Alert archive / Texas / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 21, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 21, 2013, 7:38 AM CDT for Deaf Smith County, Potter County, Randall County, Texas. It was in force for 67 min. 2 reports 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
- May 21, 2013, 7:38 AM CDT (12:38 UTC)
- Expired
- May 21, 2013, 8:45 AM CDT
- In force
- 67 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
Counties Deaf Smith County, TX, Potter County, TX, Randall County, TX
The radar
The Amarillo radar (KAMA), 42 km from the middle of the area, began a volume at 12:39 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 |
|---|---|---|---|
| May 21, 8:02 AM CDT | TSTM WND GST 61 | 1 E Canyon, TX | 61 MPH GUST ON EAST SIDE OF CANYON NEAR WTAMU EVENTS CENTER |
| May 21, 8:05 AM CDT | TSTM WND DMG | Canyon, TX | TWO SEMI TRUCKS OVERTURNED ALONG I27 |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 0.6 hours before the alert went out and 42 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
- 1767 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
669
WUUS54 KAMA 211238
SVRAMA
TXC117-375-381-211345-
/O.NEW.KAMA.SV.W.0021.130521T1238Z-130521T1345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
738 AM CDT TUE MAY 21 2013
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN DEAF SMITH COUNTY IN THE PANHANDLE OF TEXAS...
SOUTH CENTRAL POTTER COUNTY IN THE PANHANDLE OF TEXAS...
RANDALL COUNTY IN THE PANHANDLE OF TEXAS...
* UNTIL 845 AM CDT
* AT 734 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED 3 MILES SOUTHWEST OF BUFFALO LAKE...OR 13 MILES EAST OF
HEREFORD...AND MOVING NORTHEAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
CANYON... AMARILLO... UMBARGER...
PALO DURO CANYON... LAKE TANGLEWOOD... DAWN...
BUFFALO LAKE... TIMBERCREEK CANYON...
THIS INCLUDES INTERSTATE 27 BETWEEN MILE MARKERS 91 AND 123.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 61 AND 74.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3494 10236 3530 10188 3501 10162 3475 10163
3475 10223
TIME...MOT...LOC 1238Z 243DEG 22KT 3487 10214
$$
JOHNSON3 follow-up statements
030
WWUS54 KAMA 211251
SVSAMA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
751 AM CDT TUE MAY 21 2013
TXC117-375-381-211345-
/O.CON.KAMA.SV.W.0021.000000T0000Z-130521T1345Z/
DEAF SMITH TX-POTTER TX-RANDALL TX-
751 AM CDT TUE MAY 21 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR RANDALL...
SOUTH CENTRAL POTTER AND SOUTHEASTERN DEAF SMITH COUNTIES UNTIL 845
AM CDT...
AT 749 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 4
MILES EAST OF BUFFALO LAKE...OR 10 MILES SOUTHWEST OF CANYON...MOVING
NORTHEAST AT 25 MPH.
* LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE...
CANYON... AMARILLO... UMBARGER...
PALO DURO CANYON... LAKE TANGLEWOOD... DAWN...
BUFFALO LAKE... TIMBERCREEK CANYON...
THIS INCLUDES INTERSTATE 27 BETWEEN MILE MARKERS 91 AND 123.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 61 AND 74.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3494 10236 3530 10188 3501 10162 3475 10163
3475 10223
TIME...MOT...LOC 1251Z 243DEG 22KT 3491 10205
$$
JOHNSON490
WWUS54 KAMA 211302
SVSAMA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
802 AM CDT TUE MAY 21 2013
TXC117-211312-
/O.CAN.KAMA.SV.W.0021.000000T0000Z-130521T1345Z/
DEAF SMITH TX-
802 AM CDT TUE MAY 21 2013
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DEAF SMITH COUNTY
IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE COUNTY.
LAT...LON 3475 10216 3509 10216 3530 10188 3501 10162
3475 10163
TIME...MOT...LOC 1302Z 243DEG 22KT 3494 10198
$$
TXC375-381-211345-
/O.CON.KAMA.SV.W.0021.000000T0000Z-130521T1345Z/
POTTER TX-RANDALL TX-
802 AM CDT TUE MAY 21 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR RANDALL AND
SOUTH CENTRAL POTTER COUNTIES UNTIL 845 AM CDT...
AT 758 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6
MILES SOUTHWEST OF CANYON...MOVING NORTHEAST AT 25 MPH.
* LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE...
CANYON... AMARILLO... UMBARGER...
PALO DURO CANYON... LAKE TANGLEWOOD... BUFFALO LAKE...
TIMBERCREEK CANYON...
THIS INCLUDES INTERSTATE 27 BETWEEN MILE MARKERS 91 AND 123.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 61 AND 73.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3475 10216 3509 10216 3530 10188 3501 10162
3475 10163
TIME...MOT...LOC 1302Z 243DEG 22KT 3494 10198
$$
JOHNSON745
WWUS54 KAMA 211329
SVSAMA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
829 AM CDT TUE MAY 21 2013
TXC375-381-211345-
/O.CON.KAMA.SV.W.0021.000000T0000Z-130521T1345Z/
POTTER TX-RANDALL TX-
829 AM CDT TUE MAY 21 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR RANDALL AND
SOUTH CENTRAL POTTER COUNTIES UNTIL 845 AM CDT...
AT 826 AM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
TRACK A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
EXCESS OF 70 MPH. THIS STORM WAS LOCATED 3 MILES WEST OF LAKE
TANGLEWOOD...OR 7 MILES NORTHEAST OF CANYON...MOVING NORTHEAST AT 25
MPH.
* LOCATIONS IN THE PATH OF THIS SEVERE THUNDERSTORM INCLUDE...
CANYON... AMARILLO... UMBARGER...
PALO DURO CANYON... LAKE TANGLEWOOD... BUFFALO LAKE...
TIMBERCREEK CANYON...
THIS INCLUDES INTERSTATE 27 BETWEEN MILE MARKERS 91 AND 123.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 61 AND 74.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3475 10216 3509 10216 3530 10188 3501 10162
3475 10163
TIME...MOT...LOC 1329Z 243DEG 22KT 3506 10182
$$
JOHNSONThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 6:58 AM CDT | Special Weather Statement | AMA | Deaf Smith | 47 min |
| May 21, 7:19 AM CDT | Special Weather Statement | AMA | Randall | 26 min |
| May 21, 8:08 AM CDT | Areal Flood Advisory | AMA | Potter, Randall | 3 hr |
| May 21, 8:18 AM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson, Potter, Randall | 57 min |
| May 21, 9:03 AM CDT | Special Weather Statement | AMA | Carson, Gray | 27 min |
| May 21, 9:04 AM CDT | Special Weather Statement | AMA | Collingsworth | 26 min |
| May 21, 9:06 AM CDT | Special Weather Statement | AMA | Donley | 24 min |
| May 21, 9:32 AM CDT | Special Weather Statement | AMA | Collingsworth | 43 min |
| May 21, 10:16 AM CDT | Special Weather Statement | AMA | Wheeler | 44 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2013Every severe thunderstorm warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.