Alert archive / Nebraska / Severe Thunderstorm Watches in 2001

Severe Thunderstorm Watch 736

September 13, 20016 counties in Colorado; 5 counties in Kansas; 23 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Sep 13, 2001, 4:30 PM MDT for 6 counties in Colorado; 5 counties in Kansas; 23 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Sep 13, 2001, 4:30 PM MDT (22:30 UTC)
Expired
Sep 13, 2001, 10:00 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center
All 34 counties

Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Arthur County, NE, Banner County, NE, Chase County, NE, Cheyenne County, NE, Custer County, NE, Dawson County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Furnas County, NE, Garden County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Keith County, NE, Kimball County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Phelps County, NE, Red Willow County, NE

The radar

The Goodland radar (KGLD), 157 km from the middle of the area, began a volume at 22:32 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

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

IssuedProductOfficeCountiesLasted
Sep 13, 5:10 PM MDTSevere Thunderstorm WarningGLDYuma65 min
Sep 13, 6:25 PM MDTSevere Thunderstorm WarningLBFGarden65 min

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.5 hours before the alert went out and 137 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, Denver, CO at 12:00Z on 2001-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2001-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 78 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3196 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
78 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Colorado, 2001Severe Thunderstorm Watches in Kansas, 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.