Alert archive / Arizona / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 13, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 13, 1994, 2:53 PM MST for Pima County, Arizona. It was in force for 67 min.
The area
The counties it named.
The facts
- Issued
- Aug 13, 1994, 2:53 PM MST (21:53 UTC)
- Expired
- Aug 13, 1994, 4:00 PM MST
- In force
- 67 min
- Issued by
- NWS Tucson, AZ
- Area
- Whole counties
County Pima County, AZ
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 9.9 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
- 484 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 1901 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUS 132154 RRA SVRTUS AZC019-132300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON ARIZONA 253 PM MST SAT AUG 13 1994 THE NATIONAL WEATHER SERVICE IN TUCSON ARIZONA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM MST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL ARIZONA ...EASTERN PIMA COUNTY TUCSON WEATHER RADAR AND LIGHTNING DETECTION EQUIPMENT HAVE INDICATED A STRONG THUNDERSTORM IN EASTERN PIMA COUNTY. IT IS LOCATED ABOUT 20 MILES NORTHEAST OF TUCSON AND IS APPROACHING THE REDINGTON PASS AREA AT ABOUT 15 MILES PER HOUR. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING2 WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS. BARTOLOME
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, Aug 13, 1:24 PM MST, 1 hour 29 minutes before
AZZ009-010-132330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 124 PM MST SAT AUG 13 1994 ...WIDESPREAD THUNDERSTORM DEVELOPMENT IS OCCURING OVER COCHISE, SANTA CRUZ, AND FAR EASTERN PIMA COUNTIES... AT 118 PM MST, NATIONAL WEATHER SERVICE RADAR AND LIGHTNING DETECTION SHOWED WIDESPREAD THUNDERSTORM DEVELOPMENT ACROSS COCHISE, SANTA CRUZ, AND FAR EASTERN PIMA COUNTY. THE STRONGEST DEVELOPMENT WAS OCCURING ABOUT 10 MILES NORTHWEST OF DOUGLAS AND ABOUT 5 MILES NORTH OF FORT HUACHUCA IN COCHISE COUNTY. ANOTHER CELL WAS LOCATED ABOUT 10 MILES NORTH OF NOGALES IN SANTA CRUZ COUNTY. THE THUNDERSTORMS WERE MOVING SLOWLY WEST AT ABOUT 10 MPH. LOCALIZED HEAVY RAINFALL, STRONG GUSTY WIND, AND OCCASIONAL CLOUD-TO-GROUND LIGHTNING STRIKES WERE DETECTED. A DOUGLAS WEATHER OBSERVER REPORTED WIND GUSTS TO 29 MPH AT 1257 PM. THUNDERSTORM DEVELOPMENT WILL BE ON THE INCREASE THIS AFTERNOON AND IS ANTICIPATED TO AFFECT EASTERN PIMA COUNTY, POSSIBLY INCLUDING THE GREATER TUCSON AREA IN THE LATE AFTERNOON HOURS. JAMES
Special weather statement, Aug 13, 1:25 PM MST, 1 hour 28 minutes before
AZZ009-010-132330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON ARIZONA 124 PM MST SAT AUG 13 1994 ...WIDESPREAD THUNDERSTORM DEVELOPMENT IS OCCURING OVER COCHISE, SANTA CRUZ, AND FAR EASTERN PIMA COUNTIES... AT 118 PM MST, NATIONAL WEATHER SERVICE RADAR AND LIGHTNING DETECTION SHOWED WIDESPREAD THUNDERSTORM DEVELOPMENT ACROSS COCHISE, SANTA CRUZ, AND FAR EASTERN PIMA COUNTY. THE STRONGEST DEVELOPMENT WAS OCCURING ABOUT 10 MILES NORTHWEST OF DOUGLAS AND ABOUT 5 MILES NORTH OF FORT HUACHUCA IN COCHISE COUNTY. ANOTHER CELL WAS LOCATED ABOUT 10 MILES NORTH OF NOGALES IN SANTA CRUZ COUNTY. THE THUNDERSTORMS WERE MOVING SLOWLY WEST AT ABOUT 10 MPH. LOCALIZED HEAVY RAINFALL, STRONG GUSTY WIND, AND OCCASIONAL CLOUD-TO-GROUND LIGHTNING STRIKES WERE DETECTED. A DOUGLAS WEATHER OBSERVER REPORTED WIND GUSTS TO 29 MPH AT 1257 PM. THUNDERSTORM DEVELOPMENT WILL BE ON THE INCREASE THIS AFTERNOON AND IS ANTICIPATE|D TO AFFECT EASTERN PIMA COUNTY, POSSIBLY INCLUDING THE GREATER TUCSON AREA IN THE LATE AFTERNOON HOURS. JAMES
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 1:53 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 52 min |
| Aug 13, 3:55 PM MST | Severe Thunderstorm Warning | TWC | Pima | 50 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 1994Every severe thunderstorm warning in 1994
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.