Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Norman, OK
NWS Norman, OK issued this special weather statement at Mar 5, 2021, 12:27 AM CST for Seminole County, Oklahoma. It was in force for 33 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
- Mar 5, 2021, 12:27 AM CST (06:27 UTC)
- Expired
- Mar 5, 2021, 1:00 AM CST
- In force
- 33 min
- Issued by
- NWS Norman, OK
County Seminole County, OK
The radar
The Norman radar (KTLX), 63 km from the middle of the area, began a volume at 06:31 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.
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.5 hours before the alert went out and 76 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
- 1966 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 147 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Norman, OK wrote its last area forecast discussion before this special weather statement went out at Mar 4, 10:56 PM CST, 1 hour 31 minutes earlier.
Area forecast discussion, Mar 4, 10:56 PM CST, 1 hour 31 minutes before
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</html>Hazardous weather outlook, Mar 4, 6:48 PM CST, 5 hours 39 minutes before
Hazardous Weather Outlook...UPDATED National Weather Service Norman OK 648 PM CST Thu Mar 4 2021 OKZ004>048-050>052-TXZ083>090-051115- Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield- Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne- Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain- Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson- Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton- Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman- Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay- 648 PM CST Thu Mar 4 2021 This hazardous weather outlook is for portions of northern... western...central...and southern Oklahoma...and western north Texas. .DAY ONE...Through Tonight... .Thunderstorms... There is a chance of thunderstorms, primarily across western into northern Oklahoma. Although a majority of storms will just produce brief moderate to heavy rain, a few may become strong enough to briefly produce hail up to the size of quarters. .DAYS TWO THROUGH SEVEN...Friday through Wednesday... .Thunderstorms... Isolated non-severe storms will remain possible on Friday, mainly across northern and central Oklahoma through the morning. A storm system will bring another chance of thunderstorms to the area next Wednesday. .Fire Weather... Warm, breezy and dry conditions will result in elevated fire weather conditions across western Oklahoma and western north Texas on Sunday afternoon, along with next Tuesday and Wednesday. Get graphics and more details at weather.gov/norman...and follow our weather forecast office on Twitter and Facebook.
In the hours before
Special weather statement, Mar 4, 8:34 PM CST, 3 hours 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 834 PM CST Thu Mar 4 2021 OKZ021-022-050300- Washita OK-Beckham OK- 834 PM CST Thu Mar 4 2021 ...SIGNIFICANT WEATHER ADVISORY FOR northwestern Washita and northeastern Beckham Counties Until 900 PM CST... AT 830 PM CST, a strong thunderstorm was located 6 miles north of Carter, moving northeast at 30 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Locations impacted include... Elk City, Canute and Carter. PRECAUTIONARY/PREPAREDNESS ACTIONS... Severe weather is not expected and no warnings are anticipated at this time. && LAT...LON 3522 9951 3526 9962 3551 9950 3541 9922 TIME...MOT...LOC 0230Z 210DEG 25KT 3531 9953 11
Special weather statement, Mar 4, 8:48 PM CST, 3 hours 39 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 848 PM CST Thu Mar 4 2021 OKZ022-035-050315- Kiowa OK-Washita OK- 848 PM CST Thu Mar 4 2021 ...SIGNIFICANT WEATHER ADVISORY FOR northwestern Kiowa and south central Washita Counties Until 915 PM CST... AT 846 PM CST, a strong thunderstorm was located 4 miles west of Hobart, moving northeast at 50 MPH. HAZARDS INCLUDE... Hail up to the size of nickels... Locations impacted include... Hobart, Mountain View, Lone Wolf and Gotebo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Severe weather is not expected and no warnings are anticipated at this time. && LAT...LON 3494 9919 3501 9927 3526 9888 3508 9874 TIME...MOT...LOC 0246Z 238DEG 43KT 3501 9917 11
Special weather statement, Mar 4, 9:15 PM CST, 3 hours 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
915 PM CST Thu Mar 4 2021
OKZ022-050345-
Washita OK-
915 PM CST Thu Mar 4 2021
...SIGNIFICANT WEATHER ADVISORY FOR eastern Washita County Until 945
PM CST...
AT 912 PM CST, a strong thunderstorm was located near Rocky, moving
northeast at 35 MPH.
HAZARDS INCLUDE...
Hail up to the size of nickels...
Accumulation of smaller hail on roads...
Locations impacted include...
Cordell, Corn, Rocky, Colony and Cloud Chief.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3543 9887 3535 9864 3511 9896 3512 9897
3512 9910
TIME...MOT...LOC 0312Z 221DEG 30KT 3517 9900
11Special weather statement, Mar 4, 9:51 PM CST, 2 hours 36 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
951 PM CST Thu Mar 4 2021
OKZ017-018-024-050415-
Kingfisher OK-Canadian OK-Blaine OK-
951 PM CST Thu Mar 4 2021
...SIGNIFICANT WEATHER ADVISORY FOR western Kingfisher...northwestern
Canadian and southeastern Blaine Counties Until 1015 PM CST...
AT 949 PM CST, a strong thunderstorm was located 5 miles northeast of
Hydro, moving northeast at 40 MPH.
HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Accumulation of hail on roads possible...
Locations impacted include...
Greenfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Severe weather is not expected and no warnings are anticipated at
this time.
&&
LAT...LON 3582 9813 3555 9843 3555 9851 3556 9857
3587 9832
TIME...MOT...LOC 0349Z 215DEG 36KT 3558 9849
11Special weather statement, Mar 4, 10:03 PM CST, 2 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE Norman OK 1003 PM CST Thu Mar 4 2021 OKZ018-024-050430- Kingfisher OK-Canadian OK- 1003 PM CST Thu Mar 4 2021 ...SIGNIFICANT WEATHER ADVISORY FOR southeastern Kingfisher and north central Canadian Counties Until 1030 PM CST... AT 1001 PM CST, a strong thunderstorm was located 4 miles northwest of Concho, moving northeast at 30 MPH. HAZARDS INCLUDE... Hail up to one-half inch diameter... Locations impacted include... Kingfisher, Piedmont, Okarche and Concho. PRECAUTIONARY/PREPAREDNESS ACTIONS... Severe weather is not expected and no warnings are anticipated at this time. && LAT...LON 3593 9782 3574 9767 3557 9806 3565 9818 TIME...MOT...LOC 0401Z 235DEG 28KT 3565 9805 11
Special weather statement, Mar 5, 12:27 AM CST, 0 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 4, 7:59 PM CST | Special Weather Statement | OUN | Washita | 31 min |
| Mar 4, 8:34 PM CST | Special Weather Statement | OUN | Beckham | 26 min |
| Mar 4, 8:48 PM CST | Special Weather Statement | OUN | Kiowa | 27 min |
| Mar 4, 9:15 PM CST | Special Weather Statement | OUN | Washita | 30 min |
| Mar 4, 9:51 PM CST | Special Weather Statement | OUN | Blaine | 24 min |
| Mar 4, 10:03 PM CST | Special Weather Statement | OUN | Kingfisher | 27 min |
Nearby
Special Weather Statements in Oklahoma, 2021Every special weather statement in 2021
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.