Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS San Angelo, TX

April 28, 2021Brown County, Texas

NWS San Angelo, TX issued this special weather statement at Apr 28, 2021, 4:24 PM CDT for Brown County, Texas. It was in force for 36 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: Apr 28, 2021, 4:24 PM CDT (21:24 UTC)
Expired: Apr 28, 2021, 5:00 PM CDT
In force: 36 min
Issued by: NWS San Angelo, TX

County Brown County, TX

The radar

The Dyess AFB radar (KDYX), 56 km from the middle of the area, began a volume at 21:23 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

Fort Worth, TX (KFWD), launched 12:00Z, 9.4 hours before the alert went out and 192 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: 678 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 635 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 290 m²/s²
0-3 km storm-relative helicity: 394 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 12.5

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 San Angelo, TX wrote its last area forecast discussion before this special weather statement went out at Apr 28, 2:27 PM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Apr 28, 2:27 PM CDT, 1 hour 57 minutes before

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Hazardous weather outlook, Apr 28, 2:33 PM CDT, 1 hour 51 minutes before

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In the hours before

Local storm report, Apr 28, 2:35 PM CDT, 1 hour 49 minutes before

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Special weather statement, Apr 28, 2:52 PM CDT, 1 hour 32 minutes before

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Local storm report, Apr 28, 2:59 PM CDT, 1 hour 25 minutes before

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Local storm report, Apr 28, 3:59 PM CDT, 25 minutes before

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Special weather statement, Apr 28, 4:24 PM CDT, 0 minutes before

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The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 27, 7:17 PM CDT	Special Weather Statement	SJT	Fisher	58 min
Apr 27, 7:25 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	65 min
Apr 27, 7:27 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	63 min
Apr 27, 7:33 PM CDT	Areal Flood Advisory	SJT	Fisher	117 min
Apr 27, 8:11 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	64 min
Apr 27, 8:27 PM CDT	Tornado Warning	SJT	Fisher	33 min
Apr 27, 8:29 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	61 min
Apr 27, 8:34 PM CDT	Special Weather Statement	SJT	Haskell	41 min
Apr 27, 8:46 PM CDT	Tornado Warning	SJT	Nolan	44 min
Apr 27, 8:54 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	66 min
Apr 27, 8:56 PM CDT	Special Weather Statement	SJT	Haskell	64 min
Apr 27, 9:12 PM CDT	Tornado Warning	SJT	Fisher, Jones, Nolan, Taylor	48 min
Apr 27, 9:20 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	40 min
Apr 27, 9:33 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Throckmorton	57 min
Apr 27, 9:53 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	67 min
Apr 27, 10:01 PM CDT	Special Weather Statement	SJT	Shackelford	44 min
Apr 28, 1:11 AM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	64 min
Apr 28, 1:59 AM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	61 min
Apr 28, 2:32 AM CDT	Tornado Warning	SJT	Jones	28 min
Apr 28, 2:57 AM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	63 min
Apr 28, 3:49 AM CDT	Tornado Warning	SJT	Shackelford	26 min
Apr 28, 3:51 AM CDT	Severe Thunderstorm Warning	SJT	Shackelford, Throckmorton	24 min
Apr 28, 4:18 AM CDT	Areal Flood Advisory	SJT	Throckmorton	3 hr
Apr 28, 4:28 AM CDT	Special Weather Statement	SJT	Coke, Sterling	47 min
Apr 28, 4:57 AM CDT	Special Weather Statement	SJT	Sterling	48 min
Apr 28, 5:03 AM CDT	Special Weather Statement	SJT	Nolan	42 min
Apr 28, 5:12 AM CDT	Areal Flood Advisory	SJT	Nolan	107 min
Apr 28, 5:34 AM CDT	Areal Flood Advisory	SJT	Taylor	3 hr
Apr 28, 6:04 AM CDT	Special Weather Statement	SJT	Shackelford	41 min
Apr 28, 6:25 AM CDT	Flash Flood Warning	SJT	Callahan, Jones, Shackelford, Taylor	3 hr
Apr 28, 6:39 AM CDT	Areal Flood Advisory	SJT	Callahan, Shackelford	3 hr
Apr 28, 6:47 AM CDT	Special Weather Statement	SJT	Shackelford	28 min
Apr 28, 9:27 AM CDT	Areal Flood Advisory	SJT	Callahan, Shackelford, Taylor	3 hr
Apr 28, 2:07 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Runnels	53 min
Apr 28, 2:52 PM CDT	Special Weather Statement	SJT	Runnels	38 min
Apr 28, 3:16 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Runnels, Taylor	44 min
Apr 28, 3:52 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman	38 min
Apr 28, 6:10 PM CDT	Special Weather Statement	SJT	Brown	50 min

Nearby

Special Weather Statements in Texas, 2021 Every 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.