Alert archive / Nebraska / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 560

July 16, 200131 counties in Nebraska; 25 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 16, 2001, 4:00 PM CDT for 31 counties in Nebraska; 25 counties in South Dakota. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 16, 2001, 4:00 PM CDT (21:00 UTC)
Expired
Jul 16, 2001, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 56 counties

Antelope County, NE, Boone County, NE, Boyd County, NE, Buffalo County, NE, Butler County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dixon County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Holt County, NE, Howard County, NE, Knox County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Valley County, NE, Wayne County, NE, Wheeler County, NE, York County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The North Platte radar (KLNX), 186 km from the middle of the area, began a volume at 21:00 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 16, 4:15 PM CDTSevere Thunderstorm WarningLBFHolt, Rock60 min
Jul 16, 4:45 PM CDTSevere Thunderstorm WarningLBFHolt60 min
Jul 16, 5:11 PM CDTFlash Flood WarningLBFRock3 hr
Jul 16, 5:22 PM CDTSevere Thunderstorm WarningLBFRock53 min
Jul 16, 5:41 PM CDTSevere Thunderstorm WarningLBFHolt34 min
Jul 16, 5:50 PM CDTTornado WarningLBFHolt25 min
Jul 16, 5:58 PM CDTSevere Thunderstorm WarningOAXAntelope, Knox62 min
Jul 16, 6:16 PM CDTTornado WarningLBFHolt14 min
Jul 16, 6:40 PM CDTSevere Thunderstorm WarningLBFHolt65 min
Jul 16, 6:48 PM CDTTornado WarningOAXAntelope42 min
Jul 16, 6:54 PM CDTTornado WarningLBFHolt36 min
Jul 16, 6:59 PM CDTSevere Thunderstorm WarningOAXKnox61 min
Jul 16, 7:28 PM CDTTornado WarningOAXAntelope32 min
Jul 16, 7:45 PM CDTSevere Thunderstorm WarningLBFHolt30 min
Jul 16, 7:48 PM CDTSevere Thunderstorm WarningOAXPierce42 min
Jul 16, 8:09 PM CDTSevere Thunderstorm WarningOAXAntelope36 min
Jul 16, 8:13 PM CDTFlash Flood WarningOAXAntelope3 hr
Jul 16, 8:20 PM CDTSevere Thunderstorm WarningOAXMadison40 min
Jul 16, 8:28 PM CDTTornado WarningOAXMadison32 min
Jul 16, 8:29 PM CDTSevere Thunderstorm WarningOAXPierce46 min
Jul 16, 8:39 PM CDTTornado WarningOAXAntelope36 min
Jul 16, 9:00 PM CDTSevere Thunderstorm WarningOAXMadison60 min
Jul 16, 9:13 PM CDTSevere Thunderstorm WarningOAXAntelope, Pierce32 min
Jul 16, 9:16 PM CDTSevere Thunderstorm WarningLBFWheeler29 min
Jul 16, 9:19 PM CDTSevere Thunderstorm WarningFSDDixon26 min
Jul 16, 9:23 PM CDTSevere Thunderstorm WarningOAXBoone37 min
Jul 16, 9:32 PM CDTTornado WarningOAXMadison28 min
Jul 16, 9:52 PM CDTSevere Thunderstorm WarningOAXPlatte38 min
Jul 16, 9:57 PM CDTSevere Thunderstorm WarningOAXBoone, Madison33 min

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 9.0 hours before the alert went out and 193 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-pSkew-T log-p diagram, Omaha, NE at 12:00Z on 2001-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 115 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 12:00Z on 2001-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
115 J/kg
Mixed-layer CIN
-299 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

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.

Nearby

Severe Thunderstorm Watches in Nebraska, 2001Severe Thunderstorm Watches in South Dakota, 2001Every 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; radar from the NEXRAD Level II archive.