Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 43, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 16, 2000, 4:52 PM MST for Pinal County, Arizona. It was in force for 48 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 16, 2000, 4:52 PM MST (23:52 UTC)
- Expired
- Aug 16, 2000, 5:40 PM MST
- In force
- 48 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Pinal County, AZ
The nearest sounding before it
Phoenix, AZ (KPSR), launched 12:00Z, 11.9 hours before the alert went out and 82 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
- 363 J/kg
- Mixed-layer CIN
- -356 J/kg
- Mixed-layer LCL
- 2422 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
828 WUUS55 KPSR 162352 SVRPHX AZC021-170040- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 452 PM MST WED AUG 16 2000 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN PINAL COUNTY IN CENTRAL ARIZONA * UNTIL 540 PM MST * AT 445 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM BETWEEN SUPERIOR AND FLORENCE JUNCTION... MOVING NORTHWEST AT 10 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... FLORENCE JUNCTION AND QUEEN VALLEY BETWEEN 5 AND 515 PM DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS SAS
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Phoenix, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 3:26 PM MST, 1 hour 26 minutes earlier.
Area forecast discussion, Aug 16, 3:26 PM MST, 1 hour 26 minutes before
AZZ020>028-CAZ030>033-170545- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 326 PM MST WED AUG 16 2000 .SYNOPSIS... HIGH PRESSURE ALOFT WILL REMAIN OVER SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA AT LEAST THROUGH THE WEEKEND. MEANWHILE...A SERIES OF LOW PRESSURE DISTURBANCES WILL ERODE THE PERIPHERY OF THE HIGH FROM TIME TO TIME WHILE CAUSING THE CENTER OF THE HIGH TO MOVE AROUND OVER THE GREATER SOUTHWEST. ONE SUCH DISTURBANCE...REMNANTS OF TROPICAL STORM BERYL...IS MOVING TOWARD SOUTHEAST ARIZONA...BRINGING WITH IT A GOOD DEAL OF ADDITIONAL MOISTURE. THIS WILL BRING INCREASING THUNDERSTORM ACTIVITY TO SOUTH-CENTRAL AND SOUTHWEST ARIZONA LATE WEDNESDAY NIGHT THROUGH THE WEEKEND. .DISCUSSION... REMNANTS OF TS BERYL CONTINUES TO MOVE RAPIDLY NWWD ACROSS NERN MEX ...WITH LOTS OF MOISTURE APPARENT IN SATELLITE DATA. TERRAIN BETWEEN AZ AND BERYL WILL MODIFY AMOUNT OF MOISTURE TO REACH AZ...BUT IT WILL DO A LOT TO WET UP AN AREA THAT HAS BEEN DRYING OUT THE LAST COUPLE OF DAYS. DRIER AIR MOVED WWD ACROSS SRN AZ TODAY...BUT THIS WILL BE SHORTLIVED AS THE NEW MOISTURE MOVES IN FROM THE SE TONIGHT AND THU. WILL GO WITH THE IDEA OF SLIGHT CHANCE POPS LATE NIGHT TONIGHT AND THU MORNING FOR THE S-CNTRL DESERTS...INCREASING POPS THU AFTERNOON AND NIGHT AS MORE MOISTURE MOVES IN. LOOKS LIKE A DEFORMATION AXIS RUNNING SW TO NE ACROSS THE CWA BY FRI...WITH MOST OF THE CWA EITHER IN THE ZONE OR ON THE WET SIDE OF IT. THEREFORE...IDEA OF UPRAMPING STORM ACTIVITY SEEMS SOLID AND WILL CONTINUE TREND. IN THE EXTENDED ...MODIFIED FAR WRN ZONES A BIT...PUTTING THE RIVER ZONES AND FAR SE CA IN CHANCE POP9S FRI NIGHT...ADDED PERIOD...AND SAT...BUT NOT IN ON SUN OR MON AS THE MOISTURE STREAM APPEARS TO MOVE EWD AS THE FLOW OVER THAT AREA BECOMES SWLY. WILT
Nearby
Severe Thunderstorm Warnings in Arizona, 2000Every severe thunderstorm 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.