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Atlanta Weather Advisories

SEVERE THUNDERSTORM WARNING

Issue Date: 1155 AM CDT Fri May 24 2024

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR NORTHEASTERN CHICKASAW AND NORTHWESTERN MONROE COUNTIES
At 1155 AM CDT, a severe thunderstorm was located near Okolona, moving east at 20 mph. HAZARD
Ping pong ball size hail. SOURCE
Radar indicated. IMPACT
People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. Locations impacted include
Amory, Aberdeen, Okolona, New Wren, Nettleton, Egypt, Wren, Buena Vista, and Leotis.
PRECAUTIONARY/PREPAREDNESS ACTIONS
For your protection move to an interior room on the lowest floor of a building. && LAT
LON 3402 8887 3409 8868 3409 8854 3383 8848 3381 8880 3384 8884 TIME
MOT
LOC 1655Z 263DEG 17KT 3392 8875 HAIL THREAT
RADAR INDICATED MAX HAIL SIZE
1.50 IN WIND THREAT
RADAR INDICATED MAX WIND GUST
MSC017-095-241715- /O.CON.KMEG.SV.W.0118.000000T0000Z-240524T1715Z/ Chickasaw MS-Monroe MS- 1155 AM CDT Fri May 24 2024
A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR NORTHEASTERN CHICKASAW AND NORTHWESTERN MONROE COUNTIES
At 1155 AM CDT, a severe thunderstorm was located near Okolona, moving east at 20 mph. HAZARD
Ping pong ball size hail. SOURCE
Radar indicated. IMPACT
People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. Locations impacted include
Amory, Aberdeen, Okolona, New Wren, Nettleton, Egypt, Wren, Buena Vista, and Leotis.
PRECAUTIONARY/PREPAREDNESS ACTIONS
For your protection move to an interior room on the lowest floor of a building. && LAT
LON 3402 8887 3409 8868 3409 8854 3383 8848 3381 8880 3384 8884 TIME
MOT
LOC 1655Z 263DEG 17KT 3392 8875 HAIL THREAT
RADAR INDICATED MAX HAIL SIZE
1.50 IN WIND THREAT
RADAR INDICATED MAX WIND GUST
Special Weather Statement National Weather Service Memphis TN 1143 AM CDT Fri May 24 2024 MSZ016-023-024-241715- Monroe MS-Lee MS-Chickasaw MS- 1143 AM CDT Fri May 24 2024
A STRONG THUNDERSTORM WILL IMPACT EASTERN CHICKASAW
SOUTHEASTERN LEE AND NORTHWESTERN MONROE COUNTIES THROUGH 1215 PM CDT
At 1143 AM CDT, Doppler radar was tracking a strong thunderstorm near Trebloc, or 7 miles southwest of Okolona, moving east at 20 mph. HAZARD
Winds in excess of 30 mph and penny size hail. SOURCE
Radar indicated. IMPACT
Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include
Amory, Aberdeen, Okolona, Shannon, New Wren, Trebloc, Nettleton, Becker, Van Vleet, Egypt, Wren, McCondy, Bigbee, Leotis, and Buena Vista.
PRECAUTIONARY/PREPAREDNESS ACTIONS
If outdoors, consider seeking shelter inside a building. && LAT
LON 3399 8896 3415 8856 3410 8854 3409 8854 3383 8844 3381 8875 3381 8891 TIME
MOT
LOC 1643Z 259DEG 16KT 3391 8882 MAX HAIL SIZE
0.75 IN MAX WIND GUST
30 MPH

FLOOD WATCH

Issue Date: 1103 AM CDT Fri May 24 2024

FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING
WHAT
Flooding caused by excessive rainfall is possible.
WHERE
Portions of East Arkansas, including the following areas, Clay, Craighead, Crittenden, Cross, Greene, Lee AR, Mississippi, Phillips, Poinsett and St. Francis, North Mississippi, including the following areas, Alcorn, Benton MS, Calhoun, Chickasaw, Coahoma, DeSoto, Itawamba, Lafayette, Lee MS, Marshall, Monroe, Panola, Pontotoc, Prentiss, Quitman, Tallahatchie, Tate, Tippah, Tishomingo, Tunica, Union and Yalobusha, Southeast Missouri, including the following areas, Dunklin and Pemiscot, and West Tennessee, including the following areas, Benton TN, Carroll, Chester, Crockett, Decatur, Dyer, Fayette, Gibson, Hardeman, Hardin, Haywood, Henderson, Henry, Lake, Lauderdale, Madison, McNairy, Obion, Shelby, Tipton and Weakley.
WHEN
Through Monday morning.
IMPACTS
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas.
ADDITIONAL DETAILS
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&

SEVERE THUNDERSTORM WARNING

Issue Date: 1155 AM CDT Fri May 24 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR NORTHEASTERN CHICKASAW AND NORTHWESTERN MONROE COUNTIES... At 1155 AM CDT, a severe thunderstorm was located near Okolona, moving east at 20 mph. HAZARD...Ping pong ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. Locations impacted include... Amory, Aberdeen, Okolona, New Wren, Nettleton, Egypt, Wren, Buena Vista, and Leotis. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3402 8887 3409 8868 3409 8854 3383 8848 3381 8880 3384 8884 TIME...MOT...LOC 1655Z 263DEG 17KT 3392 8875 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST... MSC017-095-241715- /O.CON.KMEG.SV.W.0118.000000T0000Z-240524T1715Z/ Chickasaw MS-Monroe MS- 1155 AM CDT Fri May 24 2024 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR NORTHEASTERN CHICKASAW AND NORTHWESTERN MONROE COUNTIES... At 1155 AM CDT, a severe thunderstorm was located near Okolona, moving east at 20 mph. HAZARD...Ping pong ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. Locations impacted include... Amory, Aberdeen, Okolona, New Wren, Nettleton, Egypt, Wren, Buena Vista, and Leotis. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3402 8887 3409 8868 3409 8854 3383 8848 3381 8880 3384 8884 TIME...MOT...LOC 1655Z 263DEG 17KT 3392 8875 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST... Special Weather Statement National Weather Service Memphis TN 1143 AM CDT Fri May 24 2024 MSZ016-023-024-241715- Monroe MS-Lee MS-Chickasaw MS- 1143 AM CDT Fri May 24 2024 ...A STRONG THUNDERSTORM WILL IMPACT EASTERN CHICKASAW...SOUTHEASTERN LEE AND NORTHWESTERN MONROE COUNTIES THROUGH 1215 PM CDT... At 1143 AM CDT, Doppler radar was tracking a strong thunderstorm near Trebloc, or 7 miles southwest of Okolona, moving east at 20 mph. HAZARD...Winds in excess of 30 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Amory, Aberdeen, Okolona, Shannon, New Wren, Trebloc, Nettleton, Becker, Van Vleet, Egypt, Wren, McCondy, Bigbee, Leotis, and Buena Vista. PRECAUTIONARY/PREPAREDNESS ACTIONS... If outdoors, consider seeking shelter inside a building. && LAT...LON 3399 8896 3415 8856 3410 8854 3409 8854 3383 8844 3381 8875 3381 8891 TIME...MOT...LOC 1643Z 259DEG 16KT 3391 8882 MAX HAIL SIZE...0.75 IN MAX WIND GUST...30 MPH

FLOOD WATCH

Issue Date: 1103 AM CDT Fri May 24 2024
...FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING... * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of East Arkansas, including the following areas, Clay, Craighead, Crittenden, Cross, Greene, Lee AR, Mississippi, Phillips, Poinsett and St. Francis, North Mississippi, including the following areas, Alcorn, Benton MS, Calhoun, Chickasaw, Coahoma, DeSoto, Itawamba, Lafayette, Lee MS, Marshall, Monroe, Panola, Pontotoc, Prentiss, Quitman, Tallahatchie, Tate, Tippah, Tishomingo, Tunica, Union and Yalobusha, Southeast Missouri, including the following areas, Dunklin and Pemiscot, and West Tennessee, including the following areas, Benton TN, Carroll, Chester, Crockett, Decatur, Dyer, Fayette, Gibson, Hardeman, Hardin, Haywood, Henderson, Henry, Lake, Lauderdale, Madison, McNairy, Obion, Shelby, Tipton and Weakley. * WHEN...Through Monday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
Atlanta, MS Weather Warnings, Advisories and Alerts are issued by the National Weather Service.
E-mail these weather warnings to yourself, family or friends!

Weather Warnings Explained

National Weather Service criteria for issuing Watches / Warnings / Advisories:

  • Watches: 50% confidence of meeting Warning criteria (generally within 36-48+ hours).
  • Advisories and Warnings: 80% confidence in the event occurrence (generally within 24-36 hours).

Weather Warnings Glossary


A Severe Thunderstorm Watch is issued when severe thunderstorms are possible in and near the watch area. It does not mean that they will occur. It only means they are possible.

Severe thunderstorms are defined as follows:

1) Winds of 58 mph/93 km/h or higher

AND/OR

2) Hail 1 inch/2.54 cm in diameter or larger.

A Severe Thunderstorm Warning is issued when severe thunderstorms are occurring or imminent in the warning area.

Severe thunderstorms are defined as follows:

1) Winds of 58 mph/93 km/h or higher

AND/OR

2) Hail 1 inch/2.54 cm in diameter or larger.

Thunderstorms with wind gusts greater than or equal to 58 mph/93 km/h (50 kts) and/or hail greater than or equal to 1 inch/2.54 cm in diameter and/or a tornado.

A Tornado Watch is issued when severe thunderstorms and tornadoes are possible in and near the watch area. It does not mean that they will occur. It only means they are possible.

Severe thunderstorms are defined as follows:

1) Winds of 58 mph/93 km/h or higher

AND/OR

2) Hail 1 in/2.54 cm in diameter or larger.

Likelihood of a tornado within the given area based on radar or actual sighting; usually accompanied by conditions indicated above for "Severe Thunderstorm Warning".

A Tornado Warning is issued when a tornado is imminent. When a tornado warning is issued, seek safe shelter immediately.

When any of the following is expected within the next 12 to 36 hours.

More than one predominant hazard.

  • Winter weather event having more than one predominant hazard {ie. heavy snow and blowing snow (below blizzard conditions), snow and ice, snow and sleet, sleet and ice, or snow, sleet and ice} meeting or exceeding warning criteria for at least one of the precipitation elements.
Snow, Ocean Effect Snow, or Sleet.

A Blizzard Warning means that the following conditions are occurring or expected within the next 12 to 18 hours.
1) Snow and/or blowing snow reducing visibility to ¼ mile/.4 km or less for 3 hours or longer
AND
2)  Sustained winds of 35 mph/56 km/h or greater or frequent gusts to 35 mph/56 km/h or greater.
There is no temperature requirement that must be met to achieve blizzard conditions.

½ inch/1.27 cm or greater accretion of freezing rain in any zone.

When any of the following is expected within the next 12 to 24 hours.

More than one predominant hazard.

Winter weather event having more than one predominant hazard (i.e., snow and ice, snow and sleet, or snow, ice & sleet) meeting or exceeding advisory criteria for at least one of the precipitation elements, but remaining below warning criteria.

  • Snow, Ocean Effect Snow, and/or Sleet
    3 inches/7.6 cm averaged over a forecast zone in 12 hours.
  • Snow and Blowing Snow
    Sustained or frequent gusts of 25 to 34 mph/40 to 54 km/h accompanied by falling and blowing snow occasionally reducing visibility to less than or equal to ¼ mi/.4 km for less than 3 hours.
  • Widespread or localized blowing snow reducing visibility to less than or equal to ¼ mi/.4 km with winds less than 35 mph/56 km/h.
  • Freezing Rain
    Any accretion of freezing rain or freezing drizzle on road surfaces.
  • Black Ice
    A Special Weather Statement will usually be issued when sufficient moisture is expected to cause a thin layer of ice on road surfaces, typically on cloudless nights ("black ice"). At forecaster discretion a formal Winter Weather Advisory may be issued instead.

Sustained winds greater than or equal to 74 mph/120 km/h (greater than or equal to 64 kts) (no gust criteria) associated with a hurricane expected to affect a coastal or inland zone within 36 hours.

Sustained winds 39-73 mph/62-117 km/h (34-63 kts) (no gust criteria) associated with a tropical storm expected to affect a coastal or inland zone within 36 hours.

Short-fused warning for onset of extreme winds, defined as sustained at 111+ mph/178+ km/h (equivalent to a Category 3+ hurricane).
This is typically used for the approach of the eyewall of a major landfalling hurricane.

When the danger of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 36 hours, is in association with a tropical, subtropical, or post-tropical cyclone.

Rapid and extreme flow of high water into a normally dry area, or a rapid water level rise in a stream or creek above a predetermined flood level, beginning within a short timeframe from the onset of heavy rain.

A dam or levee failure, or water released from an ice jam is also considered.

Expected overflow or inundation by water which causes or will cause damage and/or a threat to life.

Water level at a River Forecast point along a main stem river is expected to reach or exceed flood stage.

Expected inundation by water of some low lying and poor drainage areas, resulting in a nuisance to the public but not a threat to life and property.

A Coastal Flood Warning is issued when moderate to major coastal flooding is occurring or imminent. This flooding will pose a serious risk to life and property.

Minor coastal flooding expected. Examples include: splashover that causes a few roads to be briefly impassable, standing water in parking lots, etc.

A Coastal Flood Advisory is issued when minor or nuisance coastal flooding is occurring or imminent.

Sustained winds greater than or equal to 40 mph/64 km/h (greater than or equal to 35 kts) for at least 1 hour; OR any gusts greater than or equal to 58 mph/93 km/h (greater than or equal to 50 kts).

Sustained winds 31-39 mph/49-62 km/h (27-34 kts) for at least 1 hour; OR any gusts to 46-57 mph/74-91 km/h (40-49 kts).

Daytime heat indices of greater than or equal to 105°F/40°C for 2 or more hours.

Daytime heat indices of 95°F-99°F/35°C-37°C for 2 or more hours over 2 consecutive days, or 100°F-104°F/37°C-40°C for 2 or more hours over 1 day.

Issued for non-criteria warning/advisory heat. A heat wave is defined as 3 or more days of greater than or equal to 90°F/32°C temperatures.

When minimum shelter temperature drops to less than or equal to 32°F/0°C during growing season.

Issued under clear, light wind conditions with forecast minimum shelter temperature 33-36°F/0-2°C during growing season.

Wind chill index less than or equal to -25°F/-31°C for at least 3 hours using only sustained wind.

Wind chill index between -15°F/-26°C and -24°F/-31°C for at least 3 hours using only the sustained wind.

Brief/sudden occurrence of sustained wind or frequent gusts greater than or equal to 34 kts/39 mph/63 km/h, usually associated with thunderstorms, and/or hail greater than or equal to ¾ inch/1.91 cm in diameter; also issued for waterspouts.

Sustained winds or frequent gusts greater than or equal to 64 kts/74 mph/119 km/h (greater than 2 hrs) within 24 hours from a non-tropical system (marine only).

Sustained winds or frequent gusts 48-63 kts/55-72 mph/88-116 km/h (greater than 2 hrs) within 24 hours from a non-tropical system (marine only).

Sustained winds or frequent gusts 34-47 kts/39-55 mph/63-88 km/h (greater than 2 hrs) within 24 hrs from a non-tropical system (marine only).

Sustained winds or frequent gusts 25-33 kts/29-38 mph/47-61 km/h (greater than 2 hrs) AND/OR Seas greater than or equal to 5 feet/1.52 meters within 24 hours (marine only).

When high surf poses a danger to life in the form of rip currents or breaking seas. Generally issued when 7+ foot/2.3+ meters incoming seas reported at the buoys from Memorial Day through September.

When conditions yield ice accumulation rates less than 2 cm/hr ( 0.8 inch/hour). Favorable conditions for ice accumulation occur when air temperatures over the waters are less than or equal to 23°F/-5°C and sustained winds greater than or equal to 25 kts/29 mph/47 km/h and sea surface temperatures less than or equal to 43°F/6°C and seas greater than or equal to 4 feet/1.22 meters.

When conditions yield ice accumulation rates greater than or equal to 2 cm/hr ( 0.8 inch/hr ). Favorable conditions for ice accumulation occur when air temperatures over the waters are less than or equal to 23°F/-5°C and sustained winds greater than or equal to 25 kts/29 mph/47 km/h and sea surface temperatures less than or equal to 43°F/6°C and seas greater than or equal to 4 feet/1.22 meters.

High degree of confidence that dry fuels and weather conditions support extreme fire danger within 24 hours using the following criteria as a guide:

  • Winds sustained or with frequent gusts greater than or equal to 25 mph/40 km/h.
  • Relative Humidity at or below 30% anytime during the day.
  • Rainfall amounts for the previous 5 days less than ¼ inch/.64 cm (except 3 days in pre-greenup).
  • Lightning after an extended dry period.
  • Significant dry frontal passage.
  • Dry thunderstorms.
  • Keetch-Byram Drought Index values of 300 or greater (summer only).

Widespread visibility less than or equal to ¼ mile/.4 km for at least 3 hours.

Very light ice accumulation from predominantly fog at or below freezing temperatures.

Widespread or localized smoke reducing visibilities to ¼ mile/.4 km or less.

Atmospheric conditions stable enough to cause air pollutants to accumulate in a given area. Criteria developed in conjunction with the local or state EPA and the product issued at their request.

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