Alert archive / Nebraska / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 592

July 19, 20014 counties in Kansas; 21 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jul 19, 2001, 7:30 PM CDT for 4 counties in Kansas; 21 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 19, 2001, 7:30 PM CDT (00:30 UTC)
Expired: Jul 20, 2001, 1:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 25 counties

Jewell County, KS, Norton County, KS, Phillips County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Hall County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Nuckolls County, NE, Phelps County, NE, Red Willow County, NE, Sherman County, NE, Valley County, NE, Webster County, NE

Warnings issued inside it

4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 19, 8:16 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	59 min
Jul 19, 8:47 PM CDT	Severe Thunderstorm Warning	GID	Jewell	43 min
Jul 19, 9:07 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	53 min
Jul 19, 10:00 PM CDT	Severe Thunderstorm Warning	LBF	Lincoln	45 min

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 109 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: 2389 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 2241 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 59 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 20, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	Arthur, Blaine, Box Butte, Buffalo, Chase, Cherry and 24 more	5 hr

Nearby

Severe Thunderstorm Watches in Nebraska, 2001 Severe Thunderstorm Watches in Kansas, 2001 Every severe thunderstorm watch in 2001

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.