Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 8, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Apr 18, 2002, 12:33 AM CDT for Thayer County, Nebraska. It was in force for 57 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
- Apr 18, 2002, 12:33 AM CDT (05:33 UTC)
- Expired
- Apr 18, 2002, 1:30 AM CDT
- In force
- 57 min
- Issued by
- NWS Hastings, NE
- Area
- Counties, with a storm outline in the text
County Thayer County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 18, 1:10 AM CDT | Hail 1 | Gilead, NE | One inch size hail covered the ground in Gilead. |
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
Omaha, NE (KOAX), launched 00:00Z, 5.6 hours before the alert went out and 166 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
- 72 J/kg
- Mixed-layer CIN
- -91 J/kg
- Mixed-layer LCL
- 2122 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 113 m²/s²
- 0-3 km storm-relative helicity
- 361 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KGID 180533 SVRGRI NEC169-180630- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 1232 AM CDT THU APR 18 2002 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... THAYER COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 130 AM CDT * AT 1228 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES SOUTH OF DESHLER...OR ABOUT 25 MILES NORTH OF CONCORDIA...MOVING NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... CHESTER AT 1240 AM CDT GILEAD AT 100 AM CDT ALEXANDRIA AT 110 AM CDT PEOPLE IN THAYER COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. DAMAGING THUNDERSTORM WINDS IN EXCESS OF 60 MPH AND LARGE HAIL THE SIZE OF DIMES AND QUARTERS IS LIKELY. LAT...LON 4002 9781 4001 9739 4033 9738 4035 9758 NNNN 09
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 Apr 17, 3:13 PM CDT, 9 hours 20 minutes earlier.
Area forecast discussion, Apr 17, 3:13 PM CDT, 9 hours 20 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 313 PM CDT WED APR 17 2002 THUNDERSTORM CHANCES AND TEMPERATURES MAIN CHALLENGES. LATEST SURFACE ANALYSIS SHOWS WARM FRONT NEAR THE NEBR/KANSAS BORDER. A DRY LINE EXTENDS ACROSS WESTERN KS CWFA COUNTIES. LOW LEVEL MOISTURE WILL ADVECT ACROSS EASTERN CWFA THIS EVENING BEFORE DRIER AIR PUNCHES THROUGH. WATER VAPOR IMAGERY SHOWS A JET MAX ADVANCING NE OUT OF NEW MEXICO WHICH LOOKS TO HAVE SOME MID LEVEL MOISTURE ASSOCIATED WITH IT. WITH GOOD HEATING TODAY AFTER A CHILLY START...ENOUGH INSTABILITY TO PROVIDE ALL INGREDIENTS FOR THUNDERSTORM DEVELOPMENT THIS EVENING ALONG THE FRONT. BIGGEST PROBLEM WILL BE OVERALL COLUMN MOISTURE WHICH WILL SUPPORT ONLY ISOLATED TO SCATTERED COVERAGE AT BEST. WILL PUT IN SMALL POPS ACROSS THE EAST BUT BEST CHANCES WILL BE LATER TONIGHT FARTHER NORTHEAST...OUT OF CWFA...WHEN/WHERE LOW LEVEL JET/THETA E ADVECTION REALLY FOCUSES MOISTURE. ETA 310 K ISENTROPIC SURFACE IS QUITE IS STEEP LATER TONIGHT TO THE NORTHEAST. THOSE SOUTH WINDS WILL INCREASE TONIGHT DUE TO DEEPENING SURFACE LOW OVER THE DAKOTAS. EXPECT WINDY CONDITIONS OVERNIGHT WHICH WILL KEEP TEMPERATURES AOA GUIDANCE...QUITE A BIT ABOVE GOING FORECAST. AS MENTIONED IN NATL DISCN...FRONTAL MOVEMENT THU HAS TRENDED SLOWER AND THERE MAY BE ENOUGH RESIDUAL MOISTURE ALONG WITH DAYTIME HEATING TO KICK OFF A TSTM THU EVENING IN THE SOUTHERN CWFA...SO HAVE KEPT SMALL POPS THERE. COOL HIGH PRESSURE THEN BUILDS IN FOR THE WEEKEND...BUT NOT BEFORE MORE WIND THU NGT. HAVE DELAYED RAIN CHANCES HOWEVER...UNTIL EARLY NEXT WEEK WHEN OVER RUNNING OF THE HIGH BEGINS WITH NEXT RESURGENCE OF A WARMER AIRMASS. .GID...NONE. DROZD
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.