Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 39, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Mar 27, 2021, 10:39 PM CDT for Harrison County, Panola County, Texas; Bossier Parish, Caddo Parish, Louisiana. It was in force for 51 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 27, 2021, 10:39 PM CDT (03:39 UTC)
- Expired
- Mar 27, 2021, 11:30 PM CDT
- In force
- 51 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bossier Parish, LA, Caddo Parish, LA, Harrison County, TX, Panola County, TX
The radar
The Shreveport radar (KSHV), 6 km from the middle of the area, began a volume at 03:43 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 27, 10:52 PM CDT | TSTM WND DMG | 5 Ese Greenwood, LA | A LARGE TREE WAS DOWN COMPLETELY BLOCKING BUNCOMBE ROAD AT WOOLWORTH ROAD. |
| Mar 27, 11:19 PM CDT | HAIL 0.75 | 3 Ssw Eastwood, LA | REPORT FROM MPING: DIME (0.75 IN.). |
| Mar 27, 11:31 PM CDT | HAIL 1 | 1 Ese Haughton, LA | QUARTER AND SLIGHTLY LARGER SIZE HAIL FELL IN HAUGHTON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 27, 3:25 PM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 00:00Z, 3.7 hours before the alert went out and 13 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.
- Mixed-layer CAPE
- 1297 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 953 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 8.1
The text
As transmitted.
774
WUUS54 KSHV 280339
SVRSHV
LAC015-017-TXC203-365-280430-
/O.NEW.KSHV.SV.W.0039.210328T0339Z-210328T0430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Shreveport LA
1039 PM CDT Sat Mar 27 2021
The National Weather Service in Shreveport has issued a
* Severe Thunderstorm Warning for...
Southwestern Caddo Parish in northwestern Louisiana...
Central Bossier Parish in northwestern Louisiana...
Southeastern Harrison County in northeastern Texas...
Northeastern Panola County in northeastern Texas...
* Until 1130 PM CDT.
* At 1038 PM CDT, a severe thunderstorm was located near Elysian
Fields, or 19 miles southwest of Shreveport, moving northeast at 55
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Shreveport, Bossier City, Haughton, Greenwood, Waskom, Deberry,
Elysian Fields, Eastwood, Fosters, Ferguson, Spring Ridge,
Fillmore, Cross Lake, Bodcau, Koran, Keithville, Princeton,
Bellevue, Barksdale Air Force Base and Robson.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 AM CDT for northwestern
Louisiana...and northeastern Texas.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3240 9421 3276 9345 3242 9345 3234 9375
3234 9378 3232 9381 3223 9416
TIME...MOT...LOC 0338Z 243DEG 46KT 3235 9409
HAIL...1.00IN
WIND...60MPH
$$
151 follow-up statement
083
WWUS54 KSHV 280406
SVSSHV
Severe Weather Statement
National Weather Service Shreveport LA
1106 PM CDT Sat Mar 27 2021
TXC203-365-280415-
/O.CAN.KSHV.SV.W.0039.000000T0000Z-210328T0430Z/
Harrison TX-Panola TX-
1106 PM CDT Sat Mar 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HARRISON AND
NORTHEASTERN PANOLA COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 AM CDT for northwestern
Louisiana.
LAT...LON 3255 9385 3274 9345 3242 9345 3234 9375
3234 9378 3232 9382 3231 9383
TIME...MOT...LOC 0405Z 244DEG 51KT 3247 9373
$$
LAC015-017-280430-
/O.CON.KSHV.SV.W.0039.000000T0000Z-210328T0430Z/
Caddo LA-Bossier LA-
1106 PM CDT Sat Mar 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTH CENTRAL CADDO AND CENTRAL BOSSIER PARISHES...
At 1105 PM CDT, a severe thunderstorm was located near Shreveport,
moving northeast at 60 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Shreveport, Bossier City, Haughton, Eastwood, Fosters, Ferguson,
Princeton, Fillmore, Bodcau, Bellevue, Koran, Barksdale Air Force
Base, Keithville, Robson, Forbing, Sligo, Red Chute, Curtis and
Taylortown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 AM CDT for northwestern
Louisiana.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3255 9385 3274 9345 3242 9345 3234 9375
3234 9378 3232 9382 3231 9383
TIME...MOT...LOC 0405Z 244DEG 51KT 3247 9373
HAIL...1.00IN
WIND...60MPH
$$
15The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 27, 7:03 PM CDT | Special Weather Statement | SHV | Cass | 42 min |
| Mar 27, 7:20 PM CDT | Severe Thunderstorm Warning | SHV | Bowie, Cass | 40 min |
| Mar 27, 7:31 PM CDT | Tornado Warning | SHV | Harrison, Marion | 44 min |
| Mar 27, 7:39 PM CDT | Tornado Warning | SHV | Panola | 51 min |
| Mar 27, 8:04 PM CDT | Tornado Warning | SHV | Harrison, Marion | 41 min |
| Mar 27, 9:45 PM CDT | Special Weather Statement | SHV | Rusk | 45 min |
| Mar 27, 9:52 PM CDT | Severe Thunderstorm Warning | SHV | Harrison, Panola, Rusk | 53 min |
| Mar 28, 1:33 AM CDT | Special Weather Statement | SHV | Shelby | 42 min |
| Mar 27, 8:11 PM CDT | Tornado Warning | SHV | Caddo, De Soto | 49 min |
| Mar 27, 8:46 PM CDT | Tornado Warning | SHV | Bienville, Bossier, Caddo, Webster | 19 min |
| Mar 27, 10:23 PM CDT | Severe Thunderstorm Warning | SHV | Claiborne, Union | 67 min |
| Mar 27, 11:30 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Claiborne, Webster | 45 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Severe Thunderstorm Warnings in Louisiana, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.