Alert archive / Alabama / Special Weather Statements in 2015

Special Weather Statement, NWS Mobile, AL

October 31, 2015Covington County, Alabama; Okaloosa County, Florida

NWS Mobile, AL issued this special weather statement at Oct 31, 2015, 11:49 PM CDT for Covington County, Alabama; Okaloosa County, Florida. It was in force for 71 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 31, 2015, 11:49 PM CDT (04:49 UTC)
Expired: Nov 1, 2015, 1:00 AM CDT
In force: 71 min
Issued by: NWS Mobile, AL

Counties Covington County, AL, Okaloosa County, FL

The radar

The Eglin Afb radar (KEVX), 82 km from the middle of the area, began a volume at 04:51 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 00:00Z, 4.8 hours before the alert went out and 239 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1223 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this special weather statement went out at Oct 31, 11:44 PM CDT, 5 minutes earlier.

Area forecast discussion, Oct 31, 11:44 PM CDT, 5 minutes before

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Hazardous weather outlook, Oct 31, 9:45 PM CDT, 2 hours 4 minutes before

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In the hours before

Local storm report, Oct 31, 7:16 PM CDT, 4 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
716 PM CDT SAT OCT 31 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0506 PM     TSTM WND DMG     1 NNE STRENGTHFORD      31.63N 88.88W
10/31/2015                   WAYNE              MS   EMERGENCY MNGR

            ONE MOBILE HOME DAMAGED WITH POWER LINES AND 12 INCH
            DIAMETER TREES DOWN NEAR STRENGTHFORD.

&&

RROGERS

Special weather statement, Oct 31, 8:04 PM CDT, 3 hours 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOBILE AL
804 PM CDT SAT OCT 31 2015

ALZ262-264-010200-
BALDWIN CENTRAL AL-BALDWIN INLAND AL-
804 PM CDT SAT OCT 31 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...CENTRAL BALDWIN AND INLAND BALDWIN IN SOUTHWEST ALABAMA
UNTIL 900 PM CDT...

AT 803 PM CDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM I65 AND AL 225 TO NEAR DAPHNE...AND MOVING
SOUTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
BAY MINETTE...         SPANISH FORT...        I65 AND AL 287...
I65 AND AL 225...      I65 AND AL 59...       STAPLETON...

THE PRIMARY THREATS FROM THESE STORMS ARE WIND GUSTS UP TO 50 MPH.
WINDS THIS STRONG COULD BLOW OFF TREE LIMBS AND ALSO BLOW AROUND
SMALL UNSECURED OBJECTS. SEEK SHELTER UNTIL THESE STORMS HAVE
PASSED. HEAVY RAINFALL WILL GREATLY RESTRICT VISIBILITY AND CREATE
PONDING OF WATER ON ROADWAYS.

LAT...LON 3064 8792 3075 8792 3074 8796 3071 8794
      3072 8800 3073 8800 3083 8794 3086 8797
      3094 8793 3092 8791 3076 8792 3088 8789
      3093 8791 3098 8787 3101 8790 3100 8760
      3085 8763 3062 8742
TIME...MOT...LOC 0103Z 309DEG 20KT 3096 8785 3061 8798

Local storm report, Oct 31, 8:42 PM CDT, 3 hours 7 minutes before

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Special weather statement, Oct 31, 9:12 PM CDT, 2 hours 37 minutes before

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Special weather statement, Oct 31, 11:05 PM CDT, 44 minutes before

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Special weather statement, Oct 31, 11:49 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 31, 7:00 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	45 min
Oct 31, 7:01 PM CDT	Special Weather Statement	MOB	Clarke, Wilcox	44 min
Oct 31, 7:26 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	49 min
Oct 31, 7:33 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Wilcox	15 min
Oct 31, 7:38 PM CDT	Special Marine Warning	MOB		67 min
Oct 31, 8:04 PM CDT	Special Weather Statement	MOB	Baldwin	56 min
Oct 31, 8:24 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	36 min
Oct 31, 9:12 PM CDT	Special Weather Statement	MOB	Conecuh	48 min
Nov 1, 10:37 AM CST	Small Craft Advisory	MOB		4 hr
Nov 1, 11:58 AM CST	Areal Flood Advisory	MOB	Mobile	4 hr
Oct 31, 11:05 PM CDT	Special Weather Statement	MOB	Santa Rosa	55 min
Nov 1, 4:15 PM CST	Areal Flood Advisory	MOB	Okaloosa	2 hr

Nearby

Special Weather Statements in Alabama, 2015 Special Weather Statements in Florida, 2015 Every special weather statement in 2015

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.