Alert archive / Arkansas / Freeze Warnings in 2021
Freeze Warning 4, NWS Shreveport, LA
NWS Shreveport, LA issued this freeze warning at Nov 12, 2021, 9:40 AM CST for Bowie County, Red River County, Texas; 6 counties in Arkansas; McCurtain County, Oklahoma. It took effect at Nov 12, 2021, 9:00 PM CST. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 12, 2021, 9:40 AM CST (15:40 UTC)
- In effect from
- Nov 12, 2021, 9:00 PM CST
- Expired
- Nov 13, 2021, 9:00 AM CST
- In force
- 12 hr
- Issued by
- NWS Shreveport, LA
Counties Hempstead County, AR, Howard County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Sevier County, AR, McCurtain County, OK, Bowie County, TX, Red River County, TX
The radar
The Shreveport radar (KSHV), 147 km from the middle of the area, began a volume at 15:45 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
Shreveport, LA (KSHV), launched 12:00Z, 3.7 hours before the alert went out and 146 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2587 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 223 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
354 WWUS74 KSHV 121540 NPWSHV URGENT - WEATHER MESSAGE National Weather Service Shreveport LA 940 AM CST Fri Nov 12 2021 ARZ050-051-059>061-070-OKZ077-TXZ096-097-130345- /O.NEW.KSHV.FZ.W.0004.211113T0300Z-211113T1500Z/ Sevier-Howard-Little River-Hempstead-Nevada-Miller-McCurtain- Red River-Bowie- Including the cities of De Queen, Nashville, Mineral Springs, Dierks, Ashdown, Hope, Prescott, Texarkana, Idabel, Broken Bow, Clarksville, and Bogata 940 AM CST Fri Nov 12 2021 ...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM CST SATURDAY... The National Weather Service in Shreveport has issued a Freeze Warning, which is in effect from 9 PM this evening to 9 AM CST Saturday. * EVENT...Cold high pressure building across the region will bring overnight low temperatures down to near freezing overnight tonight. * TIMING...Temperatures forecast to approach freezing in some areas late in the evening and fall slightly below freezing across much of warned area by daybreak. Temperatures to rise above freezing by mid-morning. * IMPACT...Precautions should be taken to protect tender vegetation prone to frost or freeze conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ 05
2 follow-up statements
870 WWUS74 KSHV 130353 NPWSHV URGENT - WEATHER MESSAGE National Weather Service Shreveport LA 953 PM CST Fri Nov 12 2021 ARZ050-051-059>061-070-OKZ077-TXZ096-097-131500- /O.CON.KSHV.FZ.W.0004.000000T0000Z-211113T1500Z/ Sevier-Howard-Little River-Hempstead-Nevada-Miller-McCurtain- Red River-Bowie- Including the cities of De Queen, Nashville, Mineral Springs, Dierks, Ashdown, Hope, Prescott, Texarkana, Idabel, Broken Bow, Clarksville, and Bogata 953 PM CST Fri Nov 12 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... * WHAT...Temperatures near or just below freezing. * WHERE...Portions of Northeast Texas, Southwest Arkansas, and Southeast Oklahoma. * WHEN...Through 9 AM CDT Saturday. * IMPACTS...Precautions should be taken to protect tender vegetation prone to frost or freeze conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Freeze Warning means sub-freezing temperatures are imminent or highly likely. These conditions will kill crops and other sensitive vegetation. && $$ 12
689 WWUS74 KSHV 130754 NPWSHV URGENT - WEATHER MESSAGE National Weather Service Shreveport LA 154 AM CST Sat Nov 13 2021 ARZ050-051-059>061-070-OKZ077-TXZ096-097-131500- /O.CON.KSHV.FZ.W.0004.000000T0000Z-211113T1500Z/ Sevier-Howard-Little River-Hempstead-Nevada-Miller-McCurtain- Red River-Bowie- Including the cities of De Queen, Nashville, Mineral Springs, Dierks, Ashdown, Hope, Prescott, Texarkana, Idabel, Broken Bow, Clarksville, and Bogata 154 AM CST Sat Nov 13 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Temperatures near or just below freezing. * WHERE...Portions of Northeast Texas, Southwest Arkansas, and Southeast Oklahoma. * WHEN...Through 9 AM CDT Saturday. * IMPACTS...Precautions should be taken to protect tender vegetation prone to frost or freeze conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ 09
Nearby
Freeze Warnings in Arkansas, 2021Freeze Warnings in Texas, 2021Freeze Warnings in Oklahoma, 2021Every freeze 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.