Alert archive / Alabama / Special Weather Statements in 2020
Special Weather Statement, NWS Birmingham, AL
NWS Birmingham, AL issued this special weather statement at Aug 11, 2020, 6:55 PM CDT for Tuscaloosa County, Alabama. It was in force for 35 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
- Aug 11, 2020, 6:55 PM CDT (23:55 UTC)
- Expired
- Aug 11, 2020, 7:30 PM CDT
- In force
- 35 min
- Issued by
- NWS Birmingham, AL
County Tuscaloosa County, AL
The radar
The Birmingham radar (KBMX), 93 km from the middle of the area, began a volume at 23:56 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
Birmingham, AL (KBMX), launched 12:00Z, 11.9 hours before the alert went out and 92 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.
- Mixed-layer CAPE
- 953 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 1192 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>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 Aug 11, 2:31 PM CDT, 4 hours 24 minutes earlier.
Area forecast discussion, Aug 11, 2:31 PM CDT, 4 hours 24 minutes before
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</html>Hazardous weather outlook, Aug 11, 2:20 PM CDT, 4 hours 35 minutes before
Hazardous Weather Outlook National Weather Service Birmingham AL 220 PM CDT Tue Aug 11 2020 ALZ011>015-017>050-122230- Marion-Lamar-Fayette-Winston-Walker-Blount-Etowah-Calhoun-Cherokee- Cleburne-Pickens-Tuscaloosa-Jefferson-Shelby-St. Clair-Talladega- Clay-Randolph-Sumter-Greene-Hale-Perry-Bibb-Chilton-Coosa-Tallapoosa- Chambers-Marengo-Dallas-Autauga-Lowndes-Elmore-Montgomery-Macon- Bullock-Lee-Russell-Pike-Barbour- 220 PM CDT Tue Aug 11 2020 This Hazardous Weather Outlook is for the counties served by the National Weather Service office in Birmingham. .DAY ONE...Outlook through Tonight. Isolated strong to severe thunderstorms are possible this afternoon. Brief damaging wind gusts of 60 mph or more and hail up to quarter size could occur. Heat indices may approach 105 degrees for areas along and west of Interstate 65 this afternoon. Take extra precautions while outside. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Heat indices may approach 105 degrees Wednesday afternoon. Take extra precautions while outside. .SPOTTER INFORMATION STATEMENT... Activation of storm spotters and emergency management may be needed this afternoon and evening. Please follow all local, state, and CDC guidelines in regards to travel.
In the hours before
Special weather statement, Aug 11, 5:59 PM CDT, 56 minutes before
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</html>Special weather statement, Aug 11, 6:06 PM CDT, 49 minutes before
Special Weather Statement National Weather Service Birmingham AL 606 PM CDT Tue Aug 11 2020 ALZ030-031-112345- Greene AL-Sumter AL- 606 PM CDT Tue Aug 11 2020 ...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL GREENE AND NORTH CENTRAL SUMTER COUNTIES UNTIL 645 PM CDT... At 606 PM CDT, Doppler radar was tracking a strong thunderstorm near Gainesville, or 12 miles west of Eutaw. This storm was nearly stationary. Winds in excess of 40 mph will be possible with this storm. Locations impacted include... Boligee, Gainesville, West Greene, New West Greene, Clinton and New Mount Hebron. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3271 8822 3294 8819 3297 8796 3271 8801 TIME...MOT...LOC 2306Z 240DEG 1KT 3284 8810 89^GSatterwhite
Local storm report, Aug 11, 6:12 PM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
612 PM CDT TUE AUG 11 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM TSTM WND DMG 1 SSE ROCK CREEK 33.47N 87.08W
08/11/2020 JEFFERSON AL TRAINED SPOTTER
1 LARGE TREE DOWN WITH 53 MPH GUST REPORTED.
DIME-SIZE HAIL ALSO OBSERVED.
&&
GMSLocal storm report, Aug 11, 6:20 PM CDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
620 PM CDT TUE AUG 11 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0414 PM TSTM WND DMG 1 N STEWARTVILLE 33.10N 86.24W
08/11/2020 COOSA AL EMERGENCY MNGR
TREES AND POWER LINES WERE BLOWN DOWN AND
SOME ROADWAYS WERE IMPASSABLE. THE DOWNED
TREES WERE ON CHATHAM ROAD, SR 68, BICE
ROAD, AND HIGHWAY 231. ONE TREE HAS FALLEN
ON A HOME.
&&
MALSpecial weather statement, Aug 11, 6:55 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Birmingham AL 655 PM CDT Tue Aug 11 2020 ALZ023-120030- Tuscaloosa AL- 655 PM CDT Tue Aug 11 2020 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN TUSCALOOSA COUNTY UNTIL 730 PM CDT... At 655 PM CDT, Doppler radar was tracking a strong thunderstorm near Jena, or 13 miles southwest of Northport, moving southeast at 10 mph. Pea size hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Fosters, Ralph and Romulus. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3323 8777 3306 8764 3302 8783 3321 8784 TIME...MOT...LOC 2355Z 327DEG 8KT 3312 8778 89^GSatterwhite
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 7:17 PM CDT | Special Weather Statement | BMX | Russell | 43 min |
| Aug 10, 7:24 PM CDT | Special Weather Statement | BMX | Pike | 51 min |
| Aug 10, 7:49 PM CDT | Special Weather Statement | BMX | Barbour | 41 min |
| Aug 10, 8:31 PM CDT | Special Weather Statement | BMX | Barbour | 29 min |
| Aug 10, 9:24 PM CDT | Special Weather Statement | BMX | Marshall | 51 min |
| Aug 11, 12:08 PM CDT | Special Weather Statement | BMX | Chilton | 37 min |
| Aug 11, 12:27 PM CDT | Special Weather Statement | BMX | Wilcox | 33 min |
| Aug 11, 12:47 PM CDT | Severe Thunderstorm Warning | BMX | Barbour, Pike | 23 min |
| Aug 11, 1:23 PM CDT | Special Weather Statement | BMX | Tallapoosa | 37 min |
| Aug 11, 1:24 PM CDT | Special Weather Statement | BMX | Elmore | 36 min |
| Aug 11, 1:30 PM CDT | Special Weather Statement | BMX | Lowndes | 30 min |
| Aug 11, 1:37 PM CDT | Severe Thunderstorm Warning | BMX | Lowndes | 22 min |
| Aug 11, 1:56 PM CDT | Special Weather Statement | BMX | Montgomery | 34 min |
| Aug 11, 2:01 PM CDT | Special Weather Statement | BMX | Lowndes | 29 min |
| Aug 11, 2:14 PM CDT | Special Weather Statement | BMX | Lowndes | 31 min |
| Aug 11, 2:21 PM CDT | Special Weather Statement | BMX | Jefferson | 24 min |
| Aug 11, 2:25 PM CDT | Special Weather Statement | BMX | Lee | 35 min |
| Aug 11, 2:36 PM CDT | Severe Thunderstorm Warning | BMX | Elmore, Montgomery | 39 min |
| Aug 11, 2:55 PM CDT | Special Weather Statement | BMX | Autauga | 35 min |
| Aug 11, 3:02 PM CDT | Special Weather Statement | BMX | Pike | 28 min |
| Aug 11, 3:05 PM CDT | Severe Thunderstorm Warning | BMX | Pike | 28 min |
| Aug 11, 3:12 PM CDT | Special Weather Statement | BMX | Macon | 48 min |
| Aug 11, 3:12 PM CDT | Severe Thunderstorm Warning | BMX | Autauga, Dallas | 15 min |
| Aug 11, 3:37 PM CDT | Special Weather Statement | BMX | Pike | 38 min |
| Aug 11, 4:00 PM CDT | Special Weather Statement | BMX | Bullock | 30 min |
| Aug 11, 4:20 PM CDT | Special Weather Statement | BMX | Bullock | 40 min |
| Aug 11, 5:11 PM CDT | Special Weather Statement | BMX | Perry | 34 min |
| Aug 11, 5:32 PM CDT | Special Weather Statement | BMX | Marengo | 43 min |
| Aug 11, 5:37 PM CDT | Special Weather Statement | BMX | Jefferson | 23 min |
| Aug 11, 5:59 PM CDT | Special Weather Statement | BMX | Shelby | 31 min |
| Aug 11, 6:02 PM CDT | Special Weather Statement | BMX | Perry | 43 min |
| Aug 11, 6:06 PM CDT | Special Weather Statement | BMX | Greene | 39 min |
Nearby
Special Weather Statements in Alabama, 2020Every special weather statement in 2020
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.