Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 30, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 7, 2000, 5:20 PM MST for Cochise County, Arizona. It was in force for 35 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 7, 2000, 5:20 PM MST (00:20 UTC)
- Expired
- Aug 7, 2000, 5:55 PM MST
- In force
- 35 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 115 km from the middle of the area, began a volume at 00:23 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 00:00Z, 0.3 hours before the alert went out and 131 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
- 218 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 2571 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 65 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 KTWC 080022 SVRTUS AZC003-080055- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 520 PM MST MON AUG 7 2000 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN COCHISE COUNTY IN ARIZONA * UNTIL 555 PM MST * AT 520 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 18 MILES NORTHEAST OF WILLCOX MOVING SOUTH SOUTHWEST AT 5 MPH. THIS STORM WILL CROSS INTERSTATE 10 NEAR THE JUNCTION OF U.S. HIGHWAY 191 AROUND 530 PM MST. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN TUCSON. LAT...LON 3241 10972 3212 10994 3212 10907 3242 10910
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 Tucson, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 7, 2:30 PM MST, 2 hours 50 minutes earlier.
Area forecast discussion, Aug 7, 2:30 PM MST, 2 hours 50 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 230 PM MST MON AUG 7 2000 SYNOPSIS...THE ATMOSPHERE OVER SOUTHEAST ARIZONA WILL REMAIN VERY MOIST FOR THE NEXT SEVERAL DAYS. AFTERNOON AND EVENING THUNDERSTORMS WILL DEVELOP EACH DAY IN THE MOUNTAINS WITH SOME STORMS MOVING INTO VALLEY LOCATIONS. SOME OF THE STORMS WILL BE STRONG WITH HEAVY RAINFALL AND GUSTY WINDS. DISCUSSION...HAVE WORDED FORECAST FOR AS STRONG AS POSSIBLE WITHOUT STEPPING INTO THE WATCH AREA BECAUSE OF SOME NAGGING THOUGHTS ABOUT WHETHER THE STORMS WILL GET OFF THE MOUNTAINS OR NOT. STILL...A LOT OF IMPRESSIVE ITEMS TO DISCUSS...RIM STORMS MUCH MORE IMPRESSIVE THAN LAST TWO DAYS AND SHOWING GOOD MOTION TO SOUTH AND WEST. OTHER STORMS DEVELOPING OVER MOUNTAINS JUST HANGING AROUND WAITING FOR VALLEY CAPE TO CATCH UP. HAVE NOT HAD PWATER/CAPE SATELLITE ESTIMATES SINCE 15Z BUT BELIEVE PWATER STILL NEAR 1.5 INCHES AND CAPE PROBABLY APPROACHING 1000. MID LEVEL CAP WON'T BE TOO MUCH TO OVERCOME AS STORMS MOVE DOWN FROM RIM. INITIAL MOTION OF STORMS MAY BE SLOW ENTERING THE VALLEY AND ACCELERATE SOME AFTER THEY MOVE WEST INTO DESERTS. POTENTIAL FOR HEAVY RAIN GREATEST THREAT BUT CAN'T RULE OUT SEVERE...ESPECIALLY WINDS. SURFACE TEMPS HAVE GONE PAST MODEL FORECAST VALUES. HAVE COOLED AFTERNOON TEMPS AND LOWERED POPS TOMORROW IN ANTICIPATION OF A GOOD DAY TODAY. STILL WITH COLD TEMPS ALOFT AND UPPER LEVEL DISTURBANCE STILL IN THE STATE WE WILL HAVE STORMS TOMORROW...BUT MOST HANGING CLOSE TO MOUNTAINS OR WEAKENING AS THEY ENTER THE VALLEYS. MONSOON FLOW AS SHOWN BY MRF WILL KEEP US IN GOOD PATTERN FOR MORE STORMS SO NO CHANGE TO EXTENDED. .TWC...NONE.
In the hours before
Local storm report, Aug 7, 5:09 PM MST, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON ARIZONA
509 PM MST MON AUG 7 2000
TIME (MST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
415 PM 5 SE FORT THOMAS AZ WIND DAMAGE
08/07/00 Graham ONE HALF ROOF BLOWN OFF HOUSE
(ESTIMATED TIME 415 PM)The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:34 PM MST | Severe Thunderstorm Warning | TWC | Pima | 41 min |
| Aug 7, 6:22 PM MST | Flash Flood Warning | TWC | Pima | 23 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.