Alert archive / Nebraska / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 151, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 29, 1993, 7:30 PM CDT for Boone County, Nebraska. It was in force for 45 min.
The area
The counties it named.
The facts
- Issued
- Aug 29, 1993, 7:30 PM CDT (00:30 UTC)
- Expired
- Aug 29, 1993, 8:15 PM CDT
- In force
- 45 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, 0.5 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
- 4054 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 760 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 263 m²/s²
- Significant tornado parameter
- 4.0
- Supercell composite
- 22.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOFK 300034 RRA SVROFK NEC011-027-119-139-300115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORFOLK NE 730 PM CDT SUN AUG 29 1993 THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST NEBRASKA ...BOONE COUNTY...CEDAR COUNTY...MADISON COUNTY...PIERCE COUNTY AT 725 PM CDT RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS THAT STRETCHED FROM 50 MILE SOUTHWEST OF NORFOLK...NEAR ALBION...TO 15 MILES WEST OF NORFOLK...TO 40 MILES NORTHEAST OF NORFOLK. THESE STORMS WERE MOVING TO THE NORTH NORTHEAST AT ONLY AROUND 10 MPH. THESE STORMS WERE ALSO PRODUCING TORRENTIAL DOWNPOURS AND FLASH FLOODING MAY BECOME A PROBLEM. DO NOT DRIVE THROUGH WATER ACROSS ROADWAYS. PEOPLE IN THE PATH OF THIS STORM SHOULD TAKE SHELTER IMMEDIATELY. PREPARE FOR DAMAGING WINDS...LARGE HAIL...DEADLY LIGHTNING AND VhERY HEAVY RAIN THAT CAN QUICKLY FLOOD A LOW LYING AREA. REMEMBER... SEVERE THUNDERSTORMS CAN PRODUCE A TORNADO WITH LITTLE OR NO WARNING. BOWMAN
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, Aug 29, 7:15 PM CDT, 15 minutes before
NEZ016-017-300100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 715 PM CDT SUN AUG 29 1993 ...STRONG THUNDERSTORMS WILL BE MOVING INTO SOUTHERN RED WILLOW COUNTY BY 725 PM CDT... AT 710 PM CDT RADAR REVEALED AN AREA OF SCATTERED THUNDERSTORMS ACROSS NORTH CENTRAL KANSAS WHICH WERE POISED TO ENTER SOUTHERN RED WILLOW COUNTY. THESE THUNDERSTORMS WERE LOCATED APPROXIMATELY 65 TO 75 MILES SOUTH OF NORTH PLATTE...OR NEAR THE KANSAS BORDER. OTHER THUNDERSTORMS WERE OVER SOUTHERN AND EASTERN SECTIONS OF FRONTIER COUNTY...OR FROM 40 MILES SOUTHEAST TO 45 MILES SOUTH OF NORTH PLATTE. PERSONS NEAR THE TOWN OF DANBURY...WHICH IS LOCATED ABOUT 66 MILES SOUTH SOUTHEAST OF NORTH PLATTE...SHOULD PREPARE FOR THREATENING WEATHER NOW. > MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTH NORTHEAST AROUND 30 MILES AN HOUR. THE THUNDERSTORMS COULD PRODUCE LARGE HAIL... DAMAGING WINDS...DEADLY BOLTS OF LIGHTNING AND HEAVY R&AINS. SC
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:30 PM CDT | Severe Thunderstorm Warning | LBF | Cedar, Madison, Pierce | 45 min |
| Aug 29, 8:06 PM CDT | Flash Flood Warning | LBF | Boone | 3 hr |
| Aug 29, 10:00 PM CDT | Flash Flood Warning | LBF | Boone, Madison, Pierce, Wayne | 4 hr |
| Aug 29, 10:00 PM CDT | Flash Flood Warning | LBF | Cedar | 4 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.