Alert archive / Arizona / Flash Flood Warnings in 2001

Flash Flood Warning 5, NWS Flagstaff, AZ

July 14, 2001Apache County, Arizona

NWS Flagstaff, AZ issued this flash flood warning at Jul 14, 2001, 6:30 PM MST for Apache County, Arizona. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jul 14, 2001, 6:30 PM MST (01:30 UTC)
Expired: Jul 14, 2001, 8:30 PM MST
In force: 2 hr
Issued by: NWS Flagstaff, AZ
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Apache County, AZ

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 1.5 hours before the alert went out and 236 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: 208 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 2019 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 104 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 150134
FFWFLG

AZC001-150430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
630 PM MST SAT JUL 14 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL APACHE COUNTY IN ARIZONA

* UNTIL 930 PM MST

* AT 630 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN 16 MILES WEST OF ROUND ROCK...OR ABOUT 22 MILES NORTHWEST OF
  CHINLE...MOVING NORTHEAST AT 35 MPH.

* THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL AFFECT OR PASS CLOSE 
TO...8 MILES NORTHWEST OF ROUND ROCK AT 645 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.
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 3647 10991 3633 10975 3623 10957 3635 10940
          3662 10940 3667 10963

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Flagstaff, AZ wrote its last area forecast discussion before this flash flood warning went out at Jul 14, 2:30 PM MST, 4 hours earlier.

Area forecast discussion, Jul 14, 2:30 PM MST, 4 hours before

NORTHERN ARIZONA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
230 PM MST SAT JUL 14 2001

.SYNOPSIS...EXPECT SHOWER AND THUNDERSTORM ACTIVITY TO PERSIST
THROUGH THE COMING WEEK. A SLIGHT SHIFT IN THE UPPER WIND PATTERNS
WILL RESULT IN A MINOR DECREASE IN SHOWER AND THUNDERSTORM ACTIVITY
OVER THE WEST SUNDAY THROUGH TUESDAY. VERY LITTLE CHANGE IN ACTIVITY
IS EXPECTED FROM FLAGSTAFF EASTWARD. BY WEDNESDAY...MOISTURE LEVELS
WILL BEGIN TO SLOWLY INCREASE...WITH SHOWER AND THUNDERSTORM
ACTIVITY RETURNING TO MUCH OF THE REGION.

.DISCUSSION...STRONG HEATING COMBINED WITH SOME MID TO UPPER LEVEL
FORCING AND A BIT OF SHEAR HAS MADE FOR AN ACTIVE DAY TODAY. EXPECT
THIS FORCING TO END THIS AFTERNOON OR EVENING AS THE SHORTWAVES
RESPONSIBLE MOVE AWAY FROM THE AREA. TROUGH OFF THE WEST COAST WILL
STRENGTHEN A BIT THROUGH AT LEAST MONDAY...PROVIDING SEVERAL DAYS OF
SOUTHWEST FLOW. WILL NOT DRY THINGS OUT AS FAST AS MODELS WOULD
LIKE...BUT WILL SHOW A DRYING TREND NEXT FEW DAYS OVER THE WESTERN
ZONES. BY DAY FOUR...WEST COAST TROUGH WILL RELAX A BIT AND EXPECT
THE MOISTURE BOUNDARY TO MOVE BACK WESTWARD. THE WESTWARD PUSH WILL
NOT BE ANYTHING GREAT...BUT JUST ENOUGH TO MENTION CHANCE POPS AGAIN
IN THE WESTERN ZONES. THE EASTERN ZONES ARE NOT LIKELY TO HAVE A
DRYING TREND AT ALL DURING THIS FORECAST PERIOD. PETERSON.

.FGZ...NONE.

Nearby

Flash Flood Warnings in Arizona, 2001 Every flash flood warning in 2001

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.