Alert archive / Nebraska / Flash Flood Warnings in 2002
Flash Flood Warning 6, NWS North Platte, NE
NWS North Platte, NE issued this flash flood warning at Aug 26, 2002, 4:55 PM MDT for Grant County, Nebraska. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 26, 2002, 4:55 PM MDT (22:55 UTC)
- Expired
- Aug 26, 2002, 7:00 PM MDT
- In force
- 2 hr
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Grant County, NE
The radar
The North Platte radar (KLNX), 91 km from the middle of the area, began a volume at 22:57 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
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 10.9 hours before the alert went out and 128 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
- 1929 J/kg
- Mixed-layer CIN
- -185 J/kg
- Mixed-layer LCL
- 1191 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLBF 262255 FFWLBF NEC075-270100- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 455 PM MDT MON AUG 26 2002 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * FLASH FLOOD WARNING FOR... GRANT COUNTY IN WEST CENTRAL NEBRASKA... * UNTIL 700 PM MDT... * AT 447 PM MDT...COUNTY SHERIFF REPORTED MINOR FLOODING WITH ONE FOOT OF WATER OVER HIGHWAY 2 JUST EAST OF HYANNIS. THE STORMS THAT PRODUCED THE VERY HEAVY RAIN AND HAIL COVERING THE GROUND WILL CONTINUE TO MOVE SOUTH OF THE WARNING AREA THROUGH 7 PM MDT. * LOCATIONS IN THE WARNING INCLUDE HYANNIS...WHITMAN. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN NORTH PLATTE. LAT...LON 4207 10144 4208 10200 4175 10205 4177 10144
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 3:26 AM MDT | Severe Thunderstorm Warning | LBF | Keya Paha | 64 min |
| Aug 26, 3:49 AM MDT | Severe Thunderstorm Warning | LBF | Rock | 56 min |
| Aug 26, 4:14 AM MDT | Severe Thunderstorm Warning | LBF | Rock | 31 min |
| Aug 26, 4:45 AM MDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 60 min |
| Aug 26, 5:07 AM MDT | Severe Thunderstorm Warning | LBF | Holt | 53 min |
| Aug 26, 6:54 AM MDT | Severe Thunderstorm Warning | LBF | Cherry | 51 min |
| Aug 26, 7:22 AM MDT | Severe Thunderstorm Warning | LBF | Blaine, Brown | 53 min |
| Aug 26, 8:05 AM MDT | Severe Thunderstorm Warning | LBF | Custer, Loup | 55 min |
| Aug 26, 8:12 AM MDT | Severe Thunderstorm Warning | LBF | Rock | 48 min |
| Aug 26, 8:24 AM MDT | Severe Thunderstorm Warning | LBF | Blaine | 36 min |
| Aug 26, 12:17 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 58 min |
| Aug 26, 12:36 PM MDT | Tornado Warning | LBF | Cherry | 39 min |
| Aug 26, 12:54 PM MDT | Severe Thunderstorm Warning | LBF | Chase | 66 min |
| Aug 26, 1:17 PM MDT | Tornado Warning | LBF | Cherry | 58 min |
| Aug 26, 2:16 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 59 min |
| Aug 26, 2:29 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 61 min |
| Aug 26, 3:03 PM MDT | Tornado Warning | LBF | Sheridan | 57 min |
| Aug 26, 3:03 PM MDT | Tornado Warning | LBF | Sheridan | 57 min |
| Aug 26, 3:15 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 60 min |
| Aug 26, 3:49 PM MDT | Severe Thunderstorm Warning | LBF | Grant, Hooker, Thomas | 56 min |
| Aug 26, 4:03 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 57 min |
| Aug 26, 4:29 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 61 min |
| Aug 26, 4:47 PM MDT | Severe Thunderstorm Warning | LBF | Grant, Hooker, Thomas | 58 min |
| Aug 26, 5:15 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 60 min |
| Aug 26, 5:31 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 44 min |
| Aug 26, 5:42 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, McPherson | 63 min |
Nearby
Flash Flood Warnings in Nebraska, 2002Every flash flood warning in 2002
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.