Alert archive / Arizona / Flash Flood Warnings in 1997
Flash Flood Warning 24, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 9, 1997, 6:24 PM MST for Pima County, Arizona. It was in force for 51 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 9, 1997, 6:24 PM MST (01:24 UTC)
- Expired
- Aug 9, 1997, 7:15 PM MST
- In force
- 51 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 1.4 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
- 187 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 2189 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 46 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 100125 FFWTUS AZC019-100215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TUCSON AZ 624 PM MST SAT AUG 9 1997 THE NATIONAL WEATHER SERVICE IN TUCSON AZ HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 715 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHERN ARIZONA ...NORTHEASTERN PIMA COUNTY AT 622 PM MST...DOPPLER RADAR AND SPOTTER REPORTS INDICATED A SEVERE THUNDERSTORM WITH EXTREMELY HEAVY RAINFALL 16 MILES WEST SOUTHWEST OF SOUTHWEST TUCSON OR 2 MILES WEST SOUTHWEST OF RYAN FIELD MOVING EAST NORTHEAST AT 5 MPH. WIND GUSTS TO 63 MPH WERE MEASURED AT RYAN FIELD.
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 9, 2:30 PM MST, 3 hours 54 minutes earlier.
Area forecast discussion, Aug 9, 2:30 PM MST, 3 hours 54 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 230 PM MST SAT AUG 9 1997 CLDS BROKE LATE MRNG WITH ISOLD TSTMS DVLPG OVR MAINLY HIGHER TERRAIN. ENVIRONMENTAL FLOW MODIFIED BY LAST NGTS COMPLEX WITH SWLY STEERING FLOW MERGING INTO MORE PERMANENT FEATURE AS SHIFTING RDG CONTS THIS TREND. AREAS RECEIVING THE MOST RAINFALL YDA...GENERALLY ZNS026>028...NOT SHOWING MUCH OF ANYTHING. MORE STABLE PROFILE EVIDENT ON 12Z RAOB WITH SFC TEMPS STRUGGLING. ISOLD EVE STORMS (UNORGANIZED ACTIVITY DOING BETTER S OF THE BORDER) THEN DECRG CLDS. TMW SHUD SEE REBOUND IN AFTN HEATING ALONG WITH MORE THAN SUFFICIENT LOW LVL MSTR FOR BETTER COVERAGE AND SUPPORT IN THE VALLEYS. INTERESTING...STG AND DEEP SELY FLOW ON KYUX VWP. SWLY FLOW SETTING UP MAY DECR MID LVL MSTR A LTL...BUT LWR LVLS WILL HANG IN THERE JUST FINE FOR NOW (NGM WRONG). SCT TSTMS WITH TYPICAL DIURNAL MONSOON FCST INTO THE EXTD. FINE TUNING AS DETAILS SHOW THEMSELVES. TUS 0343. MEYER TUS...NONE
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 5:32 PM MST | Flash Flood Warning | TWC | Pima | 63 min |
| Aug 9, 6:24 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 min |
Nearby
Flash Flood Warnings in Arizona, 1997Every 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.