Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 216, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Aug 17, 2002, 12:01 AM CDT for Valley County, Nebraska. It was in force for 59 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 17, 2002, 12:01 AM CDT (05:01 UTC)
- Expired
- Aug 17, 2002, 1:00 AM CDT
- In force
- 59 min
- Issued by
- NWS Hastings, NE
- Area
- Whole counties
County Valley County, NE
The radar
The North Platte radar (KLNX), 139 km from the middle of the area, began a volume at 05:03 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 17, 12:47 AM CDT | Hail 0.75 | North Loup, 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.
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 16, 11:20 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.0 hours before the alert went out and 144 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
- 2049 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 3249 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.0
The text
As transmitted, in the capitals the NWS used until 2016.
451 WUUS53 KGID 170501 SVRGRI NEC175-170600- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 1201 AM CDT SAT AUG 17 2002 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... VALLEY COUNTY IN CENTRAL NEBRASKA * UNTIL 100 AM CDT * AT 1156 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 6 MILES NORTHEAST OF FORT HARTSUFF STATE PARK TO 28 MILES WEST OF ARCADIA...OR FROM 45 MILES NORTHEAST OF BROKEN BOW TO 7 MILES NORTH OF BROKEN BOW...MOVING SOUTHEAST AT 35 MPH. SOME LOCATIONS IN THE PATH OF THIS LINE OF SEVERE STORMS INCLUDE ORD...ARCADIA AND NORTH LOUP. PEOPLE IN VALLEY COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER THREAT IS STRONG AND DAMAGING WINDS IN EXCESS OF 60 MPH...AND HAIL TO THE SIZE OF QUARTERS. NNNN
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 16, 9:57 PM CDT, 2 hours 4 minutes earlier.
Area forecast discussion, Aug 16, 9:57 PM CDT, 2 hours 4 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 957 PM CDT FRI AUG 16 2002 JUST A SHORT UPDATE TO THROW OUT A WIND ADVISORY AS BUFFER ZONE FOR NORTHWEST CWFA. FRONT IS DRIVING ITS WAY TOWARD THE CWFA AND SHOULD ARRIVE NEAR MIDNIGHT NORTHWEST SECTIONS. STRONG ISALLOBARIC COMPONENT WITH PRESSURE RISES WILL AID IN HIGHER WIND SPEEDS. ADVISORY CRITERIA APPEARS AT LEAST A CERTAINTY IN THOSE AREAS FOR 2 TO 5 HOURS MAYBE ACROSS AREAS FURTHER SOUTHEAST. NO MAJOR CHANGES OTHERWISE. PROVIDED SOME TIMING OF STORMS AS FRONT IS STILL EXPECT TO OVERCOME STRONG CAP...BUT POSSIBLY JUST A BIT FURTHER SOUTHEAST. .GID...WIND ADVISORY FOR THE OVERNIGHT HOURS NORTH OF A HOLDREGE TO GRAND ISLAND TO POLK LINE. MORITZ
In the hours before
Special weather statement, Aug 16, 11:42 PM CDT, 19 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-171200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HASTINGS NE 1142 PM CDT FRI AUG 16 2002 ...SPOTTER ACTIVATION WILL BE REQUIRED TONIGHT OVER SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS... AS EXPECTED...AN ERUPTION OF THUNDERSTORMS IN CENTRAL NEBRASKA WILL LEAD TO A LINE OF STRONG TO SEVERE THUNDERSTORMS ACROSS SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS OVERNIGHT. A COLD FRONT PLOWING INTO A VERY UNSTABLE AIRMASS ACROSS THE REGION WILL MOVE RAPIDLY SOUTHEAST OVERNIGHT. A LINE OF THUNDERSTORMS CAPABLE OF PRODUCING WIND GUSTS IN EXCESS OF 60 MPH...AND HAIL TO THE SIZE OF GOLF BALLS...WILL MOVE ACROSS THE AREA. BETWEEN MIDNIGHT AND 2 AM...AREAS NORTH OF INTERSTATE 80 IN SOUTH CENTRAL NEBRASKA WILL HAVE THE BEST SHOT AT SEVERE WEATHER. BETWEEN 2 AND 5 AM...THE RISK FOR SEVERE STORMS WILL SPREAD SOUTH TO THE KANSAS BORDER...AND EVENTUALLY INTO NORTH CENTRAL KANSAS BY DAWN. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR ALL OF SOUTH CENTRAL NEBRASKA UNTIL 5 AM. IT IS LIKELY SOME SPOTTER GROUPS WILL NEED TO BE DEPLOYED TONIGHT. ALL RESIDENTS OF SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS... SHOULD CONTINUE TO REMAIN VIGILANT TO THE POSSIBILITY OF SEVERE WEATHER DURING THE NIGHT. THIS FAST MOVING COLD FRONT WILL EXIT THE REGION EARLY SATURDAY MORNING...LEAVING A MUCH COOLER AND DRYER AIRMASS IN PLACE. MORITZ
The office that day
Everything else NWS Hastings, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 17, 12:25 AM CDT | Severe Thunderstorm Warning | GID | Greeley | 65 min |
| Aug 17, 12:35 AM CDT | Severe Thunderstorm Warning | GID | Howard, Sherman | 55 min |
| Aug 17, 12:42 AM CDT | Severe Thunderstorm Warning | GID | Dawson | 63 min |
| Aug 17, 1:07 AM CDT | Severe Thunderstorm Warning | GID | Nance | 53 min |
| Aug 17, 1:30 AM CDT | Severe Thunderstorm Warning | GID | Buffalo | 60 min |
| Aug 17, 1:32 AM CDT | Severe Thunderstorm Warning | GID | Gosper | 58 min |
| Aug 17, 2:16 AM CDT | Severe Thunderstorm Warning | GID | Furnas | 59 min |
| Aug 17, 2:40 AM CDT | Severe Thunderstorm Warning | GID | Harlan | 50 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.