Alert archive / Arizona / Flash Flood Warnings in 1995

Flash Flood Warning 21, NWS Phoenix, AZ

August 11, 1995Graham County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Aug 11, 1995, 2:10 PM MST for Graham County, Arizona. It was in force for 85 min.

The area

The counties it named.

The facts

Issued: Aug 11, 1995, 2:10 PM MST (21:10 UTC)
Expired: Aug 11, 1995, 3:35 PM MST
In force: 85 min
Issued by: NWS Phoenix, AZ
Area: Whole counties

County Graham County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.2 hours before the alert went out and 127 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: 37 J/kg
Mixed-layer CIN: -331 J/kg
Mixed-layer LCL: 2172 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 88 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 
TTAA00 KPHX 112113
FFWPHX
AZC009-112235-

BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
210 PM MST FRI AUG 11 1995

THE NATIONAL WEATHER SERVICE IN PHOENIX AZ HAS ISSUED A SEVERE
THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 335 PM MST FOR
PEOPLE IN THE FOLLOWING LOCATIONS...

IN EAST-CENTRAL ARIZONA

  ...WESTERN GRAHAM COUNTY

AT 205 PM MST PHOENIX DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS
WITH VERY HEAVY RAIN AND LARGE HAIL EXTENDING SOUTHWEST FROM BYLAS
SOUTH TO OVER THE CORONADO NATIONAL FOREST WEST OF MT. GRAHAM.
MOVEMENT WAS WEST AT 10 TO 15 MPH.

CAMPERS AND HIKERS IN THE CORONADO NATIONAL FOREST... ESPECIALLY
THOSE NEAR THE ARAVAIPA CREEK...SHOULD BE ON THE LOOKOUT FOR THESE
STORMS.  
JD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 10, 6:14 PM MST	Flash Flood Warning	PSR	Pinal	71 min
Aug 10, 6:14 PM MST	Severe Thunderstorm Warning	PSR	Pinal	71 min
Aug 11, 12:30 AM MST	Severe Thunderstorm Warning	PSR	Maricopa	53 min
Aug 11, 3:03 PM MST	Severe Thunderstorm Warning	PSR	Pinal	42 min
Aug 11, 3:44 PM MST	Severe Thunderstorm Warning	PSR	Pinal	56 min
Aug 11, 3:46 PM MST	Flash Flood Warning	PSR	Graham	59 min
Aug 11, 4:26 PM MST	Severe Thunderstorm Warning	PSR	Gila	44 min

Nearby

Flash Flood Warnings in Arizona, 1995 Every flash flood warning in 1995

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.