Alert archive / Arizona / Flash Flood Warnings in 1996
Flash Flood Warning 42, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 2, 1996, 12:30 AM MST for Pima County, Arizona. It was in force for 60 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 2, 1996, 12:30 AM MST (07:30 UTC)
- Expired
- Aug 2, 1996, 1:30 AM MST
- In force
- 60 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 07:32 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 00:00Z, 7.5 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
- 202 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 2698 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 107 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 020734 FFWTUS AZC019-020830- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 1230 AM MST FRI AUG 2 1996 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 130 AM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ARIZONA ...EAST CENTRAL PIMA COUNTY AT 1230 AM TUCSON DOPPLER RADAR AND AUTOMATED RAIN GAGES CONTINUED TO INDICATE EXTREMELY HEAVY RAINFALL IN AN AREA FROM OLD TUCSON 10 MILES SOUTHWEST OF TUCSON ALONG HWY 86 THROUGH THREE POINTS TO AN AREA ABOUT 15 MILES NORTHEAST OF SELLS. THE FLASH FLOOD WARNING FOR THE AREA SOUTHWEST OF TUCSON CONTINUES AND HAS BEEN EXPANDED INTO THE FAR EASTERN PORTION OF THE TOHONO OODHAM NATION ABOUT 15 MILES NORTHEAST OF SELLS. MEYER
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 1, 8:52 PM MST, 3 hours 38 minutes earlier.
Area forecast discussion, Aug 1, 8:52 PM MST, 3 hours 38 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 900 PM MST THU AUG 01 1996 00Z TUS SOUNDG ON THE STABLE SIDE AND NO SVR WX IN CWA SO FAR TNGT. THOUGH...SOME HEAVY RAINERS GENERATED BY OUTFLOW FRM THE RIM. ANOTHER LINE OF TSTMS IN NW MEX MOVG OVR THE SRN GLF AREA. DOUGLAS STILL ON A NWWD TRACK WITH MID-UPR LVL MSTR SPREADG AS FAR N AS ABOUT 25N. FRI...PAC TROF PUSHES UPR HI SE OF TUS WITH SLY WIND AT MID-UPR LVLS. MODELS SHOW WK UPR LOW ALONG SRN ZNS MOVG WWD AROUND BOTTOM OF HI. CURRENT FCST BETTING ON GLF SURGE MSTR TO MAKE IT INTO AREA FRI/FRI NGT. WITH LESS CLDS...MORE HTG AND DEFORMATION ZONE OVR SRN AZ SHOULD SEE MORE CONVECTIVE ACTVTY. SAT...NEW ETA CONTINUING TREND OF PAC TROF PUSHG UPR HI INTO SE NM. MID LVL FLOW S-SWLY. AVN SHOWG MINOR DECR IN MSTR...BUT NOT SIGNIFICANT. WILL GO WITH STANDARD LOW GRADE MONSOON. TUS 2242.
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 11:30 PM MST | Flash Flood Warning | TWC | Pima | 60 min |
| Aug 2, 12:30 AM MST | Severe Thunderstorm Warning | TWC | Pima | 60 min |
| Aug 2, 2:55 PM MST | Flash Flood Warning | TWC | Cochise | 65 min |
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.