Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 6, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at May 7, 1993, 7:20 PM CDT for Boone County, Nebraska. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- May 7, 1993, 7:20 PM CDT (00:20 UTC)
- Expired
- May 7, 1993, 8:00 PM CDT
- In force
- 40 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Boone County, NE
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 0.3 hours before the alert went out and 148 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
- 1984 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 835 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 206 m²/s²
- 0-3 km storm-relative helicity
- 280 m²/s²
- Significant tornado parameter
- 2.1
- Supercell composite
- 12.5
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 7, 2:14 PM CDT, 5 hours 6 minutes before
NEZ006-007-012-016-017-072015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 215 PM CDT FRI MAY 7 1993 ...SCATTERED THUNDERSTORMS DEVELOPING IN THE BROKEN BOW AREA... AT 210 PM CDT SCATTERED THUNDERSTORMS WERE DEVELOPING ACROSS CUSTER COUNTY OF NORTH CENTRAL NEBRASKA. ONE OF THESE THUNDERSTORMS WAS ABOUT 5 MILES NORTHWEST OF BROKEN BOW OR ABOUT 50 MILES NORTHEAST OF NORTH PLATTE WHILE ANOTHER WAS IN THE SARGENT AREA ABOUT 60 MILES NORTHWEST OF GRAND ISLAND. THESE NEWLY DEVELOPED THUNDERSTORMS ARE LIKELY TO PRODUCE MODERATE TO BRIEF HEAVY RAIN WITH SMALL HAIL POSSIBLE AS THEY MOVE NORTHEAST THIS AFTERNOON. MORE THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON ACROSS THE REGION WITH THE BEST CHANCE FOR THUNDERSTORMS ACROSS THE EASTERN PARTS OF THE REGION ESPECIALLY IN CUSTER COUNTY AND FRONTIER COUNTY. LATER THIS AFTERNOON THERE IS THE CHANCE THAT SOME OF THESE THUNDERSTORMS MAY BECOME SEVERE. RESIDENTS ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA SHOULD BE AWARE OF RAPIDLY CHANGING WEATHER CONDITIONS ALONG WITH APPROACHING THUNDERSTORMS WHICH COULD PRODUCE SEVERE WEATHER. MONSON
Special weather statement, May 7, 5:14 PM CDT, 2 hours 6 minutes before
NEZ006-007-012-016-017-072315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 515 PM CDT FRI MAY 7 1993 ...LONE THUNDERSTORM DEVELOPS OVER SOUTHWEST NEBRASKA... AT 510 PM CDT A LONE THUNDERSTORM WAS LOCATED JUST SOUTH OF BENKELMAN OR ABOUT 40 MILES NORTH OF GOODLAND KANSAS. THIS THUNDERSTORM WILL MOVE NORTHEAST AND SHOULD JUST CATCH THE COMMUNITY OF BENKELMAN BEFORE MOVING OUT ONTO OPEN COUNTRY. BRIEF HEAVY RAIN IS LIKELY WITH THIS THUNDERSTORM AS IT MOVES NORTHEAST. OTHER THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS EVENING ACROSS SOUTHWEST AND WEST CENTRAL NEBRASKA WITH THE THUNDERSTORMS MOVING NORTHEAST INTO A MORE MOIST UNSTABLE AIRMASS. RESIDENTS ACROSS SOUTH`WEST AND WEST CENTRAL NEBRASKA SHOULD BE AWARE OF RAPIDLY CHANGING WEATHER CONDITIONS WITH APPROACHING THUNDERSTORMS. MONSON
Special weather statement, May 7, 6:46 PM CDT, 34 minutes before
NEZ006-007-012-016-017-080015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 545 PM MDT FRI MAY 7 1993 ...LONE THUNDERSTORM CONTINUES MOVING NORTH ACROSS SOUTHWEST NEBRASKA... AT 535 PM MDT A STRONG THUNDERSTORM WAS LOCATED ABOUT 10 MILES SOUTHEAST OF IMPERIAL OR ABOUT 60 MILES SOUTHWEST OF NORTH PLATTE. THIS THUNDERSTORM HAS INTENSIFIED A LITTLE AND IS LIKELY PRODUCING BRIEF HEAVY RAIN. THIS THUNDERSTORM WILL MOVE JUST TO THE EAST OF IMPERIAL. OTHER THUNDERSTORMS WHICH HAVE BEEN DEVELOPING ACROSS NORTHEAST COLORADO WILL BE MOVING INTO SOUTHWEST NEBRASKA BY 615 PM MDT. THESE THUNDERSTORMS HAVE BEEN MOVING NORTH AT 25 MILES AN HOUR. RESIDENTS ACROSS SOUTHWESTV AND WEST CENTRAL NEBRASKA SHOULD BE AWARE OF RAPIDLY CHANGING WEATHER CONDITIONS WITH THESE APPROACHING THUNDERSTORMS. MONSON
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 7:26 PM CDT | Severe Thunderstorm Warning | LBF | Antelope, Pierce | 49 min |
| May 7, 9:21 PM CDT | Severe Thunderstorm Warning | LBF | Colfax, Cuming | 39 min |
| May 7, 10:47 PM CDT | Flash Flood Warning | LBF | Colfax, Stanton | 3 hr |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1993Every severe thunderstorm warning in 1993
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.