Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 233, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Aug 23, 2002, 6:25 PM CDT for Valley County, Nebraska. It was in force for 65 min. 1 report 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 23, 2002, 6:25 PM CDT (23:25 UTC)
- Expired
- Aug 23, 2002, 7:30 PM CDT
- In force
- 65 min
- Issued by
- NWS Hastings, NE
- Area
- Counties, with a storm outline in the text
County Valley County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 23, 6:33 PM CDT | Hail 1 | Elyria, 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 nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.4 hours before the alert went out and 142 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
- 2160 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
524 WUUS53 KGID 232325 SVRGRI NEC175-240030- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 624 PM CDT FRI AUG 23 2002 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... VALLEY COUNTY IN CENTRAL NEBRASKA * UNTIL 730 PM CDT * AT 620 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES EAST OF ELYRIA...OR ABOUT 42 MILES NORTHEAST OF BROKEN BOW...MOVING SOUTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... ORD AT 635 PM CDT NORTH LOUP AT 720 PM CDT PEOPLE IN VALLEY 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 4172 9919 4141 9918 4140 9877 4172 9876 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 23, 2:45 PM CDT, 3 hours 40 minutes earlier.
Area forecast discussion, Aug 23, 2:45 PM CDT, 3 hours 40 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 245 PM CDT FRI AUG 23 2002 ...FORECAST CONCERN CONTINUES TO BE RAIN CHANCES TONIGHT AND SATURDAY... SURFACE ANALYSIS HAD FRONT FROM JUST SOUTH OF MCI SOUTHWARD ALONG SOUTHERN KANSAS. DEWPOINTS NOT QUITE AS HIGH AS YESTERDAY ACROSS THE CWA BUT STILL AROUND 70 IN THE EASTERN PART. VISIBLE SATELLITE SHOWING OLD OUTFLOW BOUNDARY IN EASTERN PART OF CWA STRETCHING BACK TO THE NW. IN THE UPPER LEVELS...SHORTWAVE THAT TRIGGERED LAST NIGHTS CONVECTION HAS MOVED EAST. UPPER LOW STILL SITTING AND SPINNING OVER ERN OREGON WHILE WATER VAPOR IMAGERY HAS PACIFIC MOISTURE CONNECTION STREAMING INTO NEB/KS ALONG A FAIRLY IMPRESSIVE JET WITH 90 KTS AT 250 MB EARLIER. MAIN ACTION SHOULD GET UNDERWAY LATER TONIGHT WITH APPROACHING SHORTWAVE NOW CROSSING NEVADA. BOTH ETA AND AVN PUT US UNDER LEFT EXIT REGION OF JET INTO SATURDAY. DIVERGENCE FIELDS BEAR THIS OUT AS DO OMEGA FIELDS WITH 6 TO 10 MIRCOBARS PER SECOND OF LIFT OVER GRI BETWEEN 6 AND 18Z. MOST OF THIS DUE TO UPPER FORCING AS LOW LEVEL WARM ADVECTION MINIMAL. LOW LEVEL JET OF 35 KTS EXPECTED OVER WRN KANSAS TO HELP SUSTAIN ANY MCS THAT ROLLS OFF THE HIGH PLAINS. CORFIDI VECTORS AND 700-300 THICKNESSES WOULD POINT TO AN ESE MOVEMENT AT A DECENT RATE. THETA E RIDGE LOOKS TO REMAIN SOUTHWEST OF CWA. IDEA OF MCS ROLLING ACROSS THE SW PART OF THE FORECAST AREA LATER TONIGHT STILL SEEMS TO BE ON TRACK. HOWEVER PLAN TO HAVE POPS ACROSS ALL OF CWA WITH NUMBERS INCREASING NE TO SW. WHILE HEAVY RAIN A POSSIBILITY...WONT MENTION IN ZONES DUE TO SPEED OF SYSTEM AND UNCERTAINTY OF PATH. NEXT QUESTION IS HOW LONG TO LINGER PRECIP ON SATURDAY. GIVEN EXPECTED MOVEMENT OF MCS WILL GRADUALLY CLEAR THINGS OUT NW TO SE AS DAYS WEARS ON. REST OF WEEKEND SHOULD BE DRY. TEMPS MAY RECOVER INTO THE MID TO UPPER 80S WITH PLENTY OF AUGUST SUNSHINE. FOR LATER ON...WILL GO AHEAD AND INTRODUCE CHANCE OF RAIN TUES NIGHT INTO WED AS CANADIAN WAVE DROPS A COLD FRONT INTO CENTRAL PLAINS. .GID...NONE. EWALD
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 3:41 AM CDT | Severe Thunderstorm Warning | GID | Adams, Clay, Nuckolls, Thayer | 64 min |
| Aug 23, 4:17 AM CDT | Severe Thunderstorm Warning | GID | Fillmore | 43 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.