Flash Flood Warning 42, NWS Flagstaff, AZ

Issued

Jul 17, 2002, 9:00 PM MST (04:00 UTC)

Expired

Jul 17, 2002, 10:00 PM MST

In force

60 min

Issued by

NWS Flagstaff, AZ

Area

Counties, with a storm outline in the text

Counties Gila County, AZ, Navajo County, AZ

The Flagstaff radar (KFSX), 78 km from the middle of the area, began a volume at 04:02 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 180358
FFWFGZ
AZC007-017-180600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
900 PM MST WED JUL 17 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARRIZO CREEK AND THE TOWN OF CARRIZO IN
  EAST CENTRAL GILA COUNTY IN EAST CENTRAL ARIZONA
  CIBECUE CREEK AND THE TOWN OF CIBECUE IN   
  SOUTHERN NAVAJO COUNTY IN NORTHEAST ARIZONA

* UNTIL 1100 PM MST

* WEATHER SERVICE RADAR INDICATED VERY HEAVY RAINFALL 
  EARLIER THIS EVENING OVER THE HEADWATERS OF CARRIZO AND 
  CIBECUE CREEKS.  A STREAM GAUGE NORTHWEST OF CARRIZO SHOWED A
  LARGE RISE IN STREAM LEVEL JUST AFTER 800 PM MST. 

FLOOD WATERS ARE MOVING DOWN CARRIZO CREEK TOWARD THE TOWN OF 
CARRIZO. MOVE TO HIGHER GROUND IMMEDIATELY STREAM GAUGES NORTH 
OF CIBECUE HAVE SHOWN DROPS IN STREAM LEVEL SINCE 800 PM...HOWEVER 
FLOODING IS STILL POSSIBLE IN CIBECUE FOR ANOTHER HOUR OR TWO.
 I
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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

LAT...LON 3432 11046 3398 11026 3401 11055 3430 11073

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Jul 17, 2:30 PM MST, 6 hours 30 minutes earlier.

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
230 PM MST WED JUL 17 2002

.SYNOPSIS...THE AIR MASS OVER NORTHERN ARIZONA WILL REMAIN VERY
MOIST THROUGH THE END OF THE WEEK AND INTO THE WEEKEND. SEASONAL
TEMPERATURES CAN BE EXPECTED WITH AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS EACH DAY.

.DISCUSSION...AZ BTWN WEAK TROF OFF CA COAST AND HIGH PRESSURE TO
THE EAST. DEFORMATION ZONE ACROSS THE STATE TODAY SEEMS TO BE THE
FOCUS OF CONVECTION. STORMS SO FAR HAVE BEEN WEAK AND PULSEY WITH
JUST LITE PRECIP AMOUNTS. TROF MOVES ON SHORE AND THRU THE GREAT
BASIN LATE THURSDAY THEN HIGH PRESSURE RIDGE REESTABLISHES ITSELF
OVER THE STATE. AIR MASS REMAINS VERY MOIST WITH PW AT AN INCH OR
MORE THRU THE WEEKEND. WILL KEEP STANDARD MONSOON FCST WITH
AFTERNOON/EVENING SHOWERS/TSTMS EACH DAY.

EXTENDED...MEDIUM RANGE MODELS ARE IN FAIR AGREEMENT TODAY. TYPICAL
MONSOON PATTERN PROGGED THRU THE PERIOD. MODELS HINTING AS A LITTLE
DRIER AIR MOVING IN FROM THE WEST. WESTERN SECTIONS MAY SEE A SLIGHT
DOWNTURN IN PRECIP WITH THE EASTERN HALF HAVING THE BEST CHANCES OF
PRECIP. WILL BROADBRUSH THE ENTIRE CWA FOR NOW AND WILL KEEP MENTION
OF DAILY SHOWERS AND TSTMS GOING. LITTLE CHANGE IN TEMPS EXPECTED. DF

.FGZ...NONE

.CODED TEMPERATURES/POPS FOR SELECTED CITIES IN NORTHERN ARIZONA

CITY             TEMPERATURES LO/HI           PROBABILITY OF PRECIP
                 TON THU   FRI     SAT        TON THU   FRI     SAT
FLAGSTAFF        056/075 053/077 052/077      030 050 030 040 030 040
WINSLOW          065/087 064/088 063/088      020 030 020 030 020 030
PRESCOTT         062/085 061/086 060/086      030 040 030 030 020 020
PAGE             071/093 071/093 070/093      020 030 020 030 020 020
WINDOW ROCK      052/080 052/080 054/080      030 050 030 050 040 050
CANYON DE CHELLY 058/086 058/086 060/086      020 040 020 040 030 040
COTTONWOOD       070/096 069/097 068/097      020 030 020 020 020 020
GRAND CANYON     055/077 052/079 051/079      020 040 020 030 020 030
GREER            052/071 049/073 048/073      050 080 050 070 050 070
HEBER            057/080 054/082 053/082      040 070 040 060 040 060
JACOB LAKE       056/073 053/075 052/075      020 040 020 030 020 030
NAVAJO N.M.      056/080 056/080 058/080      020 040 020 040 030 040
PAYSON           063/090 062/091 061/091      030 020 030 030 020 020
SEDONA           068/094 067/095 066/095      020 030 020 020 020 020
SELIGMAN         055/088 054/089 053/089      020 030 020 020 010 010
SHOW LOW         064/081 061/083 060/083      030 050 030 040 030 040
ST. JOHNS        060/081 059/082 058/082      030 040 030 040 030 040
WUPATKI N.M.     068/089 067/090 066/090      020 030 020 030 020 030

Flash Flood Warnings in Arizona, 2002Every flash flood warning in 2002

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.