Alert archive / Tennessee / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 150, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Jul 9, 1993, 4:35 PM EDT for Bradley County, Tennessee. It was in force for 55 min.
The area
The counties it named.
The facts
- Issued
- Jul 9, 1993, 4:35 PM EDT (20:35 UTC)
- Expired
- Jul 9, 1993, 5:30 PM EDT
- In force
- 55 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County Bradley County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.6 hours before the alert went out and 191 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
- 1999 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 1088 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCHA 092036 RRA SVRCHA TNC011-092130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHATTANOOGA TN 435 PM EDT FRI JUL 9 1993 THE NATIONAL WEATHER SERVICE IN CHATTANOOGA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST TENNESSEE ...BRADLEY COUNTY WEATHER RADAR INDICATED A SEVERE THUNDERSTORM JUST NORTH OF CLEVELAND MOVING NORTH 10 MILE AN HOUR. ANOTHER POSSIBLE SEVERE THUNDERSTORM WAS IN THE SOUTHWEST CORNER OF BRADLEY COUNTY. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING 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.
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 9, 11:10 AM EDT, 5 hours 25 minutes before
GAZ001>015-092100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 1110 AM EDT FRI JUL 9 1993 TEMPERATURES WELL INTO THE 90S CAN BE EXPECTED ACROSS THE STATE AGAIN THIS AFTERNOON. READINGS AROUND THE CENTURY MARK ARE POSSILBE OVER PORTIONS OF CENTRAL GEORGIA. THE HEAT AND HUMIDITY WILL COMBINE TO GIVE HEAT INDEX VALUES IN THE 100 TO 110 DEGREE RANGE ACROSS THE CENTRAL AND SOUTH... WITH VALUES A FEW DEGREES COOLER ACROSS THE NORTH. A HEAT INDEX OF 105 DEGREES IS CONSIDERED THE LEVEL AT WHICH THE BODY HAS TROUBLE COOLING DOWN. AT THIS LEVEL SUNSTROKE... HEAT CRAMPS OR HEAT EXHAUSTION IS LIKELY. HEATSTROKE IS ALSO POSSIBLE WITH PROLONGED EXPOSURE OR PHYSICAL ACTIVITY. A STATIONARY AREA OF HIGH PRESSURE OVER THE SOUTHEASTERN STATES CONTINUE TO BE RESPONSIBLE FOR KEEPING THE HEAT AND HUMIDITY IN PLACE OVER GEORGIA. PEOPLE PARTICIPATING IN OUTDOOR ACTIVITIES SHOULD TAKE INTO ACCOUNT THE ADDED DISCOMFORT AND PHYSICAL STRESS DUE TO THE HEAT AND HUMIDITY. ALSO REMEMBER THAT ACTIVITIES OR WORK TAKING PLACE IN DIRECT MIDDAY SUNSHINE WILL HAVE AN EFFECT ON THE BODY AS IF THE TEMPERATURE WAS 10 DEGREES WARMER. PEOPLE SHOULD DRESS WITH LIGHT WEIGHT AND LIGHT COLORED CLOTHING... DRINK PLENTY OF WATER OR OTHER NON-ALCOHOL FLUIDS...DONT GET TOO MUCH SUN AND REDUCE OR ELIMINATE STRENUOUS ACTIVITIES. PEOPLE IN PLACES WITH LITTLE VENTILATION AND THOSE IN POOR HEALTH SHOULD TAKE PRECAUTIONS AS PROLONGED EXPOSURE TO THESE CONDITIONS MAY LEAD TO HEAT EXHAUSTION OR POSSIBLE HEAT STROKE.
Special weather statement, Jul 9, 11:25 AM EDT, 5 hours 10 minutes before
GAZ001>015-092100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GA 1110 AM EDT FRI JUL 9 1993 TEMPERATURES WELL INTO THE 90S CAN BE EXPECTED ACROSS THE STATE AGAIN THIS AFTERNOON. READINGS AROUND THE CENTURY MARK ARE POSSILBE OVER PORTIONS OF CENTRAL GEORGIA. THE HEAT AND HUMIDITY WILL COMBINE TO GIVE HEAT INDEX VALUES IN THE 100 TO 110 DEGREE RANGE ACROSS THE CENTRAL AND SOUTH... WITH VALUES A FEW DEGREES COOLER ACROSS THE NORTH. A HEAT INDEX OF 105 DEGREES IS CONSIDERED THE LEVEL AT WHICH THE BODY HAS TROUBLE COOLING DOWN. AT THIS LEVEL SUNSTROKE... HEAT CRAMPS OR HEAT EXHAUSTION IS LIKELY. HEATSTROKE IS ALSO POSSIBLE WITH PROLONGED EXPOSURE OR PHYSICAL ACTIVITY. A STATIONARY AREA OF HIGH PRESSURE OVER THE SOUTHEASTERN STATES CONTINUE TO BE RESPONSIBLE FOR KEEPING THE HEAT AND HUMIDITY IN PLACE OVER GEORGIA. PEOPLE PARTICIPATING IN OUTDOOR ACTIVITIES SHOULD TAKE INTO ACCOUNT THE ADDED DISCOMFORT AND PHYSICAL STRESS DUE TO THE HEAT AND HUMIDITY. ALSO REMEMBER THAT ACTIVITIES OR WORK TAKING PLACE IN DIRECT MIDDAY SUNSHINE WILL HAVE AN EFFECT ON THE BODY AS IF THE TEMPERATURE WAS 10 DEGREES WARMER. PEOPLE SHOULD DRESS WITH LIGHT WEIGHT AND LIGHT COLORED CLOTHING... DRINK PLENTY OF WATER OR OTHER NON-ALCOHOL FLUIDS...DONT GET TOO MUCH SUN AND REDUCE OR ELIMINATE STRENUOUS ACTIVITIES. PEOPLE IN PLACES WITH LITTLE VENTILATION AND THOSE IN POOR HEALTH SHOULD TAKE PRECAUTIONS AS PROLONGED EXPOSURE TO ~THESE CONDITIONS MAY LEAD TO HEAT EXHAUSTION OR POSSIBLE HEAT STROKE.
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 12:38 PM EDT | Severe Thunderstorm Warning | FFC | Grundy | 52 min |
| Jul 9, 1:31 PM EDT | Severe Thunderstorm Warning | FFC | Sequatchie | 44 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 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.