Alert archive / Georgia / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 78, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 25, 2010, 1:36 PM EDT for Irwin County, Georgia. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 25, 2010, 1:36 PM EDT (17:36 UTC)
- Expired
- Jun 25, 2010, 2:15 PM EDT
- In force
- 39 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
County Irwin County, GA
The nearest sounding before it
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.6 hours before the alert went out and 228 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
- 1409 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1153 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 9:40 AM EDT, 3 hours 56 minutes earlier.
Area forecast discussion, Jun 25, 9:40 AM EDT, 3 hours 56 minutes before
AREA FORECAST DISCUSSION...RETRANSMITTED NATIONAL WEATHER SERVICE TALLAHASSEE FL 940 AM EDT FRI JUN 25 2010 .UPDATE...RUC ANALYSIS CONTINUED TO SHOW MID AND LOW LEVEL RIDGING OVER THE REGION. RADAR AND SATELLITE SHOWED A COUPLE OF SHOWERS AND THUNDERSTORMS OVER THE COASTAL WATERS THIS MORNING WITH CLEAR TO PARTLY CLOUDY SKIES OVER INLAND PORTIONS OF THE CWA. TEMPERATURES ARE ON THE RISE ALREADY APPROACHING 80 IN MANY PLACES. EXPECT CONDITIONS SIMILAR TO YESTERDAY WITH HIGHS IN THE UPPER 90S AND LIGHT AND VARIABLE WINDS SHIFTING TO SOUTHERLY THIS AFTERNOON. DAYTIME HIGHS COMBINED WITH DEWPOINTS AROUND 70 WILL CONTRIBUTE TO HEAT INDICES OVER 100 FOR MUCH OF THE REGION. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE AGAIN THIS AFTERNOON AND SHOULD BE A BIT MORE WIDESPREAD THAN YESTERDAY AS THE SEABREEZE PUSHES INLAND LATER THIS AFTERNOON. UPDATED GRIDS TO REFLECT INCREASED SKIES AND POPS THIS AFTERNOON AND TO BRING IN LATEST OBS FROM AROUND THE REGION. THE 12Z SOUNDING FROM TLH SHOWED A DEEP MOIST LAYER FROM THE SURFACE TO 500 MB AND PWAT OF 1.77 INCHES. MID LEVELS HAVE MOISTENED UP CONSIDERABLY SINCE YESTERDAY AND THIS SHOULD ALLOW FOR DEEPER AND MORE WIDESPREAD CONVECTIVE DEVELOPMENT THIS AFTERNOON. IN ADDITION...LATEST WRF RUN DEPICTED WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY IN A CORRIDOR FROM NORTH OF APALACHICOLA INTO SOUTH-CENTRAL GEORGIA. SKIES WERE ALSO INCREASED FOR THE AFTERNOON TO ACCOUNT FOR GREATER CONVECTIVE COVERAGE. && .MARINE...WITH THE RIDGE AXIS SITUATED ALONG THE NORTHERN GULF COAST...LIGHT EASTERLY FLOW WILL CONTINUE INTO SATURDAY. BY SUNDAY...WINDS WILL VEER TO THE SOUTHEAST AND INCREASE SLIGHTLY AS A TROPICAL WAVE MOVES INTO THE SOUTHERN GULF OF MEXICO. THE ONSHORE FLOW WILL CONTINUE INTO THE MIDDLE OF NEXT WEEK. AT THIS TIME...WINDS ARE FORECAST TO REMAIN BELOW HEADLINE CRITERIA WITH SEAS STAYING AT OR BELOW 4 FEET. && .AVIATION...THROUGH 12Z SAT. VFR CONDITIONS ARE EXPECTED FOR MUCH OF THE TAF CYCLE. THIS AFTERNOON..EXPECT SCT SHRA/TSRA TO DEVELOP ALONG AND AHEAD OF THE SEA BREEZE. TSRA MAY BRING GUSTY WINDS AND BRIEF MVFR/IFR VSBYS THROUGH THE EARLY EVENING HOURS. ACTIVITY WILL DIMINISH BY TONIGHT WITH POTENTIAL FOR FOG DEVELOPMENT THROUGH THE EARLY SATURDAY MORNING. OVERALL IMPACT SHOULD BE MINOR WITH MVFR VSBYS AT SOME TERMINALS. REMNANT FOG WILL BEGIN TO LIFT THROUGH SATURDAY MORNING. && .FIRE WEATHER...RELATIVE HUMIDITY VALUES ONCE AGAIN TODAY ALONG THE INTERSTATE 10 CORRIDOR ARE EXPECTED TO DROP INTO THE UPPER 30 TO 40 PERCENT RANGE...BUT REMAIN ABOVE CRITICAL VALUES. ONE MORE RELATIVELY DRY RH DAY CAN BE EXPECTED FOR SATURDAY BEFORE MOISTURE LEVELS INCREASE INTO NEXT WEEK. NO RED FLAG CONCERNS ARE EXPECTED THROUGH THE FORECAST PERIOD. && .PREV DISCUSSION... 317 AM EDT FRI JUN 25 2010 .SHORT TERM (TODAY THROUGH SUNDAY)...DEEP LAYER RIDGING REMAINS SITUATED ACROSS THE DEEP SOUTH THIS MORNING. THIS PATTERN WILL CHANGE LITTLE THROUGH SATURDAY RESULTING IN A CONTINUATION OF THE HOT TEMPERATURES AND BELOW NORMAL RAIN CHANCES. OUTSIDE OF SCATTERED SEABREEZE CONVECTION IN FLORIDA LATE THIS AFTERNOON...A WEAK SFC TROUGH ACROSS CENTRAL GEORGIA MAY TRIGGER A FEW SOUTH GA/AL STORMS AS WELL. TEMPERATURES WILL PUSH INTO THE UPPER 90S ONCE AGAIN THIS AFTERNOON. NOT MUCH WILL CHANGE FOR SATURDAY EXCEPT FOR POSSIBLY A SLIGHT INCREASE IN LOW LEVEL EASTERLY FLOW. THIS FLOW PATTERN WILL DO LITTLE TO HELP GENERATE AFTERNOON CONVECTION...AND TEMPS WILL ONCE AGAIN RISE INTO THE UPPER 90S. BY SUNDAY...THE UPPER RIDGE BEGINS TO SLIDE EAST WITH THE SFC RIDGE AXIS LIFTING A BIT NORTH. THIS ALLOWS FOR A MORE SOUTHEASTERLY LOW LEVEL FLOW. IN ADDITION...DEEP LAYER MOISTURE ASSOCIATED WITH A TROPICAL WAVE WILL BEGIN TO APPROACH COASTAL AREAS. THESE FACTORS SHOULD COMBINE FOR AN INCREASE IN POPS SUNDAY AFTERNOON AND AT LEAST A DEGREE OR TWO DROP IN THE HIGH TEMPERATURES. .LONG TERM...(SUNDAY NIGHT THROUGH FRIDAY). THE LONG TERM PERIOD OF THE FORECAST CONTINUES TO REMAIN UNCERTAIN...THOUGH IT LOOKS LIKE THE MODELS MAY BE FINALLY TRYING TO CONVERGE ON A SIMILAR SOLUTION. THERE STILL ARE SOME NOTICEABLE DIFFERENCES WITH RESPECT TO HOW THE MODELS HANDLE THE TROPICAL SYSTEM IN THE NORTHWEST CARIBBEAN AND THE QUANTITY OF TROPICAL MOISTURE ASSOCIATED WITH IT. SOME MODELS STILL PREFER A WEAKER SOLUTION...WHILE OTHERS DEVELOP THE WAVE INTO A TROPICAL STORM/HURRICANE BUT PREFER A MORE WESTWARD OR SOUTHERN TRACK THROUGH THE PERIOD. WHILE THE RUN TO RUN CONSISTENCY AMONGST INDIVIDUAL MODELS HAS BEEN IMPROVING...IT STILL LACKS ENOUGH CONSISTENCY TO RESULT IN A HIGH CONFIDENCE FORECAST. THE 24/12Z EURO CAUSES SOME PROBLEMS WITH THE INHERITED FORECAST. IT PREFERS TO KEEP WHATEVER MOVES OUT OF THE NORTHWEST CARIBBEAN WEAK UNTIL IT REACHES THE SOUTHWEST GULF...IT ALSO DIRECTS MOST OF THE DEEP LAYER TROPICAL MOISTURE TO THE SOUTHWEST OF OUR REGION. THIS RESULTS IN A SLIGHTLY DRIER FORECAST THAN PREVIOUSLY INDICATED. THE 25/00Z GFS STILL CONTINUES TO PREFER MORE OF AN OPEN WAVE SOLUTION WITH A CONSIDERABLE INFLUX OF TROPICAL MOISTURE BY MONDAY. A QUICK ANALYSIS OF THE LATEST 25/00Z EURO SHOWS VERY LITTLE DEVIATION FROM THE PREVIOUS RUN...AND THIS WOULD SEEM TO SUPPORT THE MORE SOUTHERLY TRACK AND SLIGHTLY DRIER SOLUTION THAT WILL BE DEPICTED IN THIS FORECAST PACKAGE. EVEN THOUGH THE MODEL SPREAD CONTINUES TO BE LARGE...THE CONTINUED WEST NORTHWEST TRACK OF THE WAVE WOULD TEND TO FAVOR A MORE SOUTHERN SOLUTION...AND LIKELY ALSO RESULT IN A SLIGHT DECREASE IN AVAILABLE DEEP LAYER MOISTURE. THEREFORE...WILL OPT TO UNDERCUT THE GFS POPS ONLY SLIGHTLY ON MONDAY AND TUESDAY. THIS WILL STILL RESULT IN A HIGH POP CHANCE ON MONDAY...WITH SLIGHTLY ABOVE CLIMO POPS CONTINUING THROUGH THE REMAINDER OF THE FORECAST WITH THE APPROACH OF A FRONTAL BOUNDARY. THE EURO SOLUTION CONTINUES TO BE THE PREFERRED ONE WITH RESPECT TO THE FRONTAL BOUNDARY AND EAST COAST TROF MOVING INTO THE REGION BY WEDNESDAY/THURSDAY. THIS STALLING FRONTAL BOUNDARY COULD POSE SOME HEAVY RAIN ISSUES...ESPECIALLY IF ANY REMNANT TROPICAL MOISTURE CAN FEED INTO THIS SYSTEM. A FRONTAL PASSAGE IS NOT ANTICIPATED WITH THIS SYSTEM. TEMPERATURES WILL GENERALLY BE AT OR SLIGHTLY BELOW CLIMATOLOGY FOR HIGHS BY MONDAY AND CONTINUING INTO THURSDAY...DUE TO SCATTERED TO NUMEROUS AFTERNOON SHOWERS AND THUNDERSTORMS. && .PRELIMINARY POINT TEMPS/POPS... TALLAHASSEE 97 74 96 74 95 / 30 20 30 20 50 PANAMA CITY 92 77 92 77 92 / 20 20 30 20 40 DOTHAN 97 74 95 74 95 / 30 20 20 20 40 ALBANY 98 74 97 74 96 / 30 20 20 20 40 VALDOSTA 96 73 96 73 95 / 30 20 20 20 40 CROSS CITY 95 73 95 73 95 / 30 20 30 20 50 APALACHICOLA 91 77 91 77 91 / 20 20 20 20 40 && .TAE WATCHES/WARNINGS/ADVISORIES... AL...NONE. GA...NONE. FL...NONE. GM...NONE. && AUSTIN/CAMP/GODSEY
Hazardous weather outlook, Jun 25, 4:03 AM EDT, 9 hours 33 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TALLAHASSEE FL 403 AM EDT FRI JUN 25 2010 ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-261000- COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON- HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF- INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY- INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON- COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON- COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY- RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN- EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE- DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- APALACHEE BAY OR COASTAL WATERS FROM KEATON BEACH TO OCHLOCKONEE RIVER FL OUT TO 20 NM- COASTAL WATERS FROM APALACHICOLA TO DESTIN FL OUT 20 NM- COASTAL WATERS FROM OCHLOCKONEE RIVER TO APALACHICOLA FL OUT TO 20 NM- COASTAL WATERS FROM SUWANNEE RIVER TO KEATON BEACH OUT 20 NM- WATERS FROM APALACHICOLA TO DESTIN FL FROM 20 TO 60 NM- WATERS FROM SUWANNEE RIVER TO APALACHICOLA FL FROM 20 TO 60 NM- 403 AM EDT FRI JUN 25 2010 /303 AM CDT FRI JUN 25 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ALABAMA... SOUTHWEST AND SOUTH CENTRAL GEORGIA...AND THE FLORIDA BIG BEND AND PANHANDLE...AND ADJACENT COASTAL WATERS. .DAY ONE...TODAY AND TONIGHT... HIGH PRESSURE AT THE SURFACE AND ALOFT WILL HINDER THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS ACROSS THE AREA TODAY WITH ONLY SCATTERED ACTIVITY EXPECTED. CONDITIONS ARE NOT FAVORABLE FOR ORGANIZED SEVERE STORMS OR FLOODING AT THIS TIME. AS USUAL FOR THE SUMMERTIME...THE MAIN THREAT TO LIVES AND PROPERTY WILL BE LIGHTNING. TEMPERATURE WILL RISE INTO THE MID AND UPPER 90S THIS AFTERNOON. HEAT INDICES WILL APPROACH 105 DEGREES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... BELOW NORMAL RAIN CHANCES WILL CONTINUE THROUGH SATURDAY. THIS WILL ALLOW AFTERNOON TEMPERATURES TO RISE INTO THE MID AND UPPER 90S...WITH HEAT INDICES AROUND 105. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO INCREASE LATE THIS WEEKEND INTO EARLY NEXT WEEK AS DEEPER MOISTURE OVERSPREADS THE REGION. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE WEBSITE ON THE INTERNET AT WEATHER.GOV...THEN CLICK ON YOUR AREA OF INTEREST ON THE NATIONAL MAP. CAMP
In the hours before
Special weather statement, Jun 25, 1:09 PM EDT, 27 minutes before
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</html>The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 5:45 PM EDT | Areal Flood Advisory | TAE | Leon | 2 hr |
Nearby
Severe Thunderstorm Warnings in Georgia, 2010Every severe thunderstorm warning in 2010
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.