Alert archive / Alabama / Special Weather Statements in 2018

Special Weather Statement, NWS Mobile, AL

May 30, 2018Clarke County, Washington County, Wilcox County, Alabama; Greene County, Mississippi

NWS Mobile, AL issued this special weather statement at May 30, 2018, 11:58 AM CDT for Clarke County, Washington County, Wilcox County, Alabama; Greene County, Mississippi. It was in force for 92 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
May 30, 2018, 11:58 AM CDT (16:58 UTC)
Expired
May 30, 2018, 1:30 PM CDT
In force
92 min
Issued by
NWS Mobile, AL

Counties Clarke County, AL, Washington County, AL, Wilcox County, AL, Greene County, MS

The radar

The Mobile radar (KMOB), 155 km from the middle of the area, began a volume at 17:01 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

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 5.0 hours before the alert went out and 209 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, Eglin AFB/Valpar, FL at 12:00Z on 2018-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1478 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Eglin AFB/Valpar, FL at 12:00Z on 2018-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
1478 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
583 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 May 30, 9:34 AM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, May 30, 9:34 AM CDT, 2 hours 24 minutes before
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Hazardous weather outlook, May 30, 4:53 AM CDT, 7 hours 5 minutes before
Hazardous Weather Outlook
National Weather Service Mobile AL
453 AM CDT Wed May 30 2018

ALZ265-266-FLZ202-204-206-311000-
Mobile Coastal-Baldwin Coastal-Escambia Coastal-Santa Rosa Coastal-
Okaloosa Coastal-
453 AM CDT Wed May 30 2018

...HIGH RIP CURRENT RISK IN EFFECT THROUGH THURSDAY EVENING...

This Hazardous Weather Outlook is for southwest Alabama and
northwest Florida.

.DAY ONE...Today and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

Storms could be locally strong at times, containing brief strong
wind gusts, locally heavy downpours and frequent lightning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov/mob (see
Fast Access Product Section) for more information about the
following hazards.

   High Rip Current Risk.

Storms could be locally strong at times, containing brief strong
wind gusts, locally heavy downpours and frequent lightning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

ALZ051>060-261>264-FLZ201-203-205-GMZ633-MSZ067-075-076-078-079-
311000-
Choctaw-Washington-Clarke-Wilcox-Monroe-Conecuh-Butler-Crenshaw-
Escambia-Covington-Mobile Inland-Baldwin Inland-Mobile Central-
Baldwin Central-Escambia Inland-Santa Rosa Inland-Okaloosa Inland-
Perdido Bay-Wayne-Perry-Greene-Stone-George-
453 AM CDT Wed May 30 2018

This Hazardous Weather Outlook is for south central Alabama,
southwest Alabama, northwest Florida, southeast Mississippi and the
coastal waters of Alabama and northwest Florida.

.DAY ONE...Today and Tonight.

Storms could be locally strong at times, containing brief strong
wind gusts, locally heavy downpours and frequent lightning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Storms could be locally strong at times, containing brief strong
wind gusts, locally heavy downpours and frequent lightning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ630>632-634>636-650-655-670-675-311000-
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola FL
out 20 NM-Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
453 AM CDT Wed May 30 2018

This Hazardous Weather Outlook is for the coastal waters of Alabama
and northwest Florida.

.DAY ONE...Today and Tonight.

Frequent lightning activity, brief strong wind gusts and locally
heavy, visibility reducing rains likely in any stronger isolated to
scattered marine storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Frequent lightning activity, brief strong wind gusts and locally
heavy, visibility reducing rains likely in any stronger isolated to
scattered marine storms.

An increase in westerly winds brings a build in seas by the weekend.

In the hours before

Special weather statement, May 30, 11:32 AM CDT, 26 minutes before
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Special weather statement, May 30, 11:49 AM CDT, 9 minutes before
Special Weather Statement
National Weather Service Mobile AL
1149 AM CDT WED MAY 30 2018

ALZ264-266-FLZ201>205-301730-
Baldwin Coastal AL-Baldwin Central AL-Escambia Inland FL-
Okaloosa Inland FL-Santa Rosa Coastal FL-Escambia Coastal FL-
Santa Rosa Inland FL-
1149 AM CDT WED MAY 30 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...EAST CENTRAL BALDWIN...WESTERN OKALOOSA...SANTA ROSA AND
ESCAMBIA COUNTIES UNTIL 1230 PM CDT...

At 1148 AM CDT, the strong thunderstorms were located along a line
extending from near Pollard to Ferry Pass, and moving east at 15 mph.

Winds in excess of 30 mph will be possible with these storms.

Locations impacted include...
Pensacola, Ferry Pass, Brent, Ensley, Gonzalez, Pace, Milton,
Century, Bagdad, Molino, Jay, Bratt, Point Baker, Pea Ridge, Roeville
and Floridatown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3045 8750 3099 8749 3099 8674 3048 8667
      3048 8669 3047 8671
TIME...MOT...LOC 1648Z 255DEG 12KT 3106 8716 3052 8719
Special weather statement, May 30, 11:58 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Mobile AL
1158 AM CDT WED MAY 30 2018

ALZ051>055-261-262-MSZ067-076-079-301830-
Clarke AL-Wilcox AL-Baldwin Inland AL-Monroe AL-Choctaw AL-
Washington AL-Mobile Inland AL-Greene MS-Wayne MS-George MS-
1158 AM CDT WED MAY 30 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...WESTERN MONROE...EASTERN CHOCTAW...NORTHERN MOBILE...
NORTHWESTERN BALDWIN...WASHINGTON...CLARKE...WILCOX...NORTHERN
GEORGE...SOUTHEASTERN WAYNE AND EASTERN GREENE COUNTIES UNTIL 130 PM
CDT...

At 1157 AM CDT, the strong thunderstorms were located along a line
extending from 6 miles south of Central Mills to 7 miles east of
Lucedale, and moving east at 20 mph.

Winds in excess of 30 mph will be possible with these storms.

Locations impacted include...
Jackson, Thomasville, Citronelle, Camden, Grove Hill, Chatom,
Leakesville, Wagarville, Saint Stephens, Leroy, Gulfcrest, Deer Park,
Whatley, Tibbie, Pine Hill, Mount Vernon, Calvert, Millry, State Line
and Fruitdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3214 8804 3209 8804 3206 8810 3201 8812
      3201 8811 3200 8763 3213 8762 3213 8752
      3227 8751 3227 8744 3220 8736 3220 8733
      3205 8718 3205 8706 3102 8779 3095 8882
      3231 8794 3231 8793
TIME...MOT...LOC 1657Z 254DEG 23KT 3219 8743 3090 8848

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 10:26 PM CDTSpecial Weather StatementMOBWilcox49 min
May 30, 3:35 AM CDTSpecial Marine WarningMOB85 min
May 30, 3:46 AM CDTSpecial Weather StatementMOBMobile59 min
May 30, 5:16 AM CDTSpecial Marine WarningMOB27 min
May 30, 5:50 AM CDTSpecial Weather StatementMOBBaldwin40 min
May 30, 7:59 AM CDTAreal Flood AdvisoryMOBMobile2 hr
May 30, 10:31 AM CDTAreal Flood AdvisoryMOBBaldwin119 min
May 30, 11:32 AM CDTSpecial Weather StatementMOBButler, Conecuh, Covington, Crenshaw43 min
May 30, 12:25 PM CDTSpecial Weather StatementMOBButler, Covington, Crenshaw95 min
May 30, 1:55 PM CDTSpecial Weather StatementMOBClarke, Monroe95 min
May 30, 2:49 PM CDTSpecial Weather StatementMOBCovington56 min
May 30, 3:02 PM CDTSpecial Weather StatementMOBMobile43 min
May 30, 3:04 PM CDTAreal Flood AdvisoryMOBBaldwin, Mobile116 min
May 30, 3:07 PM CDTSpecial Marine WarningMOB42 min
May 30, 3:12 PM CDTSpecial Weather StatementMOBConecuh48 min
May 30, 3:22 PM CDTAreal Flood AdvisoryMOBCovington113 min
May 30, 6:26 PM CDTSpecial Weather StatementMOBChoctaw49 min
May 30, 11:49 AM CDTSpecial Weather StatementMOBEscambia, Santa Rosa41 min

Nearby

Special Weather Statements in Alabama, 2018Special Weather Statements in Mississippi, 2018Every special weather statement in 2018

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.