Alert archive / Mississippi / Special Weather Statements in 2021

Special Weather Statement, NWS Memphis, TN

March 25, 2021Tishomingo County, Mississippi

NWS Memphis, TN issued this special weather statement at Mar 25, 2021, 7:15 PM CDT for Tishomingo County, Mississippi. It was in force for 30 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
Mar 25, 2021, 7:15 PM CDT (00:15 UTC)
Expired
Mar 25, 2021, 7:45 PM CDT
In force
30 min
Issued by
NWS Memphis, TN

County Tishomingo County, MS

The radar

The Columbus AFB radar (KGWX), 120 km from the middle of the area, began a volume at 00:19 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

Nashville Metro, TN (KBNA), launched 00:00Z, 0.3 hours before the alert went out and 195 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 00:00Z on 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 290 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 00:00Z on 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 657 square meters per square second.1939587897117136Sfc1 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
290 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
615 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
657 m²/s²
0-3 km storm-relative helicity
631 m²/s²
Significant tornado parameter
1.0
Supercell composite
7.4

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 Memphis, TN wrote its last area forecast discussion before this special weather statement went out at Mar 25, 6:02 PM CDT, 1 hour 13 minutes earlier.

Area forecast discussion, Mar 25, 6:02 PM CDT, 1 hour 13 minutes before
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Hazardous weather outlook, Mar 25, 5:34 AM CDT, 13 hours 41 minutes before
Hazardous Weather Outlook
National Weather Service Memphis TN
534 AM CDT Thu Mar 25 2021

ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-261245-
Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay-
Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur-
Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood-
Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS-
Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot-
Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis-
Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley-
Yalobusha-
534 AM CDT Thu Mar 25 2021

This hazardous weather outlook is for portions of East Arkansas...
the Missouri Bootheel...North Mississippi...and West Tennessee.

.DAY ONE...Today and Tonight

Severe thunderstorms capable of producing damaging winds, large
hail, heavy rain, and tornadoes will be likely today. Some storms
could produce strong, long tracked tornadoes. A High Risk of
Severe Weather exists for portions of the forecast area today.
Please see website for details.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Severe thunderstorms will possible across the Mid-South from late
Friday night through Saturday night. Stay tuned to the latest
forecasts as this system evolves.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed today into tonight. Please
relay any information about observed severe weather to the NWS
while following all local, state, and CDC guidelines.

In the hours before

Special weather statement, Mar 25, 2:42 PM CDT, 4 hours 33 minutes before
Special Weather Statement
National Weather Service Memphis TN
242 PM CDT Thu Mar 25 2021

MSZ016-017-252015-
Itawamba MS-Lee MS-
242 PM CDT Thu Mar 25 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 315 PM CDT
FOR...

Northwestern Itawamba County in northeastern Mississippi...
Southeastern Lee County in northeastern Mississippi...

At 242 PM CDT...a strong thunderstorm producing winds at least 40 mph
was located near Plantersville, or near Tombigbee State Park, moving
northeast at 45 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in northwestern Itawamba and southeastern Lee Counties should
monitor this storm closely.

LAT...LON 3411 8868 3416 8871 3439 8834 3428 8825
TIME...MOT...LOC 1942Z 237DEG 41KT 3417 8862
Special weather statement, Mar 25, 3:06 PM CDT, 4 hours 9 minutes before
Special Weather Statement
National Weather Service Memphis TN
306 PM CDT Thu Mar 25 2021

MSZ006-017-252030-
Itawamba MS-Tishomingo MS-
306 PM CDT Thu Mar 25 2021

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 330 PM CDT
FOR...

Northern Itawamba County in northeastern Mississippi...
Southeastern Tishomingo County in northeastern Mississippi...

At 306 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located near Fairview, or near
Fulton, moving northeast at 50 mph.

Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.

People in northern Itawamba and southeastern Tishomingo Counties
should monitor this storm closely.

LAT...LON 3431 8818 3422 8847 3446 8844 3447 8843
      3446 8833 3454 8833 3468 8813
TIME...MOT...LOC 2006Z 238DEG 45KT 3432 8835
Special weather statement, Mar 25, 5:14 PM CDT, 2 hours 1 minute before
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Special weather statement, Mar 25, 5:20 PM CDT, 1 hour 55 minutes before
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Special weather statement, Mar 25, 6:45 PM CDT, 30 minutes before
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Special weather statement, Mar 25, 7:15 PM CDT, 0 minutes before
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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 26, 2:32 PM CDTRiver Flood AdvisoryMEGDecatur, Perry32 hr

Nearby

Special Weather Statements in Mississippi, 2021Every special weather statement in 2021

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.