Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 230, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Aug 22, 2002, 6:25 PM CDT for Gosper County, Nebraska. It was in force for 65 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 22, 2002, 6:25 PM CDT (23:25 UTC)
- Expired
- Aug 22, 2002, 7:30 PM CDT
- In force
- 65 min
- Issued by
- NWS Hastings, NE
- Area
- Counties, with a storm outline in the text
County Gosper County, NE
The radar
The Grand Island radar (KUEX), 124 km from the middle of the area, began a volume at 23:27 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 22, 6:43 PM CDT | Hail 0.75 | Elwood, NE | |
| Aug 22, 7:08 PM CDT | Hail 0.75 | Elwood, NE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 22, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.4 hours before the alert went out and 89 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
- 833 J/kg
- Mixed-layer CIN
- -217 J/kg
- Mixed-layer LCL
- 1034 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- -30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
304 WUUS53 KGID 222325 SVRGRI NEC073-230030- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 625 PM CDT THU AUG 22 2002 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... GOSPER COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 730 PM CDT * AT 621 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES WEST OF ELWOOD...OR ABOUT 19 MILES SOUTHWEST OF LEXINGTON...MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ELWOOD AT 640 PM CDT JOHNSON LAKE AT 650 PM CDT SMITHFIELD AT 700 PM CDT PEOPLE IN GOSPER COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER THREAT IS LARGE HAIL THE SIZE OF DIMES. LAT...LON 4069 9996 4035 10013 4034 9965 4067 9966 NNNN GURNEY
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.
NWS Hastings, NE wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 22, 2:25 PM CDT, 4 hours earlier.
Area forecast discussion, Aug 22, 2:25 PM CDT, 4 hours before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 225 PM CDT THU AUG 22 2002 ...FORECAST CONCERN TO BE CHANCE OF RAIN TONIGHT AND AGAIN FRIDAY NIGHT/SATURDAY... NO NEED TO BE TOO VERBOSE WITH THIS DISCUSSION IN CASE SEVERE WX POPS LATER THIS AFTERNOON. 18Z SURFACE ANALYSIS HAS FRONTAL BOUNDARY IN NORTHERN KANSAS WITH INVERTED TROUGH EXTENDING NORTHEAST ACROSS CWA AND TOWARDS OFK. A LINE OF SHOWERS EXTEND ALONG THIS FEATURE BUT RAIN AMOUNTS MINIMAL AT THIS TIME. GOOD LOW LEVEL MOISTURE POOLING WELL NORTH OF FRONT WITH 70+ DEW POINTS NORTH OF I-80. TEMPS NORTH OF FRONT IN LOWER 80S WITH MID 90S TO THE SOUTH. FRONT HAS SLOWED PAST FEW HOURS WITH NO BIG PRESSURE RISES BEHIND IT AS WAS SEEN ON 15Z OBS. UPPER AIR AND SATELLITE DATA SHOWED ANOTHER WAVE APPROACHING SW NEB/NW KS. WILL HAVE TO MONITOR PROGRESS ON PROFILER NET. RWD PROFILER DID SHOW BOUNDARY DEPTH ABOUT 3 KM AGL A FEW HOURS AGO AND NOT THAT IMPRESSIVE OF A SHEAR PROFILE. FBY PROFILER SHEAR A LITTLE MORE RESPECTABLE. 850 MB ANALYSIS AND PROFILERS HAD BEST LL JET AND MOISTURE EAST AND SOUTHEAST OF CWA ONCE AGAIN. WITH BOUNDARY SITTING IN SOUTHERN PART OF CWA...ADEQUATE LOW LEVEL MOISTURE AND APPROACHING WAVE...WILL NEED POPS ALL AREAS TONIGHT. HEAVY RAIN THREAT LOOKS TO BE WELL SOUTHEAST OF CWA WHERE LOW LEVEL JET...850 MOISTURE AND TROPICAL CONNECTION SET UP. OUR MAIN THREAT WOULD BE HAIL AND WINDS ALTHOUGH FREEZING LEVEL QUITE HIGH. FRIDAY SHOULD BE QUIET WITH HIGH PRESSURE BUILDING. NEXT QUESTION IS FRI NIGHT/SATURDAY AS BOTH AVN AND ETA WANT TO BRING A SHORT WAVE THROUGH RIDGE. BOTH HAVE OMEGA VALUES EXCEEDING 12 UBARS/SEC... AND BOTH WANT TO BRING MCS ACROSS DURING DAY ON SATURDAY WHICH IS NOT IDEAL DIURNALLY. PLAN TO INTRODUCE 30 POPS FRI NIGHT INTO SATURDAY AND SEE HOW MODELS HANDLE NEXT FEW RUNS. CANNOT JUSTIFY GOING ANY HIGHER CONSIDERING PAST FEW MONTHS OF DRY WEATHER. AFTER THAT REST OF WEEKEND SHOULD BE DRY WITH REX BLOCK SETTING UP OVER GREAT LAKES AND MISSISSIPPI VALLEY. NEXT SYSTEM DUE TO SWING ACROSS THE NORTH TUES BUT WILL LEAVE FORECAST DRY UNTIL CONSISTENCY BETWEEN MODELS AND TIMING CAN BE PINNED DOWN. .GID...NONE. EWALD
In the hours before
Local storm report, Aug 22, 6:20 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
620 PM CDT THU AUG 22 2002
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0615 PM 4 E FARNAM NE .75 INCH HAIL
08/22/02 DAWSON REPORTED BY PUBLIC.The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 1:38 AM CDT | Severe Thunderstorm Warning | GID | Phelps | 52 min |
| Aug 22, 1:49 AM CDT | Severe Thunderstorm Warning | GID | Kearney | 41 min |
| Aug 22, 5:52 PM CDT | Severe Thunderstorm Warning | GID | Dawson | 53 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2002Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.