Alert archive / Arkansas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 199, NWS Memphis, TN

July 1, 20204 counties in Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Jul 1, 2020, 3:22 PM CDT for 4 counties in Arkansas. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 1, 2020, 3:22 PM CDT (20:22 UTC)
Expired: Jul 1, 2020, 4:00 PM CDT
In force: 38 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Crittenden County, AR, Cross County, AR, Mississippi County, AR, Poinsett County, AR

The radar

The Memphis radar (KNQA), 54 km from the middle of the area, began a volume at 20:24 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

Little Rock, AR (KLZK), launched 12:00Z, 8.4 hours before the alert went out and 84 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: 1981 J/kg
Mixed-layer CIN: -109 J/kg
Mixed-layer LCL: 621 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: 61 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 1, 2:41 PM CDT, 41 minutes earlier.

Area forecast discussion, Jul 1, 2:41 PM CDT, 41 minutes before

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Hazardous weather outlook, Jul 1, 2:50 PM CDT, 32 minutes before

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In the hours before

Special weather statement, Jul 1, 12:54 PM CDT, 2 hours 28 minutes before

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Special weather statement, Jul 1, 1:39 PM CDT, 1 hour 43 minutes before

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Special weather statement, Jul 1, 2:37 PM CDT, 45 minutes before

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Special weather statement, Jul 1, 2:40 PM CDT, 42 minutes before

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Special weather statement, Jul 1, 2:43 PM CDT, 39 minutes before

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Special weather statement, Jul 1, 3:06 PM CDT, 16 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 11:41 PM CDT	Special Weather Statement	MEG	Tishomingo	49 min
Jul 1, 12:36 AM CDT	Special Weather Statement	MEG	Prentiss	24 min
Jul 1, 12:58 AM CDT	Special Weather Statement	MEG	Itawamba	47 min
Jul 1, 3:53 AM CDT	Areal Flood Advisory	MEG	Alcorn, Tishomingo	3 hr
Jul 1, 5:55 AM CDT	Areal Flood Advisory	MEG	Chickasaw, Itawamba, Monroe	2 hr
Jul 1, 6:18 AM CDT	Flash Flood Warning	MEG	Chickasaw, Monroe	3 hr
Jul 1, 7:07 AM CDT	Areal Flood Advisory	MEG	Lee, Pontotoc, Union	3 hr
Jul 1, 7:36 AM CDT	Flash Flood Warning	MEG	Lee, Monroe, Pontotoc, Union	3 hr
Jul 1, 9:16 AM CDT	Flash Flood Warning EmergencyCatastrophic damage threat	MEG	Chickasaw, Lee, Monroe, Pontotoc, Union	3 hr
Jul 1, 9:49 AM CDT	River Flood Warning	MEG	Lowndes, Monroe	26 hr
Jul 1, 9:51 AM CDT	River Flood Warning	MEG	Monroe	11 hr
Jul 1, 9:54 AM CDT	River Flood Warning	MEG	Monroe	19 hr
Jul 1, 11:26 AM CDT	Flash Flood Watch	MEG	Alcorn, Benton, Calhoun, Chickasaw, DeSoto, Itawamba and 10 more	17 hr
Jul 1, 12:18 PM CDT	Areal Flood Warning	MEG	Chickasaw, Lafayette, Lee, Monroe, Pontotoc, Union	6 hr
Jul 1, 4:58 PM CDT	Special Weather Statement	MEG	Yalobusha	47 min
Jul 1, 5:49 PM CDT	Special Weather Statement	MEG	Alcorn, Prentiss, Tippah, Tishomingo	26 min
Jul 1, 5:53 PM CDT	Special Weather Statement	MEG	Calhoun, Chickasaw, Lee, Monroe, Pontotoc	37 min
Jul 1, 6:20 PM CDT	Special Weather Statement	MEG	Itawamba, Prentiss, Tishomingo	25 min
Jul 1, 6:27 PM CDT	Areal Flood Advisory	MEG	Calhoun, Chickasaw, Lafayette, Lee, Marshall, Monroe and 2 more	3 hr
Jul 1, 6:29 PM CDT	Special Weather Statement	MEG	Monroe	46 min
Jun 30, 7:18 PM CDT	Special Weather Statement	MEG	Obion, Weakley	27 min
Jun 30, 7:20 PM CDT	Special Weather Statement	MEG	Carroll	25 min
Jun 30, 7:48 PM CDT	Special Weather Statement	MEG	Carroll	27 min
Jun 30, 8:01 PM CDT	Special Weather Statement	MEG	Carroll, Crockett, Dyer, Gibson, Haywood, Lauderdale and 1 more	44 min
Jun 30, 8:34 PM CDT	Special Weather Statement	MEG	Benton, Henry	26 min
Jun 30, 8:36 PM CDT	Special Weather Statement	MEG	Chester, Decatur, Hardin, McNairy	39 min
Jun 30, 9:13 PM CDT	Special Weather Statement	MEG	Hardin	32 min
Jun 30, 9:25 PM CDT	Areal Flood Advisory	MEG	Benton, Carroll, Decatur, Henry	3 hr
Jun 30, 9:51 PM CDT	Special Weather Statement	MEG	Hardin	39 min
Jun 30, 10:56 PM CDT	Areal Flood Advisory	MEG	Chester, Decatur, Hardeman, Hardin, Henderson, McNairy and 1 more	3 hr
Jul 1, 12:12 AM CDT	Special Weather Statement	MEG	McNairy	33 min
Jul 1, 1:20 AM CDT	Areal Flood Advisory	MEG	Chester, Henderson, Madison	3 hr
Jul 1, 1:42 AM CDT	Flash Flood Warning	MEG	Chester, Madison	3 hr
Jul 1, 1:56 AM CDT	Flash Flood Warning	MEG	Chester, Hardin, McNairy	3 hr
Jul 1, 4:24 AM CDT	Flash Flood Warning	MEG	Chester, Hardin, McNairy, Madison	5 hr
Jul 1, 8:45 AM CDT	Special Weather Statement	MEG	Decatur	30 min
Jul 1, 3:22 PM CDT	Areal Flood Advisory	MEG	Dyer, Gibson, Lake, Lauderdale, Obion	113 min
Jul 1, 3:54 PM CDT	Severe Thunderstorm Warning	MEG	Lauderdale, Shelby, Tipton	51 min
Jul 1, 4:00 PM CDT	Special Weather Statement	MEG	Fayette	15 min
Jul 1, 4:13 PM CDT	Special Weather Statement	MEG	Hardeman	32 min
Jul 1, 4:24 PM CDT	Areal Flood Advisory	MEG	Henry, Obion, Weakley	3 hr
Jul 1, 1:39 PM CDT	Special Weather Statement	MEG	Clay	36 min
Jul 1, 2:37 PM CDT	Special Weather Statement	MEG	Craighead, Cross, Poinsett	23 min
Jul 1, 2:43 PM CDT	Special Weather Statement	MEG	Greene	32 min
Jul 1, 2:57 PM CDT	Severe Thunderstorm Warning	MEG	Cross, Poinsett	33 min
Jul 1, 3:06 PM CDT	Special Weather Statement	MEG	Craighead	24 min
Jul 1, 3:24 PM CDT	Areal Flood Advisory	MEG	Clay, Craighead, Cross, Greene, Mississippi, Poinsett	2 hr
Jul 1, 3:27 PM CDT	Special Weather Statement	MEG	Mississippi	33 min
Jul 1, 3:42 PM CDT	Special Weather Statement	MEG	Crittenden	33 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2020 Every severe thunderstorm warning in 2020

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.