Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 41, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 13, 2000, 7:30 PM MST for Pinal County, Arizona. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 13, 2000, 7:30 PM MST (02:30 UTC)
- Expired
- Aug 13, 2000, 8:30 PM MST
- In force
- 60 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Pinal County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 13, 7:53 PM MST | Thunderstorm Wind 65 E | Stanfield, AZ | Microburst winds tore down 26 power poles in western Pinal County. Arizona Public Service reported lines and poles down for about 1 mile paralleling White - Parker Road. HIdden Valley was also without power for some time. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 2.5 hours before the alert went out and 92 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
- 58 J/kg
- Mixed-layer CIN
- -299 J/kg
- Mixed-layer LCL
- 2676 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
679 WUUS55 KPSR 140229 SVRPHX AZC021-140330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 730 PM MST SUN AUG 13 2000 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN PINAL COUNTY IN CENTRAL ARIZONA * UNTIL 830 PM MST * AT 723 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS NEAR STANFIELD AND MARICOPA...MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORMS WILL AFFECT... STANFIELD MARICOPA AK-CHIN THE GILA RIVER INDIAN COMMUNITY DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS $$ MB
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 13, 2:50 PM MST, 4 hours 40 minutes earlier.
Area forecast discussion, Aug 13, 2:50 PM MST, 4 hours 40 minutes before
AZZ020>028-CAZ030>033-140545- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 250 PM MST SUN AUG 13 2000 .SYNOPSIS... HIGH PRESSURE ALOFT WILL BE SITUATED OVER ARIZONA THIS WEEK...WITH THE CENTER OF THE HIGH OVER THE SOUTHERN ROCKIES. THIS POSITION WILL KEEP ARIZONA IN A MOIST EAST TO SOUTHEAST FLOW. THEREFORE...EXPECT LATE AFTERNOON SHOWERS AND THUNDERSTORMS EACH DAY...ESPECIALLY OVER THE HIGHER TERRAIN. LITTLE CHANGE IS EXPECTED IN THIS MOIST AND UNSTABLE PATTERN THROUGHOUT THIS WEEK. MEANWHILE...SOUTHEAST CALIFORNIA WILL BE RELATIVELY DRY THIS WEEK...WITH VERY LITTLE CHANCE OF THUNDERSTORMS. TEMPERATURES WILL BE NEAR OR SLIGHT ABOVE SEASONAL NORMALS. .DISCUSSION... LITTLE SPINNER SEEN NICELY ON VISIBLE IMAGERY HELPED TO TRIGGER ISOLATED TALL CONVECTION OVER FAR WRN AZ THIS AFTERNOON. MOST OF THE HEAVY RAIN FROM THIS CLUSTER HAS FALLEN IN OPEN DESERT AND SITUATION WAS HANDLED BY A STRONGLY WORDED NOWCAST. ELSEWHERE...LITTLE IN THE WAY OF DYNAMICS IS PRESENT THIS AFTERNOON OVER THE REMAINDER OF THE AZ CWFA...SO STORMS ARE HAVING TO FORM OVER HIGHER TERRAIN. AND... WITH A MINIMAL STEERING FLOW FROM THE EAST OR SOUTHEAST...IT WILL BE TOUGH TO MOVE STORMS VERY FAR INTO THE DESERTS. STILL...AIRMASS IS SOPPING WET AND VERY UNSTABLE...SO JUST ABOUT ANYWHERE IN AZ CWFA COULD GET ISOLATED STORMS THIS EVENING. FEW CHANGES ARE EXPECTED TO TAKE PLACE THE NEXT FEW DAYS WITH TERRAIN INDUCEMENT OF CONVECTION THE MAIN TRIGGER. SINCE WRN AZ VORT MAX WILL BE OUT OF PICTURE BY TOMORROW...WILL NOT MENTION CONVECTION W OF MARICOPA COUNTY BY MONDAY. REST OF AZ CWFA WILL BE HANDLED WITH SLIGHT CHANCES. UNFAVORABLE STEERING FLOW WILL CONTINUE INTO EXTENDED...SO WILL KEEP THUNDERSTORM CHANCES GOING FROM ERN LAPAZ AND YUMA COUNTIES EWD... CONTINUED DRY SE CA PORTION OF CWFA. ESTLE
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.