Alert archive / Alabama / Special Weather Statements in 2019

Special Weather Statement, NWS Huntsville, AL

August 7, 2019Madison County, Alabama

NWS Huntsville, AL issued this special weather statement at Aug 7, 2019, 3:04 PM CDT for Madison County, Alabama. It was in force for 26 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 7, 2019, 3:04 PM CDT (20:04 UTC)
Expired
Aug 7, 2019, 3:30 PM CDT
In force
26 min
Issued by
NWS Huntsville, AL

County Madison County, AL

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 8.1 hours before the alert went out and 143 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-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2019-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 387 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2019-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 151 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
387 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
929 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
151 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

As transmitted.

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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 Huntsville, AL wrote its last area forecast discussion before this special weather statement went out at Aug 7, 12:55 PM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, Aug 7, 12:55 PM CDT, 2 hours 9 minutes before
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Hazardous weather outlook, Aug 7, 11:56 AM CDT, 3 hours 8 minutes before
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In the hours before

Special weather statement, Aug 7, 1:35 PM CDT, 1 hour 29 minutes before
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Special weather statement, Aug 7, 1:48 PM CDT, 1 hour 16 minutes before
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Special weather statement, Aug 7, 2:10 PM CDT, 54 minutes before
Special Weather Statement
National Weather Service Huntsville AL
210 PM CDT Wed Aug 7 2019

ALZ006-009-TNZ076-096-097-072000-
Madison AL-Jackson AL-Franklin TN-Moore TN-Lincoln TN-
210 PM CDT Wed Aug 7 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN JACKSON...NORTHERN
MADISON...MOORE...LINCOLN AND FRANKLIN COUNTIES UNTIL 300 PM CDT...

At 208 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms from 10 miles northeast of Ardmore to the Estill
Springs area moving southeast at 10 mph.

Pea size hail and winds around 45 mph will be possible with these
storms.

Locations impacted include...
Northern Huntsville, Winchester, Fayetteville, Moores Mill,
Meridianville, Lynchburg, Hazel Green, Decherd, Estill Springs and
Cowan.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3541 8626 3539 8628 3534 8624 3533 8620
      3536 8616 3534 8603 3523 8588 3508 8586
      3494 8599 3487 8627 3475 8661 3493 8678
      3499 8678 3499 8684 3526 8682 3525 8675
      3533 8660 3537 8659 3532 8642
TIME...MOT...LOC 1908Z 315DEG 10KT 3508 8652

KTW
Special weather statement, Aug 7, 2:18 PM CDT, 46 minutes before
Special Weather Statement
National Weather Service Huntsville AL
218 PM CDT Wed Aug 7 2019

ALZ008-010-071945-
Marshall AL-DeKalb AL-
218 PM CDT Wed Aug 7 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MARSHALL AND
SOUTHWESTERN DEKALB COUNTIES UNTIL 245 PM CDT...

At 217 PM CDT, Doppler radar was tracking a strong thunderstorm near
Crossville, or near Boaz, moving southeast at 20 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Albertville, Boaz, Crossville, Geraldine, McVille, Arona, Painter,
Kilpatrick, Hustleville and Rodentown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3420 8611 3419 8611 3419 8617 3418 8620
      3424 8626 3440 8609 3422 8584 3420 8584
TIME...MOT...LOC 1917Z 317DEG 19KT 3425 8608

12
Special weather statement, Aug 7, 3:04 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Huntsville AL
304 PM CDT Wed Aug 7 2019

ALZ006-009-072030-
Madison AL-Jackson AL-
304 PM CDT Wed Aug 7 2019

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN JACKSON AND
NORTHEASTERN MADISON COUNTIES UNTIL 330 PM CDT...

At 304 PM CDT, Doppler radar was tracking a strong thunderstorm over
New Market, moving southeast at 35 mph.

Pea size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

Locations impacted include...
Moores Mill, Meridianville, Hazel Green, Gurley, New Market,
Maysville, Princeton, Plevna, Estillfork and Brownsboro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Very heavy rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3489 8610 3475 8620 3469 8638 3487 8658
      3499 8652 3499 8634
TIME...MOT...LOC 2004Z 304DEG 32KT 3490 8644

KTW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 11:24 PM CDTSpecial Weather StatementHUNLimestone, Madison51 min
Aug 7, 12:36 AM CDTSpecial Weather StatementHUNColbert39 min
Aug 7, 12:43 AM CDTSevere Thunderstorm WarningHUNColbert, Lauderdale47 min
Aug 7, 1:12 AM CDTSevere Thunderstorm WarningHUNColbert, Franklin, Lauderdale, Lawrence48 min
Aug 7, 1:55 AM CDTAreal Flood WarningHUNColbert, Lauderdale3 hr
Aug 7, 1:58 AM CDTSpecial Weather StatementHUNFranklin, Lawrence47 min
Aug 7, 2:18 PM CDTSpecial Weather StatementHUNMarshall27 min
Aug 7, 3:32 PM CDTSpecial Weather StatementHUNDeKalb43 min
Aug 7, 3:47 PM CDTSpecial Weather StatementHUNColbert43 min
Aug 7, 3:50 PM CDTSevere Thunderstorm WarningHUNColbert, Lauderdale25 min
Aug 7, 3:55 PM CDTSevere Thunderstorm WarningHUNJackson, Madison35 min
Aug 7, 4:12 PM CDTFlash Flood WarningHUNJackson, Madison3 hr
Aug 7, 4:19 PM CDTSpecial Weather StatementHUNJackson41 min
Aug 7, 4:28 PM CDTFlash Flood WarningHUNColbert, Lauderdale3 hr
Aug 7, 4:38 PM CDTSpecial Weather StatementHUNColbert52 min
Aug 7, 4:58 PM CDTSpecial Weather StatementHUNLimestone, Madison47 min
Aug 7, 5:37 PM CDTSevere Thunderstorm WarningHUNLimestone, Madison, Morgan38 min
Aug 7, 5:55 PM CDTSpecial Weather StatementHUNLawrence50 min
Aug 7, 6:01 PM CDTSpecial Weather StatementHUNFranklin44 min
Aug 7, 6:13 PM CDTSpecial Weather StatementHUNCullman, Marshall, Morgan47 min
Aug 6, 9:41 PM CDTSpecial Weather StatementHUNFranklin, Lincoln, Moore49 min
Aug 7, 1:35 PM CDTSpecial Weather StatementHUNMoore25 min
Aug 7, 1:42 PM CDTSevere Thunderstorm WarningHUNLincoln, Moore23 min
Aug 7, 1:48 PM CDTSpecial Weather StatementHUNLincoln27 min
Aug 7, 2:10 PM CDTSpecial Weather StatementHUNFranklin, Lincoln, Moore50 min
Aug 7, 2:20 PM CDTSevere Thunderstorm WarningHUNFranklin, Lincoln, Moore25 min

Nearby

Special Weather Statements in Alabama, 2019Every special weather statement in 2019

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.