Alert archive / Alabama / Special Weather Statements in 2011

Special Weather Statement, NWS Birmingham, AL

March 8, 2011Greene County, Alabama

NWS Birmingham, AL issued this special weather statement at Mar 8, 2011, 3:03 PM CST for Greene County, Alabama. It was in force for 27 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 8, 2011, 3:03 PM CST (21:03 UTC)
Expired: Mar 8, 2011, 3:30 PM CST
In force: 27 min
Issued by: NWS Birmingham, AL

County Greene County, AL

The radar

The Columbus AFB radar (KGWX), 100 km from the middle of the area, began a volume at 21:05 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

Jackson, MS (KJAN), launched 12:00Z, 9.1 hours before the alert went out and 208 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: 629 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 281 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 Birmingham, AL wrote its last area forecast discussion before this special weather statement went out at Mar 8, 2:57 PM CST, 6 minutes earlier.

Area forecast discussion, Mar 8, 2:57 PM CST, 6 minutes before

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Hazardous weather outlook, Mar 8, 2:52 PM CST, 11 minutes before

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In the hours before

Local storm report, Mar 8, 9:58 AM CST, 5 hours 5 minutes before

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Special weather statement, Mar 8, 10:00 AM CST, 5 hours 3 minutes before

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Special weather statement, Mar 8, 12:45 PM CST, 2 hours 18 minutes before

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Special weather statement, Mar 8, 1:09 PM CST, 1 hour 54 minutes before

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Special weather statement, Mar 8, 2:35 PM CST, 28 minutes before

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Special weather statement, Mar 8, 3:03 PM CST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
303 PM CST TUE MAR 8 2011

ALZ030-031-082130-
GREENE AL-SUMTER AL-
303 PM CST TUE MAR 8 2011

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN GREENE AND NORTHERN
SUMTER COUNTIES UNTIL 330 PM CST...

AT 300 PM CST...THE NATIONAL WEATHER SERVICE WAS TRACKING A STRONG
THUNDERSTORM NEAR NEW WEST GREENE...OR 16 MILES SOUTH OF
ALICEVILLE...MOVING NORTHEAST AT 40 MPH.

HAIL UP TO ONE-HALF INCH IN DIAMETER AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.

LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
  NEW WEST GREENE...
  WEST GREENE...
  UNION...
  MANTUA...
  JENA...

&&

LAT...LON 3299 8817 3302 8817 3305 8814 3305 8809
      3306 8807 3305 8804 3307 8803 3310 8795
      3313 8793 3316 8784 3303 8783 3303 8774
      3299 8772 3279 8816 3298 8831
TIME...MOT...LOC 2103Z 238DEG 33KT 3291 8817

GOGGINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 8, 3:55 AM CST	Flash Flood Watch	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	33 hr
Mar 8, 8:13 AM CST	River Flood Warning	BMX	Greene, Hale, Marengo, Pickens, Sumter	5 days
Mar 8, 8:20 AM CST	River Flood Warning	BMX	Sumter	4 days
Mar 8, 10:00 AM CST	Special Weather Statement	BMX	Greene, Sumter	30 min
Mar 8, 12:45 PM CST	Special Weather Statement	BMX	Lamar	45 min
Mar 8, 1:09 PM CST	Special Weather Statement	BMX	Pickens	51 min
Mar 8, 1:49 PM CST	Flash Flood Warning	BMX	Lamar	5 hr
Mar 8, 2:02 PM CST	Areal Flood Advisory	BMX	Fayette, Marion, Pickens	3 hr
Mar 8, 2:35 PM CST	Special Weather Statement	BMX	Greene	25 min
Mar 8, 3:08 PM CST	Wind Advisory	BMX	Autauga, Barbour, Bibb, Blount, Bullock, Calhoun and 33 more	22 hr

Nearby

Special Weather Statements in Alabama, 2011 Every special weather statement in 2011

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.