Alert archive / Nebraska / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 13, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Mar 30, 1998, 11:12 AM CST for Nemaha County, Nebraska. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Mar 30, 1998, 11:12 AM CST (17:12 UTC)
- Expired
- Mar 30, 1998, 11:45 AM CST
- In force
- 33 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Nemaha County, NE
The radar
The Omaha radar (KOAX), 112 km from the middle of the area, began a volume at 17:12 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.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 5.2 hours before the alert went out and 112 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
- 4 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 84 kt
- 0-1 km storm-relative helicity
- 131 m²/s²
- 0-3 km storm-relative helicity
- 257 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KOMA 301712 RRA SVROMA NEC127-301745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 1112 AM CST MON MAR 30 1998 * SEVERE THUNDERSTORM WARNING FOR NEMAHA COUNTY IN SOUTHEASTERN NEBRASKA * UNTIL 1145 AM CST * SOME LOCATIONS AFFECTED HOWE NOW AUBURN BY AROUND 1120 AM CST NEMAHA BY AROUND 1120 AM CST BROWNVILLE BY AROUND 1125 AM CST PERU BY AROUND 1125 AM CST * AT 1110 AM CST...A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER RADAR 14 MILES NORTHWEST OF FALLS CITY OR 7 MILES SOUTH OF HOWE MOVING NORTH NORTHEAST AT 50 MPH.F PEOPLE IN THE WARNED AREA SHOULD GET INTO A REINFORCED SHELTER AND PREPARE FOR DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND DANGEROUS LIGHTNING. BYRD
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, Mar 30, 5:20 AM CST, 5 hours 52 minutes before
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-311200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 520 AM CST MON MAR 30 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER GROUPS IN SOUTHEAST NEBRASKA AND SOUTHWEST IOWA MAY NEED TO BE ACTIVATED THIS AFTERNOON AND TONIGHT. DISCUSSION... THERE IS A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS ACROSS SOUTHEAST NEBRASKA AND SOUTHWEST IOWA THIS AFTERNOON AND TONIGHT MAINLY SOUTH OF A LINE FROM RED OAK TO BEATRICE. A COLD FRONT MOVING SOUTH ACROSS SOUTHWEST IOWA AND CENTRAL KANSAS WILL STALL TODAY AS LOW PRESSURE FORMS IN THE OKLAKOMA PANHANDLE. AS THE LOW CENTER TRACKS NORTHEAST TOWARD WESTERN IOWA OVERNIGHT THE FRONT WILL MOVE NORTH AS A WARM FRONT. MOIST AND UNSTABLE AIR LIFTING OVER THE FRONT WILL RESULT IN THUNDERSTORM FORMATION. A FEW OF THESE STORMS COULD PRODUCE LARGE HAIL ALONG WITH HEAVY RAINFALL. GW
Special weather statement, Mar 30, 5:20 AM CST, 5 hours 52 minutes before
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034- 042>045-050>053-065>068-078-088>093-311200- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 520 AM CST MON MAR 30 1998 ...SEVERE WEATHER OUTLOOK FOR EASTERN NEBRASKA AND SOUTHWEST IOWA... SPOTTER ACTION... STORM SPOTTER GROUPS IN SOUTHEAST NEBRASKA AND SOUTHWEST IOWA MAY NEED TO BE ACTIVATED THIS AFTERNOON AND TONIGHT. DISCUSSION... THERE IS A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS ACROSS SOUTHEAST NEBRASKA AND SOUTHWEST IOWA THIS AFTERNOON AND TONIGHT MAINLY SOUTH OF A LINE FROM RED OAK TO BEATRICE. A COLD FRONT MOVING SOUTH ACROSS SOUTHWEST IOWA AND CENTRAL KANSAS WILL STALL TODAY AS LOW PRESSURE FORMS IN THE OKLAKOMA PANHANDLE. AS THE LOW CENTER TRACKS NORTHEAST TOWARD WESTERN IOWA OVERNIGHT THE FRONT WILL MOVE NORTH AS A WARM FRONT. MOIST AND UNSTABLE AIR LIFTING OVER THE FRONT WILL RESULT IN THUNDERSTORM FORMATION. A FEW OF THESE STORMS COULD PRODUCE LARGE HAIL ALONG WITH HEAVY RAINFALL. GW
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 7:37 PM CST | Severe Thunderstorm Warning | OAX | Burt | 48 min |
| Mar 29, 10:13 PM CST | Severe Thunderstorm Warning | OAX | Burt, Dodge, Washington | 62 min |
| Mar 29, 10:13 PM CST | Severe Thunderstorm Warning | OAX | Saunders | 62 min |
| Mar 29, 11:21 PM CST | Severe Thunderstorm Warning | OAX | Nemaha, Richardson | 34 min |
| Mar 30, 12:02 AM CST | Severe Thunderstorm Warning | OAX | Gage, Jefferson | 48 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1998Every severe thunderstorm warning in 1998
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.