Alert archive / Nebraska / Tornado Watches in 1999
Tornado Watch 370
The Storm Prediction Center issued this tornado watch at Jun 3, 1999, 7:45 PM CDT for 4 counties in Kansas; 16 counties in Nebraska. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 3, 1999, 7:45 PM CDT (00:45 UTC)
- Expired
- Jun 3, 1999, 11:00 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
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, Harlan County, NE, Kearney County, NE, Lincoln County, NE, Logan County, NE, Phelps County, NE, Sherman County, NE, Valley County, NE, Webster County, NE
The radar
The Grand Island radar (KUEX), 103 km from the middle of the area, began a volume at 00:49 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
4 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 8:15 PM CDT | Tornado Warning | GID | Phillips | 45 min |
| Jun 3, 9:28 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 62 min |
| Jun 3, 10:31 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 49 min |
| Jun 3, 10:32 PM CDT | Severe Thunderstorm Warning | GID | Valley | 58 min |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 104 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
- 2027 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 12.9
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 |
|---|---|---|---|---|
| Jun 3, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Antelope, Blaine, Boone, Boyd, Brown, Butler and 20 more | 6 hr |
| Jun 4, 2:30 AM CDT | Severe Thunderstorm Watch | SPC | Antelope, Boone, Boyd, Burt, Cedar, Cuming and 12 more | 7 hr |
| Jun 4, 4:00 PM CDT | Tornado Watch | SPC | Box Butte, Cherry, Dawes, Grant, Morrill, Scotts Bluff and 2 more | 5 hr |
| Jun 4, 6:15 PM CDT | Tornado Watch | SPC | Banner, Box Butte, Dawes, Garden, Morrill, Scotts Bluff and 2 more | 7 hr |
| Jun 4, 6:45 PM CDT | Tornado Watch | SPC | Arthur, Blaine, Brown, Chase, Cherry, Custer and 21 more | 6 hr |
Nearby
Tornado Watches in Nebraska, 1999Tornado Watches in Kansas, 1999Every tornado watch in 1999
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.