Alert archive / Florida / Tornado Warnings in 2007

Tornado Warning 47, NWS Mobile, AL

October 18, 2007Escambia County, Santa Rosa County, Florida

NWS Mobile, AL issued this tornado warning at Oct 18, 2007, 11:30 AM CDT for Escambia County, Santa Rosa 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 outline as issued.

The facts

Issued: Oct 18, 2007, 11:30 AM CDT (16:30 UTC)
Expired: Oct 18, 2007, 12:15 PM CDT
In force: 45 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Escambia County, FL, Santa Rosa County, FL

The radar

The Eglin Afb radar (KEVX), 112 km from the middle of the area, began a volume at 16:33 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.5 hours before the alert went out and 252 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2019 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 606 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WFUS54 KMOB 181630
TORMOB
FLC033-113-181715-
/O.NEW.KMOB.TO.W.0047.071018T1630Z-071018T1715Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1130 AM CDT THU OCT 18 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME SOUTHEASTERN ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  SOUTHEASTERN SANTA ROSA COUNTY IN NORTHWEST FLORIDA...

* UNTIL 1215 PM CDT

* AT 1126 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR GULF
  BREEZE...OR ABOUT 8 MILES SOUTH OF PENSACOLA...MOVING NORTHEAST AT
  25 MPH.

* THE TORNADO WILL BE NEAR...
  ORIOLE BEACH BY 1140 AM CDT...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST
DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3034 8721 3039 8716 3042 8711 3045 8711
      3067 8692 3049 8678 3033 8703 3034 8708
      3031 8719
TIME...MOT...LOC 1630Z 221DEG 22KT 3033 8714

$$

JP

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 18, 1:30 AM CDT	Special Marine Warning	MOB		90 min
Oct 18, 3:23 AM CDT	Special Marine Warning	MOB		97 min
Oct 18, 6:23 AM CDT	Special Marine Warning	MOB		67 min
Oct 18, 7:35 AM CDT	Special Marine Warning	MOB		25 min
Oct 18, 8:24 AM CDT	Severe Thunderstorm Warning	MOB	Escambia, Santa Rosa	51 min
Oct 18, 8:58 AM CDT	Special Marine Warning	MOB		62 min
Oct 18, 9:11 AM CDT	Tornado Warning	MOB	Escambia, Santa Rosa	34 min
Oct 18, 9:18 AM CDT	Tornado Warning	MOB	Santa Rosa	42 min
Oct 18, 9:51 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	39 min
Oct 18, 10:10 AM CDT	Tornado Warning	MOB	Escambia, Santa Rosa	35 min
Oct 18, 10:39 AM CDT	Severe Thunderstorm Warning	MOB	Okaloosa	36 min
Oct 18, 10:45 AM CDT	Special Marine Warning	MOB		30 min
Oct 18, 11:01 AM CDT	Special Marine Warning	MOB		89 min
Oct 18, 11:20 AM CDT	Tornado Warning	MOB	Okaloosa	40 min
Oct 18, 12:11 PM CDT	Special Marine Warning	MOB		94 min
Oct 18, 1:47 PM CDT	Special Marine Warning	MOB		88 min
Oct 18, 3:19 PM CDT	Special Marine Warning	MOB		86 min
Oct 18, 3:52 PM CDT	Special Marine Warning	MOB		83 min
Oct 18, 5:44 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	46 min

Nearby

Tornado Warnings in Florida, 2007 Every tornado warning in 2007 Tornadoes in 2007

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.