Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 24, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 30, 2000, 8:03 PM MST for Maricopa County, Pinal County, Arizona. It was in force for 42 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
- Jul 30, 2000, 8:03 PM MST (03:03 UTC)
- Expired
- Jul 30, 2000, 8:45 PM MST
- In force
- 42 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
Counties Maricopa County, AZ, Pinal County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 30, 8:30 PM MST | Thunderstorm Wind 60 E | Coolidge, AZ | Winds damaged the roof of a trailer. |
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
Phoenix, AZ (KPSR), launched 00:00Z, 3.1 hours before the alert went out and 34 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
- 184 J/kg
- Mixed-layer CIN
- -171 J/kg
- Mixed-layer LCL
- 3378 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -38 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KPSR 310309 SVRPHX AZC013-021-310335- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 803 PM MST SUN JUL 30 2000 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME EAST CENTRAL MARICOPA COUNTY IN SOUTH CENTRAL ARIZONA NORTH CENTRAL PINAL COUNTY IN SOUTH CENTRAL ARIZONA * UNTIL 845 PM MST * AT 758 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9 MILES EAST OF FLORENCE JUNCTION...OR ABOUT 4 MILES WEST OF SUPERIOR...MOVING WEST AT 30 MPH. VERY LARGE HAIL AND DAMAGING WINDS TO NEAR 60 MPH IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. THE THUNDERSTORMS ARE APPROACHING THE EAST VALLEY AND COULD AFFECT THE APACHE JUNCTION AND QUEEN CREEK AREAS BY 830 PM MST. INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN PHOENIX. LAT...LON 3327 11167 3316 11116 3"335 11110 3355 11153
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 Jul 30, 2:45 PM MST, 5 hours 18 minutes earlier.
Area forecast discussion, Jul 30, 2:45 PM MST, 5 hours 18 minutes before
AZZ020>028-CAZ030>033-310545- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 245 PM MST SUN JUL 30 2000 .SYNOPSIS... UPPER LEVEL HIGH PRESSURE OVER THE GREAT BASIN REGION WILL GIVE AN EAST NORTHEAST FLOW TO THE ENTIRE FORECAST AREA THIS WEEK. MOISTURE LEVELS ARE EXPECTED TO INCREASE DURING THE NEXT COUPLE OF DAYS...AND REMAIN HIGH ENOUGH TO HELP FEED LATE AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS. THIS THUNDERSTORM THREAT WILL EVENTUALLY REACH ALL THE WAY INTO SOUTHEAST CALIFORNIA BY MONDAY NIGHT AND THEREAFTER. MEANWHILE...AFTERNOON TEMPERATURES WILL CONTINUE TO BE NEAR LATE JULY NORMALS. .DISCUSSION... AFTERNOON CONVECTION HAS BEEN QUITE SLOW TO FORM AND SO FAR HAS BEEN PRETTY WIMPY. SATELLITE PIX SHOW WEAK CBS FORMING ALONG MOGOLLON RIM THEN DISSIPATING QUICKLY WITH ANVIL TOPS SCOOTING SWWD. MOISTURE...OR RELATIVE LACK THEREOF...CONTINUES TO BE THE ONLY NEGATIVE FACTOR TO WHAT OTHERWISE SHOULD BE A VERY ACTIVE...POSSIBLY SEVERE...DAY. 12Z MODELS HINTED THAT SOME BRIEF MID LEVEL DRYING HAS OCCURED OVER ERN AZ TODAY...AND WITH THE WIMPY CONVECTION...THIS MAY BE THE CASE. HOWEVER...APPROACHING IMPULSE OVER NM...ALONG WITH OTHER POSSIBLE RIPPLES EMBEDDED IN THE NELY FLOW...HAS US STILL HOPING FOR SOME EVENING DESERT CONVECTION. ISSUED AN HAZARDOUS WEATHER OUTLOOK EARLIER...DUE TO THE SEVERE MICROBURST POTENTIAL WITH ANY STORMS THAT DO PROPOGATE OFF THE RIM OUR DIRECTION THIS EVENING. RAINFALL WITH ANY STORMS TONIGHT WILL BE LIGHT AND SPOTTY DUE TO RELATIVELY DRY LOWER LEVELS. THEREFORE...CUT POPS TO SLIGHT CHANCE VALUES...WITH THE THREAT OF STORMS OCCURING SOMEWHAT HIGHER. RAISED POPS UP TO CHANCE CATEGORIES MONDAY NIGHT AS WE SHOULD BE A LITTLE WETTER BY THEN. ALSO...STARTED TO INTRODUCE SOME MINOR POPS INTO SE CA BY TOMORROW NIGHT AS DEEP E/NELY FLOW COULD TAKE SOME ACTION THAT FAR WEST. THE EXTENDED WILL BE LEFT AzS IS...WITH A CHANCE OF STORMS GOING EACH DAY AS UPPER HIGH TO OUR N STAYS PUT. ESTLE
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 6:36 PM MST | Severe Thunderstorm Warning | PSR | Gila | 39 min |
| Jul 30, 7:20 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 45 min |
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.