Alert archive / Arizona / Flash Flood Warnings in 2000
Flash Flood Warning 15, NWS Tucson, AZ
NWS Tucson, AZ issued this flash flood warning at Aug 17, 2000, 3:25 PM MST for Pima County, Arizona. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 17, 2000, 3:25 PM MST (22:25 UTC)
- Expired
- Aug 17, 2000, 4:00 PM MST
- In force
- 35 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Pima County, AZ
The radar
The Tucson radar (KEMX), 26 km from the middle of the area, began a volume at 22:26 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, 10.4 hours before the alert went out and 24 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
- 516 J/kg
- Mixed-layer CIN
- -209 J/kg
- Mixed-layer LCL
- 1851 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS55 KTWC 172229 COR FFWTWC AZC019-180000- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED FOR EXPIRATION TIME... NATIONAL WEATHER SERVICE TUCSON AZ 325 PM MST THU AUG 17 2000 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHEAST PIMA COUNTY IN ARIZONA INCLUDING VAIL AND FAR SOUTHEAST TUCSON * UNTIL 500 PM MST * AT 325 PM MST...WEATHER SERVICE DOPPLER RADAR INDICATED UP TO TWO AND ONE HALF INCHES OF RAIN HAS FALLEN OVER NORTHEAST PIMA COUNTY OR ABOUT 2 MILES NORTH OF VAIL WITH THE STORM MOVING SOUTHWEST AROUND 10 MPH. RUNOFF FROM THIS STORM WILL FLOOD NORMALLY DRY WASHES AND ROADWAY DIPS WITH RUNNING WATER...ESPECIALLY ALONG OLD SPANISH TRAIL AND PISTOL HILL ROAD. 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 OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TUCSON. LAT...LON 3221 11076 3196 11072 3201 11052 3222 11052
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 3:25 PM MST | Flash Flood Warning | TWC | Pima | |
| Aug 17, 3:53 PM MST | Flash Flood Warning | TWC | Graham | 37 min |
| Aug 17, 4:18 PM MST | Severe Thunderstorm Warning | TWC | Pima | 42 min |
| Aug 17, 4:55 PM MST | Flash Flood Warning | TWC | Pima | 5 min |
Nearby
Flash Flood Warnings in Arizona, 2000Every flash flood warning in 2000
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.