Alert archive / Nebraska / Flash Flood Warnings in 1990
Flash Flood Warning 1, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at May 24, 1990, 4:25 AM CDT for Knox County, Nebraska. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- May 24, 1990, 4:25 AM CDT (09:25 UTC)
- Expired
- May 24, 1990, 6:30 AM CDT
- In force
- 2 hr
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Knox County, NE
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 9.4 hours before the alert went out and 193 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
- 3586 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 175 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 KOFK 240925
FFWOFK
NEC107-241130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
425 AM CDT THU MAY 24 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 630 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTY
IN THE NORTHEAST PART OF NEBRASKA
EXTREME NORTHERN KNOX
AT 0420 AM CDT NORFOLK RADAR SHOWED STRONG THUNDERSTORMS WITH
HEAVY RAIN MOVING INTO NORTHERN KNOX COUNTY ABOUT 60 MILES
NORTHWEST OF NORFOLK...NEAR THE TOWN OF SANTEE. THIS AREA HAS
ALREADY RECEIVED OVER 3 INCHES OF RAIN SO FAR TONIGHT AND SOME
STREET AND STREAM FLOODING HAS ALREADY OCCURRED. THE ADDITIONAL
RAIN WILL ONLY LEAD TO MORE FLOODING DURING THE NEXT FEW HOURS.
A FLASH FLOOD WARNING MEANS FLOODING IS OCCURRING OR IS IMMINENT.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
TO ESCAPE RISING WATER MOVE TO HIGHER GROUND.
MILLERWhat forecasters said that day
The local office's own words before this flash flood 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 23, 10:35 PM CDT, 5 hours 50 minutes before
NEZ06-012-016-017-240550- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1030 PM CDT WED MAY 23 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF SOUTHWEST NEBRASKA UNTIL 1AM CST... NO SEVERE THUNDERSTORMS HAVE OCCURRED OVER SOUTHWEST NEBRASKA YET THIS EVENING AS OF 1030 PM CDT A 5 MILE WIDE AREA OF OF THUNDERSHOWERS WERE MOVING ACROSS SOUTHERN DUNDY COUNTY NEAR BENKELMAN NEBRASKA...ABOUT 65 MILES SOUTH SOUTHWEST OFt NORTH PLATTE NEBRASKA. A 5 MILE WIDE AREA OF THUNDERSHOWERS WERE NOTED IN NORTHWEST KEITH COUNTY NEBRASKA NEAR OGALLALA...ABOUT 45 MILES WEST OF NORTH PLATTE. THE AREAS WERE MOVING SOUTHEASTERLY ABOUT 15 MPH.
Special weather statement, May 24, 12:46 AM CDT, 3 hours 39 minutes before
NEZ012-017-240640- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1245 AM CDT THU MAY 24 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR CENTRAL NEBRASKA UNTIL 7AM CDT... STRONG THUNDERSTORMS HAD DEVELOPED EARLY THIS MORNING OVER PARTS OF SOUTHWEST NEBRASKA. AT 1235 AM CDT STRONG THUNDERSTORMS PRODUCING HEAVY RAIN AND POSSIBLY HAIL WERE LOCATED FROM 25 MILES SOUTH OF NORTH PLATTE NEBRASKA TO 5 MILES WEST OF MCCOOK NEBRASKA...MOVING EAST AT 20 MILES AN HOUR. THUNDERSTORMS HAD GAINED STRENGTH DURING THE LAST HOUR. IF YOU LIVE NEAR ANY OF THESE STRONG THUNDERSTORMS...REMAIN ALERT TO ANY SUDDEN CHANGES IN THE WEATHER AND BE PREPARED TO MOVE TO A PLACE OF SAFETY IF N'ECESSARY. MEYER
Special weather statement, May 24, 1:34 AM CDT, 2 hours 51 minutes before
NEZ007-012-016-017-240740- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 135 AM CDT THU MAY 24 1990 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR CENTRAL NEBRASKA UNTIL 7AM CDT... INTENSE THUNDERSTORMS CONTINUED TO RUMBLE ACROSS SOUTHWEST AND CENTRAL NEBRASKA EARLY THIS MORNING. AT 130 AM CDT AN INTENSE THUNDERSTORM PRODUCING HEAVY RAIN AND POSSIBLY SOME HAIL...WAS 10 MILES SOUTHEAST OF BRADY NEBRASKA OR 25 MILES SOUTHEAST OF NORTH PLATTE NEBRASKA MOVING EAST AT 30 MILES AN HOUR. OTHER NUMEROUS STRONG THUNDERSTORMS WERE SCATTERED ALONG THE EAST BORDERS OF LINCOLN...FRONTIER AND RED-WILLOW COUNTIES OF SOUTHWEST NEBRASKA. ALL THUNDERSTORMS WERE MOVING EAST AT 30 MILEfS AN HOUR. IF YOU LIVE NEAR ANY OF THE THUNDERSTORMS...REMAIN ALERT TO THE WEATHER THIS MORNING. IF THREATENING WEATHER APPROACHES...BE PREPARED TO SEEK SHELTER. MEYER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 12:12 AM CDT | Severe Thunderstorm Warning | LBF | Brown | 48 min |
| May 24, 5:27 AM CDT | Flash Flood Warning | LBF | Cedar | 3 hr |
Nearby
Flash Flood Warnings in Nebraska, 1990Every flash flood 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; the sounding from the Mesonet's radiosonde archive.