Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 15, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jun 29, 2000, 3:58 PM MST for Maricopa County, Pinal County, Arizona. It was in force for 47 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
- Jun 29, 2000, 3:58 PM MST (22:58 UTC)
- Expired
- Jun 29, 2000, 4:45 PM MST
- In force
- 47 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
Counties Maricopa County, AZ, Pinal County, AZ
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 29, 1:00 PM MST | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phoenix, AZ (KPSR), launched 12:00Z, 11.0 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
- 14 J/kg
- Mixed-layer CIN
- -402 J/kg
- Mixed-layer LCL
- 1890 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 90 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 292258 SVRPHX AZC013-021-292345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 358 PM MST THU JUN 29 2000 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME EASTERN MARICOPA COUNTY IN CENTRAL ARIZONA NORTH CENTRAL PINAL COUNTY IN CENTRAL ARIZONA * UNTIL 445 PM MST * AT 358 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHEAST OF APACHE JUNCTION...SOUTH OF TORTILLA FLAT... MOVING WEST SOUTHWEST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... APACHE JUNCTION AT 415 PM MST DAMAGING WINDS AND LARGE HAIL ARE LIKELY. G|O INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! DNR
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 Jun 29, 3:00 PM MST, 58 minutes earlier.
Area forecast discussion, Jun 29, 3:00 PM MST, 58 minutes before
AZZ020>028-CAZ030>033-300545- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 300 PM MST THU JUN 29 2000 .SYNOPSIS... SOUTHWEST ARIZONA AND SOUTHEAST CALIFORNIA WILL BE UNDER A RELATIVELY LOW PRESSURE AREA ALOFT FOR THE NEXT FEW DAYS...BETWEEN HIGH PRESSURE CENTERS OVER NORTHERN MEXICO AND NORTHWEST ARIZONA. THIS RESULTS IN A NORTHEAST WIND ABOVE SOUTHWEST ARIZONA...ALLOWING STORMS TO MOVE OVER THAT AREA FROM THE HIGH TERRAIN OF NORTHERN ARIZONA...AND A SOUTHWEST WIND ABOVE SOUTHEAST CALIFORNIA...WITH ISOLATED STORMS OVER THE HIGH TERRAIN THERE FAILING TO REACH THE DESERTS. MOST STORMS ARE EXPECTED TO OCCUR DURING THE AFTERNOONS AND EVENINGS. .DISCUSSION... SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL THE AZ PORTION OF THE PHX CWA UNTIL 8PM THIS EVENING. STORMS ARE EXPECTED TO PROPAGATE SWWD OFF THE HIGHER TERRAIN TO THE N AND NE OF CWA. THIS LOOKS REASONABLE ...BUT CHANCES DECREASE GREATLY GOING W. THEREFORE...USING SCATTERED TERMINOLOGY FOR ERN PARTS...DWINDLING TO SLIGHT CHANCE BY THE TIME YOU GET TO THE COLORADO RIVER. AIRMASS VERY UNSTABLE AND MOISTURE IS CERTAINLY NOT LACKING...WITH DEWPOINTS ON THE DESERTS IN THE 60S AND IN 50S IN THE MOUNTAINS. REGION REMAINS IN RELATIVE LOW PRESSURE AREA ALOFT BETWEEN HIGH CELLS OVER NW AZ AND NRN MEX. FLOW MOSTLY NELY ACROSS AZ PORTION OF CWA...BECOMING LIGHT AND VARIABLE FAR W TO SWLY OVER SERN CA. NELY STEERING WIND EXPECTED TO BRING STORMS OFF HIGHER TERRAIN OF NRN AZ TO S-CNTRL AND SW DESERTS THIS EVE. P-WATER REMAINS OVER AN INCH AND A HALF OVER MUCH OF THE AREA. UPPER-LEVEL DIFLUENCE IN COL OVER THE AREA TO AID IN ALLOWIING GOOD VERTICAL STRUCTURE TO STORMS MOVING OVER AREA. EXTENDED PERIOD CALLS FOR SOME DRYING IN THE WRN PORTIONS OF THE CWA AS TROUGH PUSHES IN A BIT...BUT ERN PORTIONS MAY BE IN FOR TROUBLE AS TROUGH PROVIDES ADDITIONAL DYNAMICS TO ACT ON AN ALREADY IN PLA~CE MOISTURE FIELD. DO NOT BELIEVE TROUGH WILL BE STRONG ENOUGH TO PUSH FAR ENOUGH EWD TO DRY OUT THE ERN PORTIONS OF THE CWA. WILT
In the hours before
Special weather statement, Jun 29, 10:28 AM MST, 5 hours 30 minutes before
AZZ022>024-027-028-300030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 1028 AM MST THU JUN 29 2000 ...THERE IS A POSSIBILITY OF HAZARDOUS WEATHER WEATHER IN MARICOPA COUNTY...SOUTHERN GILA COUNTY AND NORTHWEST PINAL COUNTY LATE THIS AFTERNOON INTO THIS EVENING... THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE HIGHER TERRAIN OF NORTHERN AND CENTRAL ARIZONA THIS AFTERNOON. SOME OF THE STORMS ARE EXPECTED TO MOVE OFF THE HIGH TERRAIN AND TOWARD THE SOUTHWEST TO THE LOWER DESERT OF SOUTH-CENTRAL ARIZONA THIS EVENING. STORMS OVER THE HIGH TERRAIN OF SOUTHERN GILA COUNTY...FAR NORTHEAST MARICOPA COUNTY AND FAR NORTHERN PINAL COUNTY ARE EXPECTED TO BRING PRIMARILY LOCALLY HEAVY RAIN...WITH SOME HAIL AND GUSTY WIND EVENTS ALSO POSSIBLE...BY LATE THIS AFTERNOON. STORMS MOVING OFF THE HIGHER TERRAIN TO THE LOWER DESERTS BY THIS EVENING WILL PRODUCE LOCALLY HEAVY RAIN AND STRONG WIND...WITH HAIL A SLIGHT POSSIBILITY. STORM SPOTTER ACTIVATION MAY BE NECESSARY LATER TODAY. WILT
Special weather statement, Jun 29, 10:28 AM MST, 5 hours 30 minutes before
AZZ022>024-027-028-300030- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE PHOENIX AZ 1028 AM MST THU JUN 29 2000 ...THERE IS A POSSIBILITY OF HAZARDOUS WEATHER IN MARICOPA COUNTY... SOUTHERN GILA COUNTY AND NORTHWEST PINAL COUNTY LATE THIS AFTERNOON INTO THIS EVENING... THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE HIGHER TERRAIN OF NORTHERN AND CENTRAL ARIZONA THIS AFTERNOON. SOME OF THE STORMS ARE EXPECTED TO MOVE OFF THE HIGH TERRAIN AND TOWARD THE SOUTHWEST TO THE LOWER DESERT OF SOUTH-CENTRAL ARIZONA THIS EVENING. STORMS OVER THE HIGH TERRAIN OF SOUTHERN GILA COUNTY...FAR NORTHEAST MARICOPA COUNTY AND FAR NORTHERN PINAL COUNTY ARE EXPECTED TO BRING PRIMARILY LOCALLY HEAVY RAIN...WITH SOME HAIL AND GUSTY WIND EVENTS ALSO POSSIBLE...BY LATE THIS AFTERNOON. STORMS MOVING OFF THE HIGHER TERRAIN TO THE LOWER DESERTS BY THIS EVENING WILL PRODUCE LOCALLY HEAVY RAIN AND STRONG WIND...WITH HAIL A SLIGHT POSSIBILITY. STORM SPOTTER ACTIVATION MAY BE NECESSARY LATER TODAY. WILT
Special weather statement, Jun 29, 11:32 AM MST, 4 hours 26 minutes before
AZZ022>024-027-028-300030- SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE PHOENIX AZ 1028 AM MST THU JUN 29 2000 ...THERE IS A POSSIBILITY OF HAZARDOUS WEATHER IN MARICOPA COUNTY... SOUTHERN GILA COUNTY AND NORTHWEST PINAL COUNTY LATE THIS AFTERNOON INTO THIS EVENING... THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE HIGHER TERRAIN OF NORTHERN AND CENTRAL ARIZONA THIS AFTERNOON. SOME OF THE STORMS ARE EXPECTED TO MOVE OFF THE HIGH TERRAIN AND TOWARD THE SOUTHWEST TO THE LOWER DESERT OF SOUTH-CENTRAL ARIZONA THIS EVENING. STORMS OVER THE HIGH TERRAIN OF SOUTHERN GILA COUNTY...FAR NORTHEAST MARICOPA COUNTY AND FAR NORTHERN PINAL COUNTY ARE EXPECTED TO BRING PRIMARILY LOCALLY HEAVY RAIN...WITH SOME HAIL AND GUSTY WIND EVENTS ALSO POSSIBLE...BY LATE THIS AFTERNOON. STORMS MOVING OFF THE HIGHER TERRAIN TO THE LOWER DESERTS BY THIS EVENING WILL PRODUCE LOCALLY HEAVY RAIN AND STRONG WIND...WITH HAIL A SLIGHT POSSIBILITY. STORM SPOTTER ACTIVATION MAY BE NECESSARY LATER TODAY. WILT
Special weather statement, Jun 29, 3:01 PM MST, 57 minutes before
AZZ020>028-292345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 301 PM MST THU JUN 29 2000 ...SEVERE THUNDERSTORM WATCH NUMBER 514 IS IN EFFECT UNTIL 800 PM MST FOR SOUTH CENTRAL AND SOUTHWEST ARIZONA... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR SOUTHWEST AND SOUTH CENTRAL ARIZONA...VALID UNTIL 800 PM MST TONIGHT. THE SEVERE THUNDERSTORM WATCH INCLUDES LA PAZ...MARICOPA... GILA...PINAL AND YUMA COUNTIES. CITIES IN THE SEVERE WEATHER WATCH INCLUDE THE GREATER PHOENIX AREA...GLOBE...SUPERIOR... FLORENCE...CASA GRANDE...GILA BEND...YUMA...EHRENBERG...PARKER AND QUARTZSITE. THIS AFTERNOON...SCATTERED STRONG THUNDERSTORMS SHOULD DEVELOP OVER SOUTHERN GILA AND NORTHEAST MARICOPA COUNTY. SOME OF THESE THUNDERSTORMS COULD BECOME SEVERE...WITH DAMAGING HIGH WINDS...LARGE HAIL AND HEAVY RAINFALL...AS THEY MOVE SLOWLY TO THE SOUTHWEST. LATER THIS AFTERNOON...MORE THUNDERSTORMS SHOULD DEVELOP WEST AND SOUTHWEST OF PHOENIX BETWEEN GILA BEND AND YUMA...AS WELL AS THE AREA FROM WICKENBURG WEST TO PARKER. AS STRONG THUNDERSTORMS APPROACH...GO INDOORS. DO NOT DRIVE IN FLOODED ROADS. DNR
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 7:44 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 46 min |
| Jun 29, 3:34 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 61 min |
| Jun 29, 4:48 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 47 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; the sounding from the Mesonet's radiosonde archive.