Alert archive / Florida / Tornado Warnings in 2009

Tornado Warning 44, NWS Mobile, AL

August 4, 2009Escambia County, Florida; Baldwin County, Alabama

NWS Mobile, AL issued this tornado warning at Aug 4, 2009, 4:32 PM CDT for Escambia County, Florida; Baldwin County, Alabama. It was in force for 43 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
Aug 4, 2009, 4:32 PM CDT (21:32 UTC)
Expired
Aug 4, 2009, 5:15 PM CDT
In force
43 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Baldwin County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 88 km from the middle of the area, began a volume at 21:34 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, 9.5 hours before the alert went out and 222 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-pSkew-T log-p diagram, Slidell Radar S, LA at 12:00Z on 2009-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 845 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 12:00Z on 2009-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
845 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
1081 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 042132
TORMOB
ALC003-FLC033-042215-
/O.NEW.KMOB.TO.W.0044.090804T2132Z-090804T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL
432 PM CDT TUE AUG 4 2009

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL ESCAMBIA COUNTY IN NORTHWEST FLORIDA...
  SOUTHEASTERN BALDWIN COUNTY IN SOUTHWEST ALABAMA...

* UNTIL 515 PM CDT

* AT 431 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETECTED ON RADAR A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO...NEAR SEMINOLE...OR ABOUT 18 MILES WEST OF PENSACOLA...
  MOVING SOUTHEAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  LILLIAN BY 505 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A 
STURDY BUILDING...AN INTERIOR HALLWAY OR SMALL ROOM...UNDER A 
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. USE BLANKETS OR 
PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IN 
ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE 
DAMAGING HAIL OR DAMAGING STRAIGHT LINE WINDS.

HEAVY RAINFALL MAY BE OBSCURING THIS TORNADO. TAKE COVER NOW IF YOU 
WAIT TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE 
PLACE.

LAT...LON 3031 8751 3034 8748 3033 8752 3055 8762
      3063 8744 3046 8731 3046 8730 3037 8725
      3034 8726 3033 8721 3031 8726 3033 8730
      3029 8750
TIME...MOT...LOC 2132Z 333DEG 11KT 3051 8748

$$
2 follow-up statements
000 
WWUS54 KMOB 042137
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
437 PM CDT TUE AUG 4 2009

ALC003-FLC033-042215-
/O.CON.KMOB.TO.W.0044.000000T0000Z-090804T2215Z/
BALDWIN AL-ESCAMBIA FL-
437 PM CDT TUE AUG 4 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR SOUTH
CENTRAL ESCAMBIA AND SOUTHEASTERN BALDWIN COUNTIES...

AT 436 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT ON RADAR A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.
THIS TORNADO WAS NEAR SEMINOLE...OR ABOUT 18 MILES WEST OF 
PENSACOLA...MOVING SOUTHEAST AT 15 MPH.

THE TORNADO WILL BE NEAR...
  LILLIAN AND 7 MILES SOUTHWEST OF BELLVIEW BY 505 PM CDT...
  7 MILES WEST OF MYRTLE GROVE...8 MILES WEST OF WARRINGTON AND 9
  MILES WEST OF PENSACOLA NAVAL BASE BY 515 PM CDT...

THE SAFEST PLACE TO BE DURING A TORNADO IS ON THE LOWEST FLOOR OF A 
STURDY BUILDING...PREFERABLY IN AN INTERIOR HALLWAY OR SMALL ROOM 
LIKE A CLOSET OR BATHROOM. IF POSSIBLE...GET UNDER A WORKBENCH OR 
STURDY FURNITURE. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND 
STAY AWAY FROM WINDOWS. IN ADDITION TO THE TORNADO...THIS STORM IS 
CAPABLE OF PRODUCING NICKEL SIZE HAIL OR DAMAGING STRAIGHT LINE 
WINDS.

HEAVY RAINFALL MAY BE OBSCURING THIS TORNADO. TAKE COVER NOW IF YOU
WAIT TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE
PLACE.

LAT...LON 3031 8751 3034 8748 3033 8752 3055 8762
      3063 8744 3046 8731 3046 8730 3037 8725
      3034 8726 3033 8721 3031 8726 3033 8730
      3029 8750
TIME...MOT...LOC 2135Z 333DEG 11KT 3050 8748

$$
000 
WWUS54 KMOB 042211
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
511 PM CDT TUE AUG 4 2009

ALC003-FLC033-042219-
/O.EXP.KMOB.TO.W.0044.000000T0000Z-090804T2215Z/
BALDWIN AL-ESCAMBIA FL-
511 PM CDT TUE AUG 4 2009

...THE TORNADO THREAT HAS DIMINISHED AND THEREFORE THE TORNADO 
WARNING FOR SOUTH CENTRAL ESCAMBIA AND SOUTHEASTERN BALDWIN COUNTIES 
WILL BE ALLOWED TO EXPIRE AT 515 PM CDT...

LAT...LON 3031 8751 3034 8748 3033 8752 3055 8762
      3063 8744 3046 8731 3046 8730 3037 8725
      3034 8726 3033 8721 3031 8726 3033 8730
      3029 8750
TIME...MOT...LOC 2209Z 333DEG 11KT 3041 8743

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 4:59 PM CDTAreal Flood AdvisoryMOBEscambia3 hr
Aug 4, 7:00 AM CDTMarine Weather StatementMOB2 hr
Aug 4, 3:03 PM CDTSpecial Marine WarningMOB42 min
Aug 4, 3:17 PM CDTSevere Thunderstorm WarningMOBMobile43 min
Aug 4, 3:47 PM CDTSpecial Marine WarningMOB58 min
Aug 4, 4:00 PM CDTSevere Thunderstorm WarningMOBMobile60 min
Aug 4, 4:13 PM CDTSevere Thunderstorm WarningMOBBaldwin62 min
Aug 4, 4:54 PM CDTAreal Flood AdvisoryMOBMobile3 hr

Nearby

Tornado Warnings in Florida, 2009Tornado Warnings in Alabama, 2009Every tornado warning in 2009Tornadoes in 2009

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.