Alert archive / Arizona / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 12, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jun 20, 2000, 4:35 PM MST for Cochise County, Arizona. It was in force for 40 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
- Jun 20, 2000, 4:35 PM MST (23:35 UTC)
- Expired
- Jun 20, 2000, 5:15 PM MST
- In force
- 40 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), 40 km from the middle of the area, began a volume at 23:34 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, 11.6 hours before the alert went out and 80 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
- 178 J/kg
- Mixed-layer CIN
- -225 J/kg
- Mixed-layer LCL
- 1762 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
333 WUUS55 KTWC 202335 SVRTUS AZC003-210015- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 435 PM MST TUE JUN 20 2000 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN COCHISE COUNTY IN ARIZONA THIS INCLUDES SIERRA VISTA * UNTIL 515 PM MST * AT 427 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR FT HUACHUCA...OR ABOUT 2 MILES NORTHWEST OF SIERRA VISTA...MOVING NORTH AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... HUACHUCA CITY AT 450 PM MST SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH... DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND HEAVY RAIN. LAT...LON 3146 11045 3147 11026 3182 11027 3180 11044
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 Jun 20, 2:10 PM MST, 2 hours 25 minutes earlier.
Area forecast discussion, Jun 20, 2:10 PM MST, 2 hours 25 minutes before
SOUTHEAST ARIZONA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TUCSON AZ 210 PM MST TUE JUN 20 2000 SYNOPSIS...DEEP MOISTURE FROM THE GULF OF CALIFORNIA AND NORTHERN MEXICO WILL CONTINUE ACROSS SOUTHEAST ARIZONA THIS WEEK FOR A DAILY THREAT OF SHOWERS AND THUNDERSTORMS. LOCALLY HEAVY RAINFALL CAN BE EXPECTED WITH SOME OF THESE STORMS. DISCUSSION...IMPULSE MOVING FROM NORTHERN MEXICO INTO SOUTHERN ARIZONA WITH CONVECTIVE ACTIVITY FILLING IN ACROSS PIMA COUNTY AND SANTA CRUZ COUNTIES. NICE LITTLE CATALYST TAPPING INTO OUR MORNING POTENTIAL HAS KEPT US CLOUDY ALL DAY WITH PERIODS OF SHOWERS...AND ABOUT 7 TO 9 DEGREES COOLER. FAR EASTERN AREAS HAVE HAD A MORE TYPICAL DEVELOPMENT...MORNING AND EARLY AFTERNOON HEATING WITH AFTERNOON AND EVENING THUNDERSTORMS. FROM TUCSON WEST MORE LIKE LOTS OF CLOUDS AND PERIODS OF SHOWERS...ISOLATED TO SCATTERED THUNDERSTORMS. AS THAT IMPULSE SHIFTS OVERHEAD THIS AFTERNOON AND EVENING WE ARE SEEING A LITTLE MORE ORGANIZATION CROSSING THE BORDER AND COULD VERY WELL SUSTAIN ACTIVITY OVERNIGHT. OTHERWISE IT DOESNT LOOK LIKE THE MOISTURE IS GOING AWAY ANYTIME SOON. WITH SUCH AN EARLY START PRECIPITATED BY BUD...ONE MIGHT EXPECT A DRY SPELL BEFORE WE REALLY GET STARTED. THE MOISTURE CONTINUES TO HANG ON AND COULD BE REINFORCED BY INDIRECT INFLUENCE FROM HURRICANE CARLOTTA DOWN AROUND 15N. MEYER .TWC...NONE.
In the hours before
Special weather statement, Jun 20, 10:45 AM MST, 5 hours 50 minutes before
AZZ019-029>035-210600-
HAZARDOUS WEATHER OUTLOOK...SOUTHEAST ARIZONA CONVECTIVE OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
1045 AM MST TUE JUN 20 2000
*CONDITIONAL* *CONDITIONAL*
COUNTY AREAL PROBABILITY RAIN GREATER THAN STORM
COVERAGE OF SEVERE 1.00 2.00 MOTION
COCHISE 40 25 60 10 N 10
GRAHAM 40 25 60 10 N 10
GREENLEE 50 25 70 10 N 10
TUCSON/ERN PIMA 45 25 65 10 N 10
TOHONO OODHAM 40 25 60 10 N 10
SOUTHEAST PINAL 35 25 60 10 N 10
WESTERN PIMA 30 10 60 10 N 10
SANTA CRUZ 40 25 65 10 N 10
SYNOPSIS...DEEP MOISTURE FROM THE GULF OF CALIFORNIA AND NORTHERN
MEXICO WILL CONTINUE TO FUEL THUNDERSTORMS ACROSS SOUTHEAST TODAY
AND TONIGHT. LOCALLY HEAVY RAINFALL CAN BE EXPECTED WITH SOME OF
THESE STORMS.
*****************************************************************
KEY...
AREAL COVERAGE - PERCENT OF COUNTY OR AREA THAT WILL EXPERIENCE
THUNDERSTORMS
PROB OF SEVERE - THE PROBABILITY THAT ANY ONE OF THE STORMS WILL
REACH SEVERE LEVELS (DAMAGING WIND AND/OR
LARGE HAIL)
RAIN GRTR THAN - THE PROBABILITY THAT ANY ONE OF THE STORMS WILL
PRODUCE RAIN EXCEEDING 1 INCH OR 2 INCHES IN
ANY LOCATION
STORM MOTION - GENERAL DIRECTION TO WHICH THE STORMS WILL
LIKELY MOVE AND SPEED IN MPH
NOTE...PRODUCT IS NOT UPDATED.
VALID TIME IS FROM 10:45 AM TO 12 MIDNIGHT OF THE DAY OF ISSUANCE.
THIS PRODUCT IS NOT TO BE USED IN PLACE OF SEVERE THUNDERSTORM OR
FLASH FLOOD WARNINGS OR WATCHES. THIS PRODUCT IS ONLY USED FOR
OUTLOOK PURPOSES. CORRESPONDING GRAPHICS MAY BE FOUND ON THE NWS
TUCSON INTERNET PAGE AT
HTTP://WWW.WRH.NOAA.GOV/TUCSON/THUNDER/SWO.SHTML
END/
NNNNThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 10:32 AM MST | Severe Thunderstorm Warning | TWC | Pinal | 43 min |
| Jun 20, 11:48 AM MST | Severe Thunderstorm Warning | TWC | Pinal | 42 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.