Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 61, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Oct 27, 2000, 2:05 PM MST for Maricopa County, Arizona. It was in force for 50 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
- Oct 27, 2000, 2:05 PM MST (21:05 UTC)
- Expired
- Oct 27, 2000, 2:55 PM MST
- In force
- 50 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 77 km from the middle of the area, began a volume at 21:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 9.1 hours before the alert went out and 198 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 172 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 272104 SVRPHX AZC013-272155- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 205 PM MST FRI OCT 27 2000 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL MARICOPA COUNTY IN CENTRAL ARIZONA * UNTIL 255 PM MST * AT 202 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTH OF CASHION...MOVING NORTH AT 30 MPH. * THE SEVERE THUNDERSTORM WILL AFFECT... CASHION LITCHFIELD PARK TOLLESON WEST PHOENIX GLENDALE DAMAGING WINDS AND LARGE HAIL 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 Oct 27, 9:55 AM MST, 4 hours 10 minutes earlier.
Area forecast discussion, Oct 27, 9:55 AM MST, 4 hours 10 minutes before
AZZ020>028-CAZ030>033-272245- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 955 AM MST FRI OCT 27 2000 .SYNOPSIS... A LOW PRESSURE SYSTEM IS EXPECTED TO BRING SHOWERS AND SCATTERED THUNDERSTORMS TO THE FORECAST AREA TODAY AND THIS EVENING. LOCALLY HEAVY RAIN IS POSSIBLE TODAY...ESPECIALLY OVER HIGHER TERRAIN SITES IN SOUTHWEST AND SOUTH CENTRAL ARIZONA. AFTER A BRIEF BREAK IN THE WEATHER THIS WEEKEND...THE NEXT SYSTEM IN THIS SERIES OF DISTURBANCES IS FORECAST TO BRING A CHANCE OF SHOWERS TO THE AREA EARLY NEXT WEEK...BEGINNING IN SOUTHEAST CALIFORNIA LATE SUNDAY ...SPREADING TO SOUTHWEST ARIZONA ON MONDAY...THEN CLEARING FROM WEST TO EAST ACROSS THE REGION TUESDAY. .DISCUSSION... NEGATIVE TILT TROUGH SYSTEM DIGGING SEWD ALG SW CA/NW BAJA COAST ACCORDING TO LATEST WV IMAGERY. NICE BANDS OF PRECIP HAVE DEVELOPED IN STRONG UVV AREA FRM WCNTRL INTO NW AZ. RADAR ESTIMATES OF WELL IN EXCESS OF AN INCH IN SOME SPOTS TO W OF PHX...COMBINED WITH ANTECEDENT CONDITIONS ...PROMPTED THE ISSUANCE OF FFW FOR CENTENNIAL WASH AREA INTO THIS AFTERNOON. OF COURSE...THIS IS AREA THAT RECEIVED FLOODING RAINS LAST WEEKEND. ALTHOUGH RAINFALL THIS AREA HAS DECREASED... FLOWS HAVE NOT AND SINCE MORE HEAVY RAIN EXPECTED...FFW STILL LOOKS GOOD. REST OF CENTRAL AZ SHOULD STILL SEE INCREASING SHOWERS/TSTMS THROUGH THE AFTERNOON IN STRONG UPPER DIFFLUENT AREA AND GOOD MID LEVEL UVV AHEAD OF MAIN TROUGH. ONE MINOR CONCERN THAT MAY EFFECT LONGEVITY OF HEAVY RAINS IS THE FACT THE FINAL VORT MAX WILL BE TRAVERSING WELL TO OUR S. THIS CUTS OFF STRONG VERTICAL MOTIONS THIS EVENING. SO...IF THIS IS RIGHT...ANY FLOODING-PRODUCING RAINS WOULD PROBABLY OCCUR BEFORE ABOUT 06Z. MAY NEED TO EXTEND FFA FOR ERN CWFA ...LIKE PHX AREA EWD...INTO THE EVENING HOURS...WILL DISCUSS THIS WITH TWC AT BLASTUP TIME. OTHERWISE...CURRENT FORECASTS APPEAR IN GOOD SHAPE...ALTHOUGH WE MAY HAVE RAIN EVENT HANGING ON A BIT TOO LONG TONIGHT AND SAT MORNING WRN AREAS. WILL ALSO LOOK AT THIS IN MORE DETAIL FOR AFTERNOON PACKAGE CONSIDERATIONS. NO UPDATES FOR NOW. ESTLE
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 27, 9:00 AM MST | Flash Flood Warning | PSR | La Paz, Maricopa | 5 hr |
| Oct 27, 12:50 PM MST | Flash Flood Warning | PSR | La Paz, Maricopa | 4 hr |
| Oct 27, 2:41 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 49 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; radar from the NEXRAD Level II archive.