Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 44, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 8, 1996, 4:54 PM MST for Pima County, Arizona. It was in force for 66 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 8, 1996, 4:54 PM MST (23:54 UTC)
- Expired
- Aug 8, 1996, 6:00 PM MST
- In force
- 66 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The radar
The Tucson radar (KEMX), 112 km from the middle of the area, began a volume at 23:57 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
Tuscon, AZ (KTUS), launched 12:00Z, 11.9 hours before the alert went out and 84 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.
- Mixed-layer CAPE
- 115 J/kg
- Mixed-layer CIN
- -286 J/kg
- Mixed-layer LCL
- 2455 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -25 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 082353 FFWTUS AZC019-090100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 454 PM MST THU AUG 8 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 600 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ARIZONA ...EASTERN PIMA COUNTY AT 447 PM TUCSON DOPPLER RADAR INDICATED VERY HEAVY RAINFALL FROM A THUNDERSTORM ABOUT 5 MILES WEST OF GREEN VALLEY. RADAR ESTIMATES OVER 2 INCHES OF RAIN HAVE FALLEN FROM THIS STORM DURING THE PAST HOUR. THIS STORM WAS MOVING TOWARDS THE SOUTHWEST AT 10 MPH AND WILL AFFECT AREAS AROUND GREEN VALLEY. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING W0ATER MOVE UP TO HIGHER GROUND. COLLINS
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 Tucson, AZ wrote its last area forecast discussion before this flash flood warning went out at Aug 8, 1:53 PM MST, 3 hours 1 minute earlier.
Area forecast discussion, Aug 8, 1:53 PM MST, 3 hours 1 minute before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 215 PM MST THU AUG 8 1996 E/SELY FLOW CONTG WITH DEWPTS ABLE TO SUSTAIN THEMSELVES IN THE UPPER 50S TDA...10-15 DEGS HIGHER THAN YDA. SCT TSTMS DVLPG JUST ABOUT ENTIRE CWA E OF ZN21. PROFILE COULD BE RIPE FOR SOME SVR DOWNBURST WNDS...BUT LOWER ATMOS ON THE DRY SIDE...SO PCPN LESS OF A CONCERN FOR 1ST EFFORTS THIS AFTN. EFFECTS OF INVERTED TROF WITH OUTFLOW FROM DEAD COMPLEX OVR NRN MEXICO CAN BE THANKED FOR JUMP-START RETURN OF MONSOON...EFFECTS SHUD CONT AND BRING ACTIVE EVENING. MESOSCALE ORGANIZATION SHUD NOT BE SUCH THAT DEBRIS CLDS INHIBIT DEVELOPMENT FOR TMW...SO MORE SCT TSTMS MOST OF THE AREA TMW. ELY WAVE FROM TX MAY ENHANCE THINGS A BIT MORE IN 36 HRS OR SO...SOMETHING TO WATCH. EXTD...MDLS PUSH HIGH CNTR WWD INTO NV. NLY/NELY FLOW WITH RDG AXIS ORIENTATION PSBLY OVHD MAY THIN COVERAGE OUT A BIT FOR SERN PTNS. ANOTHER WAIT AND SEE. TUS 4343. MEYER*
Nearby
Flash Flood Warnings in Arizona, 1996Every flash flood warning in 1996
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.