Alert archive / Alabama / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 52, NWS Birmingham, AL

June 22, 2018Elmore County, Macon County, Tallapoosa County, Alabama

NWS Birmingham, AL issued this severe thunderstorm warning at Jun 22, 2018, 5:53 PM CDT for Elmore County, Macon County, Tallapoosa 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: Jun 22, 2018, 5:53 PM CDT (22:53 UTC)
Expired: Jun 22, 2018, 6:20 PM CDT
In force: 27 min
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Elmore County, AL, Macon County, AL, Tallapoosa County, AL

The radar

The Maxwell AFB radar (KMXX), 10 km from the middle of the area, began a volume at 22:58 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 10.9 hours before the alert went out and 126 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: 73 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 1092 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 189 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

242 
WUUS54 KBMX 222253
SVRBMX
ALC051-087-123-222345-
/O.NEW.KBMX.SV.W.0052.180622T2253Z-180622T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Birmingham AL
553 PM CDT FRI JUN 22 2018

The National Weather Service in Birmingham has issued a

* Severe Thunderstorm Warning for...
  Southeastern Elmore County in east central Alabama...
  Northern Macon County in southeastern Alabama...
  South central Tallapoosa County in east central Alabama...

* Until 645 PM CDT.

* At 552 PM CDT, a severe thunderstorm was located over Reeves
  Airport, or over Tallassee, moving east at 30 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Tuskegee, Tallassee, Notasulga, Milstead, Franklin, Liberty City,
  Reeves Airport, Lake Tuskegee, Tallapoosa City, Tuskegee National
  Forest, Yates Dam, I 85 Rest Area, Uphapee Creek and Moton Field
  Municipal Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Birmingham.

&&

LAT...LON 3241 8551 3244 8597 3257 8596 3259 8570
      3258 8569 3258 8566 3257 8566 3251 8553
TIME...MOT...LOC 2252Z 266DEG 27KT 3251 8590 

HAIL...1.00IN
WIND...60MPH
 
$$

89^GSatterwhite

2 follow-up statements

841 
WWUS54 KBMX 222309
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
609 PM CDT FRI JUN 22 2018

ALC051-123-222318-
/O.CAN.KBMX.SV.W.0052.000000T0000Z-180622T2345Z/
Elmore AL-Tallapoosa AL-
609 PM CDT FRI JUN 22 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ELMORE AND SOUTH
CENTRAL TALLAPOOSA COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3241 8551 3243 8581 3256 8579 3257 8569
      3258 8566 3257 8566 3251 8553
TIME...MOT...LOC 2308Z 276DEG 20KT 3250 8574 

$$

ALC087-222345-
/O.CON.KBMX.SV.W.0052.000000T0000Z-180622T2345Z/
Macon AL-
609 PM CDT FRI JUN 22 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHEASTERN MACON COUNTY...

At 608 PM CDT, a severe thunderstorm was located near Tuskegee,
moving east at 25 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Tuskegee, Notasulga, Franklin, Tuskegee National Forest, Lake
Tuskegee, I 85 Rest Area, Uphapee Creek and Moton Field Municipal
Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Birmingham.

&&

LAT...LON 3241 8551 3243 8581 3256 8579 3257 8569
      3258 8566 3257 8566 3251 8553
TIME...MOT...LOC 2308Z 276DEG 20KT 3250 8574 

HAIL...0.75IN
WIND...60MPH
 
$$

89^GSatterwhite

865 
WWUS54 KBMX 222320
SVSBMX

Severe Weather Statement
National Weather Service Birmingham AL
620 PM CDT FRI JUN 22 2018

ALC087-222330-
/O.CAN.KBMX.SV.W.0052.000000T0000Z-180622T2345Z/
Macon AL-
620 PM CDT FRI JUN 22 2018

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MACON COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3241 8551 3243 8581 3256 8579 3257 8569
      3258 8566 3257 8566 3251 8553
TIME...MOT...LOC 2320Z 266DEG 27KT 3251 8563 

$$

89^GSatterwhite

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 22, 3:02 PM CDT, 2 hours 51 minutes earlier.

Area forecast discussion, Jun 22, 3:02 PM CDT, 2 hours 51 minutes before

Area Forecast Discussion
National Weather Service Birmingham AL
302 PM CDT Fri Jun 22 2018

.UPDATE...
MESOSCALE UPDATE.

&&

.SHORT TERM...
This afternoon and early evening.

An upper level low remains to the north near the border of
Illinois and Indiana state line while an occluded low was analyzed
over eastern Illinois. A stationary front extended east of the
triple point across the Ohio River Valley and into West Virginia
and Virginia. A cold front extended from the triple point
southeast into Kentucky and stretched southwest into west
Tennessee and into central Arkansas.

Cloud cover has helped to limit destabilization in the lower
levels and this has kept the stronger storms more isolated. There
still remains potential for a few severe thunderstorms with
damaging wind being the primary risk. There remains a non zero
tornado threat but the risk remains minimal. Fast storm motions
from 30-40 mph is helping to reduce the risk of localized flooding
despite rain rates averaging from 1.00 to 1.50 inches per hour.

Deep layer unidirectional wind shear will continue to support
organized convection with higher longevity than typical summertime
convection. Storm-relative helicity values observed on the 12Z
sounding were supportive of some broad storm-scale rotation as has
been exhibited recently in storms that moved across Pickens and
into Tuscaloosa County. A brief tornado can not be entirely ruled
out, especially where storms interact with low-level boundaries
where low-level directional shear will be maximized.

An outflow boundary from convection last evening drifted south to
near the U.S. Highway 80 corridor this morning and this boundary
is now observed by radar lifting northeast and is acting as a
focus for shower and thunderstorm activity across our southwest
and south-central counties. Meanwhile, we expect ongoing activity
to continue to move generally east across central Alabama through
late afternoon.

05

.LONG TERM...
Saturday through Thursday.

The southern extent of moderate westerly flow at 500mb will reside
over North Alabama on Saturday along with a thermal gradient
associated with prior convection. Warm advection and lift near
this feature should continue to serve as a focus for showers and
storms with the highest chances across the North.

After Saturday, the 500mb pattern will become more typical of
summer, and the aforementioned thermal gradient should retreat
northward on Sunday as higher heights develop across the Deep
South. Convection should be isolated and limited to north of
Interstate 20. Rain chances may slowly increase for Monday through
Thursday as the ridge weakens.

87/Grantham

&&

.AVIATION...
18Z TAF Discussion.

Conditions will now begin to deteriorate across the area as
showers and storms begin to move into the area. Look for impacts
at TCL and within the hour and then EET, ASN, and ANB by 19 to
20Z. Look for the impacts to begin at MGM and TOI after 23Z.
Thunderstorms will not persists in a area for long so went with
generally only 2 to 3 hours with each tempo. Drier tonight with
low clouds developing after 8Z. Another MCS will move into the
area late morning, generally across the north, so added in
prob30 for the northern sites for TSRA after 16Z.

16

&&

.FIRE WEATHER...

Relatively high rain chances will continue through Saturday
especially across the northern half of the area. Patchy fog may
develop in the overnight and early morning hours where rainfall
occurs. There are no fire weather concerns at this time.

&&

.PRELIMINARY POINT TEMPS/POPS...
Gadsden     69  88  71  92  71 /  50  60  20  20  30
Anniston    70  89  71  92  72 /  60  60  10  10  20
Birmingham  72  90  73  93  73 /  40  50  10  10  20
Tuscaloosa  72  93  74  94  74 /  40  40  10  10  10
Calera      72  90  73  92  73 /  50  40  10  10  10
Auburn      71  89  73  91  73 /  60  40  10  10  10
Montgomery  74  93  74  94  74 /  60  30  10  10  10
Troy        74  92  73  92  73 /  50  20  10  10  10

&&

.BMX WATCHES/WARNINGS/ADVISORIES/...
None.

&&

Hazardous weather outlook, Jun 22, 4:38 AM CDT, 13 hours 15 minutes before

Hazardous Weather Outlook
National Weather Service Birmingham AL
438 AM CDT Fri Jun 22 2018

ALZ011>015-017>050-231245-
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-
438 AM CDT Fri Jun 22 2018

This Hazardous Weather Outlook is for the counties served by the
National Weather Service office in Birmingham.

.DAY ONE...Today and Tonight.

There is a risk of severe storms this afternoon and evening across
all of Central Alabama. However, the favored area for severe storms
will be along the I-20 corridor with the main threat being damaging
straight line winds.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Activation of storm spotters and emergency management may be needed
today and this evening.

In the hours before

Special weather statement, Jun 22, 5:03 PM CDT, 50 minutes before

Special Weather Statement
National Weather Service Birmingham AL
503 PM CDT FRI JUN 22 2018

ALZ024>026-222230-
Jefferson AL-Shelby AL-St. Clair AL-
503 PM CDT FRI JUN 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN SHELBY...
SOUTHEASTERN JEFFERSON AND SOUTHWESTERN ST. CLAIR COUNTIES UNTIL 530
PM CDT...

At 503 PM CDT, Doppler radar was tracking a strong thunderstorm over
Highland Lakes, or over Chelsea, moving northeast at 35 mph.

Winds in excess of 45 mph will be possible with this storm.

Locations impacted include...
Hoover, Vestavia Hills, Mountain Brook, Leeds, Moody, Chelsea,
Wilsonville, Indian Springs Village, Vincent, Harpersville, Westover,
Vandiver, Barber Motorsports Park, Greystone, Highland Lakes, Cahaba
Heights, Fowler Lake, The Summit, Lake Purdy and Brook Highland.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3345 8632 3341 8634 3341 8636 3339 8638
      3338 8636 3336 8634 3321 8662 3343 8683
      3360 8649
TIME...MOT...LOC 2203Z 237DEG 30KT 3336 8664

75

Local storm report, Jun 22, 5:11 PM CDT, 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
511 PM CDT FRI JUN 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0504 PM     HAIL             DEXTER                  32.64N 86.15W
06/22/2018  E1.00 INCH       ELMORE             AL   EMERGENCY MNGR

            REPORTED ALONG DEXTER ROAD NEAR SANTUCK.

&&

DAVIS

Local storm report, Jun 22, 5:14 PM CDT, 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
514 PM CDT FRI JUN 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0448 PM     TSTM WND DMG     2 E JACKSONS' GAP       32.89N 85.78W
06/22/2018                   TALLAPOOSA         AL   EMERGENCY MNGR

            TREE DOWN AT EAGLE CREEK ROAD AND CROUCH
            ROAD.

&&

DAVIS

Special weather statement, Jun 22, 5:15 PM CDT, 38 minutes before

Special Weather Statement
National Weather Service Birmingham AL
515 PM CDT FRI JUN 22 2018

ALZ029-038-222245-
Randolph AL-Chambers AL-
515 PM CDT FRI JUN 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN RANDOLPH AND NORTH
CENTRAL CHAMBERS COUNTIES UNTIL 545 PM CDT...

At 515 PM CDT, Doppler radar was tracking a strong thunderstorm near
Welch, or near Roanoke, moving northeast at 30 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Roanoke, Standing Rock, Crystal Lake, Welch, Dickert, Rock Mills, Big
Springs, Paran and Roanoke Municipal Airport.

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.

&&

LAT...LON 3306 8523 3309 8553 3335 8528 3307 8522
TIME...MOT...LOC 2215Z 226DEG 28KT 3309 8542

89^GSatterwhite

Local storm report, Jun 22, 5:26 PM CDT, 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BIRMINGHAM AL
526 PM CDT FRI JUN 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0448 PM     TSTM WND DMG     4 NNE DADEVILLE         32.88N 85.73W
06/22/2018                   TALLAPOOSA         AL   EMERGENCY MNGR

            TREES DOWN ON DUDLEYVILLE ROAD AND MCKELVEY
            STREET.

&&

DAVIS

Special weather statement, Jun 22, 5:44 PM CDT, 9 minutes before

Special Weather Statement
National Weather Service Birmingham AL
544 PM CDT FRI JUN 22 2018

ALZ037-045-047-222315-
Lee AL-Tallapoosa AL-Macon AL-
544 PM CDT FRI JUN 22 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN LEE...NORTHEASTERN
MACON AND SOUTHEASTERN TALLAPOOSA COUNTIES UNTIL 615 PM CDT...

At 544 PM CDT, Doppler radar was tracking a strong thunderstorm near
Tallapoosa City, or near Tallassee, moving east at 30 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Auburn, Tuskegee, Tallassee, Notasulga, Waverly, Martin Dam, Liberty
City, Reeves Airport, Tallapoosa City, Loachapoka, Yates Dam, Roxana,
Reeltown and Yates Reservoir.

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 3251 8548 3250 8589 3265 8589 3266 8591
      3269 8591 3273 8552
TIME...MOT...LOC 2244Z 266DEG 27KT 3261 8586

89^GSatterwhite

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 11:12 AM CDT	Special Weather Statement	BMX	Lamar	33 min
Jun 22, 11:40 AM CDT	Special Weather Statement	BMX	Lamar	35 min
Jun 22, 12:43 PM CDT	Special Weather Statement	BMX	Walker	32 min
Jun 22, 1:14 PM CDT	Special Weather Statement	BMX	Pickens	31 min
Jun 22, 1:40 PM CDT	Special Weather Statement	BMX	Fayette	35 min
Jun 22, 2:06 PM CDT	Special Weather Statement	BMX	St. Clair	24 min
Jun 22, 2:08 PM CDT	Special Weather Statement	BMX	Tuscaloosa	37 min
Jun 22, 2:35 PM CDT	Special Weather Statement	BMX	Tuscaloosa	25 min
Jun 22, 2:53 PM CDT	Special Weather Statement	BMX	Jefferson	37 min
Jun 22, 3:03 PM CDT	Severe Thunderstorm Warning	BMX	Jefferson	42 min
Jun 22, 3:08 PM CDT	Special Weather Statement	BMX	Greene, Hale	52 min
Jun 22, 3:18 PM CDT	Special Weather Statement	BMX	Hale	27 min
Jun 22, 3:59 PM CDT	Special Weather Statement	BMX	Lee	31 min
Jun 22, 4:00 PM CDT	Special Weather Statement	BMX	Coosa	30 min
Jun 22, 4:28 PM CDT	Special Weather Statement	BMX	Elmore	32 min
Jun 22, 4:31 PM CDT	Special Weather Statement	BMX	Perry	29 min
Jun 22, 4:32 PM CDT	Special Weather Statement	BMX	Chambers, Clay, Tallapoosa	28 min
Jun 22, 4:46 PM CDT	Severe Thunderstorm Warning	BMX	Chambers, Tallapoosa	44 min
Jun 22, 4:59 PM CDT	Severe Thunderstorm Warning	BMX	Elmore	28 min
Jun 22, 5:03 PM CDT	Special Weather Statement	BMX	Shelby	27 min
Jun 22, 5:15 PM CDT	Special Weather Statement	BMX	Randolph	30 min
Jun 22, 5:44 PM CDT	Special Weather Statement	BMX	Macon	31 min
Jun 22, 6:23 PM CDT	Special Weather Statement	BMX	Macon	37 min
Jun 22, 6:25 PM CDT	Special Weather Statement	BMX	Winston	35 min
Jun 22, 6:43 PM CDT	Severe Thunderstorm Warning	BMX	Winston	19 min
Jun 22, 6:48 PM CDT	Special Weather Statement	BMX	Lee	27 min
Jun 22, 6:57 PM CDT	Severe Thunderstorm Warning	BMX	Lee, Russell	14 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2018 Every severe thunderstorm warning in 2018

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.