Alert archive / Arizona / Severe Thunderstorm Warnings in 2005
Severe Thunderstorm Warning 21, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 21, 2005, 9:37 PM MST for Maricopa County, Arizona. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2005, 9:37 PM MST (04:37 UTC)
- Expired
- Jul 21, 2005, 10:30 PM MST
- In force
- 53 min
- Issued by
- NWS Phoenix, AZ
- Area
- Counties, with a storm outline in the text
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 34 km from the middle of the area, began a volume at 04:38 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
Phoenix, AZ (KPSR), launched 00:00Z, 4.6 hours before the alert went out and 20 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
- 383 J/kg
- Mixed-layer CIN
- -155 J/kg
- Mixed-layer LCL
- 3079 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS55 KPSR 220437 SVRPSR AZC013-220530- /O.NEW.KPSR.SV.W.0021.050722T0437Z-050722T0530Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 937 PM MST THU JUL 21 2005 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL MARICOPA COUNTY IN SOUTH CENTRAL ARIZONA THIS INCLUDES THE CITIES OF...SCOTTSDALE...PARADISE VALLEY... FOUNTAIN HILLS * UNTIL 1030 PM MST * AT 929 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR FOUNTAIN HILLS...AND MOVING WEST AT 10 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SCOTTSDALE AND FORT MCDOWELL. LAT...LON 3346 11172 3367 11164 3373 11198 3350 11204 $$ LW
1 follow-up statement
000 WWUS55 KPSR 220521 SVSPSR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 1015 PM MST THU JUL 21 2005 AZC013-220530- /O.CON.KPSR.SV.W.0021.000000T0000Z-050722T0530Z/ MARICOPA AZ- 1020 PM MST THU JUL 21 2005 ...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 1030 PM MST FOR EAST CENTRAL MARICOPA COUNTY... AT 1020 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED 6 MILES SOUTHEAST OF SCOTTSDALE...MOVING WEST AT 10 MPH. WIND GUSTS TO 52 MPH WERE REGISTERED AT SCOTTSDALE AIRPORT AT 1001 PM...ALONG WITH REDUCED VISIBILITY TO 1 AND THREE QUARTER MILES IN THUNDERSTORMS AND HEAVY RAINFALL. OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PARADISE VALLEY. LAT...LON 3346 11172 3367 11164 3373 11198 3350 11204 $$ LW
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 9:10 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 65 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2005Every severe thunderstorm warning in 2005
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.