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Claremore, OK Weather Warnings

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Claremore Weather Advisory

WEATHER ALERT

Issue Date: 530 AM CDT Tue May 21 2024
This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma.

DAY ONE
Today and Tonight. TORNADO. RISK
Limited. AREA
Mainly Far Northeast Oklahoma and Far Northwest Arkansas. ONSET
Late Afternoon. SEVERE THUNDERSTORM. RISK
Elevated. AREA
Eastern Oklahoma and Northwest Arkansas. ONSET
Mid to Late Afternoon. HEAVY RAIN. RISK
Limited. AREA
Mainly Northwest Arkansas. ONSET
Early Evening. SIGNIFICANT WINDS. RISK
Limited. AREA
Northeast Oklahoma and Far Northwest Arkansas. ONSET
Ongoing. DISCUSSION
South winds will gust to near 30 miles an hour at times today across parts of northeast Oklahoma and far northwest Arkansas. Scattered thunderstorms may develop from parts of southeast Oklahoma into western Arkansas by mid to late afternoon. These storms will have a limited severe weather potential with large hail being the main threat. By late afternoon, storms may begin to form near a cold front that will be entering northeast Oklahoma. These storms will continue well into the evening and will advance southeast with the cold front. The greatest storm coverage will be across far northeast Oklahoma and northwest Arkansas. All severe hazards will be possible with these storms through the evening hours. Locally heavy rainfall will also be possible with the storms this evening, mainly across parts of northwest Arkansas. Additional storms may develop along the cold front late tonight across mainly southeast Oklahoma, and will carry at least a limited severe weather threat. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT
Activation of the Regional Spotter Network Likely.

DAYS TWO THROUGH SEVEN
Wednesday through Monday. WEDNESDAY and THURSDAY
Severe Thunderstorm Potential
Heavy Rain Potential. FRIDAY
Thunderstorm Potential. SATURDAY
Severe Thunderstorm Potential. SUNDAY and MONDAY
Thunderstorm Potential. EXTENDED DISCUSSION
Thunderstorms may be ongoing Wednesday morning across mainly southeast Oklahoma with a continued severe weather threat. Additional storms will form throughout the day Wednesday as the frontal boundary stalls near the Red River. Severe weather and heavy rainfall will both be possible with these storms. Another round of strong to severe thunderstorms is expected Thursday afternoon and evening as an upper level storm system moves across the area. Locally heavy rainfall will again be possible at this time. An active weather pattern will continue through the weekend with periodic storm chances. As of now, it appears the best chance for severe storms over the weekend will be Saturday evening and overnight. weather.gov/tulsa contains additional information.

WEATHER ALERT

Issue Date: 530 AM CDT Tue May 21 2024
This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Today and Tonight. TORNADO. RISK...Limited. AREA...Mainly Far Northeast Oklahoma and Far Northwest Arkansas. ONSET...Late Afternoon. SEVERE THUNDERSTORM. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Mid to Late Afternoon. HEAVY RAIN. RISK...Limited. AREA...Mainly Northwest Arkansas. ONSET...Early Evening. SIGNIFICANT WINDS. RISK...Limited. AREA...Northeast Oklahoma and Far Northwest Arkansas. ONSET...Ongoing. DISCUSSION... South winds will gust to near 30 miles an hour at times today across parts of northeast Oklahoma and far northwest Arkansas. Scattered thunderstorms may develop from parts of southeast Oklahoma into western Arkansas by mid to late afternoon. These storms will have a limited severe weather potential with large hail being the main threat. By late afternoon, storms may begin to form near a cold front that will be entering northeast Oklahoma. These storms will continue well into the evening and will advance southeast with the cold front. The greatest storm coverage will be across far northeast Oklahoma and northwest Arkansas. All severe hazards will be possible with these storms through the evening hours. Locally heavy rainfall will also be possible with the storms this evening, mainly across parts of northwest Arkansas. Additional storms may develop along the cold front late tonight across mainly southeast Oklahoma, and will carry at least a limited severe weather threat. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Likely. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. WEDNESDAY and THURSDAY...Severe Thunderstorm Potential...Heavy Rain Potential. FRIDAY...Thunderstorm Potential. SATURDAY...Severe Thunderstorm Potential. SUNDAY and MONDAY...Thunderstorm Potential. EXTENDED DISCUSSION... Thunderstorms may be ongoing Wednesday morning across mainly southeast Oklahoma with a continued severe weather threat. Additional storms will form throughout the day Wednesday as the frontal boundary stalls near the Red River. Severe weather and heavy rainfall will both be possible with these storms. Another round of strong to severe thunderstorms is expected Thursday afternoon and evening as an upper level storm system moves across the area. Locally heavy rainfall will again be possible at this time. An active weather pattern will continue through the weekend with periodic storm chances. As of now, it appears the best chance for severe storms over the weekend will be Saturday evening and overnight. weather.gov/tulsa contains additional information.
Claremore, OK Weather Warnings, Advisories and Alerts are issued by the National Weather Service.
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Weather Warnings Explained

National Weather Service criteria for issuing Watches / Warnings / Advisories:

  • Watches: 50% confidence of meeting Warning criteria (generally within 36-48+ hours).
  • Advisories and Warnings: 80% confidence in the event occurrence (generally within 24-36 hours).

Weather Warnings Glossary


A Severe Thunderstorm Watch is issued when severe thunderstorms are possible in and near the watch area. It does not mean that they will occur. It only means they are possible.

Severe thunderstorms are defined as follows:

1) Winds of 58 mph/93 km/h or higher

AND/OR

2) Hail 1 inch/2.54 cm in diameter or larger.

A Severe Thunderstorm Warning is issued when severe thunderstorms are occurring or imminent in the warning area.

Severe thunderstorms are defined as follows:

1) Winds of 58 mph/93 km/h or higher

AND/OR

2) Hail 1 inch/2.54 cm in diameter or larger.

Thunderstorms with wind gusts greater than or equal to 58 mph/93 km/h (50 kts) and/or hail greater than or equal to 1 inch/2.54 cm in diameter and/or a tornado.

A Tornado Watch is issued when severe thunderstorms and tornadoes are possible in and near the watch area. It does not mean that they will occur. It only means they are possible.

Severe thunderstorms are defined as follows:

1) Winds of 58 mph/93 km/h or higher

AND/OR

2) Hail 1 in/2.54 cm in diameter or larger.

Likelihood of a tornado within the given area based on radar or actual sighting; usually accompanied by conditions indicated above for "Severe Thunderstorm Warning".

A Tornado Warning is issued when a tornado is imminent. When a tornado warning is issued, seek safe shelter immediately.

When any of the following is expected within the next 12 to 36 hours.

More than one predominant hazard.

  • Winter weather event having more than one predominant hazard {ie. heavy snow and blowing snow (below blizzard conditions), snow and ice, snow and sleet, sleet and ice, or snow, sleet and ice} meeting or exceeding warning criteria for at least one of the precipitation elements.
Snow, Ocean Effect Snow, or Sleet.

A Blizzard Warning means that the following conditions are occurring or expected within the next 12 to 18 hours.
1) Snow and/or blowing snow reducing visibility to ¼ mile/.4 km or less for 3 hours or longer
AND
2)  Sustained winds of 35 mph/56 km/h or greater or frequent gusts to 35 mph/56 km/h or greater.
There is no temperature requirement that must be met to achieve blizzard conditions.

½ inch/1.27 cm or greater accretion of freezing rain in any zone.

When any of the following is expected within the next 12 to 24 hours.

More than one predominant hazard.

Winter weather event having more than one predominant hazard (i.e., snow and ice, snow and sleet, or snow, ice & sleet) meeting or exceeding advisory criteria for at least one of the precipitation elements, but remaining below warning criteria.

  • Snow, Ocean Effect Snow, and/or Sleet
    3 inches/7.6 cm averaged over a forecast zone in 12 hours.
  • Snow and Blowing Snow
    Sustained or frequent gusts of 25 to 34 mph/40 to 54 km/h accompanied by falling and blowing snow occasionally reducing visibility to less than or equal to ¼ mi/.4 km for less than 3 hours.
  • Widespread or localized blowing snow reducing visibility to less than or equal to ¼ mi/.4 km with winds less than 35 mph/56 km/h.
  • Freezing Rain
    Any accretion of freezing rain or freezing drizzle on road surfaces.
  • Black Ice
    A Special Weather Statement will usually be issued when sufficient moisture is expected to cause a thin layer of ice on road surfaces, typically on cloudless nights ("black ice"). At forecaster discretion a formal Winter Weather Advisory may be issued instead.

Sustained winds greater than or equal to 74 mph/120 km/h (greater than or equal to 64 kts) (no gust criteria) associated with a hurricane expected to affect a coastal or inland zone within 36 hours.

Sustained winds 39-73 mph/62-117 km/h (34-63 kts) (no gust criteria) associated with a tropical storm expected to affect a coastal or inland zone within 36 hours.

Short-fused warning for onset of extreme winds, defined as sustained at 111+ mph/178+ km/h (equivalent to a Category 3+ hurricane).
This is typically used for the approach of the eyewall of a major landfalling hurricane.

When the danger of life-threatening inundation from rising water moving inland from the shoreline somewhere within the specified area, generally within 36 hours, is in association with a tropical, subtropical, or post-tropical cyclone.

Rapid and extreme flow of high water into a normally dry area, or a rapid water level rise in a stream or creek above a predetermined flood level, beginning within a short timeframe from the onset of heavy rain.

A dam or levee failure, or water released from an ice jam is also considered.

Expected overflow or inundation by water which causes or will cause damage and/or a threat to life.

Water level at a River Forecast point along a main stem river is expected to reach or exceed flood stage.

Expected inundation by water of some low lying and poor drainage areas, resulting in a nuisance to the public but not a threat to life and property.

A Coastal Flood Warning is issued when moderate to major coastal flooding is occurring or imminent. This flooding will pose a serious risk to life and property.

Minor coastal flooding expected. Examples include: splashover that causes a few roads to be briefly impassable, standing water in parking lots, etc.

A Coastal Flood Advisory is issued when minor or nuisance coastal flooding is occurring or imminent.

Sustained winds greater than or equal to 40 mph/64 km/h (greater than or equal to 35 kts) for at least 1 hour; OR any gusts greater than or equal to 58 mph/93 km/h (greater than or equal to 50 kts).

Sustained winds 31-39 mph/49-62 km/h (27-34 kts) for at least 1 hour; OR any gusts to 46-57 mph/74-91 km/h (40-49 kts).

Daytime heat indices of greater than or equal to 105°F/40°C for 2 or more hours.

Daytime heat indices of 95°F-99°F/35°C-37°C for 2 or more hours over 2 consecutive days, or 100°F-104°F/37°C-40°C for 2 or more hours over 1 day.

Issued for non-criteria warning/advisory heat. A heat wave is defined as 3 or more days of greater than or equal to 90°F/32°C temperatures.

When minimum shelter temperature drops to less than or equal to 32°F/0°C during growing season.

Issued under clear, light wind conditions with forecast minimum shelter temperature 33-36°F/0-2°C during growing season.

Wind chill index less than or equal to -25°F/-31°C for at least 3 hours using only sustained wind.

Wind chill index between -15°F/-26°C and -24°F/-31°C for at least 3 hours using only the sustained wind.

Brief/sudden occurrence of sustained wind or frequent gusts greater than or equal to 34 kts/39 mph/63 km/h, usually associated with thunderstorms, and/or hail greater than or equal to ¾ inch/1.91 cm in diameter; also issued for waterspouts.

Sustained winds or frequent gusts greater than or equal to 64 kts/74 mph/119 km/h (greater than 2 hrs) within 24 hours from a non-tropical system (marine only).

Sustained winds or frequent gusts 48-63 kts/55-72 mph/88-116 km/h (greater than 2 hrs) within 24 hours from a non-tropical system (marine only).

Sustained winds or frequent gusts 34-47 kts/39-55 mph/63-88 km/h (greater than 2 hrs) within 24 hrs from a non-tropical system (marine only).

Sustained winds or frequent gusts 25-33 kts/29-38 mph/47-61 km/h (greater than 2 hrs) AND/OR Seas greater than or equal to 5 feet/1.52 meters within 24 hours (marine only).

When high surf poses a danger to life in the form of rip currents or breaking seas. Generally issued when 7+ foot/2.3+ meters incoming seas reported at the buoys from Memorial Day through September.

When conditions yield ice accumulation rates less than 2 cm/hr ( 0.8 inch/hour). Favorable conditions for ice accumulation occur when air temperatures over the waters are less than or equal to 23°F/-5°C and sustained winds greater than or equal to 25 kts/29 mph/47 km/h and sea surface temperatures less than or equal to 43°F/6°C and seas greater than or equal to 4 feet/1.22 meters.

When conditions yield ice accumulation rates greater than or equal to 2 cm/hr ( 0.8 inch/hr ). Favorable conditions for ice accumulation occur when air temperatures over the waters are less than or equal to 23°F/-5°C and sustained winds greater than or equal to 25 kts/29 mph/47 km/h and sea surface temperatures less than or equal to 43°F/6°C and seas greater than or equal to 4 feet/1.22 meters.

High degree of confidence that dry fuels and weather conditions support extreme fire danger within 24 hours using the following criteria as a guide:

  • Winds sustained or with frequent gusts greater than or equal to 25 mph/40 km/h.
  • Relative Humidity at or below 30% anytime during the day.
  • Rainfall amounts for the previous 5 days less than ¼ inch/.64 cm (except 3 days in pre-greenup).
  • Lightning after an extended dry period.
  • Significant dry frontal passage.
  • Dry thunderstorms.
  • Keetch-Byram Drought Index values of 300 or greater (summer only).

Widespread visibility less than or equal to ¼ mile/.4 km for at least 3 hours.

Very light ice accumulation from predominantly fog at or below freezing temperatures.

Widespread or localized smoke reducing visibilities to ¼ mile/.4 km or less.

Atmospheric conditions stable enough to cause air pollutants to accumulate in a given area. Criteria developed in conjunction with the local or state EPA and the product issued at their request.

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