Alert archive / Alabama / Special Weather Statements in 2021

Special Weather Statement, NWS Mobile, AL

April 9, 2021Clarke County, Alabama

NWS Mobile, AL issued this special weather statement at Apr 9, 2021, 6:47 AM CDT for Clarke County, Alabama. It was in force for 43 min. 3 reports 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: Apr 9, 2021, 6:47 AM CDT (11:47 UTC)
Expired: Apr 9, 2021, 7:30 AM CDT
In force: 43 min
Issued by: NWS Mobile, AL

County Clarke County, AL

The radar

The Mobile radar (KMOB), 143 km from the middle of the area, began a volume at 11:46 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

Time	Report	Where	Remark
Apr 9, 7:15 AM CDT	HAIL 2.5	4 Sse Coffeeville, AL	HAIL UP TO TENNIS BALL SIZE REPORTED ON HIGHWAY 69 BETWEEN COFFEEVILLE AND SALITPA. THE HAIL RESULTED IN VEHICLE DAMAGE.
Apr 9, 7:20 AM CDT	HAIL 1.75	4 W Bashi, AL	GOLF BALL SIZE HAIL REPORTED NEAR BASHI RD ABOUT 3 TO 4 MILES EAST OF HIGHWAY 69.
Apr 9, 7:22 AM CDT	HAIL 2.5	Bashi, AL	HEN EGG TO TENNIS BALL SIZE HAIL REPORTED IN BASHI. PICTURES RELAYED VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR.

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

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 11.8 hours before the alert went out and 175 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: 76 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 2092 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

024 
WWUS84 KMOB 091147
SPSMOB

Special Weather Statement
National Weather Service Mobile AL
647 AM CDT Fri Apr 9 2021
 
ALZ051>054-091230-
Clarke AL-Wilcox AL-Choctaw AL-Washington AL-
647 AM CDT Fri Apr 9 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHERN CHOCTAW...NORTH CENTRAL WASHINGTON...CLARKE AND SOUTHWESTERN
WILCOX COUNTIES UNTIL 730 AM CDT...

At 647 AM CDT, the strong thunderstorm was located near Coffeeville,
or 19 miles north of Chatom, moving east at 35 mph.

Nickel size hail and wind gusts of 40 to 50 mph will be possible with
this storm.

Locations impacted include...
Thomasville, Grove Hill, Whatley, Millry, Silas, Coffeeville, Fulton
and Gilbertown.

LAT...LON 3211 8805 3209 8804 3206 8807 3207 8810
      3205 8812 3200 8810 3199 8810 3201 8809
      3199 8807 3199 8767 3200 8766 3201 8762
      3179 8752 3170 8752 3170 8757 3158 8757
      3158 8834 3183 8838 3215 8802
TIME...MOT...LOC 1147Z 255DEG 31KT 3174 8815 

$$

Black

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 10:33 PM CDT	Small Craft Advisory	MOB		41 hr
Apr 9, 2:57 AM CDT	Severe Thunderstorm Warning	MOB	Mobile	34 min
Apr 9, 3:30 AM CDT	Special Weather Statement	MOB	Mobile	45 min
Apr 9, 3:57 AM CDT	Special Marine Warning	MOB		93 min
Apr 9, 4:17 AM CDT	Special Weather Statement	MOB	Mobile	58 min
Apr 9, 4:25 AM CDT	Special Marine Warning	MOB		2 hr
Apr 9, 6:28 AM CDT	Special Marine Warning	MOB		2 hr
Apr 9, 6:42 AM CDT	Special Marine Warning	MOB		2 hr
Apr 9, 6:54 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke	38 min
Apr 9, 7:02 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw, Clarke, Washington	43 min
Apr 9, 7:45 AM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe	21 min
Apr 9, 8:06 AM CDT	Special Weather Statement	MOB	Clarke	39 min
Apr 9, 8:09 AM CDT	Special Marine Warning	MOB		96 min
Apr 9, 8:28 AM CDT	Special Marine Warning	MOB		105 min
Apr 9, 9:49 AM CDT	Special Marine Warning	MOB		54 min
Apr 9, 12:18 PM CDT	High Surf Advisory	MOB	Baldwin, Mobile	43 hr
Apr 9, 12:23 PM CDT	Special Weather Statement	MOB	Wilcox	52 min
Apr 9, 2:16 PM CDT	Special Weather Statement	MOB	Wilcox	44 min
Apr 9, 2:18 PM CDT	Special Weather Statement	MOB	Choctaw	42 min
Apr 9, 2:35 PM CDT	Special Weather Statement	MOB	Choctaw	40 min
Apr 9, 2:56 PM CDT	Special Weather Statement	MOB	Crenshaw	49 min
Apr 9, 8:11 AM CDT	Special Weather Statement	MOB	Okaloosa	49 min
Apr 9, 8:16 AM CDT	Areal Flood Advisory	MOB	Okaloosa, Santa Rosa	119 min
Apr 9, 10:15 AM CDT	River Flood Warning	MOB	George, Greene, Wayne	21 days
Apr 9, 10:16 AM CDT	River Flood Warning	MOB	George, Greene, Jackson	21 days
Apr 9, 10:18 AM CDT	River Flood Warning	MOB	George, Greene, Perry	21 days

Nearby

Special Weather Statements in Alabama, 2021 Every special weather statement in 2021

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.