Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 20, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Jun 15, 1990, 9:48 PM CDT for Sherman County, Nebraska. It was in force for 42 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 15, 1990, 9:48 PM CDT (02:48 UTC)
- Expired
- Jun 15, 1990, 10:30 PM CDT
- In force
- 42 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Sherman County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 15, 10:00 PM CDT | Tornado F0 | Sherman, NE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 2.8 hours before the alert went out and 136 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
- 2620 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 861 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 4.9
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 15, 6:47 PM CDT, 3 hours 1 minute before
NEZ008-013>015-017>019-160045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE GRAND ISLAND NE 645 PM CDT FRI JUN 15 1990 ...FLASH FLOOD WATCH FOR THE EASTERN 1/3RD OF NEBRASKA TONIGHT... ...TORNADO WATCH UNTIL 11 PM CDT FOR PARTS OF CENTRAL NEBRASKA WEST OF GRAND ISLAND... AT 635 PM CDT...GRAND ISLAND RADAR SHOWED THUNDERSTORMS IN EXTREME SOUTHWEST NEBRASKA AND IN PARTS OF CENTRAL AND NORTH CENTRAL KANSAS. SOME OF THESE STORMS WERE VERY STRONG AND WERE PRODUCING VERY HEAVY RAIN. IN NEBRASKA...THE THUNDERSTORMS WERE WEST OF A LINE FROM 20 MILES WEST OF NORTH PLATTE TO 10 MILES WEST OF MCCOOK. IN KANSAS THE STORMS WERE IN A 50 MILE WIDE AREA WEST OF A LINE FROM 40 MILES EAST OF HILL CITY...TO NEAR DODGE CITY. ALL OF THE STORMS WERE MOVING NORTHEAST AT 30 MILES AN HOUR. SULLIVAN
Special weather statement, Jun 15, 7:53 PM CDT, 1 hour 55 minutes before
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
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 8:11 PM CDT | Severe Thunderstorm Warning | GID | Furnas, Gosper | 34 min |
| Jun 15, 9:08 PM CDT | Tornado Warning | GID | Gosper | 22 min |
| Jun 15, 10:08 PM CDT | Flash Flood Warning | GID | Clay, Fillmore, Hamilton, York | 77 min |
| Jun 15, 10:08 PM CDT | Flash Flood Warning | GID | Thayer | 77 min |
| Jun 15, 10:55 PM CDT | Flash Flood Warning | GID | Greeley, Howard, Sherman | 6 hr |
| Jun 15, 10:55 PM CDT | Flash Flood Warning | GID | Valley | 6 hr |
| Jun 16, 4:20 PM CDT | Tornado Warning | GID | Furnas, Harlan | 55 min |
| Jun 16, 5:12 PM CDT | Tornado Warning | GID | Franklin, Harlan | 63 min |
| Jun 16, 5:21 PM CDT | Tornado Warning | GID | Greeley, Howard, Sherman | 19 min |
| Jun 16, 6:18 PM CDT | Tornado Warning | GID | Franklin, Harlan | 57 min |
| Jun 16, 6:46 PM CDT | Tornado Warning | GID | Buffalo | 29 min |
| Jun 16, 6:51 PM CDT | Tornado Warning | GID | Webster | 69 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.