Alert archive / Alabama / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 104, NWS Mobile, AL

March 30, 2017Baldwin County, Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 30, 2017, 1:41 PM CDT for Baldwin County, Mobile County, Alabama. It was in force for 18 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: Mar 30, 2017, 1:41 PM CDT (18:41 UTC)
Expired: Mar 30, 2017, 1:59 PM CDT
In force: 18 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Baldwin County, AL, Mobile County, AL

The radar

The Mobile radar (KMOB), 58 km from the middle of the area, began a volume at 18:41 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, 6.7 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-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: 1425 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 619 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

As transmitted.

049 
WUUS54 KMOB 301841
SVRMOB
ALC003-097-301930-
/O.NEW.KMOB.SV.W.0104.170330T1841Z-170330T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
141 PM CDT THU MAR 30 2017

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  Northeastern Mobile County in southwestern Alabama...
  Northwestern Baldwin County in southwestern Alabama...

* Until 230 PM CDT

* At 141 PM CDT, severe thunderstorms were located along a line
  extending from near Movico to Creola to Downtown Mobile, moving
  east at 40 mph.

  HAZARD...60 mph wind gusts and nickel size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Expect damage to roofs, siding, and trees. 

* Locations impacted include...
  Downtown Mobile, Bay Minette, Satsuma, Creola, Stockton, Stapleton,
  Axis, Mount Vernon, I65 And AL 225 and Movico.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3089 8806 3107 8809 3115 8794 3114 8794
      3116 8792 3115 8790 3117 8789 3114 8787
      3116 8788 3118 8785 3126 8767 3124 8764
      3119 8762 3100 8762 3100 8760 3096 8759
      3087 8764 3080 8757 3077 8758 3069 8806
TIME...MOT...LOC 1841Z 251DEG 33KT 3102 8806 3091 8802 3071 8803 

HAIL...0.88IN
WIND...60MPH
 
$$

RR

1 follow-up statement

564 
WWUS54 KMOB 301859
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
159 PM CDT THU MAR 30 2017

ALC003-097-301909-
/O.CAN.KMOB.SV.W.0104.000000T0000Z-170330T1930Z/
Mobile AL-Baldwin AL-
159 PM CDT THU MAR 30 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MOBILE AND
NORTHWESTERN BALDWIN COUNTIES IS CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

LAT...LON 3089 8806 3107 8809 3115 8794 3114 8794
      3116 8792 3115 8790 3117 8789 3114 8787
      3116 8788 3118 8785 3126 8767 3124 8764
      3119 8762 3100 8762 3100 8760 3096 8759
      3087 8764 3080 8757 3077 8758 3069 8806
TIME...MOT...LOC 1857Z 251DEG 33KT 3107 8789 3096 8785 3076 8786 

$$

RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 5:07 AM CDT	Rip Current Statement	MOB	Baldwin, Mobile	24 hr
Mar 30, 11:19 AM CDT	Severe Thunderstorm Warning	MOB	Mobile, Washington	41 min
Mar 30, 11:52 AM CDT	Severe Thunderstorm Warning	MOB	Clarke, Washington	38 min
Mar 30, 11:53 AM CDT	Special Weather Statement	MOB	Monroe	52 min
Mar 30, 11:55 AM CDT	Special Weather Statement	MOB	Conecuh, Escambia	50 min
Mar 30, 12:08 PM CDT	Special Marine Warning	MOB		97 min
Mar 30, 12:28 PM CDT	Severe Thunderstorm Warning	MOB	Monroe, Wilcox	47 min
Mar 30, 12:29 PM CDT	Severe Thunderstorm Warning	MOB	Conecuh, Escambia	46 min
Mar 30, 12:38 PM CDT	Special Weather Statement	MOB	Mobile	52 min
Mar 30, 12:45 PM CDT	Special Weather Statement	MOB	Mobile	45 min
Mar 30, 12:58 PM CDT	Severe Thunderstorm Warning	MOB	Monroe, Wilcox	47 min
Mar 30, 1:08 PM CDT	Special Weather Statement	MOB	Monroe	37 min
Mar 30, 1:24 PM CDT	Severe Thunderstorm Warning	MOB	Butler	51 min
Mar 30, 1:39 PM CDT	Special Marine Warning	MOB		66 min
Mar 30, 2:07 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	23 min
Mar 30, 2:15 PM CDT	Special Weather Statement	MOB	Baldwin	45 min
Mar 30, 2:18 PM CDT	Special Marine Warning	MOB		87 min
Mar 30, 2:28 PM CDT	Special Weather Statement	MOB	Crenshaw	47 min
Mar 30, 2:33 PM CDT	Special Weather Statement	MOB	Monroe, Wilcox	57 min
Mar 30, 2:39 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Mar 30, 2:44 PM CDT	Areal Flood Advisory	MOB	Clarke, Monroe, Wilcox	3 hr
Mar 30, 3:40 PM CDT	Special Marine Warning	MOB		95 min
Mar 30, 3:41 PM CDT	Special Marine Warning	MOB		64 min
Mar 30, 3:58 PM CDT	Special Weather Statement	MOB	Escambia	47 min
Mar 30, 5:00 PM CDT	Special Marine Warning	MOB		90 min
Mar 30, 5:31 PM CDT	Special Weather Statement	MOB	Butler, Covington, Crenshaw	59 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2017 Every severe thunderstorm warning in 2017

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.