Alert archive / Georgia / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 41, NWS Atlanta, GA
NWS Atlanta, GA issued this severe thunderstorm warning at Mar 29, 1991, 9:05 AM EST for DeKalb County, Georgia. It was in force for 40 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 29, 1991, 9:05 AM EST (14:05 UTC)
- Expired
- Mar 29, 1991, 9:45 AM EST
- In force
- 40 min
- Issued by
- NWS Atlanta, GA
- Area
- Whole counties
County DeKalb County, GA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 29, 9:20 AM EST | Thunderstorm Wind 0 | De Kalb, GA |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Athens Municipal, GA (KAHN), launched 12:00Z, 2.1 hours before the alert went out and 88 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
- 450 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 293 m²/s²
- 0-3 km storm-relative helicity
- 356 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KATL 291406 SVRATL GAC089-291445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ATLANTA GA 905 AM EST FRI MAR 29 1991 THE NATIONAL WEATHER SERVICE IN ATLANTA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST GEORGIA ...DEKALB COUNTY A LINE OF SEVERE THUNDERSTORMS WAS MOVING FROM NORTH FULTON COUNTY TOWARD DEKALB COUNTY AT 45 MPH. THESE STORMS HAVE A HISTORY OF PRODUCING DAMAGE EARLIER THIS MORNING IN THE WEST ATLANTA METROPOLITAN AREA. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WIT4H LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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, Mar 29, 5:55 AM EST, 3 hours 10 minutes before
GAZALL-300000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GEORGIA 600 AM EST FRIDAY MARCH 29 1991 ...OUTBREAK OF TORNADOES AND SEVERE THUNDERSTORMS EXPECTED TODAY INTO TONIGHT OVER MUCH OF THE SOUTHEASTERN UNITED STATES... THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY MISSOURI IS FORECASTING AN OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES TODAY INTO TONIGHT OVER A LARGE PART OF THE SOUTHEASTERN U.S. THE STATES WHICH ARE MOST LIKELY TO EXPERIENCE THE BRUNT OF THE SEVERE THUNDERSTORM AND TORNADO ACTIVITY INCLUDE PARTS OF ALABAMA ...AND MOST OF GEORGIA...SOUTH CAROLINA AND NORTH CAROLINA. A LOW PRESSURE AREA LOCATED OVER MISSISSIPPI THIS MORNING WILL DEEPEN AND MOVE RAPIDLY NORTHEAST TODAY TO A POSITION OVER NORTH CAROLINA BY TONIGHT. A STRONG COLD FRONT IS FORECAST TO MOVE EASTWARD ACROSS THE SOUTHEAST STATES THIS AFTERNOON INTO TONIGHT PROVIDING THE MAIN FOCUS FOR SEVERE THUNDERSTORM DEVELOPMENT. A VERY STRONG UPPER LEVEL JETSTREAM MOVING FROM TEXAS TO NORTH CAROLINA WILL INTERACT WITH A STRONG SOUTHERLY FLOW OF WARM AND MOIST AIR FROM THE GULF OF MEXICO. THIS COMBINATION OF CONTRASTING AIR MASSES IS EXPECTED TO PROVIDE THE NECESSARY INGREDIENTS FOR AN EXPLOSIVE OUTBREAK OF SEVERE THUNDERSTORMS AND TORNADOES TODAY INTO TONIGHT. SEVERE THUNDERSTORMS ARE EXPECTED TO MOVE ACROSS PARTS OF ALABAMA AND MISSISSIPPI THIS MORNING WHERE TORNADO WATCHES HAVE ALREADY BEEN ISSUED. DAYTIME HEATING WILL SET THE STAGE FOR INTENSIFICATION OF THUNDERSTORMS DURING THE AFTERNOON AND EVENING FROM GEORGIA INTO SOUTH CAROLINA AND NORTH CAROLINA. THE COMBINATION OF A DEEPENING LOW PRESSURE SYSTEM...A VERY STRONG JETSTREAM ALOFT AND A MOIST UNSTABLE AIRMASS AHEAD OF THE COLD FRONT IS EXPECTED TO BE SUFFICIENT TO BRING A THREAT OF POTENTIALLY DESTRUCTIVE TORNADOES TO THE SOUTHEASTERN U.S. DAMAGING THUNDERSTORM WINDS AND LARGE HAIL AREA ALSO POSSIBLE WITH THESE THUNDERSTORMS. IT IS EMPHASIZED THAT THIS IS A DANGEROUS WEATHER SITUATION FOR MUCH OF ALABAMA...GEORGIA... SOUTH CAROLINA...AND NORTH CAROLINA. ALL PERSONS IN THE THREATENED AREA ARE URGED TO REVIEW SAFETY RULES ...AND LISTEN TO RADIO..TV..OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WATCHES OR WARNINGS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION FOR THE AFFECTED AREAS AND SHOULD BE MONITORED VERY CLOSELY.
Special weather statement, Mar 29, 7:16 AM EST, 1 hour 49 minutes before
GAZ005-006-ALZ012-291315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBUS GA 713 AM EST FRI MAR 29 1991 ...THUNDERSTORMS INCREASING OVER WEST CENTRAL GEORGIA AND EAST CENTRAL ALABAMA... AT 710 AM EST WEATHER RADAR INDICATED SCATTERED THUNDERSTORMS AROUND HURTSBORO AND EUFAULA ALABAMA MOVING EAST AT 40 MPH. THESE AND OTHER THUNDERSTORMS ARE EXPECTED TO CONTINUE OVER CENTRAL GEORGIA AND CENTRAL ALABAMA FOR THE NEXT FEW HOURS. PEOPLE IN THOSE AREAS...INCLUDING COLUMBUS AND PHENIX CITY...SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS THIS MORNING. THE LARGER THUNDERSTORMS ARE LIKELY TO CONTAIN VERY HEAVY RAINFALL... SMALL HAIL...STRONG GUSTY WINDS. SINCE SEVERE WEATHER MAY DEVELOP OVER CENTRAL GEORGIA AND CENTRAL ALABAMA TODAY...PEOPLE IN THOSE AREAS SHOULD ALSO MONITOR NOAA WEATHER RADIO AND OTHER LOCAL TELEVISION AND RADIO STATIONS FOR THE LATEST UPDATES FROM THE NATIONAL WEATHER SERVICE.
Special weather statement, Mar 29, 7:29 AM EST, 1 hour 36 minutes before
GAZ001-003-005-291330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ATLANTA GEORGIA 730 AM EST FRI MAR 29 1991 ...A TORNADO WATCH IS IN EFFECT UNTIL 1 PM EST FOR MOST OF NORTH GEORGIA... AT 725 AM EST AN AREA OF RAIN WITH A FEW THUNDERSTORMS COVERED MOST OF NORTH GEORGIA FROM NORTH OF A LINE FROM CLAYTON TO CEDARTOWN. HOWEVER A STRONGER LINE OF THUNDERSTORMS WAS IN ALABAMA JUST WEST OF CEDARTOWN MOVING TO THE NORTHEAST AT 45 MPH. THIS REMAINS A DANGEROUS SITUATION AS SEVERE THUNDERSTORMS OR TORNADOES COULD DEVELOP VERY QUICKLY. RESIDENTS OF NORTH GEORGIA SHOULD REMAIN ALERT TO THE WEATHER AND SEEK SAFE SHELTER INDOORS IF THREATENING WEATHER DEVELOPS OR A WARNING IS ISSUED.
Local storm report, Mar 29, 7:31 AM EST, 1 hour 34 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE ATLANTA GA 730 AM EST FRI MAR 29 1991 WARNING.... SEVERE THUNDERSTORM COUNTY..... FLOYD SOURCE..... PUBLIC REPORT TO FLOYD COUNTY 911 TIME...... BETWEEN 6 AND 630 AM LOCATION... NEAR THE TOWN OF SILVER CREEK DAMAGE..... TREES DOWN ACROSS ROADWAY HAIL....... NONE REPORTED INJURIES... NOT REPORTED REMARKS.... NONE WARNING.... SEVERE THUNDERSTORM COUNTY..... POLK SOURCE..... VOLUNTEER FIRE DEPT. TIME....... BETWEEN 6 AND 630 AM LOCATION... TOWN OF ESOM HILL DAMAGE..... NUMEROUS POWER AND PHONE LINES DOWN HAIL....... NONE REPORTED INJURIES... NOT REPORTED REMARKS.... NONE
Special weather statement, Mar 29, 8:08 AM EST, 57 minutes before
GAZ006-291515- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MACON GA 809 AM EST FRI MAR 29 1991 ...TORNADO WATCH IN EFFECT UNTIL 1 PM EST FOR MOST OF NORTH GEORGIA INCLUDING MONROE...JASPER...AND PUTNAM COUNTIES... A TORNADO WATCH REMAINS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON FOR MOST OF NORTH GEORGIA. AT 8 AM EST WEATHER SERVICE RADAR SHOWED ONLY LIGHT TO MODERATE RAIN MOVING INTO CENTRAL GEORGIA. HOWEVER...POSSIBLE SEVERE THUNDERSTORMS WERE OCCURRING OVER WEST CENTRAL AND NORTHWEST GEORGIA. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT AROUND 50 MPH. THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY IS FORECASTING AN OUTBREAK OF SEVERE THUNDERSTORM AND TORNADO A^CTIVITY FOR MOST OF GEORGIA TODAY. PERSONS IN THE THREATENED AREA...INCLUDING ALL OF CENTRAL GEORGIA...ARE URGED TO REVIEW SAFETY RULES AND LISTEN TO RADIO...TV...OR NOAA WEATHER RADIO FOR STATEMENTS OR POSSIBLE WATCHES OR WARNINGS.
Local storm report, Mar 29, 9:02 AM EST, 3 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ATLANTA GA
901 AM EST FRI MAR 29 1991
WARNING.... SEVERE THUNDERSTORM
COUNTY..... DOUGLAS
SOURCE..... DOUGLAS COUNTY EMA
TIME...... 825-830 AM EST
LOCATION... DOUGLASVILLE, ESPECIALLY NEAR HIGHWAY 92
BUT GENERALLY ENTIRE COUNTY
DAMAGE..... NUMEROUS VEHICLES OVERTURNED, ROOFS BLOWN OFF HOUSES
DOWNED POWER LINES, HOUSES INVOLVED IN FIRES
HAIL....... NONE REPORTED
INJURIES... NOT 0REPORTED
REMARKS.... ENTIRE DOUGLAS COUNTY EMERGENCY UNITS HAVE DEPLOYEDThe office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 5:48 AM EST | Severe Thunderstorm Warning | FFC | Floyd, Polk | 42 min |
| Mar 29, 7:46 AM EST | Severe Thunderstorm Warning | FFC | Carroll | 29 min |
| Mar 29, 8:29 AM EST | Severe Thunderstorm Warning | FFC | Cobb | 31 min |
| Mar 29, 8:31 AM EST | Severe Thunderstorm Warning | FFC | Douglas | 29 min |
| Mar 29, 8:37 AM EST | Tornado Warning | FFC | Cobb | 38 min |
| Mar 29, 8:46 AM EST | Severe Thunderstorm Warning | FFC | Fulton | 44 min |
| Mar 29, 9:16 AM EST | Severe Thunderstorm Warning | FFC | Coweta, Fayette | 44 min |
| Mar 29, 9:24 AM EST | Severe Thunderstorm Warning | FFC | Gwinnett | 51 min |
| Mar 29, 9:29 AM EST | Severe Thunderstorm Warning | FFC | Clayton, Fulton | 46 min |
| Mar 29, 9:32 AM EST | Severe Thunderstorm Warning | FFC | Jasper, Monroe | 58 min |
| Mar 29, 9:39 AM EST | Severe Thunderstorm Warning | FFC | Butts, Lamar | 51 min |
| Mar 29, 9:41 AM EST | Severe Thunderstorm Warning | FFC | Crawford | 64 min |
| Mar 29, 9:55 AM EST | Severe Thunderstorm Warning | FFC | Morgan, Newton, Oconee, Walton | 65 min |
| Mar 29, 10:14 AM EST | Severe Thunderstorm Warning | FFC | Banks, Franklin, Habersham, Jackson, Stephens | 61 min |
| Mar 29, 10:14 AM EST | Severe Thunderstorm Warning | FFC | Barrow | 61 min |
| Mar 29, 10:20 AM EST | Severe Thunderstorm Warning | FFC | Meriwether, Troup | 25 min |
| Mar 29, 11:01 AM EST | Severe Thunderstorm Warning | FFC | Elbert, Franklin, Hart, Madison | 119 min |
| Mar 29, 11:01 AM EST | Severe Thunderstorm Warning | FFC | Clarke, Oconee, Oglethorpe | 119 min |
| Mar 29, 11:01 AM EST | Severe Thunderstorm Warning | FFC | Stephens | 119 min |
| Mar 29, 11:12 AM EST | Tornado Warning | FFC | Monroe | 48 min |
| Mar 29, 11:32 AM EST | Severe Thunderstorm Warning | FFC | Jasper, Jones | 58 min |
| Mar 29, 11:32 AM EST | Severe Thunderstorm Warning | FFC | Crawford | 58 min |
| Mar 29, 11:50 AM EST | Severe Thunderstorm Warning | FFC | Bibb, Houston, Peach | 55 min |
| Mar 29, 12:36 PM EST | Severe Thunderstorm Warning | FFC | Twiggs | 69 min |
| Mar 29, 12:45 PM EST | Severe Thunderstorm Warning | FFC | Glascock, Jefferson, Washington | 60 min |
| Mar 29, 12:50 PM EST | Severe Thunderstorm Warning | FFC | Houston | 55 min |
| Mar 29, 12:50 PM EST | Severe Thunderstorm Warning | FFC | Wilkinson | 55 min |
| Mar 29, 1:42 PM EST | Severe Thunderstorm Warning | FFC | Burke, Emanuel, Jefferson, Johnson | 33 min |
| Mar 29, 2:24 PM EST | Severe Thunderstorm Warning | FFC | Upson | 36 min |
| Mar 29, 2:25 PM EST | Severe Thunderstorm Warning | FFC | Burke, Jenkins, Screven | 35 min |
| Mar 29, 3:19 PM EST | Severe Thunderstorm Warning | FFC | Bibb, Crawford, Peach | 56 min |
Nearby
Severe Thunderstorm Warnings in Georgia, 1991Every severe thunderstorm warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.