Alert archive / Arizona / Flash Flood Warnings in 2003

Flash Flood Warning 13, NWS Flagstaff, AZ

August 22, 2003Yavapai County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Aug 22, 2003, 1:48 PM MST for Yavapai County, Arizona. It was in force for 57 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: Aug 22, 2003, 1:48 PM MST (20:48 UTC)
Expired: Aug 22, 2003, 2:45 PM MST
In force: 57 min
Issued by: NWS Flagstaff, AZ
Area: Counties, with a storm outline in the text

County Yavapai County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.8 hours before the alert went out and 86 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 62 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 1795 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KFGZ 222052
FFWFGZ
AZC025-222245-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
148 PM MST FRI AUG 22 2003

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL YAVAPAI COUNTY IN WEST CENTRAL ARIZONA
  THIS INCLUDES THE CITIES OF...PRESCOTT VALLEY...PRESCOTT...CHINO
  VALLEY

* UNTIL 345 PM MST

* AT 144 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN 6 MILES NORTH OF PRESCOTT. THIS INCLUDES HIGHWAY 89 BETWEEN
  PRESCOTT AND CHINO VALLEY.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...ROADS...AND ROADSIDE CULVERTS. ADDITIONALLY...
OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

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 IN
FLAGSTAFF.

LAT...LON 3457 11261 3457 11232 3489 11232 3490 11260

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 2:13 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	32 min
Aug 22, 2:15 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	30 min
Aug 22, 2:46 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	29 min
Aug 22, 3:18 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	27 min
Aug 22, 3:44 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	31 min

Nearby

Flash Flood Warnings in Arizona, 2003 Every flash flood warning in 2003

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.