Alert archive / Arizona / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 3, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 11, 1993, 1:11 PM MST for Pima County, Arizona. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- Jul 11, 1993, 1:11 PM MST (20:11 UTC)
- Expired
- Jul 11, 1993, 2:15 PM MST
- In force
- 64 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 8.2 hours before the alert went out and 84 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
- 676 J/kg
- Mixed-layer CIN
- -63 J/kg
- Mixed-layer LCL
- 1396 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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.
In the hours before
Special weather statement, Jul 11, 11:29 AM MST, 1 hour 42 minutes before
AZC003-019-023-112130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1129 AM MST SUN JUL 11 1993 AT 11:10 AM SIGNIFICANT THUNDERSTORM ACTIVITY WAS NOTED IN SANTA CRUZ...SOUTHERN COCHISE AND EASTERN PIMA COUNTIES. LIGHTNING DETECTORS...WEATHER RADAR AND RAIN GUAGES SHOWED SOME OF THE STRONGEST THUNDERSTORM CELLS JUST 25 MILES SOUTHWEST OF TUCSON OVER THE KEYSTONE PEAK AREA. A RAIN GUAGE ON THE PEAK MEASURED OVER AN INCH OF RAIN IN LESS THAN 45 MIN. THERE WAS VERY SLOW NORTHWEST MOVEMENT OF THESE STORMS WHICH CAN RESULT IN VERY HEAVY LOCAL RAINFALL. THIS ACTIVITY IS EXPECTED TO BE ONLY THE START OF A VERY WEATHER ACTIVE DAY FOR THESE AREAS. CAUTION SHOULD BE EXERCISED IF A THUNDERSTORM APPROACHES YOUR AREA. REMEMBER THUNDERSTORMS OFTEN HARBOR DANGEROUS LIGHTNING...HAIL AND STRONG GUSTY WIND AS WELL AS HEAVY RAINFALL. STAY TUNED TO YOUR FAVORITE NEWS SOURCE IF ANY FLASH FLOOD WATCHES OR WARNINGS SHOULD NEED TO BE ISSUED. CARTER
Special weather statement, Jul 11, 11:31 AM MST, 1 hour 40 minutes before
AZC003-019-023-112130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 1129 AM MST SUN JUL 11 1993 AT 11:10 AM SIGNIFICANT THUNDERSTORM ACTIVITY WAS NOTED IN SANTA CRUZ...SOUTHERN COCHISE AND EASTERN PIMA COUNTIES. LIGHTNING DETECTORS...WEATHER RADAR AND RAIN GUAGES SHOWED SOME OF THE STRONGEST THUNDERSTORM CELLS JUST 25 MILES SOUTHWEST OF TUCSON OVER THE KEYSTONE PEAK AREA. A RAIN GUAGE ON THE PEAK MEASURED OVER AN INCH OF RAIN IN LESS THAN 45 MIN. THERE WAS VERY SLOW NORTHWEST MOVEMENT OF THESE STORMS WHICH CAN RESULT IN VERY HEAVY LOCAL RAINFALL. THIS ACTIVITY IS EXPECTED TO BE ONLY THE START OF A VERY WEATHER ACTIVE DAY FOR THESE AREAS. CAUTION SHOULD BE EXERCISED IF A THUNDERSTORM APPROACHES YOUR AREA. REMEMBER THUNDERSTORMS OFTEN HARBOR DANGEROUS LIGHTNING...HAIL AND STRONG GUSTY WIND AS WELL AS HEAVY RAINFALL. STAY TUNED TO YOUR FAVORITE NEWS SOURCE IF ANY FLASH FLOOD WATCHES OR WARNINGS SHOULD NEEdD TO BE ISSUED. CARTER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 2:40 PM MST | Flash Flood Warning | TWC | Pima | 60 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1993Every severe thunderstorm warning in 1993
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.