Severe Thunderstorm Warning 32, NWS Phoenix, AZ

Issued

Jul 23, 2002, 6:51 PM MST (01:51 UTC)

Expired

Jul 23, 2002, 7:30 PM MST

In force

39 min

Issued by

NWS Phoenix, AZ

Area

Counties, with a storm outline in the text

County Pinal County, AZ

The Phoenix radar (KIWA), 31 km from the middle of the area, began a volume at 01:55 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WUUS55 KPSR 240151 CCA
SVRPSR
AZC021-240230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTION FOR COUNTY UGC CODE
NATIONAL WEATHER SERVICE PHOENIX AZ
630 PM MST TUE JUL 23 2002

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL PINAL COUNTY IN SOUTH CENTRAL ARIZONA

* UNTIL 730 PM MST

* AT 625 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS IN NORTH CENTRAL PINAL COUNTY INCLUDING
  FLORENCE JUNCTION...FLORENCE AND CASA GRANDE AREAS. THE
  THUNDERSTORMS WERE MOVING NORTHWEST AT 25 MPH.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE
FOR DAMAGING WIND...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE
SHOULD TAKE SHELTER...PREFERABLY IN A STRONG BUILDING AWAY FROM
WINDOWS.

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 3269 11148 3280 11129 3333 11133 3343 11181 3323 11199

NWS Phoenix, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 23, 3:15 PM MST, 3 hours 36 minutes earlier.

AZZ020>028-CAZ030>033-240545-

SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PHOENIX AZ
315 PM MST TUE JUL 23 2002

.SYNOPSIS...
HIGH PRESSURE ALOFT WILL CONTINUE OVER SOUTHERN UTAH THROUGH
THURSDAY. THE CLOCKWISE FLOW OF AIR AROUND THE HIGH IS BRINGING AN
INCREASE IN HUMIDITY FROM THE EAST. AS A RESULT...SCATTERED SHOWERS
AND THUNDERSTORMS WILL SPREAD WEST OVER THE AREA THROUGH TONIGHT
WITH A CHANCE OF MAINLY AFTERNOON AND EVENING SHOWERS AND
THUNDERSTORMS CONTINUING THROUGH THURSDAY. A PACIFIC LOW PRESSURE
SYSTEM WILL MOVE EAST AND BRING A DRYING TREND TO SOUTHEAST
CALIFORNIA FRIDAY...WITH DRIER AIR SPREADING EAST TO SOUTH-CENTRAL
ARIZONA THIS WEEKEND.

.DISCUSSION...
HIGH PRESSURE ALOFT WILL CONTINUE OVER SOUTHERN UTAH THROUGH
THURSDAY. EXPECT MORE HUMID AIR TO MOVE IN FROM THE EAST AND
SOUTHEAST IN THE CLOCKWISE FLOW AROUND THE HIGH PRESSURE CENTER.
ALSO...THERE MAY BE ADDITIONAL LOW LEVEL MOISTURE FROM THE GULF OF
CALIFORNIA IN THE NEXT DAY OR SO. THE AIRMASS IS UNSTABLE ENOUGH
WITH THE MOISTURE INCREASE TO SUPPORT THUNDERSTORMS DEVELOPING FROM
THE EAST AND SOUTHEAST INTO THE GREATER PHOENIX AREA TONIGHT...AND
EVEN FURTHER WEST AND NORTHWEST. A HAZARDOUS WEATHER OUTLOOK WAS
ISSUED FOR SOUTH-CENTRAL AND SOUTHWEST ARIZONA...INCLUDING THE
GREATER PHOENIX AREA...FOR THIS AFTERNOON AND TONIGHT. AS USUAL IT
IS UNDER THE SPECIAL WEATHER STATEMENT HEADER PHXSPSPSR...WMO HEADER
WWUS85 KPSR. A PACIFIC LOW PRESSURE SYSTEM IS EXPECTED TO MOVE EAST
OVER THE WESTERN UNITED STATES BRINGING DRIER AIR OVER SOUTHEAST
CALIFORNIA FRIDAY...WITH DRIER AIR SPREADING EAST TO SOUTHWEST AND
SOUTH-CENTRAL ARIZONA THIS WEEKEND...AND SOME CORRESPONDING INCREASE
IN DAYTIME HIGH TEMPERATURES.

PSR...NONE

ELLIS

Severe Thunderstorm Warnings in Arizona, 2002Every severe thunderstorm warning in 2002

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.