Flash Flood Warning 4, NWS Flagstaff, AZ

Issued

Jan 12, 2005, 7:55 PM MST (02:55 UTC)

Expired

Jan 13, 2005, 12:00 AM MST

In force

4 hr

Issued by

NWS Flagstaff, AZ

Area

Counties, with a storm outline in the text

County Coconino County, AZ

The Cedar City radar (KICX), 157 km from the middle of the area, began a volume at 02:54 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WGUS55 KFGZ 130300
FFWFGZ
AZC005-130700-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
755 PM MST WED JAN 12 2005

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS EXTENDED A

* FLASH FLOOD WARNING FOR...
  WEST CENTRAL COCONINO COUNTY IN NORTH CENTRAL ARIZONA

* UNTIL 1200 AM MST

* AT 755 PM MST...RIVER GAGE DATA IN THE SUPAI AREA INDICATED THAT
  THE WATER LEVELS IN CATARACT/HAVASU CREEK WERE STILL HIGH...AND
  CAUSING FLOODING.

LAW ENFORCEMENT OFFICIALS IN THE SUPAI AREA REPORT THAT THE WATER 
LEVEL HAS ONLY RECEDED A FEW INCHES SINCE LATE THIS AFTERNOON. THE 
WATER IN HAVASU CREEK IS STILL THREATENING THE REMAINING BRIDGES IN 
THE AREA...BUT HAS NOT YET THREATENED ANY HOUSING STRUCTURES.

EARLIER THIS AFTERNOON...LAW ENFORCEMENT OFFICIALS REPORTED THAT TWO 
FOOT BRIDGES HAD BEEN DESTROYED BY HIGH WATER.

THERE IS A POSSIBILITY OF LOG AND STICK JAMS CAUSING RAPID WATER 
RISES TONIGHT AS HIGH FLOW CONTINUES. HOWEVER...AS LONG AS THE WATER 
FLOW CONTINUES RUN FREE...LEVELS WILL SLOWLY RECEDE THROUGH THE 
NIGHT AS TEMPERATURES COOL...AND THE UPSTREAM SUPPLY DECREASES.

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.

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

LAT...LON 3612 11257 3632 11266 3626 11280 3610 11274

$$

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Jan 12, 2:30 PM MST, 5 hours 25 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF
230 PM MST WED JAN 12 2005

.SYNOPSIS...WEAK HIGH PRESSURE WILL REMAIN OVER THE DESERT SW FOR
THE NEXT SEVERAL DAYS. MOISTURE CAUGHT IN THE WESTERLY FLOW ALOFT
WILL BRING SOME CLOUDS TO NORTHERN ARIZONA FROM TIME TO TIME BUT
NO PRECIPITATION IS EXPECTED. TEMPERATURES WILL SLOWLY MODERATE...
RETURNING TO NEAR SEASONAL LEVELS.

&&

.DISCUSSION...CLOUDS ARE DECREASING ALONG THE NEW MEXICO BORDER
AS THE UPPER LOW CONTINUES ITS EASTERLY MOVEMENT INTO THE TX
PANHANDLE. EXPECTING MOSTLY CLEAR SKIES ACROSS THE CWA TONIGHT. A
WEAK HIGH PRESSURE RIDGE OFF THE WEST COAST WILL PRODUCE A NW TO W
FLOW ALOFT ACROSS THE CWA FOR THE NEXT SEVERAL DAYS. SOME UPPER
LEVEL MOISTURE CAUGHT IN THE FLOW WILL BRING PERIODS OF CLOUDS TO
THE REGION FROM TIME TO TIME BUT NO PRECIP IS EXPECTED. HGTS RISE
ONLY SLOWLY SO TEMPERATURES WILL MODERATE ONLY SLOWLY. LOOKING FOR
COLD NIGHTS WITH DAYTIME MAXES INCHING TOWARD NORMAL LEVELS.

MEDIUM RANGE MODELS INDICATE WEAK LOW PRESSURE SYSTEM DEVELOPING
EARLY NEXT WEEK TO THE SW OF THE STATE. RUN TO RUN CONSISTENCY OF
THIS FEATURE HAS BEEN POOR SO LITTLE CONFIDENCE IN THE MODELS ATTM.
WILL KEEP TEMPS NEAR SEASONAL WITH PC SKIES.

THE FLOOD WARNING WAS ALLOWED TO EXPIRE AT NOON. AUTOMATED GAUGES
SHOWED ALL STREAMS AND RIVERS BELOW BANKFULL WITH WATER LEVELS
CONTINUING TO FALL. A CHECK WITH LAW ENFORCEMENT OFFICIALS INDICATED
NO FLOODING PROBLEMS ACROSS THE WARNED AREA. DF

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...NONE.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
700 AM MST WED JAN 12 2005

AZZ004>018-037>040-131400-
WESTERN MOGOLLON RIM-GRAND CANYON COUNTRY-YAVAPAI COUNTY MOUNTAINS-
YAVAPAI COUNTY VALLEYS AND BASINS-OAK CREEK AND SYCAMORE CANYONS-
MARBLE AND GLEN CANYONS-KAIBAB PLATEAU-COCONINO PLATEAU-
NORTHEAST PLATEAU AND MESAS HWY 264 NORTHWARD-
NORTHEAST PLATEAU AND MESAS SOUTH OF HWY 264-
CHINLE VALLEY-CHUSKA MOUNTAINS AND DEFIANCE PLATEAU-
BLACK MESA AREA-LITTLE COLORADO RIVER VALLEY IN COCONINO COUNTY-
LITTLE COLORADO RIVER VALLEY IN NAVAJO COUNTY-
LITTLE COLORADO RIVER VALLEY IN APACHE COUNTY-
EASTERN MOGOLLON RIM-WHITE MOUNTAINS-NORTHERN GILA COUNTY-
700 AM MST WED JAN 12 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR APACHE...COCONINO...NORTHERN
GILA...NAVAJO...AND YAVAPAI COUNTIES IN NORTHERN ARIZONA.

.DAY ONE...TODAY

THE PACIFIC STORM THAT PRODUCED DAYS OF RAIN AND SNOW HAS EXITED TO
THE EAST...WITH ONLY A FEW LINGERING SHOWERS EXPECTED DURING THE DAY
TODAY. STREAM AND RIVER FLOWS REMAIN HIGH IN MANY LOCATIONS AND A FEW
LOCATIONS ON OAK CREEK AND VERDE RIVER ARE AT BANKFUL. SEE PRODUCT
PHXFLSFGZ FOR ADDITIONAL DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

Flash Flood Warnings in Arizona, 2005Every flash flood warning in 2005

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.