Alert archive / Alabama / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 151, NWS Mobile, AL

December 28, 2007Conecuh County, Escambia County, Monroe County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Dec 28, 2007, 11:55 AM CST for Conecuh County, Escambia County, Monroe County, Alabama. It was in force for 50 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Dec 28, 2007, 11:55 AM CST (17:55 UTC)
Expired
Dec 28, 2007, 12:45 PM CST
In force
50 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

Counties Conecuh County, AL, Escambia County, AL, Monroe County, AL

The radar

The Mobile radar (KMOB), 131 km from the middle of the area, began a volume at 17:59 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.

What was reported inside it

TimeReportWhereRemark
Dec 28, 12:10 PM CSTHAIL 0.75Evergreen, AL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Dec 28, 10:44 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.9 hours before the alert went out and 201 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, Birmingham, AL at 12:00Z on 2007-12-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Birmingham, AL at 12:00Z on 2007-12-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 361 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
463 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
361 m²/s²
0-3 km storm-relative helicity
429 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 281755
SVRMOB
ALC035-053-099-281845-
/O.NEW.KMOB.SV.W.0151.071228T1755Z-071228T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1155 AM CST FRI DEC 28 2007

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CONECUH COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITY OF EVERGREEN...
  NORTH CENTRAL ESCAMBIA COUNTY IN SOUTH CENTRAL ALABAMA...
  SOUTH CENTRAL MONROE COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 1245 PM CST

* AT 1154 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR VOCATION...OR
  ABOUT 18 MILES SOUTH OF MONROEVILLE...AND MOVING EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  RANGE AND I65 AND AL 41 BY 1215 PM CST...
  LENOX AND REPTON BY 1220 PM CST...
  I65 AND CR 6 BY 1225 PM CST...
  BELLEVILLE BY 1235 PM CST...
  I65 AND US 84...EVERGREEN AND I65 AND AL 83 BY 1245 PM CST...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3158 8695 3135 8685 3117 8747 3134 8755
TIME...MOT...LOC 1755Z 248DEG 28KT 3129 8741

$$
2 follow-up statements
000 
WWUS54 KMOB 281818
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1216 PM CST FRI DEC 28 2007

ALC035-053-099-281845-
/O.CON.KMOB.SV.W.0151.000000T0000Z-071228T1845Z/
ESCAMBIA AL-CONECUH AL-MONROE AL-
1216 PM CST FRI DEC 28 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CST
FOR SOUTH CENTRAL MONROE...WESTERN CONECUH AND NORTH CENTRAL ESCAMBIA
COUNTIES...

AT 1213 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR RANGE...
OR ABOUT 13 MILES SOUTH OF MONROEVILLE...MOVING EAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  I65 AND CR 6 BY 1225 PM CST...
  6 MILES SOUTH OF NICHBURG BY 1230 PM CST...
  BELLEVILLE AND 6 MILES SOUTH OF LOREE BY 1235 PM CST...
  I65 AND US 84 BY 1240 PM CST...
  EVERGREEN...I65 AND AL 83...OWASSA AND 6 MILES SOUTHWEST OF
  BROWNVILLE BY 1245 PM CST...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

HEAVY RAINFALL OF UP TO 2 INCHES PER HOUR WILL OCCUR WITH THESE 
STORMS AND MAY LEAD TO NUSIANCE FLOODING OF POOR DRAINAGE AREAS AND 
URBAN AREAS.  DO NOT DRIVE THROUGH WATER COVERED ROADWAYS.

HAIL UP TO PENNY SIZE HAS BEEN REPORTED IN EVERGREEN WITH THIS GROUP 
OF STORMS. IF YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE 
ACTION TO PROTECT LIFE AND PROPERTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3158 8695 3135 8685 3117 8747 3134 8755
TIME...MOT...LOC 1816Z 248DEG 28KT 3135 8723

$$
000 
WWUS54 KMOB 281846 RRA
SVSMOB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
1246 PM CST FRI DEC 28 2007

ALC035-053-099-281856-
/O.EXP.KMOB.SV.W.0151.000000T0000Z-071228T1845Z/
ESCAMBIA AL-CONECUH AL-MONROE AL-
1246 PM CST FRI DEC 28 2007

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MONROE...WESTERN
CONECUH AND NORTH CENTRAL ESCAMBIA COUNTIES EXPIRES AT 1245 PM CST...

AT 1245 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT THE STORM THAT PROMPTED THE WARNING HAS WEAKENED TO BELOW 
SEVERE LIMITS...THUS THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CST FRIDAY EVENING FOR
SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST MISSISSIPPI.

LAT...LON 3158 8695 3135 8685 3117 8747 3134 8755
TIME...MOT...LOC 1818Z 248DEG 33KT 3137 8717

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 28, 10:21 AM CSTSevere Thunderstorm WarningMOBMobile24 min
Dec 28, 10:27 AM CSTTornado WarningMOBBaldwin, Escambia33 min
Dec 28, 10:53 AM CSTSevere Thunderstorm WarningMOBBaldwin37 min
Dec 28, 11:10 AM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia50 min
Dec 28, 11:16 AM CSTSevere Thunderstorm WarningMOBConecuh, Escambia, Monroe44 min
Dec 28, 12:04 PM CSTSevere Thunderstorm WarningMOBBaldwin, Mobile41 min
Dec 28, 12:25 PM CSTSevere Thunderstorm WarningMOBCovington, Escambia50 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2007Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.