Alert archive / Arizona / Flash Flood Warnings in 2002

Flash Flood Warning 52, NWS Flagstaff, AZ

September 10, 2002Coconino County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Sep 10, 2002, 3:59 PM MST for Coconino County, Arizona. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 10, 2002, 3:59 PM MST (22:59 UTC)
Expired
Sep 10, 2002, 5:00 PM MST
In force
61 min
Issued by
NWS Flagstaff, AZ
Area
Counties, with a storm outline in the text

County Coconino County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 11.0 hours before the alert went out and 155 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Flgstf/Belemont, AZ at 12:00Z on 2002-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 222 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2002-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
222 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
824 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS55 KFGZ 102259
FFWFGZ
AZC005-110100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
359 PM MST TUE SEP 10 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ANTELOPE CANYON AND
  KAIBITO CREEK IN
  NORTH CENTRAL COCONINO COUNTY IN NORTH CENTRAL ARIZONA

* UNTIL 600 PM MST

* AT 353 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY 
  HEAVY RAIN OCCURRING ON THE EAST SLOPE OF THE KAIBITO PLATEAU. 
  THESE STORMS WERE MOVING TO THE NORTHEAST ABOUT 8 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL AFFECT
  THE DRAINAGES OF ANTELOPE AND KAIBITO CREEKS THROUGH 
  545 PM MST. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
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 SEE HIGHER GROUND.

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

LAT...LON 3633 11158 3643 11119 3694 11108 3686 11148

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 10, 12:28 PM MSTSevere Thunderstorm WarningFGZCoconino, Yavapai32 min
Sep 10, 12:30 PM MSTSevere Thunderstorm WarningFGZYavapai30 min
Sep 10, 1:29 PM MSTSevere Thunderstorm WarningFGZCoconino31 min
Sep 10, 1:56 PM MSTSevere Thunderstorm WarningFGZCoconino49 min
Sep 10, 2:13 PM MSTSevere Thunderstorm WarningFGZCoconino, Gila, Yavapai32 min
Sep 10, 2:34 PM MSTSevere Thunderstorm WarningFGZCoconino26 min
Sep 10, 2:38 PM MSTSevere Thunderstorm WarningFGZGila, Navajo32 min
Sep 10, 2:43 PM MSTSevere Thunderstorm WarningFGZCoconino, Yavapai47 min
Sep 10, 2:45 PM MSTSevere Thunderstorm WarningFGZCoconino45 min
Sep 10, 2:59 PM MSTSevere Thunderstorm WarningFGZCoconino46 min
Sep 10, 3:14 PM MSTFlash Flood WarningFGZGila, Navajo2 hr
Sep 10, 3:18 PM MSTFlash Flood WarningFGZGila, Navajo3 hr
Sep 10, 3:26 PM MSTSevere Thunderstorm WarningFGZCoconino34 min
Sep 10, 3:43 PM MSTSevere Thunderstorm WarningFGZGila47 min
Sep 10, 3:59 PM MSTFlash Flood WarningFGZCoconino2 hr
Sep 10, 4:18 PM MSTSevere Thunderstorm WarningFGZCoconino27 min
Sep 10, 4:33 PM MSTSevere Thunderstorm WarningFGZGila27 min
Sep 10, 4:41 PM MSTSevere Thunderstorm WarningFGZYavapai34 min
Sep 10, 4:47 PM MSTSevere Thunderstorm WarningFGZApache43 min
Sep 10, 4:50 PM MSTSevere Thunderstorm WarningFGZApache40 min

Nearby

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

Sources

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.