Alert archive / Arizona / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 35, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 14, 2001, 6:52 PM MST for Yuma County, Arizona. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Aug 14, 2001, 6:52 PM MST (01:52 UTC)
- Expired
- Aug 14, 2001, 7:30 PM MST
- In force
- 38 min
- Issued by
- NWS Phoenix, AZ
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Yuma County, AZ
The radar
The Yuma radar (KYUX), 57 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 14, 4:00 PM MST | Severe Thunderstorm Watch | SPC | 5 hr |
The text
As transmitted, in the capitals the NWS used until 2016.
719 WUUS55 KPSR 150154 SVRPHX AZC027-150230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 652 PM MST TUE AUG 14 2001 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL YUMA COUNTY IN SOUTHWEST ARIZONA.. INCLUDING THE DOME VALLEY AND WELLTON. * UNTIL 730 PM MST * AT 645 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 11 MILES NORTHEAST OF FORTUNA FOOTHILLS...MOVING SOUTH AT 10 MPH. DAMAGING MICROBURST WINDS ARE LIKELY WITH THIS STORM. VERY HEAVY RAIN IS ALSO POSSIBLE. TAKE COVER IN A SUBSTANTIAL SHELTER UNTIL THE STORM PASSES. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN PHOENIX. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MST TUESDAY EVENING FOR SOUTHWESTERN ARIZONA. LAT...LON 3278 11438 3265 11423 3289 11390 3305 11409
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, 4:05 PM MST, 2 hours 47 minutes earlier.
Area forecast discussion, Aug 14, 4:05 PM MST, 2 hours 47 minutes before
AZZ020>028-CAZ030>033-150545- SOUTHWEST ARIZONA/SOUTHEAST CALIFORNIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 405 PM MST TUE AUG 14 2001 .SYNOPSIS... ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS CAN BE EXPECTED THIS EVENING...OVER SOUTH-CENTRAL AND SOUTHWEST ARIZONA. MEANWHILE... DRIER AND MORE STABLE AIR OVER SOUTHEAST CALIFORNIA WILL LIMIT EVENING STORMS TO THE LOWER COLORADO RIVER VALLEY. . UPPER LEVEL HIGH PRESSURE PUSHING IN FROM THE WEST WILL LEAD TO HIGHER DAYTIME TEMPERATURES BUT LESS HUMIDITY. DRIER AIR EXPECTED TO INFILTRATE MOST OF ARIZONA BY THURSDAY...FOR DECREASING CHANCES OF DAILY THUNDERSTORMS. BY EARLY NEXT WEEK...THE HIGH WILL SHIFT TOWARD THE EAST AND WILL ALLOW MOISTURE AND THUNDERSTORMS TO RETURN TO THE FORECAST AREA. .DISCUSSION... ACTIVE LATE AFTERNOON AND EVENING SHAPING UP FOR THE ARIZONA PORTION OF THE CWA TODAY. SO FAR...VERY STRONG-LOOKING STORMS SEEM TO BE STRUGGLING TO PRODUCE SEVERE CRITERIA. BUT WITH ABUNDANT MOISTURE AND STRONGER THAN NORMAL NORTHEASTERLY STEERING FLOW...EXPECT TO SEE STORMS PRIMARILY IN ZONES 21...22...23...AND 24 DURING THE NEXT SEVERAL HOURS. SPC WILL BE ISSUING A WATCH BOX FROM THE LOWER COLORADO RIVER VALLEY WESTWARD TO WESTERN MARICOPA COUNTY. PHOENIX METRO LEFT OUT OF WATCH DUE TO TIMING SINCE STORMS ARE ALREADY HERE AND WILL END SOONER. ON WEDNESDAY...STEERING FLOW REMAINS NORTHEASTERLY...BUT MOISTURE IS ADVERTISED TO RETREAT SOUTHEASTWARD. HOWEVER...THERE SHOULD BE ENOUGH MOISTURE AROUND TO GET STORMS OVER THE HIGHER TERRAIN WHICH CAN THEN PROPAGATE INTO THE LOWER ELEVATIONS OF SOUTH-CENTRAL ARIZONA. BELIEVE AVN TOO QUICK WITH DRYING AND HAS SHOWN A BIAS IN THAT REGARD. BY THURSDAY...DRYING SHOULD LEAD TO A LOW GRADE MONSOON DAY. WITH THE DRYING WILL COME HIGHER TEMPERATURES. IN THE EXTENDED...12Z AVN SHOWS MORE OF A SOUTHWESTERLY FLOW INFLUENCING OUR CWA THAN 00Z MRF. THUS PUSHED BACK RETURN OF STORM CHANCE FOR MANY OF THE ZONES. ECMWF SUPPORTS THIS AS WELL. JAMISON
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 5:44 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 21 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2001Every severe thunderstorm warning in 2001
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.