Alert archive / Nebraska / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 239, NWS Hastings, NE
NWS Hastings, NE issued this severe thunderstorm warning at Jul 21, 2003, 9:03 PM CDT for Dawson County, Nebraska. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2003, 9:03 PM CDT (02:03 UTC)
- Expired
- Jul 21, 2003, 9:30 PM CDT
- In force
- 27 min
- Issued by
- NWS Hastings, NE
- Area
- Counties, with a storm outline in the text
County Dawson County, NE
The radar
The North Platte radar (KLNX), 139 km from the middle of the area, began a volume at 02:03 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.
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 |
|---|---|---|---|
| Jul 21, 4:50 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 2.1 hours before the alert went out and 289 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
- 108 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 3151 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KGID 220203 SVRGID NEC047-220230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE HASTINGS NE 902 PM CDT MON JUL 21 2003 THE NATIONAL WEATHER SERVICE IN HASTINGS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWEST DAWSON COUNTY IN SOUTH CENTRAL NEBRASKA * UNTIL 930 PM CDT * AT 859 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH OF FARNAM...OR ABOUT 24 MILES WEST OF LEXINGTON...MOVING SOUTHEAST AT 30 MPH. * SOME LOCATIONS IN THE PATH OF THIS SEVERE STORM INCLUDE... FARNAM... RURAL SOUTHWESTERN DAWSON COUNTY... PEOPLE IN SOUTHWESTERN DAWSON COUNTY SHOULD SEEK SHELTER IN A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. THE PRIMARY SEVERE WEATHER THREAT IS LARGE HAIL THE SIZE OF PENNIES. LAT...LON 4070 10022 4070 9977 4090 9976 4090 10021 $$ GUYER/T 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 Jul 21, 3:00 PM CDT, 6 hours 3 minutes earlier.
Area forecast discussion, Jul 21, 3:00 PM CDT, 6 hours 3 minutes before
SOUTH CENTRAL NEBRASKA/NORTH CENTRAL KANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE HASTINGS NE 300 PM CDT MON JUL 21 2003 NO SIG CHANGES TO CURRENT...ONLY MINOR ADJUSTMENTS TO TEMPS AND PRECIP THROUGH FIRST 36 HRS. SFC LOW PRESS CENTER NEAR NWRN KS/NERN CO WITH FRONTAL BOUNDARY STRETCHING N AND SE OF THIS POINT FROM WRN DAKOTAS THROUGH WRN NE...THEN S THROUGH CENTRAL KS AND THROUGH THE SWRN CORNER OF MS. SPACE PICS SHOW STRONG UPR WAVE PUSHING INTO WRN NE FROM CNTRL ROCKIES AREA OF WY. ADDITIONAL LL MOISTURE CONVERGENT BOUNDARY RUNNING FROM OGALLALA NE TO SE BETWEEN MCCOOK AND HOLDREGE. LL DRY PUNCH FLOWING IN FROM NNW JUST E OF AN AINSWORTH TO SYDNEY NE LINE. THUS...SWRN NE AND NWRN KS LOOKS TO BE BEST AREA TO GET THUNDER GOING AT THIS TIME. LL SHEAR ALSO BEST IN THIS REGION...WITH BETTER UPR SHEAR MOVING OVR THIS AREA THROUGH EVENING...SO SEVERE CHANCES WILL REMAIN HIGH...AND SOMEWHAT ALONG AXIS OF HIGH THETA E/CAPE AIR...NEAR W OR SWRN PORTION CWA. LOOKS LIKE FAIRLY HIGH SUPER CELL CHCS NEAR THE AREA...AND WITH COLDER UPR TEMPS HAIL/WIND CERTAINTY WITH STORMS...WITH DECENT CHC FOR TORNADOES ESPECIALLY EARLY IN EVENT. STORMS LATER IN EVENING LOOK TO LINE OUT AND MAY TURN INTO WIND EVENT OVER N/NWRN KS...WITH SOME HAIL CHCS CONTINUING OVR N CNTRL KS THROUGH EARLY MORNING HRS. THEN INTO BEYOND...YADA YADA YADA...CONTINUED CHC PRECIP THROUGH MONDAY AS STRONG NRN PAC LOW MASHES WRN CONUS RIDGE AND FLOW GOES FROM FAST WRLY OVR WEEKEND TO COOL NWRLY EARLY NEXT WEEK. YIKES...COULD BE WET. .GID...NONE. 10
Hazardous weather outlook, Jul 21, 11:53 AM CDT, 9 hours 10 minutes before
KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-221200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE HASTINGS NE ISSUED BY NWS OMAHA/VALLEY NE 1150 AM CDT TUE JUL 22 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL NEBRASKA AND PARTS OF NORTH CENTRAL KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS WILL ONCE AGAIN BE POSSIBLE OVER SOUTH CENTRAL NEBRASKA AND PARTS OF NORTH CENTRAL KANSAS THIS AFTERNOON AND TONIGHT AS AN UPPER LEVEL DISTURBANCE MOVES THROUGH THE REGION. THE BEST CHANCE FOR SEVERE WEATHER IS ALONG AND SOUTHWEST OF LINE FROM KEARNEY TO SUPERIOR WHERE INSTABILITY WILL BE THE GREATEST LATE THIS AFTERNOON AND EVENING. WIND SHEAR IS SUFFICIENT TO SUPPORT SUPERCELL THUNDERSTORMS WITH THE MAIN HAZARDS BEING LARGE HAIL AND DAMAGING WINDS. THUNDERSTORMS WILL MOVE INTO CENTRAL KANSAS LATE TONIGHT WITH THE CHANCE OF SEVERE WEATHER DIMINISHING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE WILL BE ANOTHER CHANCE OF THUNDERSTORMS CHANCES ACROSS THE AREA LATE THURSDAY THROUGH SUNDAY. HOWEVER AT THIS TIME THE COVERAGE AND INTENSITY OF THESE STORMS ARE UNCERTAIN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND TONIGHT ACROSS SOUTH CENTRAL NEBRASKA AND NORTH CENTRAL KANSAS. DEWALD
In the hours before
Local storm report, Jul 21, 5:22 PM CDT, 3 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HASTINGS NE
522 PM CDT MON JUL 21 2003
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1010 PM BLUE HILL NE WIND DAMAGE
07/20/03 WEBSTER NUMEROUS TREES AND
LIMBS BLOWN DOWN ACROSS
TOWN. REPORTED BY
OFF-DUTY NWS EMPLOYEE.Nearby
Severe Thunderstorm Warnings in Nebraska, 2003Every severe thunderstorm warning in 2003
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.