Alert archive / Arizona / Flash Flood Warnings in 1997

Flash Flood Warning 1, NWS Tucson, AZ

May 19, 1997Pinal County, Arizona

NWS Tucson, AZ issued this flash flood warning at May 19, 1997, 2:12 PM MST for Pinal County, Arizona. It was in force for 93 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: May 19, 1997, 2:12 PM MST (21:12 UTC)
Expired: May 19, 1997, 3:45 PM MST
In force: 93 min
Issued by: NWS Tucson, AZ
Area: Whole counties

County Pinal County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.2 hours before the alert went out and 92 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: 295 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 2139 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 12 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 KTUS 192115
FFWTUS
AZC021-192245-

BULLETIN
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
212 PM MST MON MAY 19 1997

THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 345 PM MST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL ARIZONA

   ...SOUTHEASTERN PINAL COUNTY
 
A STRONG THUNDERSTORM WITH VERY HEAVY RAIN WAS LOCATED EAST OF
DUDLEYVILLE AND WINKELMAN. ASH CREEK AND DEER CREEK MAY BE FLOWING
WITH 2WATER. WATER MAY BE FLOWING RAPIDLY OVER LOW WATER CROSSINGS. 
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

The office that day

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

Issued	Product	Office	Counties	Lasted
May 19, 11:59 AM MST	Severe Thunderstorm Warning	TWC	Pinal	46 min
May 19, 12:53 PM MST	Severe Thunderstorm Warning	TWC	Pinal	47 min
May 19, 1:36 PM MST	Severe Thunderstorm Warning	TWC	Pinal	29 min
May 19, 2:46 PM MST	Flash Flood Warning	TWC	Pinal	64 min
May 19, 2:46 PM MST	Severe Thunderstorm Warning	TWC	Pinal	64 min

Nearby

Flash Flood Warnings in Arizona, 1997 Every flash flood warning in 1997

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.