Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 42, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 14, 2000, 5:08 PM MST for Pinal County, Arizona. It was in force for 47 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 14, 2000, 5:08 PM MST (00:08 UTC)
- Expired
- Aug 14, 2000, 5:55 PM MST
- In force
- 47 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Pinal County, AZ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 14, 5:35 PM MST | Thunderstorm Wind 60 E | Kelvin, AZ | Thunderstorm winds blew down power poles in Kelvin. |
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, 0.1 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
- 351 J/kg
- Mixed-layer CIN
- -117 J/kg
- Mixed-layer LCL
- 3076 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 34 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 150007 SVRPHX AZC021-150055- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 508 PM MST MON AUG 14 2000 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL PINAL COUNTY IN CENTRAL ARIZONA * UNTIL 555 PM MST * AT 505 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTH OF SUPERIOR... MOVING WEST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... SUPERIOR FLORENCE JUNCTION HIGHWAY 177 SOUTH OF SUPERIOR HIGHWAY 79 SOUTH OF FLORENCE JUNCTION HIGHWAY 60 WEST OF SUPERIOR DAMAGING WINDS AND HEAVY RAIN ARE LIKEgLY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! DS/MH
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 14, 2:55 PM MST, 2 hours 13 minutes earlier.
Area forecast discussion, Aug 14, 2:55 PM MST, 2 hours 13 minutes before
AZZ020>028-CAZ030>033-150545- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 255 PM MST MON AUG 14 2000 .SYNOPSIS... HIGH PRESSURE CENTERED WILL MOVE WEST OVER NEW MEXICO TONIGHT AND TUESDAY...AND ARIZONA WEDNESDAY. THIS WILL CONTINUE A FLOW OF MOIST AND UNSTABLE AIR FROM THE SOUTHEAST AND EAST...WITH A CHANCE OF MAINLY LATE AFTERNOON AND EVENING THUNDERSTORMS AND DESERT DUST STORMS...MOSTLY IN ARIZONA. DRIER AIR ALOFT IS EXPECTED TO MOVE INTO SOUTHEAST CALIFORNIA FOR MOSTLY CLEAR SKIES THERE DURING THE END OF THE WEEK. .DISCUSSION... WITH HIGH PRESSURE CURRENTLY TO OUR EAST...SOMETIMES HARD TO DETECT ...OR PINPOINT EXACT LOCATION OF...LOW PRESSURE SYSTEMS ARE MOVING INTO THE REGION IN A FLOW ALOFT FROM THE SOUTHEAST. ONE SUCH SYSTEM RESULTED IN THUNDERSTORMS OVER MOHAVE COUNTY EARLY THIS MORNING. IT LOOKS AS IF ANOTHER SUCH SYSTEM...FROM NORTHERN MEXICO AND SOUTHWEST NEW MEXICO...WILL ENHANCE THUNDERSTORMS AT LEAST OVER SOUTH-CENTRAL AND PROBABLY SOUTHWEST ARIZONA LATE THIS AFTERNOON AND TONIGHT. WITH THE STEERING FLOW FROM THE SOUTHEAST...WOULD EXPECT ANOTHER GOOD DUST STORM WITH POOR VISIBILITY MOVING UP THE CORRIDOR BETWEEN TUCSON AND PHOENIX. THIS HAS BEEN COVERED IN THE HAZARDOUS WEATHER OUTLOOK THROUGH THIS EVENING. THIS SYSTEM WILL CONTINUE WEST OVER SOUTHWEST ARIZONA TUESDAY AND SOUTHEAST CALIFORNIA TUESDAY NIGHT FOR POSSIBLE ENHANCEMENT OF THUNDERSTORMS IN THERE. IN THE EXTENDED FORECAST PERIOD ...THURSDAY THROUGH SATURDAY...THE HIGH PRESSURE AXIS SHIFTS TO A POSITION EXTENDING FROM NORTHERN BAJA TO THE 4 CORNERS AREA OR SOUTHEAST OF THERE. THIS BRINGS A DRIER FLOW OF AIR FROM THE SOUTHWEST AT LEAST OVER SOUTHEAST CALIFORNIA AND THE LOWER COLORADO RIVER VALLEY...SO AM ONLY MENTIONING THE CHANCE OF THUNDERSTORMS EAST OF THERE IN ARIZONA DURING THE LATTER PART OF THIS WEEK. ELLIS
In the hours before
Special weather statement, Aug 14, 1:47 PM MST, 3 hours 21 minutes before
AZZ020>028-CAZ031-150130- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 148 PM MST (148 PM PDT) MON AUG 14 2000 ...SLIGHT RISK OF DUST STORMS WITH VISIBILITY LESS THAN A QUARTER OF A MILE IN SOUTH-CENTRAL AND SOUTHWEST ARIZONA INTO THIS EVENING... ISOLATED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER SOUTH-CENTRAL AND SOUTHWEST ARIZONA INTO THIS EVENING. AT ANY GIVEN LOCATION... THERE IS A SLIGHT RISK THAT THUNDERSTORM OUTFLOW WILL PRODUCE A DUST STORM WITH VISIBILITY BELOW A QUARTER OF A MILE. THIS INCLUDES MARICOPA...YUMA...LA PAZ AND NORTHWEST PINAL COUNTIES...WHICH INCLUDES THE GREATER PHOENIX AREA...BOUSE...YUMA...AND CASA GRANDE. STORM SPOTTER ACTIVATION MAY BE NECESSARY LATER TODAY. CRAIG ELLIS
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.