Temperatures in the mid to upper 90s combined with dew points in the lower 70s to produce a three hour period of heat index values of 105 degrees in far northwest Alabama.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS HUN wrote it up.
Temperatures in the mid to upper 90s combined with dew points in the lower 70s to produce a three hour period of heat index values of 105 degrees in far northwest Alabama.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Huntsville, AL wrote its last area forecast discussion before the first event at Jun 23, 10:41 AM CST, 2 hours 19 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE HUNTSVILLE AL 1141 AM CDT TUE JUN 23 2015 .UPDATE... FOR 18Z TAFS && .DISCUSSION... /ISSUED 1059 AM CDT TUE JUN 23 2015/ TEMPERATURES DID NOT WASTE ANYTIME TO JUMP INTO THE UPPER 80S TO 90 DEGREES ALREADY THIS MORNING. WITH DEWPOINTS CURRENTLY IN THE 70S...THE HEAT INDEX IS ALREADY IN THE UPPER 90S IN SOME LOCATIONS. WITH THESE OBS...TEMPS AND HEAT INDEX WILL BE THE HOT TOPIC AGAIN TODAY. A SERIES OF OUTFLOW BOUNDARIES ARE MOVING SOUTHEASTWARD TOWARDS...AND THROUGH...THE TN VALLEY. THEY ARE FROM THE DECAYING MCS THAT WENT THROUGH IL/IN/MI/OH LAST NIGHT PRODUCING TORNADOES...WIND DAMAGE AND FLOODING. ALONG WITH DAYTIME HEATING...THE BOUNDARIES COULD DEVELOP ISOLATED TO SCATTERED CONVECTION THIS AFTERNOON. SHORT TERM MODEL SOUNDINGS SHOW STEEP LEVEL LAPSE RATES...DRY AIR ALOFT...A SMALL CAP AROUND 700MB BUT THERE IS OVER 2000 J/KG OF CAPE. GUSTY WINDS WOULD BE THE MAIN HAZARD WITH ANY OF THE STRONGER STORMS THAT WOULD DEVELOP. WITH THIS...INCREASED POPS FOR THIS AFTERNOON BUT KEPT IT IN THE ISOLATED CATEGORY FOR NOW. THERE IS STILL THE UPPER LEVEL RIDGE IN THE SOUTHERN PLAINS THAT IS SLOWLY BUILDING EASTWARD...BUT IT WILL NOT BE ENOUGH TODAY TO HINDER PRECIP COMPLETELY. SLIGHTLY INCREASED CLOUD COVER FOR EARLY THIS AFTERNOON TO ACCOUNT FOR THE OUTFLOW BOUNDARIES AS SEEN ON VIS SATELLITE. ALSO INCREASED HIGH TEMPS BY A DEGREE OR SO TO ACCOUNT FOR CURRENT TRENDS...TODAYS TEMPS WILL BE MUCH LIKE YESTERDAY. HEAT INDEX VALUES WILL BE UNDER ADVISORY CRITERIA...WITH MOST LOCATIONS SEEING AROUND 100 DEGREES. JMS && .AVIATION... FOR 18Z TAFS... CONDITIONAL PREVAILING VFR CONDITIONS ARE EXPECTED THRU THIS PERIOD. APPARENT HZ LAYER SHOULD REMAIN ABOVE THE SFC, SO NO RESTRICTIONS TO VSBY ARE EXPECTED YET, BUT WILL CONTINUE TO MONITOR. ISOLD TSRA ARE EXPECTED THIS AFTN/EVENING, AND THERE IS SOME POTENTIAL FOR A COMPLEX OF TSRA TO DEVELOP IN SERN MO THIS AFTERNOON AND DROP SE INTO SRN TN AND NRN AL LATER THIS EVENING AND OVERNIGHT. WILL ASSESS THIS POTENTIAL AND ADD TO THE FORECAST IN FUTURE UPDATES IF CONFIDENCE INCREASES. AK && .HUN WATCHES/WARNINGS/ADVISORIES... AL...NONE. TN...NONE. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WEATHER.GOV/HUNTSVILLE.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HUNTSVILLE AL 142 PM CDT TUE JUN 23 2015 ALZ001>010-016-TNZ076-096-097-240100- LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN- MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN- 142 PM CDT TUE JUN 23 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS OF SOUTHERN MIDDLE TENNESSEE. .DAY ONE...THIS AFTERNOON AND TONIGHT... HEAT INDEX VALUES WILL PEAK BETWEEN 95 AND 105 DEGREES THIS AFTERNOON. ISOLATED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. SOME STORMS MAY PRODUCE STRONG GUSTY WINDS AND FREQUENT LIGHTNING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY... SCATTERED THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY AFTERNOON WITH A BETTER CHANCE OF SHOWERS AND THUNDERSTORMS RETURNING FOR THE END OF THE WEEK AND INTO THE WEEKEND. STRONG GUSTY WINDS AND FREQUENT LIGHTNING WILL BE THE MAIN HAZARDS. DANGEROUS HEAT IS EXPECTED THROUGH THURSDAY WITH AFTERNOON HIGH TEMPERATURES IN THE MID TO UPPER 90S. HEAT INDEX VALUES ARE EXPECTED TO REACH AT OR ABOVE 105 DEGREES IN SEVERAL LOCATIONS ALONG AND WEST OF THE INTERSTATE 65 CORRIDOR. HEAT INDEX VALUES OF 95 TO 105 ARE EXPECTED FURTHER EAST. .SPOTTER CALL TO ACTION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS NOT ANTICIPATED AT THIS TIME.
The national radar mosaic for the moment the first event began.
4 heat. Local standard time, as filed.
The heat index reached 105 degrees at Muscle Shoals during a three hour period.
The heat index reached 105 degrees at Muscle Shoals during a three hour period.
The heat index reached 105 degrees at Muscle Shoals during a three hour period.
The heat index reached 105 degrees at Muscle Shoals during a three hour period.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Alabama in 2015Every state in 2015This day in weather historyWarnings in Alabama, June 2015
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 588936, 588937, 588939, 588940.