Alert archive / Nebraska / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 12, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at May 2, 1991, 7:02 PM CDT for Red Willow County, Nebraska. It was in force for 58 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
- May 2, 1991, 7:02 PM CDT (00:02 UTC)
- Expired
- May 2, 1991, 8:00 PM CDT
- In force
- 58 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Red Willow County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 2, 7:15 PM CDT | Hail 1.75 | Red Willow, 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, 0.0 hours before the alert went out and 107 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1162 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 304 m²/s²
- 0-3 km storm-relative helicity
- 479 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
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, May 2, 4:44 PM CDT, 2 hours 18 minutes before
NEZ006-022230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 440 PM CDT THU MAY 2 1991 AT 440 PM CDT SCATTERED THUNDERSTORMS WERE BEGINNING TO BREAK OUT ACROSS SOUTHWEST NEBRASKA. ONE STRONG THUNDERSTORM WAS LOCATED JUST SOUTH OF ELSIE IN PERKINS COUNTY OR ABOUT 35 MILES WEST SOUTHWEST OF NORTH PLATTE. THIS THUNDERSTORM DEVELOPED RAPIDLY OVER THE PAST 30 MINUTES AND IT DOES APPEAR THAT IT MAY PRODUCE SMALL HAIL. OTHER THUNDERSTORMS WERE ENTERING SOUTHWEST NEBRASKA FROM NORTHEAST COLORADO ABOUT 25 MILES NORTHWEST OF BENKELMAN OR ABOUT 45 MILES NORTH NORTHWEST OF GOODLAND KANSAS. THESE THUNDERSTORMS ARE EXPECTED TO INCREASE IN INTENSITY AS THEY CONTINUE TO MOVE NORTH;EAST AT 25 MILES AN HOUR. RESIDENTS OF SOUTHWEST NEBRASKA SHOULD BE ALERT FOR POSSIBLE SEVERE WEATHER DEVELOPING LATER THIS EVENING AS THESE THUNDERSTORMS CONTINUE TO INTENSIFY. MONSON
Special weather statement, May 2, 5:30 PM CDT, 1 hour 32 minutes before
NEZ006-022330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 530 PM CDT THU MAY 2 1991 ...TORNADO WATCH FOR PARTS OF SOUTHWEST NEBRASKA UNTIL 8 PM MDT THIS EVENING... AT 525 PM CDT SCATTERED STRONG THUNDERSTORMS WERE CONTINUING TO DEVELOP AND INTENSIFY ACROSS SOUTHWEST NEBRASKA. THE STRONGEST THUNDERSTORMS WERE LOCATED ACROSS KEITH AND PERKINS COUNTY OF SOUTHWEST NEBRASKA. ONE STRONG THUNDERSTORM WAS ABOUT 15 MILES SOUTH OF PAXTON OR ABOUT 35 MILES SOUTHWEST OF NORTH PLATTE...ANOTHER JUST EAST OF OGALLALA OR ABOUT 45 MILES WEST OF NORTH PLATTE..ANOTHER ABOUT 15 MILES SOUTHWEST OF OGALLALA OR ABOUT 55 MILES WEST SOUTHWEST OF NORTH PLATTE AND FINALLY ONE STRONG THUNDERSTORM ABOUT 10 MILES WEST OF OGALLALA OR ABOUT 55 MILES WEST OF NORTH PLATTE. ALL OF THESE STRONG THUNDERSTORMS DO APPEAR THAT THEY MAY PRODUCE AT LEAST SMALL HAIL ALONG WITH VERY HEAVY RAIN. THESE THUNDERSTORMS ARE MOVING TO THE NORTHEAST ATl 25 MILES AN HOUR. OTHER THUNDERSTORMS ARE LIKELY TO DEVELOP AND INTENSIFY AS THE EVENING PROGRESSES. RESIDENTS OF SOUTHWEST NEBRASKA SHOULD BE PREPARED FOR SEVERE WEATHER THIS EVENING. MONSON
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 7:15 PM CDT | Tornado Warning | LBF | Perkins | |
| May 2, 7:28 PM CDT | Tornado Warning | LBF | Hayes | 32 min |
| May 2, 7:32 PM CDT | Severe Thunderstorm Warning | LBF | Keith | 28 min |
| May 2, 7:48 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Perkins | 57 min |
| May 2, 9:05 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 25 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1991Every severe thunderstorm warning in 1991
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.