Alert archive / Arizona / Flash Flood Warnings in 2000

Flash Flood Warning 4, NWS Flagstaff, AZ

August 17, 2000Gila County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Aug 17, 2000, 7:29 PM MST for Gila 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 counties it named.

The facts

Issued: Aug 17, 2000, 7:29 PM MST (02:29 UTC)
Expired: Aug 17, 2000, 8:30 PM MST
In force: 61 min
Issued by: NWS Flagstaff, AZ
Area: Whole counties

County Gila County, AZ

The radar

The Flagstaff radar (KFSX), 93 km from the middle of the area, began a volume at 02:30 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.

The nearest sounding before it

Phoenix, AZ (KPSR), launched 00:00Z, 2.5 hours before the alert went out and 115 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: 146 J/kg
Mixed-layer CIN: -205 J/kg
Mixed-layer LCL: 2669 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -12 m²/s²
0-3 km storm-relative helicity: 25 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS55 KFGZ 180238
FFWFGZ
AZC007-180430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
729 PM MST THU AUG 17 2000

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWEST GILA COUNTY IN ARIZONA

* UNTIL 930 PM MST

* AT 729 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY
  HEAVY RAIN OVER NORTHWEST GILA COUNTY NEAR JAKES CORNER ALONG THE
  SIERRA ANCHAS. EXPECT FLASH FLOODING TO OCCUR IN THE
  TRIBUTARIES LEADING INTO TONTO CREEK AND ROOSEVELT LAKE FROM
  NORTHERN GILA COUNTY. SOME STREAMS INCLUDED IN THIS WARNING INCLUDE
  GREENBACK AND SALOME CREEK.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID
CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

A 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.
$$


LAT...LON 3383 11141 3365 11114 3383 11081 3399 11088
          3399 11112

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 5:21 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	24 min
Aug 17, 6:23 PM MST	Severe Thunderstorm Warning	FGZ	Gila	37 min
Aug 17, 6:30 PM MST	Flash Flood Warning	FGZ	Yavapai	30 min

Nearby

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

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; radar from the NEXRAD Level II archive.