At 129 AM MDT, a severe thunderstorm was located near Scotts Bluff National Monument, or near Scottsbluff, moving east at 40 mph. 3 INCH DIAMETER HAIL IS IMMINENT! PREPARE NOW FOR DESTRUCTIVE HAIL!
Here is an example of a Severe Thunderstorm Warning issued by the National Weather Service in Washington D.C. The audio file to the right is for Minnesota.
* Severe Thunderstorm Warning for... The City of Fairfax in northern Virginia... Central Fairfax County in northern Virginia... The City of Manassas Park in northern Virginia... Central Prince William County in northern Virginia... The City of Manassas in northern Virginia...
Severe Thunderstorm Warning VAC059-153-600-683-685-140130- /O.NEW.KLWX.SV.W.0529.190814T0058Z-190814T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Baltimore MD/Washington DC 858 PM EDT Tue Aug 13 2019
On August 19th, 2019 at 1:31 AM MDT, the National Weather Service in Cheyenne WY has incorporated the "emergency" wording to a Severe Thunderstorm Warning. This is unofficial wording that is used when an extremely intense Severe Storm impacts a largely populated location. In this case, 3 inch diameter hail was imminent for areas around both Scotts Bluff, and Gering, Wyoming.
Severe Weather Statement National Weather Service Cheyenne WY 131 AM MDT Fri Aug 16 2019
* At 858 PM EDT, a severe thunderstorm was located near Bull Run, or near Centreville, moving east at 25 mph.
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM MDT FOR SCOTTS BLUFF...NORTHEASTERN BANNER AND SOUTHEASTERN SIOUX COUNTIES...
...THIS IS A SEVERE THUNDERSTORM EMERGENCY FOR SCOTTSBLUFF AND GERING!...
The European Severe Weather Database (ESWD) collects and verifies reports on dust, sand- or steam devils, tornado sightings, gustnados, large hail, heavy rain and snowfall, severe wind gusts, damaging lightning strikes and avalanches all over Europe and around the Mediterranean. The ESWD is the most important database for such events in Europe. Everybody is welcome to report extreme weather observations. Each report undergoes a quality control and each event is flagged either as received (QC0), plausibility checked (QC0+), report confirmed by other observer (QC1) or as fully verified by trusted source (QC2).
REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes.
The following severe thunderstorm watch was issued for a large portion of the Northern Oklahoma and portions of Kansas and Missouri on April 25, 2017. URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 159 NWS Storm Prediction Center Norman OK 555 PM CDT Tue Apr 25 2017
* Severe Thunderstorm Watch for portions of Southeast Kansas Western Missouri Central and eastern Oklahoma
AVIATION...A few severe thunderstorms with hail surface and aloft to 3 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 23035.
The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 5 miles northwest of Oklahoma City OK to 50 miles north northeast of Joplin MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9).
SUMMARY...Strong to severe thunderstorms will continue to develop and intensify through the early/mid-evening hours, initially from central and northeast Oklahoma into far southeast Kansas. Large hail and damaging winds should be the most common hazard, although some tornado risk may exist as low-level moisture and low-shear both increase this evening.
Due to its local-scale nature, a watch is typically issued in advance for public forecast areas where conditions may be favourable for the development of severe weather. A warning is issued for areas where severe weather is imminent or occurring. Unlike other warnings, these are issued for smaller warning areas within its regular forecast region.
URGENT - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WATCH NUMBER 405 NWS STORM PREDICTION CENTER NORMAN OK 840 PM CDT MON MAY 30 2011 THE NWS STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF PARTS OF NORTHWEST IOWA PARTS OF CENTRAL KANSAS MUCH OF EASTERN NEBRASKA SMALL PART OF SOUTHEASTERN SOUTH DAKOTA EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 840 PM UNTIL 200 AM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... WIDESPREAD DAMAGING WINDS WIND GUSTS TO 90 MPH LIKELY SCATTERED LARGE HAIL ISOLATED HAIL TO 1.5 INCHES IN DIAMETER POSSIBLE ISOLATED TORNADOES THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75 STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF SIOUX CITY IOWA TO 50 MILES SOUTH SOUTHEAST OF RUSSELL KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5). REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES. OTHER WATCH INFORMATION...CONTINUE...WW 402...WW 403... DISCUSSION...INTENSE SQUALL LINE HAS DEVELOPED N/S ACROSS CENTRAL NEB AND CONTINUES TO DEVELOP SWD AS IT MOVES EWD. VERY STRONG PRES RISE/FALL COUPLET IS DRIVING THE LINE EWD WITH THE FORCING FROM LARGE SCALE TROUGH ROTATING ACROSS THE NRN/CENTRAL PLAINS PROVIDING BOTH SHEAR AND UPWARD MOTION TO RESULT IN POTENTIAL FOR VERY DAMAGING WINDS. IN ADDITION BRIEF TORNADOES ARE STILL POSSIBLE BUT DAMAGING WINDS NOW ARE THE DOMINANT THREAT. AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 23040. ...HALES
A severe weather outbreak is typically considered to be when ten or more tornadoes, some of which will likely be long-tracked and violent, and many large hail or damaging wind reports occur within one or more consecutive days. Severity is also dependent on the size of the geographic area affected, whether it covers hundreds or thousands of square kilometers.