000

SYNOPSIS...HIGH PRESSURE ALOFT WILL MOVE INTO COLORADO BY TOMORROW.
WIND FLOW AROUND THE HIGH WILL CONTINUE TO PUSH MOISTURE INTO THE
STATE FROM THE EAST. THE PATTERN OF AFTERNOON AND EVENING
THUNDERSTORMS WILL CONTINUE THROUGH THE WEEK. THE MOST SIGNIFICANT
ACTIVITY WILL OCCUR OVER THE MOGOLLON RIM...WHITE MOUNTAINS...GILA
AND YAVAPAI COUNTIES. LITTLE CHANGE IN THIS PATTERN IS SEEN THROUGH
THE END OF THE WEEK.

DISCUSSION...H5 RIDGE AXIS SLOWLY MARCHING EASTWARD. CENTER TO
ANCHOR ITSELF OVER COLORADO AND INTENSIFY NEXT 48 HRS KEEPING STATE
UNDER ITS INFLUENCE. MODEL CONTINUE TO SHOW SEEPAGE OF MID LEVEL RH
IN CWA. PREFER MOISTER ETA OVER DRYER AVN. PW SAT IMAGERY INDICATING
1-2 INCHES PW VALUES OVER SOUTHERN PERIPHERY OF CWA AND MODEL PW
OUTPUT KEEPS PW VALUES OF 1 INCH OVER MUCH OF SOUTHERN CWA THRU
THURSDAY. MOISTURE ALSO INCREASING OVER NORTHERN HALF OF CWA WITH
DP'S THERE UP 4 TO 8 DEGREES THIS AFTERNOON. MODELS SHOWING NO
STABILIZING INFLUENCES AND SEE NO REASON WHY CURRENT DIURNAL
CONVECTIVE PATTERN WILL CHANGE. EXPECT ACTIVE AFTERNOONS THRU THIS
FCST PERIOD...WITH STORMS PRODUCING HEAVY RAINFALL AND THE THREAT OF
HAIL AND GUSTY WINDS.

EXTENDED...PATTERN STATIC WITH HI PRESSURE TO DOMINATE CWA. H5
CENTER TO REMAIN OVER COLORADO WITH LIGHT FLOW ALOFT. NOTHING TO
SCOUR OUT MOISTURE SO WILL CONTINUE THE STANDARD DIURNAL CONVECTIVE
FORECAST. DF

.FGZ...NONE

In the hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE FLAGSTAFF ARIZONA
506 PM MST MON AUG 7 2000

TIME (MST) .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

506 PM     RIMROCK                   AZ   1 INCH HAIL
08/07/00   Yavapai                        STRONG WIND GUSTS HAVE ALSO CAUSED
                                          ROOF DAMAGE

Flash Flood Warnings in Arizona, 2000Every flash flood warning in 2000

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.