Alert archive / Florida / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 133, NWS Jacksonville, FL
NWS Jacksonville, FL issued this severe thunderstorm warning at May 18, 2003, 7:15 PM EDT for Gilchrist County, Florida. It was in force for 45 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
- May 18, 2003, 7:15 PM EDT (23:15 UTC)
- Expired
- May 18, 2003, 8:00 PM EDT
- In force
- 45 min
- Issued by
- NWS Jacksonville, FL
- Area
- Counties, with a storm outline in the text
County Gilchrist County, FL
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 18, 1:40 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 11.3 hours before the alert went out and 136 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
- 2020 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -20 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jacksonville, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 18, 3:00 PM EDT, 4 hours 15 minutes earlier.
Area forecast discussion, May 18, 3:00 PM EDT, 4 hours 15 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSONVILLE FL 300 PM EDT SUN MAY 18 2003 PUBLIC...SEVERE THUNDERSTORM WATCH IN EFFECT FOR WHOLE CWA UNTIL 8 PM. AS UPPER LOW DROPS SOUTH TO THE GULF...IMPRESSIVE UPPER DIVERGENT PATTERN COUPLED WITH IMPRESSIVE INSTABILITY PARAMETERS TO RESULT IN A GOOD CHANCE OF STRONG TO SEVERE STORMS THIS EVENING. MAIN CONCERN WILL BE PULSE TYPE SEVERE. GOOD AREA OF CONVERGENCE BETWEEN HIGHWAY 301 AND I-75 WHERE MOST STORMS ARE FIRING UP. HIGHEST POPS WILL BE ACROSS THIS AREA (50 TO 60 PCT) THIS EVE. A FEW STORMS MAY LINGER OVERNITE ACROSS INLAND GA. MONDAY...SIMILAR PATTERN AS TODAY WITH UPPER LOW ENTERING GULF AND STRONG UPPER DIVERGENT PATTERN AND GOOD LOW LEVEL MOISTURE FROM THE SOUTHEAST. HIGHEST POPS INLAND (60 PCT) AND SLIGHTLY LOWER TOWARDS THE COAST. TUESDAY...HAVE LEANED TOWARDS ETA MODEL WHICH KEEPS WEDGE JUST NORTH OF THE AREA...BUT MOIST SE FLOW RESULTING IN A CHC POPS MOST AREAS. WEDNESDAY...COLD APPROACHES FROM THE NW RESULTING IN A CHANCE OF THUNDERSTORMS LATE WEDNESDAY INTO WEDNESDAY NIGHT. EXTENDED...AS AN UPPER TROUGH DIGS SOUTHEAST FROM THE GREAT LAKES TO THE GULF OF MEXICO...FRONTAL BOUNDARY SAGS SOUTHEAST ACROSS THE CWA THURSDAY AND STALLS OVER NORTH FLORIDA FRIDAY. MRF DEVELOPS WAVE ALONG FRONT WHICH MAY ENHANCE PRECIP. NOT SURE TO BUY INTO THAT THIS EARLY...HOWEVER WITH FRONTAL SYSTEM IN THE AREA...WILL GO WITH A CHANCE OF SHOWERS AND THUNDERSTORMS BOTH THURSDAY AND FRIDAY. AS AN UPPER LOW CLOSES OFF IN THE EASTERN U.S. DURING THE WEEKEND THE COLD FRONT PUSHES THROUGH WITH DRIER AIR MOVING IN. HAVE GONE WITH LOW POPS FOR SATURDAY AND A 10 PERCENT POP (SILENT) FOR SUNDAY. MARINE...NO HEADLINES. FIRE WX...NO CONCERNS. .PRELIMINARY POINT TEMPS/POPS... AMG 68 86 66 80 / 60 60 20 50 SSI 71 82 71 79 / 40 50 20 30 JAX 70 86 70 80 / 40 50 20 50 SGJ 72 84 73 80 / 30 40 20 40 GNV 69 90 68 85 / 30 50 30 50 OCF 69 92 68 87 / 30 40 20 50 .JAX... FL...NONE. GA...NONE. PP/JH
Hazardous weather outlook, May 18, 1:49 PM EDT, 5 hours 26 minutes before
FLZ020>025-030>033-035>038-040-GAZ132>136-149>154-162>166-190000- HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE JACKSONVILLE FL 149 PM EDT SUN MAY 18 2003 UPDATED TO INCLUDE SEVERE THUNDERSTORM WATCH NUMBER 413 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST FLORIDA AND SOUTHEAST GEORGIA. .DAY ONE...THIS AFTERNOON AND TONIGHT... ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 8 PM... ...RISK OF RIP CURRENTS AT THE BEACHES ABOVE NORMAL... SEVERE THUNDERSTORM WATCH NUMBER 413 IS IN EFFECT UNTIL 8 PM THIS EVENING. THIS WATCH INCLUDES ALL COUNTIES IN NORTHEAST FLORIDA AND SOUTHEAST GEORGIA AND THE ADJACENT COASTAL WATERS. AN UPPER LEVEL SYSTEM COMBINED WITH THE SEA BREEZE BOUNDARY AND A COLD FRONT JUST TO THE NORTH WILL RESULT IN SCATTERED THUNDERSTORMS ACROSS ALL OF NORTHEAST FLORIDA AND SOUTHEAST GEORGIA THIS AFTERNOON AND EVENING. THE BEST CHANCE OF THUNDERSTORMS WILL BE FROM NEAR THE HIGHWAY 301 CORRIDOR WEST TO THE I-75 CORRIDOR. STORMS MAY BECOME SEVERE WITH LARGE HAIL...DAMAGING WINDS...AND FREQUENT CLOUD TO GROUND LIGHTNING THE MAIN CONCERNS. THE RISK OF RIP CURRENTS AT THE BEACHES WILL BE ABOVE NORMAL. PLEASE REFER TO THE SURF ZONE FORECAST. .DAYS TWO THROUGH SEVEN...TOMORROW THROUGH SATURDAY... A COLD FRONT IS EXPECTED TO MOVE INTO THE REGION THURSDAY AND FRIDAY INCREASING THE CHANCES OF THUNDERSTORMS BOTH THURSDAY AND FRIDAY. NO HAZARDOUS WEATHER IS EXPECTED NEXT WEEKEND. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS REQUESTED AT THIS TIME. FOR ADDITIONAL INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN JACKSONVILLE WEBSITE ON THE INTERNET AT WWW.SRH.NOAA.GOV/JAX. PP/HESS
In the hours before
Special weather statement, May 18, 6:30 PM EDT, 45 minutes before
FLZ024-182315- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE JACKSONVILLE FL 630 PM EDT SUN MAY 18 2003 ...STRONG THUNDERSTORMS WILL IMPACT WESTERN NASSAU COUNTY THROUGH 715 PM... AT 623 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS ABOUT 9 MILES WEST OF CALLAHAN... MOVING NORTHEAST AT 5 MPH. THIS CLUSTER OF STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND HILLIARD AND BOULOUGNE THROUGH 715 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. TAKE SHELTER IF LIGHTNING IS IN YOUR AREA. BROYLES
Local storm report, May 18, 6:32 PM EDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE, FL
632 PM EDT SUN MAY 18 2003
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0520 PM JASPER FL WIND DAMAGE
05/18/03 HAMILTON LARGE TREES DOWN AND
POWERLINES DOWN NEAR
HIGHWAY 41 AND 129.
REPORTED BY 911.
0530 PM TAYLOR FL WIND DAMAGE
05/18/03 BAKER LARGE TREES DOWN REPORTED
BY 911
0345 PM BAXLEY GA WIND DAMAGE
05/18/03 APPLING TREES AND POWERLINES DOWN
NEAR CHURCH REPORTED BY 911
0500 PM 10 N LAKE CITY FL WIND DAMAGE
05/18/03 COLUMBIA NUMEROUS TREES DOWN ALONG
HIGHWAY 441 REPORTED BY 911
0600 PM FOLKSTON GA WIND DAMAGE
05/18/03 CHARLTON NUMEROUS LARGE TREE LIMBS
DOWN REPORTED BY 911
PPSpecial weather statement, May 18, 6:39 PM EDT, 36 minutes before
GAZ152-182345- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE JACKSONVILLE FL 639 PM EDT SUN MAY 18 2003 ...STRONG THUNDERSTORMS WILL IMPACT BRANTLEY COUNTY THROUGH 745 PM... AT 639 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS CENTERED 3 MILES SOUTHWEST OF HICKOX...OR ABOUT 7 MILES SOUTHWEST OF NAHUNTA...MOVING NORTHEAST AT 10 MPH. THIS CLUSTER OF STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND HICKOX...NAHUNTA...RAYBON...HORTENSE AND ATKINSON THROUGH 745 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER...EXCESSIVE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. BROYLES
Special weather statement, May 18, 6:50 PM EDT, 25 minutes before
FLZ024-GAZ165-166-182330- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE JACKSONVILLE FL 650 PM EDT SUN MAY 18 2003 ...STRONG THUNDERSTORMS WILL IMPACT NASSAU AND CAMDEN COUNTIES THROUGH 730 PM EDT... AT 648 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS CENTERED OVER KINGS FERRY...OR ABOUT 8 MILES NORTHEAST OF HILLIARD...MOVING NORTHEAST AT 20 MPH. THIS CLUSTER OF STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND KINGS FERRY...HILLIARD...COLESBURG...WOODBINE AND DOVER BLUFF THROUGH 730 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER...FREQUENT CLOUD TO GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. PETERSON
Local storm report, May 18, 7:03 PM EDT, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE, FL
703 PM EDT SUN MAY 18 2003
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0520 PM JASPER FL WIND DAMAGE
05/18/03 HAMILTON LARGE TREES DOWN AND
POWERLINES DOWN NEAR
HIGHWAY 41 AND 129.
REPORTED BY 911.
0530 PM TAYLOR FL WIND DAMAGE
05/18/03 BAKER LARGE TREES DOWN REPORTED
BY 911
0345 PM BAXLEY GA WIND DAMAGE
05/18/03 APPLING TREES AND POWERLINES DOWN
NEAR CHURCH REPORTED BY 911
0500 PM 10 N LAKE CITY FL WIND DAMAGE
05/18/03 COLUMBIA NUMEROUS TREES DOWN ALONG
HIGHWAY 441 REPORTED BY 911
0600 PM FOLKSTON GA WIND DAMAGE
05/18/03 CHARLTON NUMEROUS LARGE TREE LIMBS
DOWN REPORTED BY 911
0644 PM HICKOX GA WIND DAMAGE
05/18/03 BRANTLEY POWERLINES DOWN REPORTED
BY GENERAL PUBLIC
PPSpecial weather statement, May 18, 7:09 PM EDT, 6 minutes before
GAZ153-154-165-166-190000- SIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE JACKSONVILLE FL 709 PM EDT SUN MAY 18 2003 ...STRONG THUNDERSTORMS WILL IMPACT CAMDEN AND GLYNN COUNTIES THROUGH 8 PM EDT... AT 709 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A CLUSTER OF STRONG THUNDERSTORMS CENTERED OVER COLESBURG...OR ABOUT OVER WOODBINE...MOVING NORTHEAST AT 20 MPH. THIS CLUSTER OF STRONG THUNDERSTORMS WILL ALSO AFFECT AREAS AROUND WOODBINE...COLESBURG... DOVER BLUFF...JEKYLL ISLAND...BRUNSWICK...DOCK JUNCTION...ST. SIMONS AND SEA ISLAND THROUGH 800 PM EDT. HAIL UP TO ONE HALF INCH IN DIAMETER...CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED ALONG WITH POSSIBLE MINOR DAMAGE. PETERSON
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 2:44 PM EDT | Severe Thunderstorm Warning | JAX | Marion | 31 min |
| May 18, 3:34 PM EDT | Severe Thunderstorm Warning | JAX | Marion, Putnam | 41 min |
| May 18, 3:43 PM EDT | Severe Thunderstorm Warning | JAX | Alachua | 47 min |
| May 18, 3:53 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton | 37 min |
| May 18, 4:20 PM EDT | Severe Thunderstorm Warning | JAX | Marion, Putnam | 40 min |
| May 18, 4:31 PM EDT | Severe Thunderstorm Warning | JAX | Hamilton | 59 min |
| May 18, 4:34 PM EDT | Severe Thunderstorm Warning | JAX | Columbia | 56 min |
| May 18, 4:55 PM EDT | Severe Thunderstorm Warning | JAX | Baker, Union | 50 min |
| May 18, 4:58 PM EDT | Severe Thunderstorm Warning | JAX | Suwannee | 62 min |
| May 18, 7:04 PM EDT | Special Marine Warning | JAX | 56 min | |
| May 18, 2:56 PM EDT | Severe Thunderstorm Warning | JAX | Ware | 34 min |
| May 18, 3:20 PM EDT | Severe Thunderstorm Warning | JAX | Appling, Bacon, Pierce | 40 min |
| May 18, 3:30 PM EDT | Severe Thunderstorm Warning | JAX | Wayne | 30 min |
| May 18, 4:26 PM EDT | Severe Thunderstorm Warning | JAX | Pierce, Wayne | 34 min |
| May 18, 4:50 PM EDT | Severe Thunderstorm Warning | JAX | Charlton, Ware | 40 min |
| May 18, 4:55 PM EDT | Severe Thunderstorm Warning | JAX | Jeff Davis | 35 min |
| May 18, 5:35 PM EDT | Severe Thunderstorm Warning | JAX | Charlton, Ware | 55 min |
| May 18, 6:45 PM EDT | Severe Thunderstorm Warning | JAX | Brantley | 60 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2003Every severe thunderstorm warning in 2003
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.