Alert archive / Arkansas / Winter Storm Watches in 2021

Winter Storm Watch 2, NWS Little Rock, AR

February 9, 202123 counties in Arkansas

NWS Little Rock, AR issued this winter storm watch at Feb 9, 2021, 4:38 AM CST for 23 counties in Arkansas. It took effect at Feb 10, 2021, 6:00 PM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 9, 2021, 4:38 AM CST (10:38 UTC)
In effect from: Feb 10, 2021, 6:00 PM CST
Expired: Feb 10, 2021, 3:39 AM CST
In force
Issued by: NWS Little Rock, AR

All 23 counties

Arkansas County, AR, Cleburne County, AR, Conway County, AR, Faulkner County, AR, Garland County, AR, Grant County, AR, Hot Spring County, AR, Independence County, AR, Izard County, AR, Jackson County, AR, Jefferson County, AR, Lawrence County, AR, Lonoke County, AR, Monroe County, AR, Perry County, AR, Prairie County, AR, Pulaski County, AR, Randolph County, AR, Saline County, AR, Sharp County, AR, Stone County, AR, White County, AR, Woodruff County, AR

The radar

The Little Rock radar (KLZK), 45 km from the middle of the area, began a volume at 10:38 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 00:00Z, 10.6 hours before the alert went out and 186 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 503 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 334 m²/s²
0-3 km storm-relative helicity: 489 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 winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Little Rock, AR wrote its last area forecast discussion before this winter storm watch went out at Feb 9, 4:22 AM CST, 16 minutes earlier.

Area forecast discussion, Feb 9, 4:22 AM CST, 16 minutes before

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Hazardous weather outlook, Feb 8, 5:00 AM CST, 23 hours 38 minutes before

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The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 9, 3:29 PM CST	Ice Storm Warning	LZK	Arkansas, Bradley, Calhoun, Cleburne, Cleveland, Dallas and 22 more	45 hr
Feb 9, 3:29 PM CST	Winter Weather Advisory	LZK	Baxter, Conway, Fulton, Marion	45 hr

Nearby

Winter Storm Watches in Arkansas, 2021 Every winter storm watch 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.