Alert archive / Alabama / Special Weather Statements in 2017
Special Weather Statement, NWS Birmingham, AL
NWS Birmingham, AL issued this special weather statement at Feb 7, 2017, 2:11 PM CST for Tuscaloosa County, Alabama. It was in force for 49 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
- Feb 7, 2017, 2:11 PM CST (20:11 UTC)
- Expired
- Feb 7, 2017, 3:00 PM CST
- In force
- 49 min
- Issued by
- NWS Birmingham, AL
County Tuscaloosa County, AL
The radar
The Columbus AFB radar (KGWX), 82 km from the middle of the area, began a volume at 20:14 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, 8.2 hours before the alert went out and 99 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 880 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 224 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 Feb 7, 11:18 AM CST, 2 hours 53 minutes earlier.
Area forecast discussion, Feb 7, 11:18 AM CST, 2 hours 53 minutes before
Area Forecast Discussion National Weather Service Birmingham AL 1118 AM CST Tue Feb 7 2017 .UPDATE... For 18Z Aviation. && .DISCUSSION... The first line of thunderstorms has moved into west Alabama this morning. The activity has plenty of lightning, but the air mass is still fairly stable with surface based lifted indices just below zero across far west Alabama. These storms could produce some small hail for the next few hours due to higher mid level lapse rates in this area. Outside the convective line over west Alabama, the activity has been mostly showers, due to strong capping inversion from 12z BMX sounding. As expected, the early morning clouds ad rain will help stabilize the air mass for this afternoon. For this afternoon, the most unstable air will remain well west of the current rain activity, closer to the Mississippi river. However, the air mass across east Alabama will have a chance to destabilize, due to greater heating and less contamination from current rain activity. For now, a low confidence severe threat will be maintained for all of central Alabama. 58/rose && .AVIATION... 18Z TAF Discussion. IFR ceilings have generally improved to MVFR across the area as the area of rain and embedded tsra continues to spread eastward. Have included tempo groups for this afternoon to indicate time that the stronger storms are most likely to occur but this could change based on future development and will amend as necessary. The bulk of the heaviest activity should be moving east of the area by 00z but expect clouds and visibilities to lower to IFR or LIFT overnight as plenty of low level moisture lingers. Ceilings will gradually lift after 12Z but MVFR conditiones expected to persist through the remainder of the forecast period. Southerly wind flow will persist throughout the forecast period. 41 && .FIRE WEATHER... Showers and thunderstorms will spread across the area Today as an upper level impulse moves across the area. A cold front will push southward across central Alabama Wednesday night, and bring another round of showers and thunderstorms. Clearing and colder Thursday and Friday. && .PRELIMINARY POINT TEMPS/POPS... Gadsden 66 55 71 43 51 / 80 40 30 30 0 Anniston 68 57 73 45 53 / 80 40 20 30 0 Birmingham 68 56 73 44 53 / 80 40 20 20 0 Tuscaloosa 70 58 74 44 56 / 80 20 20 20 0 Calera 68 57 74 45 56 / 80 40 20 20 0 Auburn 68 58 72 51 58 / 80 40 20 20 0 Montgomery 73 59 77 53 61 / 80 40 20 20 0 Troy 71 59 76 53 62 / 80 40 20 20 0 && .BMX WATCHES/WARNINGS/ADVISORIES/... None. &&
Hazardous weather outlook, Feb 7, 1:23 PM CST, 48 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BIRMINGHAM AL 123 PM CST Tue Feb 7 2017 ALZ011>015-017>050-082230- 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- 123 PM CST Tue Feb 7 2017 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE COUNTIES SERVED BY THE NATIONAL WEATHER SERVICE OFFICE IN BIRMINGHAM. .DAY ONE...OUTLOOK THROUGH TONIGHT. THERE IS A LOW CONFIDENCE THREAT FOR SEVERE THUNDERSTORMS THROUGH 5 PM FOR AREAS SOUTH OF A LINE FROM SELMA TO AUBURN. THE THREATS INCLUDING DAMAGING WINDS, LARGE HAIL, AND AN ISOLATED TORNADO. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. A SECOND SYSTEM COULD BRING A LOW END THREAT OF DAMAGING WINDS AND LARGE HAIL FOR WEDNESDAY AFTERNOON AND EVENING ACROSS MUCH OF CENTRAL ALABAMA AS A COLD FRONT MOVES THROUGH THE AREA. .SPOTTER INFORMATION STATEMENT... ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT MAY BE NECESSARY THIS AFTERNOON AND AGAIN ON WEDNESDAY.
In the hours before
Special weather statement, Feb 7, 9:23 AM CST, 4 hours 48 minutes before
Special Weather Statement
National Weather Service Birmingham AL
923 AM CST TUE FEB 7 2017
ALZ023-071600-
Tuscaloosa AL-
923 AM CST TUE FEB 7 2017
...SIGNIFICANT WEATHER ADVISORY FOR TUSCALOOSA COUNTY UNTIL 1000 AM
CST...
At 922 AM CST, Doppler radar was tracking strong thunderstorms along
a line extending from 7 miles west of Samantha to 6 miles northwest
of Eutaw. Movement was east at 45 mph.
Pea size hail and winds in excess of 40 mph will be possible with
these storms.
Locations impacted include...
Tuscaloosa, Northport, Holt, Moundville, Lake View, Brookwood,
Coaling, Vance, Coker, Tuscaloosa Amphitheater, Lake Wildwood,
Mercedes Benz Of Alabama, Binion Creek Landing, Bryant Denny Stadium,
Shelton State Community College, Lake Lurleen State Park, University
Mall, Deerlick Creek Campgrounds, Bankhead Lock And Dam and Abernant.
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 3352 8784 3352 8767 3361 8763 3359 8732
3352 8732 3351 8726 3349 8730 3349 8733
3346 8734 3331 8716 3328 8707 3322 8710
3324 8714 3319 8720 3313 8720 3313 8728
3309 8731 3301 8732 3301 8771 3302 8783
TIME...MOT...LOC 1522Z 259DEG 37KT 3346 8773 3291 8795
56Special weather statement, Feb 7, 2:11 PM CST, 0 minutes before
Special Weather Statement National Weather Service Birmingham AL 211 PM CST TUE FEB 7 2017 ALZ022-023-072100- Pickens AL-Tuscaloosa AL- 211 PM CST TUE FEB 7 2017 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PICKENS AND NORTHWESTERN TUSCALOOSA COUNTIES UNTIL 300 PM CST... At 210 PM CST, Doppler radar was tracking a strong thunderstorm near Gordo, moving east at 45 mph. Nickel size hail will be possible with this storm. Locations impacted include... Northern Tuscaloosa, Northport, Gordo, Reform, Carrollton, Holt, Coker, Tuscaloosa Regional Airport, Binion Creek Landing, Samantha, Lake Lurleen State Park, Tierce Pattton Bridge, Kirk, Flatwoods, Buhl, Elrod, Lake Nicol, Sexton Bend, Lake Tuscaloosa and Holt Lock And Dam. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 3315 8805 3333 8810 3354 8754 3324 8744 TIME...MOT...LOC 2010Z 255DEG 41KT 3327 8799 17/KLAWS
The office that day
Everything else NWS Birmingham, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 6, 9:51 PM CST | Dense Fog Advisory | BMX | Blount, Calhoun, Cherokee, Clay, Cleburne, Etowah and 7 more | 8 hr |
| Feb 7, 9:23 AM CST | Special Weather Statement | BMX | Tuscaloosa | 37 min |
| Feb 7, 1:29 PM CST | Tornado Warning | BMX | Montgomery | 31 min |
| Feb 7, 1:46 PM CST | Severe Thunderstorm Warning | BMX | Bullock, Macon | 44 min |
| Feb 7, 1:56 PM CST | Severe Thunderstorm Warning | BMX | Barbour, Bullock, Pike | 49 min |
| Feb 7, 2:24 PM CST | Severe Thunderstorm Warning | BMX | Lee, Macon, Russell | 66 min |
Nearby
Special Weather Statements in Alabama, 2017Every special weather statement 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.