Alert archive / Florida / Heat Advisories in 2011
Heat Advisory 10, NWS Tallahassee, FL
NWS Tallahassee, FL issued this heat advisory at Aug 11, 2011, 11:44 AM CDT for 4 counties in Florida. It was in force for 107 min.
The area
The counties it named.
The facts
- Issued
- Aug 11, 2011, 11:44 AM CDT (16:44 UTC)
- Expired
- Aug 11, 2011, 1:31 PM CDT
- In force
- 107 min
- Issued by
- NWS Tallahassee, FL
Counties Bay County, FL, Franklin County, FL, Gulf County, FL, Walton County, FL
The radar
The Eglin Afb radar (KEVX), 64 km from the middle of the area, began a volume at 16:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 4.7 hours before the alert went out and 116 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
- 1045 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 1077 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- -54 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory 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 heat advisory went out at Aug 11, 9:15 AM CDT, 2 hours 29 minutes earlier.
Area forecast discussion, Aug 11, 9:15 AM CDT, 2 hours 29 minutes before
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</html>Hazardous weather outlook, Aug 11, 4:53 AM CDT, 6 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TALLAHASSEE FL 553 AM EDT THU AUG 11 2011 ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-GMZ730-750-755-765-770-775-120100- 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- 553 AM EDT THU AUG 11 2011 /453 AM CDT THU AUG 11 2011/ 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... SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON AND EVENING AND MOVE FROM NORTHWEST TO SOUTHEAST ACROSS THE TRI-STATE REGION. ONE OR TWO STORMS MAY BE STRONG TO BRIEFLY SEVERE. IT WILL BE HOT AGAIN TODAY WITH MAX TEMPERATURES IN THE MID TO UPPER 90S WITH HEAT INDICES GENERALLY IN THE 105 TO 109 DEGREE RANGE. A FEW 110 DEGREE HEAT INDEX READINGS ARE POSSIBLE ESPECIALLY NEAR COASTAL AREAS OF THE FLORIDA PANHANDLE AND BIG BEND. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY... THE OVERALL COVERAGE OF SHOWERS AND THUNDERSTORMS WILL BE LESS THAN SEASONAL NORMALS THROUGH MOST OF THE EXTENDED PERIOD. TEMPERATURES WILL CONTINUE ABOVE SEASONAL LEVELS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. 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. BARRY
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 7:15 PM CDT | Special Weather Statement | TAE | Walton | 60 min |
| Aug 10, 8:01 PM CDT | Special Marine Warning | TAE | 59 min | |
| Aug 11, 12:36 PM CDT | Special Weather Statement | TAE | Walton | 24 min |
| Aug 11, 1:32 PM CDT | Special Weather Statement | TAE | Bay | 43 min |
| Aug 11, 1:34 PM CDT | Special Weather Statement | TAE | Bay | 41 min |
| Aug 11, 2:32 PM CDT | Heat Advisory | TAE | Bay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more | 27 hr |
| Aug 11, 2:44 PM CDT | Special Marine Warning | TAE | 31 min | |
| Aug 11, 2:49 PM CDT | Special Weather Statement | TAE | Lee, Terrell | 56 min |
| Aug 11, 3:12 PM CDT | Severe Thunderstorm Warning | TAE | Lee, Turner, Worth | 33 min |
| Aug 11, 3:48 PM CDT | Special Weather Statement | TAE | Ben Hill, Irwin, Turner | 42 min |
Nearby
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; radar from the NEXRAD Level II archive.