Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 107, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jun 11, 2000, 7:27 PM CDT for Texas County, Oklahoma. It was in force for 48 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Jun 11, 2000, 7:27 PM CDT (00:27 UTC)
- Expired
- Jun 11, 2000, 8:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Texas County, OK
The radar
The Dodge City radar (KDDC), 175 km from the middle of the area, began a volume at 00:30 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 |
|---|---|---|---|
| Jun 11, 7:34 PM CDT | Hail 0.75 | Goodwell, OK | |
| Jun 11, 7:48 PM CDT | Hail 0.88 | Guymon, OK |
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 |
|---|---|---|---|
| Jun 11, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.5 hours before the alert went out and 175 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
- 1756 J/kg
- Mixed-layer CIN
- -113 J/kg
- Mixed-layer LCL
- 1394 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 7.1
The text
As transmitted, in the capitals the NWS used until 2016.
727 WUUS54 KAMA 120029 SVRAMA OKC139-120115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AMARILLO TX 727 PM CDT SUN JUN 11 2000 THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... TEXAS COUNTY IN THE OKLAHOMA PANHANDLE * UNTIL 815 PM CDT * AT 727 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 7 MILES NORTH OF HOUGH TO 4 MILES NORTHWEST OF TEXHOMA...MOVING EAST AT 20 MPH. * SOME LOCATIONS AFFECTED BY THESE STORMS INCLUDE... GUYMON...ADAMS...BAKER...GOODWELL...HARDESTY...HOOKER... HOUGH...OPTIMA...TEXHOMA AND TYRONE LARGE HAIL...DAMAGING WINDS...AND TORRENTIAL RAINS ARE EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL SHELTER. LAT...LON 3699 10184 3650 10203 3651 10098 3700 10095
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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 3:15 PM CDT, 4 hours 12 minutes earlier.
Area forecast discussion, Jun 11, 3:15 PM CDT, 4 hours 12 minutes before
TEXAS/OKLAHOMA PANHANDLES FORECAST DISCUSSION NATIONAL WEATHER SERVICE AMARILLO TX 315 PM CDT SUN JUN 11 2000 SEVERAL OUTFLOW BOUNDARIES WERE SCATTERED ACROSS SRN HIGH PLAINS IN WAKE OF OVERNIGHT AND MORNING CONVECTION...WITH PRIMARY BOUNDARY ORIENTED FROM W OF KCAO...S OF KDHT...S OF KAMA AND S OF KCDS. MEANWHILE...A BARRAGE OF MINOR MID/UPR LVL DISTURBANCES ROTATING THROUGH BASE OF WRN U.S. TROUGH CONTINUE TO TAKE AIM ON W TX. SHORT RANGE MODELS CONTINUE TO EXHIBIT DIFFICULTY IN REGARDS TO THESE DISTURBANCES AND HAVE PERSISTANTLY DOWNPLAYED AFTN/NTTIME CONVECTION AND ASSOCIATED QPF. OTHERWISE...MODELS HAVE PERFORMED RATHER WELL. IN THE NEAR TERM...SVR WX POTENTIAL IS MAIN CONCERN. 18Z RUC2 INDICATING AN AREA OF 3000 PLUS CAPE OVER THE SWRN TWO-THIRDS OF TX PNHDL AND GOES SOUNDER IMAGERY INDICATING LI/S BELOW -10. ALSO... PERSISTENT AREA OF MOISTURE CONVERGENCE CENTERED NEAR KCVS ON MSAS IS THOUGHT TO BE IN VICINITY OF JUNCTION BETWEEN REMNANT OUTFLOW BOUNDARY AND LEE SFC TROUGH OVER THE HIGHER TERRAIN OF ERN NM. DESPITE WEAK FLOW IN MID AND UPR LVLS...WINDS ALOFT WILL STRENGTHEN SOME THROUGH THE EVENING AS SMALL JETLET PASSES OVER THE RGN. COMBINE THIS WITH MODERATELY STRONG LOW TO MID LVL VEERING OF WINDS...DEPICTED ON KAMA VWP AND KTCC PRFLR...UPDRAFTS SHOULD EASILY ROTATE. MAIN THREAT LOOKS TO BE WET MICROBURSTS AND LARGE HAIL...BUT A COUPLE OF TORNADOES ARE NOT IMPOSSIBLE WITH THE PRESENCE OF OUTFLOW BOUNDARIES. AS THE EVENING PROGRESSES...LOCALLY HVY RAINFALL WILL LIKELY BECOME MAIN FOCUS. MORE OF THE SAME CAN BE EXPECTED ON MON. HOWEVER...CURRENT THINKING IS THAT SVR POTENTIAL MAY NOT BE AS PREVELANT. THUS...WILL KEEP POPS IN CHANCE CATEGORY FOR MON. BETTER CHANCES SHOULD COME TUE AFTN THROUGH EARLY WED AS POWERHOUSE MID/UPR LVL TROUGH DEVELOPS OVER THE PACIFIC NW AND DIVES SE THROUGH THE ROCKIES AND INTO THE CNTRL U.S....BRINGING A FAIRLY STRONG COLD FRONT WITH IT. ALTHOUGH THINGS COULD EASILY CHANGE BY TUE EVENING...WOULD NOT BE SURPRISED TO SEE SIGNIFICANT CONVECTIVE EPISODE OVER THE CNTRL AND SRN PLAINS. IN THE EXTENDED...RESIDUAL PCPN POSSIBLE ON WED BEHIND FRONT BEFORE DRYING OUT THU AND FRI. ASIDE FROM A TWEAK HERE AND THERE...CURRENT EXTDD FCST LOOKS GOOD. AMA 66/89 66/91 64 7343 DHT 62/88 63/91 61 7343 BGD 65/88 65/90 64 6343 GUY 64/88 64/90 64 6343 HHF 68/86 66/90 66 6343 WLG 69/88 69/92 68 6343 .AMA...< TX...NONE. OK...NONE. JH
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 2:23 PM CDT | Severe Thunderstorm Warning | AMA | Cimarron | 52 min |
| Jun 12, 4:25 PM CDT | Severe Thunderstorm Warning | AMA | Cimarron | 50 min |
| Jun 12, 5:45 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 60 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000
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.